コード例 #1
0
 def __getCatalogObject(self):
     try:
         if not self.oCatalog:
             self.oCatalog = CatalogInterface()
         return S_OK()
     except:
         return S_ERROR()
コード例 #2
0
    def __getCatalogObject(self):
        """ CatalogInterface instance facade

    :param self: self reference
    """
        try:
            if not self.oCatalog:
                self.oCatalog = CatalogInterface()
            return S_OK()
        except:
            return S_ERROR()
コード例 #3
0
ファイル: FTSRequest.py プロジェクト: caitriana/DIRAC
 def __getCatalogObject( self ):
   try:
     if not self.oCatalog:
       self.oCatalog = CatalogInterface()
     return S_OK()
   except:
     return S_ERROR()
コード例 #4
0
ファイル: FTSRequest.py プロジェクト: sbel/bes3-jinr
  def __getCatalogObject( self ):
    """ CatalogInterface instance facade

    :param self: self reference
    """
    try:
      if not self.oCatalog:
        self.oCatalog = CatalogInterface()
      return S_OK()
    except:
      return S_ERROR()
コード例 #5
0
ファイル: FTSRequest.py プロジェクト: sbel/bes3-jinr
class FTSRequest( object ):
  """
  .. class:: FTSRequest

  Helper class for FTS job submission and monitoring.
  """

  # # default checksum type
  __defaultCksmType = "ADLER32"
  # # flag to disablr/enable checksum test, default: disabled
  __cksmTest = False

  def __init__( self ):
    """c'tor

    :param self: self reference
    """
    self.log = gLogger.getSubLogger( self.__class__.__name__, True )

    # # final states tuple
    self.finalStates = ( 'Canceled', 'Failed', 'Hold',
                         'Finished', 'FinishedDirty' )
    # # failed states tuple
    self.failedStates = ( 'Canceled', 'Failed',
                          'Hold', 'FinishedDirty' )
    # # successful states tuple
    self.successfulStates = ( 'Finished', 'Done' )
    # # all file states tuple
    self.fileStates = ( 'Done', 'Active', 'Pending', 'Ready', 'Canceled', 'Failed',
                        'Finishing', 'Finished', 'Submitted', 'Hold', 'Waiting' )

    self.newlyCompletedFiles = []
    self.newlyFailedFiles = []

    self.statusSummary = {}

    # # request status
    self.requestStatus = 'Unknown'

    # # dict for FTS job files
    self.fileDict = {}
    # # dict for replicas information
    self.catalogReplicas = {}
    # # dict for metadata information
    self.catalogMetadata = {}
    # # dict for files that failed to register
    self.failedRegistrations = {}

    # # placehoder for CatalogInterface reference
    self.oCatalog = None

    # # submit timestamp
    self.submitTime = ''

    # # placeholder FTS job GUID
    self.ftsGUID = ''
    # # placeholder for FTS server URL
    self.ftsServer = ''
    # # not used
    self.priority = 3

    # # flag marking FTS job completness
    self.isTerminal = False
    # # completness percentage
    self.percentageComplete = 0.0

    # # source SE name
    self.sourceSE = ''
    # # flag marking source SE validity
    self.sourceValid = False
    # # source space token
    self.sourceToken = ''

    # # target SE name
    self.targetSE = ''
    # # flag marking target SE validity
    self.targetValid = False
    # # target space token
    self.targetToken = ''

    # # whatever
    self.dumpStr = ''

    # # placeholder for surl file
    self.surlFile = None

    # # placeholder for target StorageElement
    self.oTargetSE = None
    # # placeholder for source StorageElement
    self.oSourceSE = None

    # # checksum type, set it to default
    self.__cksmType = self.__defaultCksmType
    # # disable checksum test by default
    self.__cksmTest = False

    # # replica manager handler
    self.replicaManager = ReplicaManager()

    # # statuses that prevent submitting to FTS
    self.noSubmitStatus = ( 'Failed', 'Done', 'Staging' )

    # # were sources resolved?
    self.sourceResolved = False

    # # Number of file transfers actually submitted
    self.submittedFiles = 0

  ####################################################################
  #
  #  Methods for setting/getting/checking the SEs
  #

  def setSourceSE( self, se ):
    """ set SE for source

    :param self: self reference
    :param str se: source SE name
    """
    if se == self.targetSE:
      return S_ERROR( "SourceSE is TargetSE" )
    self.sourceSE = se
    self.oSourceSE = StorageElement( self.sourceSE )
    return self.__checkSourceSE()

  def getSourceSE( self ):
    """ source SE getter

    :param self: self reference
    """
    if not self.sourceSE:
      return S_ERROR( "Source SE not defined" )
    return S_OK( self.sourceSE )

  def setSourceToken( self, token ):
    """ set source space token

    :param self: self reference
    :param str token: source space token
    """
    self.sourceToken = token
    return S_OK()

  def getSourceToken( self ):
    """ source space token getter

    :param self: self reference
    """
    if not self.sourceToken:
      return S_ERROR( "Source token not defined" )
    return S_OK( self.sourceToken )

  def __checkSourceSE( self ):
    """ check source SE availability

    :param self: self reference
    """
    if not self.sourceSE:
      return S_ERROR( "SourceSE not set" )
    res = self.oSourceSE.isValid( 'Read' )
    if not res['OK']:
      return S_ERROR( "SourceSE not available for reading" )
    res = self.__getSESpaceToken( self.oSourceSE )
    if not res['OK']:
      self.log.error( "FTSRequest failed to get SRM Space Token for SourceSE", res['Message'] )
      return S_ERROR( "SourceSE does not support FTS transfers" )

    if self.__cksmTest:
      res = self.oSourceSE.getChecksumType()
      if not res["OK"]:
        self.log.error( "Unable to get checksum type for SourceSE %s: %s" % ( self.sourceSE,
                                                                             res["Message"] ) )
        cksmType = res["Value"]
        if cksmType in ( "NONE", "NULL" ):
          self.log.warn( "Checksum type set to %s at SourceSE %s, disabling checksum test" % ( cksmType,
                                                                                              self.sourceSE ) )
          self.__cksmTest = False
        elif cksmType != self.__cksmType:
          self.log.warn( "Checksum type mismatch, disabling checksum test" )
          self.__cksmTest = False

    self.sourceToken = res['Value']
    self.sourceValid = True
    return S_OK()

  def setTargetSE( self, se ):
    """ set target SE

    :param self: self reference
    :param str se: target SE name
    """
    if se == self.sourceSE:
      return S_ERROR( "TargetSE is SourceSE" )
    self.targetSE = se
    self.oTargetSE = StorageElement( self.targetSE )
    return self.__checkTargetSE()

  def getTargetSE( self ):
    """ target SE getter

    :param self: self reference
    """
    if not self.targetSE:
      return S_ERROR( "Target SE not defined" )
    return S_OK( self.targetSE )

  def setTargetToken( self, token ):
    """ target space token setter

    :param self: self reference
    :param str token: target space token
    """
    self.targetToken = token
    return S_OK()

  def getTargetToken( self ):
    """ target space token getter

    :param self: self reference
    """
    if not self.targetToken:
      return S_ERROR( "Target token not defined" )
    return S_OK( self.targetToken )

  def __checkTargetSE( self ):
    """ check target SE availability

    :param self: self reference
    """
    if not self.targetSE:
      return S_ERROR( "TargetSE not set" )
    res = self.oTargetSE.isValid( 'Write' )
    if not res['OK']:
      return S_ERROR( "TargetSE not available for writing" )
    res = self.__getSESpaceToken( self.oTargetSE )
    if not res['OK']:
      self.log.error( "FTSRequest failed to get SRM Space Token for TargetSE", res['Message'] )
      return S_ERROR( "TargetSE does not support FTS transfers" )

    # # check checksum types
    if self.__cksmTest:
      res = self.oTargetSE.getChecksumType()
      if not res["OK"]:
        self.log.error( "Unable to get checksum type for TargetSE %s: %s" % ( self.targetSE,
                                                                             res["Message"] ) )
        cksmType = res["Value"]
        if cksmType in ( "NONE", "NULL" ):
          self.log.warn( "Checksum type set to %s at TargetSE %s, disabling checksum test" % ( cksmType,
                                                                                              self.targetSE ) )
          self.__cksmTest = False
        elif cksmType != self.__cksmType:
          self.log.warn( "Checksum type mismatch, disabling checksum test" )
          self.__cksmTest = False

    self.targetToken = res['Value']
    self.targetValid = True
    return S_OK()

  @staticmethod
  def __getSESpaceToken( oSE ):
    """ get space token from StorageElement instance

    :param self: self reference
    :param StorageElement oSE: StorageElement instance
    """
    res = oSE.getStorageParameters( "SRM2" )
    if not res['OK']:
      return res
    return S_OK( res['Value'].get( 'SpaceToken' ) )

  ####################################################################
  #
  #  Methods for setting/getting FTS request parameters
  #

  def setFTSGUID( self, guid ):
    """ FTS job GUID setter

    :param self: self reference
    :param str guid: string containg GUID
    """
    if not checkGuid( guid ):
      return S_ERROR( "Incorrect GUID format" )
    self.ftsGUID = guid
    return S_OK()

  def getFTSGUID( self ):
    """ FTS job GUID getter

    :param self: self refenece
    """
    if not self.ftsGUID:
      return S_ERROR( "FTSGUID not set" )
    return S_OK( self.ftsGUID )

  def setFTSServer( self, server ):
    """ FTS server setter

    :param self: self reference
    :param str server: FTS server URL
    """
    self.ftsServer = server
    return S_OK()

  def getFTSServer( self ):
    """ FTS server getter

    :param self: self reference
    """
    if not self.ftsServer:
      return S_ERROR( "FTSServer not set" )
    return S_OK( self.ftsServer )

  def setPriority( self, priority ):
    """ set priority for FTS job

    :param self: self reference
    :param int priority: a new priority
    """
    if not type( priority ) in ( IntType, LongType ):
      return S_ERROR( "Priority must be integer" )
    if priority < 0:
      priority = 0
    elif priority > 5:
      priority = 5
    self.priority = priority
    return S_OK( self.priority )

  def getPriority( self ):
    """ FTS job priority getter

    :param self: self reference
    """
    return S_OK( self.priority )

  def getPercentageComplete( self ):
    """ get completness percentage

    :param self: self reference
    """
    completedFiles = 0
    totalFiles = 0
    for state in self.statusSummary:
      if state in self.successfulStates:
        completedFiles += self.statusSummary[state]
      totalFiles += self.statusSummary[state]
    self.percentageComplete = ( float( completedFiles ) * 100.0 ) / float( totalFiles )
    return S_OK( self.percentageComplete )

  def isRequestTerminal( self ):
    """ check if FTS job has terminated

    :param self: self reference
    """
    if self.requestStatus in self.finalStates:
      self.isTerminal = True
    return S_OK( self.isTerminal )

  def getStatus( self ):
    """ get FTS job status

    :param self: self reference
    """
    return S_OK( self.requestStatus )


  def setCksmType( self, cksm = None ):
    """ set checksum type to use

    :param self: self reference
    :param mixed cksm: checksum type, should be one of 'Adler32', 'md5', 'sha1', None
    """
    if str( cksm ).upper() not in ( "ADLER32", "MD5", "SHA1", "NONE" ):
      return S_ERROR( "Not supported checksum type: %s" % str( cksm ) )
    if not cksm:
      self.__cksmType = None
      return S_OK( False )
    self.__cksmType = str( cksm ).upper()
    return S_OK( True )

  def getCksmType( self ):
    """ get checksum type

    :param self: self reference
    """
    return S_OK( self.__cksmType )

  def setCksmTest( self, cksmTest = False ):
    """ set cksm test

    :param self: self reference
    :param bool cksmTest: flag to enable/disable checksum test
    """
    self.__cksmTest = bool( cksmTest )
    return S_OK( self.__cksmTest )

  def getCksmTest( self ):
    """ get cksm test flag

    :param self: self reference
    """
    return S_OK( self.__cksmTest )

  ####################################################################
  #
  #  Methods for setting/getting/checking files and their metadata
  #

  def setLFN( self, lfn ):
    """ add LFN :lfn: to :fileDict:

    :param self: self reference
    :param str lfn: LFN to add to
    """
    self.fileDict.setdefault( lfn, {'Status':'Waiting'} )
    return S_OK()

  def setStatus( self, lfn, status ):
    """ set status of a file """
    return( self.__setFileParameter( lfn, 'Status', status ) )

  def setSourceSURL( self, lfn, surl ):
    """ source SURL setter

    :param self: self reference
    :param str lfn: LFN
    :param str surl: source SURL
    """
    target = self.fileDict[lfn].get( 'Target' )
    if target == surl:
      return S_ERROR( "Source and target the same" )
    return( self.__setFileParameter( lfn, 'Source', surl ) )

  def getSourceSURL( self, lfn ):
    """ get source SURL for LFN :lfn:

    :param self: self reference
    :param str lfn: LFN
    """
    return self.__getFileParameter( lfn, 'Source' )

  def setTargetSURL( self, lfn, surl ):
    """ set target SURL for LFN :lfn:

    :param self: self reference
    :param str lfn: LFN
    :param str surl: target SURL
    """
    source = self.fileDict[lfn].get( 'Source' )
    if source == surl:
      return S_ERROR( "Source and target the same" )
    return( self.__setFileParameter( lfn, 'Target', surl ) )

  def getTargetSURL( self, lfn ):
    """ target SURL getter

    :param self: self reference
    :param str lfn: LFN
    """
    return self.__getFileParameter( lfn, 'Target' )

  def getFailReason( self, lfn ):
    """ get fail reason for file :lfn:

    :param self: self reference
    :param str lfn: LFN
    """
    return self.__getFileParameter( lfn, 'Reason' )

  def getRetries( self, lfn ):
    """ get number of attepmts made to transfer file :lfn:

    :param self: self reference
    :param str lfn: LFN
    """
    return self.__getFileParameter( lfn, 'Retries' )

  def getTransferTime( self, lfn ):
    """ get duration of transfer for file :lfn:

    :param self: self reference
    :param str lfn: LFN
    """
    return self.__getFileParameter( lfn, 'Duration' )

  def getFailed( self ):
    """ get list of wrongly transferred LFNs

    :param self: self reference
    """
    return S_OK( [ lfn for lfn in self.fileDict
                   if self.fileDict[lfn].get( 'Status', '' ) in self.failedStates ] )

  def getStaging( self ):
    """ get files set for prestaging """
    return S_OK( [lfn for lfn in self.fileDict
                  if self.fileDict[lfn].get( 'Status', '' ) == 'Staging'] )

  def getDone( self ):
    """ get list of succesfully transferred LFNs

    :param self: self reference
    """
    return S_OK( [ lfn for lfn in self.fileDict
                   if self.fileDict[lfn].get( 'Status', '' ) in self.successfulStates ] )

  def __setFileParameter( self, lfn, paramName, paramValue ):
    """ set :paramName: to :paramValue: for :lfn: file

    :param self: self reference
    :param str lfn: LFN
    :param str paramName: parameter name
    :param mixed paramValue: a new parameter value
    """
    self.setLFN( lfn )
    self.fileDict[lfn][paramName] = paramValue
    return S_OK()

  def __getFileParameter( self, lfn, paramName ):
    """ get value of :paramName: for file :lfn:

    :param self: self reference
    :param str lfn: LFN
    :param str paramName: parameter name
    """
    if lfn not in self.fileDict:
      return S_ERROR( "Supplied file not set" )
    if paramName not in self.fileDict[lfn]:
      return S_ERROR( "%s not set for file" % paramName )
    return S_OK( self.fileDict[lfn][paramName] )

  ####################################################################
  #
  #  Methods for submission
  #

  def submit( self, monitor = False, printOutput = True ):
    """ submit FTS job

    :param self: self reference
    :param bool monitor: flag to monitor progress of FTS job
    :param bool printOutput: flag to print output of execution to stdout
    """
    res = self.__isSubmissionValid()
    if not res['OK']:
      return res
    res = self.__createSURLPairFile()
    if not res['OK']:
      return res
    res = self.__submitFTSTransfer()
    if not res['OK']:
      return res
    resDict = { 'ftsGUID' : self.ftsGUID, 'ftsServer' : self.ftsServer, 'submittedFiles' : self.submittedFiles }
    # print "Submitted %s @ %s" % ( self.ftsGUID, self.ftsServer )
    if monitor:
      self.monitor( untilTerminal = True, printOutput = printOutput )
    return S_OK( resDict )

  def __isSubmissionValid( self ):
    """ check validity of job before submission

    :param self: self reference
    """
    if not self.fileDict:
      return S_ERROR( "No files set" )
    if not self.sourceValid:
      return S_ERROR( "SourceSE not valid" )
    if not self.targetValid:
      return S_ERROR( "TargetSE not valid" )
    if not self.ftsServer:
      res = self.__resolveFTSServer()
      if not res['OK']:
        return S_ERROR( "FTSServer not valid" )
    self.resolveSource()
    self.resolveTarget()
    res = self.__filesToSubmit()
    if not res['OK']:
      return S_ERROR( "No files to submit" )
    return S_OK()

  def __getCatalogObject( self ):
    """ CatalogInterface instance facade

    :param self: self reference
    """
    try:
      if not self.oCatalog:
        self.oCatalog = CatalogInterface()
      return S_OK()
    except:
      return S_ERROR()

  def __updateReplicaCache( self, lfns = None, overwrite = False ):
    """ update replica cache for list of :lfns:

    :param self: self reference
    :param mixed lfns: list of LFNs
    :param bool overwrite: flag to trigger cache clearing and updating
    """
    if not lfns:
      lfns = self.fileDict.keys()
    toUpdate = [ lfn for lfn in lfns if ( lfn not in self.catalogReplicas ) or overwrite ]
    if not toUpdate:
      return S_OK()
    res = self.__getCatalogObject()
    if not res['OK']:
      return res
    res = self.oCatalog.getCatalogReplicas( toUpdate )
    if not res['OK']:
      return S_ERROR( "Failed to update replica cache: %s" % res['Message'] )
    for lfn, error in res['Value']['Failed'].items():
      self.__setFileParameter( lfn, 'Reason', error )
      self.__setFileParameter( lfn, 'Status', 'Failed' )
    for lfn, replicas in res['Value']['Successful'].items():
      self.catalogReplicas[lfn] = replicas
    return S_OK()

  def __updateMetadataCache( self, lfns = None, overwrite = False ):
    """ update metadata cache for list of LFNs

    :param self: self reference
    :param list lnfs: list of LFNs
    :param bool overwrite: flag to trigger cache clearing and updating
    """
    if not lfns:
      lfns = self.fileDict.keys()
    toUpdate = [ lfn for lfn in lfns if ( lfn not in self.catalogMetadata ) or overwrite ]
    if not toUpdate:
      return S_OK()
    res = self.__getCatalogObject()
    if not res['OK']:
      return res
    res = self.oCatalog.getCatalogFileMetadata( toUpdate )
    if not res['OK']:
      return S_ERROR( "Failed to get source catalog metadata: %s" % res['Message'] )
    for lfn, error in res['Value']['Failed'].items():
      self.__setFileParameter( lfn, 'Reason', error )
      self.__setFileParameter( lfn, 'Status', 'Failed' )
    for lfn, metadata in res['Value']['Successful'].items():
      self.catalogMetadata[lfn] = metadata
    return S_OK()

  def resolveSource( self ):
    """ resolve source SE eligible for submission

    :param self: self reference
    """

    # Avoid resolving sources twice
    if self.sourceResolved:
      return S_OK()
    # Only resolve files that need a transfer
    toResolve = [ lfn for lfn in self.fileDict if self.fileDict[lfn].get( "Status", "" ) != "Failed" ]
    if not toResolve:
      return S_OK()
    res = self.__updateMetadataCache( toResolve )
    if not res['OK']:
      return res
    res = self.__updateReplicaCache( toResolve )
    if not res['OK']:
      return res

    # Define the source URLs
    for lfn in toResolve:
      replicas = self.catalogReplicas.get( lfn, {} )
      if self.sourceSE not in replicas:
        gLogger.warn( "resolveSource: skipping %s - not replicas at SourceSE %s" % ( lfn, self.sourceSE ) )
        self.__setFileParameter( lfn, 'Reason', "No replica at SourceSE" )
        self.__setFileParameter( lfn, 'Status', 'Failed' )
        continue
      res = self.oSourceSE.getPfnForProtocol( replicas[self.sourceSE], 'SRM2', withPort = True )
      if not res['OK']:
        gLogger.warn( "resolveSource: skipping %s - %s" % ( lfn, res["Message"] ) )
        self.__setFileParameter( lfn, 'Reason', res['Message'] )
        self.__setFileParameter( lfn, 'Status', 'Failed' )
        continue
      res = self.setSourceSURL( lfn, res['Value'] )
      if not res['OK']:
        gLogger.warn( "resolveSource: skipping %s - %s" % ( lfn, res["Message"] ) )
        self.__setFileParameter( lfn, 'Reason', res['Message'] )
        self.__setFileParameter( lfn, 'Status', 'Failed' )
        continue

    toResolve = {}
    for lfn in self.fileDict:
      if "Source" in self.fileDict[lfn]:
        toResolve[self.fileDict[lfn]['Source']] = lfn
    if not toResolve:
      return S_ERROR( "No eligible Source files" )

    # Get metadata of the sources, to check for existance, availability and caching
    res = self.oSourceSE.getFileMetadata( toResolve.keys() )
    if not res['OK']:
      return S_ERROR( "Failed to check source file metadata" )

    for pfn, error in res['Value']['Failed'].items():
      lfn = toResolve[pfn]
      if re.search( 'File does not exist', error ):
        gLogger.warn( "resolveSource: skipping %s - source file does not exists" % lfn )
        self.__setFileParameter( lfn, 'Reason', "Source file does not exist" )
        self.__setFileParameter( lfn, 'Status', 'Failed' )
      else:
        gLogger.warn( "resolveSource: skipping %s - failed to get source metadata" % lfn )
        self.__setFileParameter( lfn, 'Reason', "Failed to get Source metadata" )
        self.__setFileParameter( lfn, 'Status', 'Failed' )
    toStage = []

    nbStagedFiles = 0
    for pfn, metadata in res['Value']['Successful'].items():
      lfn = toResolve[pfn]
      lfnStatus = self.fileDict.get( lfn, {} ).get( 'Status' )
      if metadata['Unavailable']:
        gLogger.warn( "resolveSource: skipping %s - source file unavailable" % lfn )
        self.__setFileParameter( lfn, 'Reason', "Source file Unavailable" )
        self.__setFileParameter( lfn, 'Status', 'Failed' )
      elif metadata['Lost']:
        gLogger.warn( "resolveSource: skipping %s - source file lost" % lfn )
        self.__setFileParameter( lfn, 'Reason', "Source file Lost" )
        self.__setFileParameter( lfn, 'Status', 'Failed' )
      elif not metadata['Cached']:
        if lfnStatus != 'Staging':
          toStage.append( pfn )
      elif metadata['Size'] != self.catalogMetadata[lfn]['Size']:
        gLogger.warn( "resolveSource: skipping %s - source file size mismatch" % lfn )
        self.__setFileParameter( lfn, 'Reason', "Source size mismatch" )
        self.__setFileParameter( lfn, 'Status', 'Failed' )
      elif self.catalogMetadata[lfn]['Checksum'] and metadata['Checksum'] and \
            not ( compareAdler( metadata['Checksum'], self.catalogMetadata[lfn]['Checksum'] ) ):
        gLogger.warn( "resolveSource: skipping %s - source file checksum mismatch" % lfn )
        self.__setFileParameter( lfn, 'Reason', "Source checksum mismatch" )
        self.__setFileParameter( lfn, 'Status', 'Failed' )
      elif lfnStatus == 'Staging':
        # file that was staging is now cached
        self.__setFileParameter( lfn, 'Status', 'Waiting' )
        nbStagedFiles += 1

    # Some files were being staged
    if nbStagedFiles:
      self.log.info( 'resolveSource: %d files have been staged' % nbStagedFiles )

    # Launching staging of files not in cache
    if toStage:
      gLogger.warn( "resolveSource: %s source files not cached, prestaging..." % len( toStage ) )
      stage = self.replicaManager.prestageStorageFile( toStage, self.sourceSE )
      if not stage["OK"]:
        gLogger.error( "resolveSource: error is prestaging - %s" % stage["Message"] )
        for pfn in toStage:
          lfn = toResolve[pfn]
          self.__setFileParameter( lfn, 'Reason', stage["Message"] )
          self.__setFileParameter( lfn, 'Status', 'Failed' )
      else:
        for pfn in toStage:
          lfn = toResolve[pfn]
          if pfn in stage['Value']['Successful']:
            self.__setFileParameter( lfn, 'Status', 'Staging' )
          elif pfn in stage['Value']['Failed']:
            self.__setFileParameter( lfn, 'Reason', stage['Value']['Failed'][pfn] )
            self.__setFileParameter( lfn, 'Status', 'Failed' )

    self.sourceResolved = True
    return S_OK()

  def resolveTarget( self ):
    """ find target SE eligible for submission

    :param self: self reference
    """
    toResolve = [ lfn for lfn in self.fileDict
                 if self.fileDict[lfn].get( 'Status' ) not in self.noSubmitStatus ]
    if not toResolve:
      return S_OK()
    res = self.__updateReplicaCache( toResolve )
    if not res['OK']:
      return res
    for lfn in toResolve:
      res = self.oTargetSE.getPfnForLfn( lfn )
      if not res['OK']:
        gLogger.warn( "resolveTarget: skipping %s - failed to create target pfn" % lfn )
        self.__setFileParameter( lfn, 'Reason', "Failed to create Target" )
        self.__setFileParameter( lfn, 'Status', 'Failed' )
        continue
      res = self.oTargetSE.getPfnForProtocol( res['Value'], 'SRM2', withPort = True )
      if not res['OK']:
        gLogger.warn( "resolveTarget: skipping %s - %s" % ( lfn, res["Message"] ) )
        self.__setFileParameter( lfn, 'Reason', res['Message'] )
        self.__setFileParameter( lfn, 'Status', 'Failed' )
        continue
      res = self.setTargetSURL( lfn, res['Value'] )
      if not res['OK']:
        gLogger.warn( "resolveTarget: skipping %s - %s" % ( lfn, res["Message"] ) )
        self.__setFileParameter( lfn, 'Reason', res['Message'] )
        self.__setFileParameter( lfn, 'Status', 'Failed' )
        continue
    toResolve = {}
    for lfn in self.fileDict:
      if "Target" in self.fileDict[lfn]:
        toResolve[self.fileDict[lfn]['Target']] = lfn
    if not toResolve:
      return S_ERROR( "No eligible Target files" )
    res = self.oTargetSE.exists( toResolve.keys() )
    if not res['OK']:
      return S_ERROR( "Failed to check target existence" )
    for pfn, error in res['Value']['Failed'].items():
      lfn = toResolve[pfn]
      self.__setFileParameter( lfn, 'Reason', error )
      self.__setFileParameter( lfn, 'Status', 'Failed' )
    toRemove = []
    for pfn, exists in res['Value']['Successful'].items():
      if exists:
        lfn = toResolve[pfn]
        res = self.getSourceSURL( lfn )
        if not res['OK']:
          gLogger.warn( "resolveTarget: skipping %s - target exists" % lfn )
          self.__setFileParameter( lfn, 'Reason', "Target exists" )
          self.__setFileParameter( lfn, 'Status', 'Failed' )
        elif res['Value'] == pfn:
          gLogger.warn( "resolveTarget: skipping %s - source and target pfns are the same" % lfn )
          self.__setFileParameter( lfn, 'Reason', "Source and Target the same" )
          self.__setFileParameter( lfn, 'Status', 'Failed' )
        else:
          toRemove.append( pfn )
    if toRemove:
      self.oTargetSE.removeFile( toRemove )
    return S_OK()

  def __filesToSubmit( self ):
    """
    check if there is at least one file to submit

    :return: S_OK if at least one file is present, S_ERROR otherwise
    """
    for lfn in self.fileDict:
      lfnStatus = self.fileDict[lfn].get( 'Status' )
      source = self.fileDict[lfn].get( 'Source' )
      target = self.fileDict[lfn].get( 'Target' )
      if lfnStatus not in self.noSubmitStatus and source and target:
        return S_OK()
    return S_ERROR()

  def __createSURLPairFile( self ):
    """ create LFNs file for glite-transfer-submit command

    This file consists one line for each fiel to be transferred:

    sourceSURL targetSURL [CHECKSUMTYPE:CHECKSUM]

    :param self: self reference
    """
    fd, fileName = tempfile.mkstemp()
    surlFile = os.fdopen( fd, 'w' )
    for lfn in self.fileDict:
      lfnStatus = self.fileDict[lfn].get( 'Status' )
      source = self.fileDict[lfn].get( 'Source' )
      target = self.fileDict[lfn].get( 'Target' )
      if lfnStatus not in self.noSubmitStatus and source and target:
        cksmStr = ""
        # # add chsmType:cksm only if cksmType is specified, else let FTS decide by itself
        if self.__cksmTest and self.__cksmType:
          checkSum = self.catalogMetadata.get( lfn, {} ).get( 'Checksum' )
          if checkSum:
            cksmStr = " %s:%s" % ( self.__cksmType, intAdlerToHex( hexAdlerToInt( checkSum ) ) )
        surlFile.write( "%s %s%s\n" % ( source, target, cksmStr ) )
        self.submittedFiles += 1
    surlFile.close()
    self.surlFile = fileName
    return S_OK()

  def __submitFTSTransfer( self ):
    """ create and execute glite-transfer-submit CLI command

    :param self: self reference
    """
    comm = [ 'glite-transfer-submit', '-s', self.ftsServer, '-f', self.surlFile, '-o' ]
    if self.targetToken:
      comm += [ '-t', self.targetToken ]
    if self.sourceToken:
      comm += [ '-S', self.sourceToken ]
    if self.__cksmTest:
      comm.append( "--compare-checksums" )
    gLogger.verbose( 'Executing %s' % ' '.join( comm ) )
    res = executeGridCommand( '', comm )
    os.remove( self.surlFile )
    if not res['OK']:
      return res
    returnCode, output, errStr = res['Value']
    if not returnCode == 0:
      return S_ERROR( errStr )
    guid = output.replace( '\n', '' )
    if not checkGuid( guid ):
      return S_ERROR( 'Wrong GUID format returned' )
    self.ftsGUID = guid
    # if self.priority != 3:
    #  comm = ['glite-transfer-setpriority','-s', self.ftsServer,self.ftsGUID,str(self.priority)]
    #  executeGridCommand('',comm)
    return res

  def __getFTSServer( self, site ):
    try:
      configPath = '/Resources/FTSEndpoints/%s' % site
      endpointURL = gConfig.getValue( configPath )
      if not endpointURL:
        errStr = "FTSRequest.__getFTSServer: Failed to find FTS endpoint, check CS entry for '%s'." % site
        return S_ERROR( errStr )
      return S_OK( endpointURL )
    except Exception, x:
      return S_ERROR( 'FTSRequest.__getFTSServer: Failed to obtain endpoint details from CS' )
コード例 #6
0
ファイル: FTSRequest.py プロジェクト: caitriana/DIRAC
class FTSRequest:

  def __init__( self ):

    self.gridEnv = '/afs/cern.ch/project/gd/LCG-share/3.2.8-0/etc/profile.d/grid-env'

    self.finalStates = ['Canceled', 'Failed', 'Hold', 'Finished', 'FinishedDirty']
    self.failedStates = ['Canceled', 'Failed', 'Hold', 'FinishedDirty']
    self.successfulStates = ['Finished', 'Done']
    self.fileStates = ['Done', 'Active', 'Pending', 'Ready', 'Canceled', 'Failed', 'Finishing', 'Finished', 'Submitted', 'Hold', 'Waiting']

    self.newlyCompletedFiles = []
    self.newlyFailedFiles = []

    self.statusSummary = {}
    self.requestStatus = 'Unknown'

    self.fileDict = {}
    self.catalogReplicas = {}
    self.catalogMetadata = {}

    self.oCatalog = None

    self.submitTime = ''

    self.ftsGUID = ''
    self.ftsServer = ''
    self.priority = 3
    self.isTerminal = False
    self.percentageComplete = 0.0

    self.sourceSE = ''
    self.sourceValid = False
    self.sourceToken = ''

    self.targetSE = ''
    self.targetValid = False
    self.targetToken = ''

    self.dumpStr = ''

  ####################################################################
  #
  #  Methods for setting/getting/checking the SEs
  #

  def setSourceSE( self, se ):
    if se == self.targetSE:
      return S_ERROR( "SourceSE is TargetSE" )
    self.sourceSE = se
    self.oSourceSE = StorageElement( self.sourceSE )
    return self.__checkSourceSE()

  def getSourceSE( self ):
    if not self.sourceSE:
      return S_ERROR( "Source SE not defined" )
    return S_OK( self.sourceSE )

  def setSourceToken( self, token ):
    self.sourceToken = token
    return S_OK()

  def getSourceToken( self ):
    if not self.sourceToken:
      return S_ERROR( "Source token not defined" )
    return S_OK( self.sourceToken )

  def __checkSourceSE( self ):
    if not self.sourceSE:
      return S_ERROR( "SourceSE not set" )
    res = self.oSourceSE.isValid( 'Read' )
    if not res['OK']:
      return S_ERROR( "SourceSE not available for reading" )
    res = self.__getSESpaceToken( self.oSourceSE )
    if not res['OK']:
      gLogger.error( "FTSRequest failed to get SRM Space Token for SourceSE", res['Message'] )
      return S_ERROR( "SourceSE does not support FTS transfers" )
    self.sourceToken = res['Value']
    self.sourceValid = True
    return S_OK()

  def setTargetSE( self, se ):
    if se == self.sourceSE:
      return S_ERROR( "TargetSE is SourceSE" )
    self.targetSE = se
    self.oTargetSE = StorageElement( self.targetSE )
    return self.__checkTargetSE()

  def getTargetSE( self ):
    if not self.targetSE:
      return S_ERROR( "Target SE not defined" )
    return S_OK( self.targetSE )

  def setTargetToken( self, token ):
    self.targetToken = token
    return S_OK()

  def getTargetToken( self ):
    if not self.targetToken:
      return S_ERROR( "Target token not defined" )
    return S_OK( self.targetToken )

  def __checkTargetSE( self ):
    if not self.targetSE:
      return S_ERROR( "TargetSE not set" )
    res = self.oTargetSE.isValid( 'Write' )
    if not res['OK']:
      return S_ERROR( "TargetSE not available for writing" )
    res = self.__getSESpaceToken( self.oTargetSE )
    if not res['OK']:
      gLogger.error( "FTSRequest failed to get SRM Space Token for TargetSE", res['Message'] )
      return S_ERROR( "SourceSE does not support FTS transfers" )
    self.targetToken = res['Value']
    self.targetValid = True
    return S_OK()

  def __getSESpaceToken( self, oSE ):
    res = oSE.getStorageParameters( "SRM2" )
    if not res['OK']:
      return res
    return S_OK( res['Value'].get( 'SpaceToken' ) )

  ####################################################################
  #
  #  Methods for setting/getting FTS request parameters
  #

  def setFTSGUID( self, guid ):
    if not checkGuid( guid ):
      return S_ERROR( "Incorrect GUID format" )
    self.ftsGUID = guid
    return S_OK()

  def getFTSGUID( self ):
    if not self.ftsGUID:
      return S_ERROR( "FTSGUID not set" )
    return S_OK( self.ftsGUID )

  def setFTSServer( self, server ):
    self.ftsServer = server
    return S_OK()

  def getFTSServer( self ):
    if not self.ftsServer:
      return S_ERROR( "FTSServer not set" )
    return S_OK( self.ftsServer )

  def setPriority( self, priority ):
    if not type( priority ) in [types.IntType, types.LongType]:
      return S_ERROR( "Priority must be integer" )
    if priority < 0:
      priority = 0
    elif priority > 5:
      priority = 5
    self.priority = priority
    return S_OK( self.priority )

  def getPriority( self ):
    return S_OK( self.priority )

  def getPercentageComplete( self ):
    completedFiles = 0
    totalFiles = 0
    for state in ( self.statusSummary.keys() ):
      if state in self.successfulStates:
        completedFiles += self.statusSummary[state]
      totalFiles += self.statusSummary[state]
    self.percentageComplete = ( float( completedFiles ) * 100.0 ) / float( totalFiles )
    return S_OK( self.percentageComplete )

  def isRequestTerminal( self ):
    if self.requestStatus in self.finalStates:
      self.isTerminal = True
    return S_OK( self.isTerminal )

  def getStatus( self ):
    return S_OK( self.requestStatus )

  ####################################################################
  #
  #  Methods for setting/getting/checking files and their metadata
  #

  def setLFN( self, lfn ):
    if not self.fileDict.has_key( lfn ):
      self.fileDict[lfn] = {}
    return S_OK()

  def setSourceSURL( self, lfn, surl ):
    target = self.fileDict[lfn].get( 'Target' )
    if target == surl:
      return S_ERROR( "Source and target the same" )
    self.__setFileParameter( lfn, 'Source', surl )
    return S_OK()

  def getSourceSURL( self, lfn ):
    return self.__getFileParameter( lfn, 'Source' )

  def setTargetSURL( self, lfn, surl ):
    source = self.fileDict[lfn].get( 'Source' )
    if source == surl:
      return S_ERROR( "Source and target the same" )
    self.__setFileParameter( lfn, 'Target', surl )
    return S_OK()

  def getTargetSURL( self, lfn ):
    return self.__getFileParameter( lfn, 'Target' )

  def getFailReason( self, lfn ):
    return self.__getFileParameter( lfn, 'Reason' )

  def getRetries( self, lfn ):
    return self.__getFileParameter( lfn, 'Retries' )

  def getTransferTime( self, lfn ):
    return self.__getFileParameter( lfn, 'Duration' )

  def getFailed( self ):
    failed = []
    for lfn in self.fileDict.keys():
      status = self.fileDict[lfn].get( 'Status', '' )
      if status in self.failedStates:
        failed.append( lfn )
    return S_OK( failed )

  def getDone( self ):
    done = []
    for lfn in self.fileDict.keys():
      status = self.fileDict[lfn].get( 'Status', '' )
      if status in self.successfulStates:
        done.append( lfn )
    return S_OK( done )

  def __setFileParameter( self, lfn, paramName, paramValue ):
    self.setLFN( lfn )
    self.fileDict[lfn][paramName] = paramValue
    return S_OK()

  def __getFileParameter( self, lfn, paramName ):
    if not self.fileDict.has_key( lfn ):
      return S_ERROR( "Supplied file not set" )
    if not self.fileDict[lfn].has_key( paramName ):
      return S_ERROR( "%s not set for file" % paramName )
    return S_OK( self.fileDict[lfn][paramName] )

  ####################################################################
  #
  #  Methods for submission
  #

  def submit( self, monitor = False, printOutput = True ):
    res = self.__isSubmissionValid()
    if not res['OK']:
      return res
    res = self.__createSURLPairFile()
    if not res['OK']:
      return res
    res = self.__submitFTSTransfer()
    if not res['OK']:
      return res
    resDict = {'ftsGUID':self.ftsGUID, 'ftsServer':self.ftsServer}
    print "Submitted %s @ %s" % ( self.ftsGUID, self.ftsServer )
    if monitor:
      self.monitor( untilTerminal = True, printOutput = printOutput )
    return S_OK( resDict )

  def __isSubmissionValid( self ):
    if not self.fileDict:
      return S_ERROR( "No files set" )
    if not self.sourceValid:
      return S_ERROR( "SourceSE not valid" )
    if not self.targetValid:
      return S_ERROR( "TargetSE not valid" )
    if not self.ftsServer:
      res = self.__resolveFTSServer()
      if not res['OK']:
        return S_ERROR( "FTSServer not valid" )
    self.__resolveSource()
    self.__resolveTarget()
    res = self.__filesToSubmit()
    if not res['OK']:
      return S_ERROR( "No files to submit" )
    return S_OK()

  def __getCatalogObject( self ):
    try:
      if not self.oCatalog:
        self.oCatalog = CatalogInterface()
      return S_OK()
    except:
      return S_ERROR()

  def __updateReplicaCache( self, lfns = [], overwrite = False ):
    if not lfns:
      lfns = self.fileDict.keys()
    toUpdate = []
    for lfn in lfns:
      if ( not lfn in self.catalogReplicas.keys() ) or overwrite:
        toUpdate.append( lfn )
    if not toUpdate:
      return S_OK()
    res = self.__getCatalogObject()
    if not res['OK']:
      return res
    res = self.oCatalog.getCatalogReplicas( toUpdate )
    if not res['OK']:
      return S_ERROR( "Failed to update replica cache", res['Message'] )
    for lfn, error in res['Value']['Failed'].items():
      self.__setFileParameter( lfn, 'Reason', error )
      self.__setFileParameter( lfn, 'Status', 'Failed' )
    for lfn, replicas in res['Value']['Successful'].items():
      self.catalogReplicas[lfn] = replicas
    return S_OK()

  def __updateMetadataCache( self, lfns = [], overwrite = False ):
    if not lfns:
      lfns = self.fileDict.keys()
    toUpdate = []
    for lfn in lfns:
      if ( not lfn in self.catalogMetadata.keys() ) or overwrite:
        toUpdate.append( lfn )
    if not toUpdate:
      return S_OK()
    res = self.__getCatalogObject()
    if not res['OK']:
      return res
    res = self.oCatalog.getCatalogFileMetadata( toUpdate )
    if not res['OK']:
      return S_ERROR( "Failed to get source catalog metadata", res['Message'] )
    for lfn, error in res['Value']['Failed'].items():
      self.__setFileParameter( lfn, 'Reason', error )
      self.__setFileParameter( lfn, 'Status', 'Failed' )
    for lfn, metadata in res['Value']['Successful'].items():
      self.catalogMetadata[lfn] = metadata
    return S_OK()

  def __resolveSource( self ):
    toResolve = []
    for lfn in self.fileDict.keys():
      if ( not self.fileDict[lfn].has_key( 'Source' ) ) and ( self.fileDict[lfn].get( 'Status' ) != 'Failed' ):
        toResolve.append( lfn )
    if not toResolve:
      return S_OK()
    res = self.__updateMetadataCache( toResolve )
    if not res['OK']:
      return res
    res = self.__updateReplicaCache( toResolve )
    if not res['OK']:
      return res
    for lfn in toResolve:
      if self.fileDict[lfn].get( 'Status' ) == 'Failed':
        continue
      replicas = self.catalogReplicas.get( lfn, {} )
      if not replicas.has_key( self.sourceSE ):
        self.__setFileParameter( lfn, 'Reason', "No replica at SourceSE" )
        self.__setFileParameter( lfn, 'Status', 'Failed' )
        continue
      res = self.oSourceSE.getPfnForProtocol( replicas[self.sourceSE], 'SRM2', withPort = True )
      if not res['OK']:
        self.__setFileParameter( lfn, 'Reason', res['Message'] )
        self.__setFileParameter( lfn, 'Status', 'Failed' )
        continue
      res = self.setSourceSURL( lfn, res['Value'] )
      if not res['OK']:
        self.__setFileParameter( lfn, 'Reason', res['Message'] )
        self.__setFileParameter( lfn, 'Status', 'Failed' )
        continue

    toResolve = {}
    for lfn in self.fileDict.keys():
      if self.fileDict[lfn].has_key( 'Source' ):
        toResolve[self.fileDict[lfn]['Source']] = lfn
    if not toResolve:
      return S_ERROR( "No eligible Source files" )
    res = self.oSourceSE.getFileMetadata( toResolve.keys() )
    if not res['OK']:
      return S_ERROR( "Failed to check source file metadata" )
    for pfn, error in res['Value']['Failed'].items():
      lfn = toResolve[pfn]
      if re.search( 'File does not exist', error ):
        self.__setFileParameter( lfn, 'Reason', "Source file does not exist" )
        self.__setFileParameter( lfn, 'Status', 'Failed' )
      else:
        self.__setFileParameter( lfn, 'Reason', "Failed to get Source metadata" )
        self.__setFileParameter( lfn, 'Status', 'Failed' )
    for pfn, metadata in res['Value']['Successful'].items():
      lfn = toResolve[pfn]
      if metadata['Unavailable']:
        self.__setFileParameter( lfn, 'Reason', "Source file Unavailable" )
        self.__setFileParameter( lfn, 'Status', 'Failed' )
      elif metadata['Lost']:
        self.__setFileParameter( lfn, 'Reason', "Source file Lost" )
        self.__setFileParameter( lfn, 'Status', 'Failed' )
      elif not metadata['Cached']:
        self.__setFileParameter( lfn, 'Reason', "Source file not Cached" )
        self.__setFileParameter( lfn, 'Status', 'Failed' )
      elif metadata['Size'] != self.catalogMetadata[lfn]['Size']:
        self.__setFileParameter( lfn, 'Reason', "Source size mismatch" )
        self.__setFileParameter( lfn, 'Status', 'Failed' )
      elif self.catalogMetadata[lfn]['Checksum'] and metadata['Checksum'] and not ( compareAdler( metadata['Checksum'], self.catalogMetadata[lfn]['Checksum'] ) ):
        self.__setFileParameter( lfn, 'Reason', "Source checksum mismatch" )
        self.__setFileParameter( lfn, 'Status', 'Failed' )
    return S_OK()

  def __resolveTarget( self ):
    toResolve = []
    for lfn in self.fileDict.keys():
      if not self.fileDict[lfn].has_key( 'Target' ) and ( self.fileDict[lfn].get( 'Status' ) != 'Failed' ):
        toResolve.append( lfn )
    if not toResolve:
      return S_OK()
    res = self.__updateReplicaCache( toResolve )
    if not res['OK']:
      return res
    atTarget = []
    for lfn in sortList( toResolve ):
      if self.fileDict[lfn].get( 'Status' ) == 'Failed':
        continue
      replicas = self.catalogReplicas.get( lfn, {} )
      if replicas.has_key( self.targetSE ):
        self.__setFileParameter( lfn, 'Reason', "File already at Target" )
        self.__setFileParameter( lfn, 'Status', 'Done' )
        atTarget.append( lfn )
    for lfn in toResolve:
      if ( self.fileDict[lfn].get( 'Status' ) == 'Failed' ) or ( lfn in atTarget ):
        continue
      res = self.oTargetSE.getPfnForLfn( lfn )
      if not res['OK']:
        self.__setFileParameter( lfn, 'Reason', "Failed to create Target" )
        self.__setFileParameter( lfn, 'Status', 'Failed' )
        continue
      res = self.oTargetSE.getPfnForProtocol( res['Value'], 'SRM2', withPort = True )
      if not res['OK']:
        self.__setFileParameter( lfn, 'Reason', res['Message'] )
        self.__setFileParameter( lfn, 'Status', 'Failed' )
        continue
      res = self.setTargetSURL( lfn, res['Value'] )
      if not res['OK']:
        self.__setFileParameter( lfn, 'Reason', res['Message'] )
        self.__setFileParameter( lfn, 'Status', 'Failed' )
        continue
    toResolve = {}
    for lfn in self.fileDict.keys():
      if self.fileDict[lfn].has_key( 'Target' ):
        toResolve[self.fileDict[lfn]['Target']] = lfn
    if not toResolve:
      return S_ERROR( "No eligible Target files" )
    res = self.oTargetSE.exists( toResolve.keys() )
    if not res['OK']:
      return S_ERROR( "Failed to check target existence" )
    for pfn, error in res['Value']['Failed'].items():
      lfn = toResolve[pfn]
      self.__setFileParameter( lfn, 'Reason', error )
      self.__setFileParameter( lfn, 'Status', 'Failed' )
    toRemove = []
    for pfn, exists in res['Value']['Successful'].items():
      if exists:
        lfn = toResolve[pfn]
        res = self.getSourceSURL( lfn )
        if not res['OK']:
          self.__setFileParameter( lfn, 'Reason', "Target exists" )
          self.__setFileParameter( lfn, 'Status', 'Failed' )
        elif res['Value'] == pfn:
          self.__setFileParameter( lfn, 'Reason', "Source and Target the same" )
          self.__setFileParameter( lfn, 'Status', 'Failed' )
        else:
          toRemove.append( pfn )
    if toRemove:
      self.oTargetSE.removeFile( toRemove )
    return S_OK()

  def __filesToSubmit( self ):
    for lfn in self.fileDict.keys():
      lfnStatus = self.fileDict[lfn].get( 'Status' )
      source = self.fileDict[lfn].get( 'Source' )
      target = self.fileDict[lfn].get( 'Target' )
      if ( lfnStatus != 'Failed' ) and ( lfnStatus != 'Done' ) and source and target:
        return S_OK()
    return S_ERROR()

  def __createSURLPairFile( self ):
    fd, fileName = tempfile.mkstemp()
    surlFile = os.fdopen( fd, 'w' )
    for lfn in self.fileDict.keys():
      lfnStatus = self.fileDict[lfn].get( 'Status' )
      source = self.fileDict[lfn].get( 'Source' )
      target = self.fileDict[lfn].get( 'Target' )
      if ( lfnStatus != 'Failed' ) and ( lfnStatus != 'Done' ) and source and target:
        surlString = '%s %s\n' % ( source, target )
        surlFile.write( surlString )
    surlFile.close()
    self.surlFile = fileName
    return S_OK()

  def __submitFTSTransfer( self ):
    comm = ['glite-transfer-submit', '-s', self.ftsServer, '-f', self.surlFile, '-o']
    if self.targetToken:
      comm.append( '-t' )
      comm.append( self.targetToken )
    if self.sourceToken:
      comm.append( '-S' )
      comm.append( self.sourceToken )
    res = executeGridCommand( '', comm, self.gridEnv )
    os.remove( self.surlFile )
    if not res['OK']:
      return res
    returnCode, output, errStr = res['Value']
    if not returnCode == 0:
      return S_ERROR( errStr )
    guid = output.replace( '\n', '' )
    if not checkGuid( guid ):
      return S_ERROR( 'Wrong GUID format returned' )
    self.ftsGUID = guid
    #if self.priority != 3:
    #  comm = ['glite-transfer-setpriority','-s', self.ftsServer,self.ftsGUID,str(self.priority)]
    #  executeGridCommand('',comm,self.gridEnv)
    return res

  def __resolveFTSServer( self ):
    if not self.sourceSE:
      return S_ERROR( "Source SE not set" )
    if not self.targetSE:
      return S_ERROR( "Target SE not set" )
    res = getSitesForSE( self.sourceSE, 'LCG' )
    if not res['OK'] or not res['Value']:
      return S_ERROR( "Could not determine source site" )
    sourceSite = res['Value'][0]
    res = getSitesForSE( self.targetSE, 'LCG' )
    if not res['OK'] or not res['Value']:
      return S_ERROR( "Could not determine target site" )
    targetSite = res['Value'][0]

    if ( sourceSite == 'LCG.CERN.ch' ) or ( targetSite == 'LCG.CERN.ch' ):
      ep = 'LCG.CERN.ch'
    else:
      # Target site FTS server should be used
      ep = targetSite

    try:
      configPath = '/Resources/FTSEndpoints/%s' % ep
      endpointURL = gConfig.getValue( configPath )
      if not endpointURL:
        errStr = "FTSRequest.__resolveFTSEndpoint: Failed to find FTS endpoint, check CS entry for '%s'." % ep
        return S_ERROR( errStr )
      self.ftsServer = endpointURL
      return S_OK( endpointURL )
    except Exception, x:
      return S_ERROR( 'FTSRequest.__resolveFTSEndpoint: Failed to obtain endpoint details from CS' )
コード例 #7
0
########################################################################
__RCSID__   = "02424f4 (2012-03-21 17:26:24 +0100) Andrei Tsaregorodtsev <*****@*****.**>"

from DIRAC.Core.Base import Script 

Script.setUsageMessage("""
Change status of replica of a given file or a list of files at a given Storage Element 

Usage:
   %s <lfn | fileContainingLfns> <SE> <status>
""" % Script.scriptName)

Script.parseCommandLine()

from DIRAC.DataManagementSystem.Client.ReplicaManager import CatalogInterface
catalog = CatalogInterface()
import sys,os

if not len(sys.argv) == 4:
  Script.showHelp()
  DIRAC.exit( -1 )
else:
  inputFileName = sys.argv[1]
  se = sys.argv[2]
  newStatus = sys.argv[3]

if os.path.exists(inputFileName):
  inputFile = open(inputFileName,'r')
  string = inputFile.read()
  lfns = string.splitlines()
  inputFile.close()
コード例 #8
0
from DIRAC import exit as DIRACExit
from DIRAC.Core.Base import Script

Script.setUsageMessage("""
Change status of replica of a given file or a list of files at a given Storage Element 

Usage:
   %s <lfn | fileContainingLfns> <SE> <status>
""" % Script.scriptName)

Script.parseCommandLine()

from DIRAC.DataManagementSystem.Client.ReplicaManager import CatalogInterface

catalog = CatalogInterface()
import sys, os

if not len(sys.argv) == 4:
    Script.showHelp()
    DIRACExit(-1)
else:
    inputFileName = sys.argv[1]
    se = sys.argv[2]
    newStatus = sys.argv[3]

if os.path.exists(inputFileName):
    inputFile = open(inputFileName, 'r')
    string = inputFile.read()
    lfns = string.splitlines()
    inputFile.close()
コード例 #9
0
class FTSRequest(object):
    """
  .. class:: FTSRequest
  
  Helper class for FTS job submission and monitoring.
  """

    ## default checksum type
    __defaultCksmType = "ADLER32"
    ## flag to disablr/enable checksum test, default: disabled
    __cksmTest = False

    def __init__(self):
        """c'tor

    :param self: self reference
    """
        self.log = gLogger.getSubLogger(self.__class__.__name__, True)

        ## final states tuple
        self.finalStates = ('Canceled', 'Failed', 'Hold', 'Finished',
                            'FinishedDirty')
        ## failed states tuple
        self.failedStates = ('Canceled', 'Failed', 'Hold', 'FinishedDirty')
        ## successful states tuple
        self.successfulStates = ('Finished', 'Done')
        ## all file states tuple
        self.fileStates = ('Done', 'Active', 'Pending', 'Ready', 'Canceled',
                           'Failed', 'Finishing', 'Finished', 'Submitted',
                           'Hold', 'Waiting')

        self.newlyCompletedFiles = []
        self.newlyFailedFiles = []

        self.statusSummary = {}

        ## request status
        self.requestStatus = 'Unknown'

        ## dict for FTS job files
        self.fileDict = {}
        ## dict for replicas information
        self.catalogReplicas = {}
        ## dict for metadata information
        self.catalogMetadata = {}
        ## dict for files that failed to register
        self.failedRegistrations = {}

        ## placehoder for CatalogInterface reference
        self.oCatalog = None

        ## submit timestamp
        self.submitTime = ''

        ## placeholder FTS job GUID
        self.ftsGUID = ''
        ## placeholder for FTS server URL
        self.ftsServer = ''
        ## not used
        self.priority = 3

        ## flag marking FTS job completness
        self.isTerminal = False
        ## completness percentage
        self.percentageComplete = 0.0

        ## source SE name
        self.sourceSE = ''
        ## flag marking source SE validity
        self.sourceValid = False
        ## source space token
        self.sourceToken = ''

        ## target SE name
        self.targetSE = ''
        ## flag marking target SE validity
        self.targetValid = False
        ## target space token
        self.targetToken = ''

        ## whatever
        self.dumpStr = ''

        ## placeholder for surl file
        self.surlFile = None

        ## placeholder for target StorageElement
        self.oTargetSE = None
        ## placeholder for source StorageElement
        self.oSourceSE = None

        ## checksum type, set it to default
        self.__cksmType = self.__defaultCksmType
        ## disable checksum test by default
        self.__cksmTest = False

        ## replica manager handler
        self.replicaManager = ReplicaManager()

    ####################################################################
    #
    #  Methods for setting/getting/checking the SEs
    #

    def setSourceSE(self, se):
        """ set SE for source 

    :param self: self reference
    :param str se: source SE name
    """
        if se == self.targetSE:
            return S_ERROR("SourceSE is TargetSE")
        self.sourceSE = se
        self.oSourceSE = StorageElement(self.sourceSE)
        return self.__checkSourceSE()

    def getSourceSE(self):
        """ source SE getter

    :param self: self reference
    """
        if not self.sourceSE:
            return S_ERROR("Source SE not defined")
        return S_OK(self.sourceSE)

    def setSourceToken(self, token):
        """ set source space token

    :param self: self reference
    :param str token: source space token
    """
        self.sourceToken = token
        return S_OK()

    def getSourceToken(self):
        """ source space token getter

    :param self: self reference
    """
        if not self.sourceToken:
            return S_ERROR("Source token not defined")
        return S_OK(self.sourceToken)

    def __checkSourceSE(self):
        """ check source SE availability

    :param self: self reference
    """
        if not self.sourceSE:
            return S_ERROR("SourceSE not set")
        res = self.oSourceSE.isValid('Read')
        if not res['OK']:
            return S_ERROR("SourceSE not available for reading")
        res = self.__getSESpaceToken(self.oSourceSE)
        if not res['OK']:
            self.log.error(
                "FTSRequest failed to get SRM Space Token for SourceSE",
                res['Message'])
            return S_ERROR("SourceSE does not support FTS transfers")

        if self.__cksmTest:
            res = self.oSourceSE.getChecksumType()
            if not res["OK"]:
                self.log.error(
                    "Unable to get checksum type for SourceSE %s: %s" %
                    (self.sourceSE, res["Message"]))
                cksmType = res["Value"]
                if cksmType in ("NONE", "NULL"):
                    self.log.warn(
                        "Checksum type set to %s at SourceSE %s, disabling checksum test"
                        % (cksmType, self.sourceSE))
                    self.__cksmTest = False
                elif cksmType != self.__cksmType:
                    self.log.warn(
                        "Checksum type mismatch, disabling checksum test")
                    self.__cksmTest = False

        self.sourceToken = res['Value']
        self.sourceValid = True
        return S_OK()

    def setTargetSE(self, se):
        """ set target SE
    
    :param self: self reference
    :param str se: target SE name
    """
        if se == self.sourceSE:
            return S_ERROR("TargetSE is SourceSE")
        self.targetSE = se
        self.oTargetSE = StorageElement(self.targetSE)
        return self.__checkTargetSE()

    def getTargetSE(self):
        """ target SE getter

    :param self: self reference
    """
        if not self.targetSE:
            return S_ERROR("Target SE not defined")
        return S_OK(self.targetSE)

    def setTargetToken(self, token):
        """ target space token setter
    
    :param self: self reference
    :param str token: target space token
    """
        self.targetToken = token
        return S_OK()

    def getTargetToken(self):
        """ target space token getter

    :param self: self reference
    """
        if not self.targetToken:
            return S_ERROR("Target token not defined")
        return S_OK(self.targetToken)

    def __checkTargetSE(self):
        """ check target SE availability 

    :param self: self reference
    """
        if not self.targetSE:
            return S_ERROR("TargetSE not set")
        res = self.oTargetSE.isValid('Write')
        if not res['OK']:
            return S_ERROR("TargetSE not available for writing")
        res = self.__getSESpaceToken(self.oTargetSE)
        if not res['OK']:
            self.log.error(
                "FTSRequest failed to get SRM Space Token for TargetSE",
                res['Message'])
            return S_ERROR("TargetSE does not support FTS transfers")

        ## check checksum types
        if self.__cksmTest:
            res = self.oTargetSE.getChecksumType()
            if not res["OK"]:
                self.log.error(
                    "Unable to get checksum type for TargetSE %s: %s" %
                    (self.targetSE, res["Message"]))
                cksmType = res["Value"]
                if cksmType in ("NONE", "NULL"):
                    self.log.warn(
                        "Checksum type set to %s at TargetSE %s, disabling checksum test"
                        % (cksmType, self.targetSE))
                    self.__cksmTest = False
                elif cksmType != self.__cksmType:
                    self.log.warn(
                        "Checksum type mismatch, disabling checksum test")
                    self.__cksmTest = False

        self.targetToken = res['Value']
        self.targetValid = True
        return S_OK()

    @staticmethod
    def __getSESpaceToken(oSE):
        """ get space token from StorageElement instance

    :param self: self reference
    :param StorageElement oSE: StorageElement instance
    """
        res = oSE.getStorageParameters("SRM2")
        if not res['OK']:
            return res
        return S_OK(res['Value'].get('SpaceToken'))

    ####################################################################
    #
    #  Methods for setting/getting FTS request parameters
    #

    def setFTSGUID(self, guid):
        """ FTS job GUID setter 
    
    :param self: self reference
    :param str guid: string containg GUID
    """
        if not checkGuid(guid):
            return S_ERROR("Incorrect GUID format")
        self.ftsGUID = guid
        return S_OK()

    def getFTSGUID(self):
        """ FTS job GUID getter

    :param self: self refenece
    """
        if not self.ftsGUID:
            return S_ERROR("FTSGUID not set")
        return S_OK(self.ftsGUID)

    def setFTSServer(self, server):
        """ FTS server setter

    :param self: self reference
    :param str server: FTS server URL
    """
        self.ftsServer = server
        return S_OK()

    def getFTSServer(self):
        """ FTS server getter

    :param self: self reference
    """
        if not self.ftsServer:
            return S_ERROR("FTSServer not set")
        return S_OK(self.ftsServer)

    def setPriority(self, priority):
        """ set priority for FTS job
    
    :param self: self reference
    :param int priority: a new priority
    """
        if not type(priority) in (IntType, LongType):
            return S_ERROR("Priority must be integer")
        if priority < 0:
            priority = 0
        elif priority > 5:
            priority = 5
        self.priority = priority
        return S_OK(self.priority)

    def getPriority(self):
        """ FTS job priority getter

    :param self: self reference
    """
        return S_OK(self.priority)

    def getPercentageComplete(self):
        """ get completness percentage

    :param self: self reference
    """
        completedFiles = 0
        totalFiles = 0
        for state in (self.statusSummary.keys()):
            if state in self.successfulStates:
                completedFiles += self.statusSummary[state]
            totalFiles += self.statusSummary[state]
        self.percentageComplete = (float(completedFiles) *
                                   100.0) / float(totalFiles)
        return S_OK(self.percentageComplete)

    def isRequestTerminal(self):
        """ check if FTS job has terminated

    :param self: self reference
    """
        if self.requestStatus in self.finalStates:
            self.isTerminal = True
        return S_OK(self.isTerminal)

    def getStatus(self):
        """ get FTS job status

    :param self: self reference
    """
        return S_OK(self.requestStatus)

    def setCksmType(self, cksm=None):
        """ set checksum type to use

    :param self: self reference
    :param mixed cksm: checksum type, should be one of 'Adler32', 'md5', 'sha1', None 
    """
        if str(cksm).upper() not in ("ADLER32", "MD5", "SHA1", "NONE"):
            return S_ERROR("Not supported checksum type: %s" % str(cksm))
        if not cksm:
            self.__cksmType = None
            return S_OK(False)
        self.__cksmType = str(cksm).upper()
        return S_OK(True)

    def getCksmType(self):
        """ get checksum type

    :param self: self reference
    """
        return S_OK(self.__cksmType)

    def setCksmTest(self, cksmTest=False):
        """ set cksm test

    :param self: self reference
    :param bool cksmTest: flag to enable/disable checksum test
    """
        self.__cksmTest = bool(cksmTest)
        return S_OK(self.__cksmTest)

    def getCksmTest(self):
        """ get cksm test flag

    :param self: self reference
    """
        return S_OK(self.__cksmTest)

    ####################################################################
    #
    #  Methods for setting/getting/checking files and their metadata
    #

    def setLFN(self, lfn):
        """ add LFN :lfn: to :fileDict:

    :param self: self reference
    :param str lfn: LFN to add to
    """
        if lfn not in self.fileDict:
            self.fileDict[lfn] = {}
        return S_OK()

    def setSourceSURL(self, lfn, surl):
        """ source SURL setter

    :param self: self reference
    :param str lfn: LFN 
    :param str surl: source SURL
    """
        target = self.fileDict[lfn].get('Target')
        if target == surl:
            return S_ERROR("Source and target the same")
        self.__setFileParameter(lfn, 'Source', surl)
        return S_OK()

    def getSourceSURL(self, lfn):
        """ get source SURL for LFN :lfn:

    :param self: self reference
    :param str lfn: LFN
    """
        return self.__getFileParameter(lfn, 'Source')

    def setTargetSURL(self, lfn, surl):
        """ set target SURL for LFN :lfn:

    :param self: self reference
    :param str lfn: LFN
    :param str surl: target SURL
    """
        source = self.fileDict[lfn].get('Source')
        if source == surl:
            return S_ERROR("Source and target the same")
        self.__setFileParameter(lfn, 'Target', surl)
        return S_OK()

    def getTargetSURL(self, lfn):
        """ target SURL getter

    :param self: self reference
    :param str lfn: LFN
    """
        return self.__getFileParameter(lfn, 'Target')

    def getFailReason(self, lfn):
        """ get fail reason for file :lfn:

    :param self: self reference
    :param str lfn: LFN
    """
        return self.__getFileParameter(lfn, 'Reason')

    def getRetries(self, lfn):
        """ get number of attepmts made to transfer file :lfn: 

    :param self: self reference
    :param str lfn: LFN
    """
        return self.__getFileParameter(lfn, 'Retries')

    def getTransferTime(self, lfn):
        """ get duration of transfer for file :lfn:

    :param self: self reference
    :param str lfn: LFN
    """
        return self.__getFileParameter(lfn, 'Duration')

    def getFailed(self):
        """ get list of wrongly transferred LFNs

    :param self: self reference
    """
        return S_OK([
            lfn for lfn in self.fileDict
            if self.fileDict[lfn].get('Status', '') in self.failedStates
        ])

    def getDone(self):
        """ get list of succesfully transferred LFNs 

    :param self: self reference
    """
        return S_OK([
            lfn for lfn in self.fileDict
            if self.fileDict[lfn].get('Status', '') in self.successfulStates
        ])

    def __setFileParameter(self, lfn, paramName, paramValue):
        """ set :paramName: to :paramValue: for :lfn: file
    
    :param self: self reference
    :param str lfn: LFN
    :param str paramName: parameter name
    :param mixed paramValue: a new parameter value
    """
        self.setLFN(lfn)
        self.fileDict[lfn][paramName] = paramValue
        return S_OK()

    def __getFileParameter(self, lfn, paramName):
        """ get value of :paramName: for file :lfn:

    :param self: self reference
    :param str lfn: LFN
    :param str paramName: parameter name
    """
        if lfn not in self.fileDict:
            return S_ERROR("Supplied file not set")
        if paramName not in self.fileDict[lfn]:
            return S_ERROR("%s not set for file" % paramName)
        return S_OK(self.fileDict[lfn][paramName])

    ####################################################################
    #
    #  Methods for submission
    #

    def submit(self, monitor=False, printOutput=True):
        """ submit FTS job 

    :param self: self reference
    :param bool monitor: flag to monitor progress of FTS job
    :param bool printOutput: flag to print output of execution to stdout
    """
        res = self.__isSubmissionValid()
        if not res['OK']:
            return res
        res = self.__createSURLPairFile()
        if not res['OK']:
            return res
        res = self.__submitFTSTransfer()
        if not res['OK']:
            return res
        resDict = {'ftsGUID': self.ftsGUID, 'ftsServer': self.ftsServer}
        print "Submitted %s @ %s" % (self.ftsGUID, self.ftsServer)
        if monitor:
            self.monitor(untilTerminal=True, printOutput=printOutput)
        return S_OK(resDict)

    def __isSubmissionValid(self):
        """ check validity of job before submission

    :param self: self reference
    """
        if not self.fileDict:
            return S_ERROR("No files set")
        if not self.sourceValid:
            return S_ERROR("SourceSE not valid")
        if not self.targetValid:
            return S_ERROR("TargetSE not valid")
        if not self.ftsServer:
            res = self.__resolveFTSServer()
            if not res['OK']:
                return S_ERROR("FTSServer not valid")
        self.resolveSource()
        self.resolveTarget()
        res = self.__filesToSubmit()
        if not res['OK']:
            return S_ERROR("No files to submit")
        return S_OK()

    def __getCatalogObject(self):
        """ CatalogInterface instance facade

    :param self: self reference
    """
        try:
            if not self.oCatalog:
                self.oCatalog = CatalogInterface()
            return S_OK()
        except:
            return S_ERROR()

    def __updateReplicaCache(self, lfns=None, overwrite=False):
        """ update replica cache for list of :lfns:

    :param self: self reference
    :param mixed lfns: list of LFNs
    :param bool overwrite: flag to trigger cache clearing and updating
    """
        if not lfns:
            lfns = self.fileDict.keys()
        toUpdate = [
            lfn for lfn in lfns
            if (lfn not in self.catalogReplicas) or overwrite
        ]
        if not toUpdate:
            return S_OK()
        res = self.__getCatalogObject()
        if not res['OK']:
            return res
        res = self.oCatalog.getCatalogReplicas(toUpdate)
        if not res['OK']:
            return S_ERROR("Failed to update replica cache: %s" %
                           res['Message'])
        for lfn, error in res['Value']['Failed'].items():
            self.__setFileParameter(lfn, 'Reason', error)
            self.__setFileParameter(lfn, 'Status', 'Failed')
        for lfn, replicas in res['Value']['Successful'].items():
            self.catalogReplicas[lfn] = replicas
        return S_OK()

    def __updateMetadataCache(self, lfns=None, overwrite=False):
        """ update metadata cache for list of LFNs

    :param self: self reference
    :param list lnfs: list of LFNs
    :param bool overwrite: flag to trigger cache clearing and updating
    """
        if not lfns:
            lfns = self.fileDict.keys()
        toUpdate = [
            lfn for lfn in lfns
            if (lfn not in self.catalogMetadata) or overwrite
        ]
        if not toUpdate:
            return S_OK()
        res = self.__getCatalogObject()
        if not res['OK']:
            return res
        res = self.oCatalog.getCatalogFileMetadata(toUpdate)
        if not res['OK']:
            return S_ERROR("Failed to get source catalog metadata: %s" %
                           res['Message'])
        for lfn, error in res['Value']['Failed'].items():
            self.__setFileParameter(lfn, 'Reason', error)
            self.__setFileParameter(lfn, 'Status', 'Failed')
        for lfn, metadata in res['Value']['Successful'].items():
            self.catalogMetadata[lfn] = metadata
        return S_OK()

    def resolveSource(self):
        """ resolve source SE eligible for submission

    :param self: self reference
    """
        toResolve = [lfn for lfn in self.fileDict]
        if not toResolve:
            return S_OK()
        res = self.__updateMetadataCache(toResolve)
        if not res['OK']:
            return res
        res = self.__updateReplicaCache(toResolve)
        if not res['OK']:
            return res
        for lfn in toResolve:
            if self.fileDict[lfn].get("Status", "") == "Failed":
                continue
            replicas = self.catalogReplicas.get(lfn, {})
            if self.sourceSE not in replicas:
                gLogger.warn(
                    "resolveSource: skipping %s - not replicas at SourceSE %s"
                    % (lfn, self.sourceSE))
                self.__setFileParameter(lfn, 'Reason',
                                        "No replica at SourceSE")
                self.__setFileParameter(lfn, 'Status', 'Failed')
                continue
            res = self.oSourceSE.getPfnForProtocol(replicas[self.sourceSE],
                                                   'SRM2',
                                                   withPort=True)
            if not res['OK']:
                gLogger.warn("resolveSource: skipping %s - %s" %
                             (lfn, res["Message"]))
                self.__setFileParameter(lfn, 'Reason', res['Message'])
                self.__setFileParameter(lfn, 'Status', 'Failed')
                continue
            res = self.setSourceSURL(lfn, res['Value'])
            if not res['OK']:
                gLogger.warn("resolveSource: skipping %s - %s" %
                             (lfn, res["Message"]))
                self.__setFileParameter(lfn, 'Reason', res['Message'])
                self.__setFileParameter(lfn, 'Status', 'Failed')
                continue

        toResolve = {}
        for lfn in self.fileDict:
            if "Source" in self.fileDict[lfn]:
                toResolve[self.fileDict[lfn]['Source']] = lfn
        if not toResolve:
            return S_ERROR("No eligible Source files")
        res = self.oSourceSE.getFileMetadata(toResolve.keys())
        if not res['OK']:
            return S_ERROR("Failed to check source file metadata")
        for pfn, error in res['Value']['Failed'].items():
            lfn = toResolve[pfn]
            if re.search('File does not exist', error):
                gLogger.warn(
                    "resolveSource: skipping %s - source file does not exists"
                    % lfn)
                self.__setFileParameter(lfn, 'Reason',
                                        "Source file does not exist")
                self.__setFileParameter(lfn, 'Status', 'Failed')
            else:
                gLogger.warn(
                    "resolveSource: skipping %s - failed to get source metadata"
                    % lfn)
                self.__setFileParameter(lfn, 'Reason',
                                        "Failed to get Source metadata")
                self.__setFileParameter(lfn, 'Status', 'Failed')
        for pfn, metadata in res['Value']['Successful'].items():
            lfn = toResolve[pfn]
            if metadata['Unavailable']:
                gLogger.warn(
                    "resolveSource: skipping %s - source file unavailable" %
                    lfn)
                self.__setFileParameter(lfn, 'Reason',
                                        "Source file Unavailable")
                self.__setFileParameter(lfn, 'Status', 'Failed')
            elif metadata['Lost']:
                gLogger.warn("resolveSource: skipping %s - source file lost" %
                             lfn)
                self.__setFileParameter(lfn, 'Reason', "Source file Lost")
                self.__setFileParameter(lfn, 'Status', 'Failed')
            elif not metadata['Cached']:
                gLogger.warn(
                    "resolveSource: source file %s not cached, prestaging..." %
                    lfn)
                stage = self.replicaManager.prestageStorageFile(
                    pfn, self.sourceSE, singleFile=True)
                if not stage["OK"]:
                    gLogger.warn("resolveSource: skipping %s - %s" %
                                 (lfn, stage["Message"]))
                    self.__setFileParameter(lfn, 'Reason', stage["Message"])
                    self.__setFileParameter(lfn, 'Status', 'Failed')
            elif metadata['Size'] != self.catalogMetadata[lfn]['Size']:
                gLogger.warn(
                    "resolveSource: skipping %s - source file size mismatch" %
                    lfn)
                self.__setFileParameter(lfn, 'Reason', "Source size mismatch")
                self.__setFileParameter(lfn, 'Status', 'Failed')
            elif self.catalogMetadata[lfn]['Checksum'] and metadata['Checksum'] and \
                  not ( compareAdler( metadata['Checksum'], self.catalogMetadata[lfn]['Checksum'] ) ):
                gLogger.warn(
                    "resolveSource: skipping %s - source file checksum mismatch"
                    % lfn)
                self.__setFileParameter(lfn, 'Reason',
                                        "Source checksum mismatch")
                self.__setFileParameter(lfn, 'Status', 'Failed')
        return S_OK()

    def resolveTarget(self):
        """ find target SE eligible for submission 

    :param self: self reference
    """
        toResolve = [lfn for lfn in self.fileDict]
        if not toResolve:
            return S_OK()
        res = self.__updateReplicaCache(toResolve)
        if not res['OK']:
            return res
        for lfn in toResolve:
            if (self.fileDict[lfn].get('Status') == 'Failed'):
                continue
            res = self.oTargetSE.getPfnForLfn(lfn)
            if not res['OK']:
                gLogger.warn(
                    "resolveTarget: skipping %s - failed to create target pfn"
                    % lfn)
                self.__setFileParameter(lfn, 'Reason',
                                        "Failed to create Target")
                self.__setFileParameter(lfn, 'Status', 'Failed')
                continue
            res = self.oTargetSE.getPfnForProtocol(res['Value'],
                                                   'SRM2',
                                                   withPort=True)
            if not res['OK']:
                gLogger.warn("resolveTarget: skipping %s - %s" %
                             (lfn, res["Message"]))
                self.__setFileParameter(lfn, 'Reason', res['Message'])
                self.__setFileParameter(lfn, 'Status', 'Failed')
                continue
            res = self.setTargetSURL(lfn, res['Value'])
            if not res['OK']:
                gLogger.warn("resolveTarget: skipping %s - %s" %
                             (lfn, res["Message"]))
                self.__setFileParameter(lfn, 'Reason', res['Message'])
                self.__setFileParameter(lfn, 'Status', 'Failed')
                continue
        toResolve = {}
        for lfn in self.fileDict:
            if "Target" in self.fileDict[lfn]:
                toResolve[self.fileDict[lfn]['Target']] = lfn
        if not toResolve:
            return S_ERROR("No eligible Target files")
        res = self.oTargetSE.exists(toResolve.keys())
        if not res['OK']:
            return S_ERROR("Failed to check target existence")
        for pfn, error in res['Value']['Failed'].items():
            lfn = toResolve[pfn]
            self.__setFileParameter(lfn, 'Reason', error)
            self.__setFileParameter(lfn, 'Status', 'Failed')
        toRemove = []
        for pfn, exists in res['Value']['Successful'].items():
            if exists:
                lfn = toResolve[pfn]
                res = self.getSourceSURL(lfn)
                if not res['OK']:
                    gLogger.warn("resolveTarget: skipping %s - target exists" %
                                 lfn)
                    self.__setFileParameter(lfn, 'Reason', "Target exists")
                    self.__setFileParameter(lfn, 'Status', 'Failed')
                elif res['Value'] == pfn:
                    gLogger.warn(
                        "resolveTarget: skipping %s - source and target pfns are teh same"
                        % lfn)
                    self.__setFileParameter(lfn, 'Reason',
                                            "Source and Target the same")
                    self.__setFileParameter(lfn, 'Status', 'Failed')
                else:
                    toRemove.append(pfn)
        if toRemove:
            self.oTargetSE.removeFile(toRemove)
        return S_OK()

    def __filesToSubmit(self):
        """
    check if there is at least one file to submit 

    :return: S_OK if at least one file is present, S_ERROR otherwise
    """
        for lfn in self.fileDict:
            lfnStatus = self.fileDict[lfn].get('Status')
            source = self.fileDict[lfn].get('Source')
            target = self.fileDict[lfn].get('Target')
            if (lfnStatus != 'Failed') and (lfnStatus !=
                                            'Done') and source and target:
                return S_OK()
        return S_ERROR()

    def __createSURLPairFile(self):
        """ create LFNs file for glite-transfer-submit command

    This file consists one line for each fiel to be transferred:

    sourceSURL targetSURL [CHECKSUMTYPE:CHECKSUM]

    :param self: self reference
    """
        fd, fileName = tempfile.mkstemp()
        surlFile = os.fdopen(fd, 'w')
        for lfn in self.fileDict:
            lfnStatus = self.fileDict[lfn].get('Status')
            source = self.fileDict[lfn].get('Source')
            target = self.fileDict[lfn].get('Target')
            if (lfnStatus not in ('Failed', 'Done')) and source and target:
                cksmStr = ""
                ## add chsmType:cksm only if cksmType is specified, else let FTS decide by itself
                if self.__cksmTest and self.__cksmType:
                    if lfn in self.catalogMetadata and "Checksum" in self.catalogMetadata[
                            lfn]:
                        cksmStr = " %s:%s" % (self.__cksmType, self.
                                              catalogMetadata[lfn]["Checksum"])
                surlFile.write("%s %s%s\n" % (source, target, cksmStr))
        surlFile.close()
        self.surlFile = fileName
        return S_OK()

    def __submitFTSTransfer(self):
        """ create and execute glite-transfer-submit CLI command 

    :param self: self reference
    """
        comm = [
            'glite-transfer-submit', '-s', self.ftsServer, '-f', self.surlFile,
            '-o'
        ]
        if self.targetToken:
            comm.append('-t')
            comm.append(self.targetToken)
        if self.sourceToken:
            comm.append('-S')
            comm.append(self.sourceToken)
        if self.__cksmTest:
            comm.append("--compare-checksums")
        res = executeGridCommand('', comm)
        os.remove(self.surlFile)
        if not res['OK']:
            return res
        returnCode, output, errStr = res['Value']
        if not returnCode == 0:
            return S_ERROR(errStr)
        guid = output.replace('\n', '')
        if not checkGuid(guid):
            return S_ERROR('Wrong GUID format returned')
        self.ftsGUID = guid
        #if self.priority != 3:
        #  comm = ['glite-transfer-setpriority','-s', self.ftsServer,self.ftsGUID,str(self.priority)]
        #  executeGridCommand('',comm)
        return res

    def __resolveFTSServer(self):
        """
    resolve FTS server to use, it should be the closest one from target SE

    :param self: self reference
    """
        if not self.sourceSE:
            return S_ERROR("Source SE not set")
        if not self.targetSE:
            return S_ERROR("Target SE not set")
        res = getSitesForSE(self.sourceSE, 'LCG')
        if not res['OK'] or not res['Value']:
            return S_ERROR("Could not determine source site")
        sourceSite = res['Value'][0]
        res = getSitesForSE(self.targetSE, 'LCG')
        if not res['OK'] or not res['Value']:
            return S_ERROR("Could not determine target site")
        targetSite = res['Value'][0]

        if (sourceSite == 'LCG.CERN.ch') or (targetSite == 'LCG.CERN.ch'):
            ep = 'LCG.CERN.ch'
        else:
            # Target site FTS server should be used
            ep = targetSite

        try:
            configPath = '/Resources/FTSEndpoints/%s' % ep
            endpointURL = gConfig.getValue(configPath)
            if not endpointURL:
                errStr = "FTSRequest.__resolveFTSServer: Failed to find FTS endpoint, check CS entry for '%s'." % ep
                return S_ERROR(errStr)
            self.ftsServer = endpointURL
            return S_OK(endpointURL)
        except Exception, x:
            return S_ERROR(
                'FTSRequest.__resolveFTSServer: Failed to obtain endpoint details from CS'
            )
コード例 #10
0
class FTSRequest:
    def __init__(self):

        self.gridEnv = '/afs/cern.ch/project/gd/LCG-share/3.2.8-0/etc/profile.d/grid-env'

        self.finalStates = [
            'Canceled', 'Failed', 'Hold', 'Finished', 'FinishedDirty'
        ]
        self.failedStates = ['Canceled', 'Failed', 'Hold', 'FinishedDirty']
        self.successfulStates = ['Finished', 'Done']
        self.fileStates = [
            'Done', 'Active', 'Pending', 'Ready', 'Canceled', 'Failed',
            'Finishing', 'Finished', 'Submitted', 'Hold', 'Waiting'
        ]

        self.newlyCompletedFiles = []
        self.newlyFailedFiles = []

        self.statusSummary = {}
        self.requestStatus = 'Unknown'

        self.fileDict = {}
        self.catalogReplicas = {}
        self.catalogMetadata = {}

        self.oCatalog = None

        self.submitTime = ''

        self.ftsGUID = ''
        self.ftsServer = ''
        self.priority = 3
        self.isTerminal = False
        self.percentageComplete = 0.0

        self.sourceSE = ''
        self.sourceValid = False
        self.sourceToken = ''

        self.targetSE = ''
        self.targetValid = False
        self.targetToken = ''

        self.dumpStr = ''

    ####################################################################
    #
    #  Methods for setting/getting/checking the SEs
    #

    def setSourceSE(self, se):
        if se == self.targetSE:
            return S_ERROR("SourceSE is TargetSE")
        self.sourceSE = se
        self.oSourceSE = StorageElement(self.sourceSE)
        return self.__checkSourceSE()

    def getSourceSE(self):
        if not self.sourceSE:
            return S_ERROR("Source SE not defined")
        return S_OK(self.sourceSE)

    def setSourceToken(self, token):
        self.sourceToken = token
        return S_OK()

    def getSourceToken(self):
        if not self.sourceToken:
            return S_ERROR("Source token not defined")
        return S_OK(self.sourceToken)

    def __checkSourceSE(self):
        if not self.sourceSE:
            return S_ERROR("SourceSE not set")
        res = self.oSourceSE.isValid('Read')
        if not res['OK']:
            return S_ERROR("SourceSE not available for reading")
        res = self.__getSESpaceToken(self.oSourceSE)
        if not res['OK']:
            gLogger.error(
                "FTSRequest failed to get SRM Space Token for SourceSE",
                res['Message'])
            return S_ERROR("SourceSE does not support FTS transfers")
        self.sourceToken = res['Value']
        self.sourceValid = True
        return S_OK()

    def setTargetSE(self, se):
        if se == self.sourceSE:
            return S_ERROR("TargetSE is SourceSE")
        self.targetSE = se
        self.oTargetSE = StorageElement(self.targetSE)
        return self.__checkTargetSE()

    def getTargetSE(self):
        if not self.targetSE:
            return S_ERROR("Target SE not defined")
        return S_OK(self.targetSE)

    def setTargetToken(self, token):
        self.targetToken = token
        return S_OK()

    def getTargetToken(self):
        if not self.targetToken:
            return S_ERROR("Target token not defined")
        return S_OK(self.targetToken)

    def __checkTargetSE(self):
        if not self.targetSE:
            return S_ERROR("TargetSE not set")
        res = self.oTargetSE.isValid('Write')
        if not res['OK']:
            return S_ERROR("TargetSE not available for writing")
        res = self.__getSESpaceToken(self.oTargetSE)
        if not res['OK']:
            gLogger.error(
                "FTSRequest failed to get SRM Space Token for TargetSE",
                res['Message'])
            return S_ERROR("SourceSE does not support FTS transfers")
        self.targetToken = res['Value']
        self.targetValid = True
        return S_OK()

    def __getSESpaceToken(self, oSE):
        res = oSE.getStorageParameters("SRM2")
        if not res['OK']:
            return res
        return S_OK(res['Value'].get('SpaceToken'))

    ####################################################################
    #
    #  Methods for setting/getting FTS request parameters
    #

    def setFTSGUID(self, guid):
        if not checkGuid(guid):
            return S_ERROR("Incorrect GUID format")
        self.ftsGUID = guid
        return S_OK()

    def getFTSGUID(self):
        if not self.ftsGUID:
            return S_ERROR("FTSGUID not set")
        return S_OK(self.ftsGUID)

    def setFTSServer(self, server):
        self.ftsServer = server
        return S_OK()

    def getFTSServer(self):
        if not self.ftsServer:
            return S_ERROR("FTSServer not set")
        return S_OK(self.ftsServer)

    def setPriority(self, priority):
        if not type(priority) in [types.IntType, types.LongType]:
            return S_ERROR("Priority must be integer")
        if priority < 0:
            priority = 0
        elif priority > 5:
            priority = 5
        self.priority = priority
        return S_OK(self.priority)

    def getPriority(self):
        return S_OK(self.priority)

    def getPercentageComplete(self):
        completedFiles = 0
        totalFiles = 0
        for state in (self.statusSummary.keys()):
            if state in self.successfulStates:
                completedFiles += self.statusSummary[state]
            totalFiles += self.statusSummary[state]
        self.percentageComplete = (float(completedFiles) *
                                   100.0) / float(totalFiles)
        return S_OK(self.percentageComplete)

    def isRequestTerminal(self):
        if self.requestStatus in self.finalStates:
            self.isTerminal = True
        return S_OK(self.isTerminal)

    def getStatus(self):
        return S_OK(self.requestStatus)

    ####################################################################
    #
    #  Methods for setting/getting/checking files and their metadata
    #

    def setLFN(self, lfn):
        if not self.fileDict.has_key(lfn):
            self.fileDict[lfn] = {}
        return S_OK()

    def setSourceSURL(self, lfn, surl):
        target = self.fileDict[lfn].get('Target')
        if target == surl:
            return S_ERROR("Source and target the same")
        self.__setFileParameter(lfn, 'Source', surl)
        return S_OK()

    def getSourceSURL(self, lfn):
        return self.__getFileParameter(lfn, 'Source')

    def setTargetSURL(self, lfn, surl):
        source = self.fileDict[lfn].get('Source')
        if source == surl:
            return S_ERROR("Source and target the same")
        self.__setFileParameter(lfn, 'Target', surl)
        return S_OK()

    def getTargetSURL(self, lfn):
        return self.__getFileParameter(lfn, 'Target')

    def getFailReason(self, lfn):
        return self.__getFileParameter(lfn, 'Reason')

    def getRetries(self, lfn):
        return self.__getFileParameter(lfn, 'Retries')

    def getTransferTime(self, lfn):
        return self.__getFileParameter(lfn, 'Duration')

    def getFailed(self):
        failed = []
        for lfn in self.fileDict.keys():
            status = self.fileDict[lfn].get('Status', '')
            if status in self.failedStates:
                failed.append(lfn)
        return S_OK(failed)

    def getDone(self):
        done = []
        for lfn in self.fileDict.keys():
            status = self.fileDict[lfn].get('Status', '')
            if status in self.successfulStates:
                done.append(lfn)
        return S_OK(done)

    def __setFileParameter(self, lfn, paramName, paramValue):
        self.setLFN(lfn)
        self.fileDict[lfn][paramName] = paramValue
        return S_OK()

    def __getFileParameter(self, lfn, paramName):
        if not self.fileDict.has_key(lfn):
            return S_ERROR("Supplied file not set")
        if not self.fileDict[lfn].has_key(paramName):
            return S_ERROR("%s not set for file" % paramName)
        return S_OK(self.fileDict[lfn][paramName])

    ####################################################################
    #
    #  Methods for submission
    #

    def submit(self, monitor=False, printOutput=True):
        res = self.__isSubmissionValid()
        if not res['OK']:
            return res
        res = self.__createSURLPairFile()
        if not res['OK']:
            return res
        res = self.__submitFTSTransfer()
        if not res['OK']:
            return res
        resDict = {'ftsGUID': self.ftsGUID, 'ftsServer': self.ftsServer}
        print "Submitted %s @ %s" % (self.ftsGUID, self.ftsServer)
        if monitor:
            self.monitor(untilTerminal=True, printOutput=printOutput)
        return S_OK(resDict)

    def __isSubmissionValid(self):
        if not self.fileDict:
            return S_ERROR("No files set")
        if not self.sourceValid:
            return S_ERROR("SourceSE not valid")
        if not self.targetValid:
            return S_ERROR("TargetSE not valid")
        if not self.ftsServer:
            res = self.__resolveFTSServer()
            if not res['OK']:
                return S_ERROR("FTSServer not valid")
        self.__resolveSource()
        self.__resolveTarget()
        res = self.__filesToSubmit()
        if not res['OK']:
            return S_ERROR("No files to submit")
        return S_OK()

    def __getCatalogObject(self):
        try:
            if not self.oCatalog:
                self.oCatalog = CatalogInterface()
            return S_OK()
        except:
            return S_ERROR()

    def __updateReplicaCache(self, lfns=[], overwrite=False):
        if not lfns:
            lfns = self.fileDict.keys()
        toUpdate = []
        for lfn in lfns:
            if (not lfn in self.catalogReplicas.keys()) or overwrite:
                toUpdate.append(lfn)
        if not toUpdate:
            return S_OK()
        res = self.__getCatalogObject()
        if not res['OK']:
            return res
        res = self.oCatalog.getCatalogReplicas(toUpdate)
        if not res['OK']:
            return S_ERROR("Failed to update replica cache", res['Message'])
        for lfn, error in res['Value']['Failed'].items():
            self.__setFileParameter(lfn, 'Reason', error)
            self.__setFileParameter(lfn, 'Status', 'Failed')
        for lfn, replicas in res['Value']['Successful'].items():
            self.catalogReplicas[lfn] = replicas
        return S_OK()

    def __updateMetadataCache(self, lfns=[], overwrite=False):
        if not lfns:
            lfns = self.fileDict.keys()
        toUpdate = []
        for lfn in lfns:
            if (not lfn in self.catalogMetadata.keys()) or overwrite:
                toUpdate.append(lfn)
        if not toUpdate:
            return S_OK()
        res = self.__getCatalogObject()
        if not res['OK']:
            return res
        res = self.oCatalog.getCatalogFileMetadata(toUpdate)
        if not res['OK']:
            return S_ERROR("Failed to get source catalog metadata",
                           res['Message'])
        for lfn, error in res['Value']['Failed'].items():
            self.__setFileParameter(lfn, 'Reason', error)
            self.__setFileParameter(lfn, 'Status', 'Failed')
        for lfn, metadata in res['Value']['Successful'].items():
            self.catalogMetadata[lfn] = metadata
        return S_OK()

    def __resolveSource(self):
        toResolve = []
        for lfn in self.fileDict.keys():
            if (not self.fileDict[lfn].has_key('Source')) and (
                    self.fileDict[lfn].get('Status') != 'Failed'):
                toResolve.append(lfn)
        if not toResolve:
            return S_OK()
        res = self.__updateMetadataCache(toResolve)
        if not res['OK']:
            return res
        res = self.__updateReplicaCache(toResolve)
        if not res['OK']:
            return res
        for lfn in toResolve:
            if self.fileDict[lfn].get('Status') == 'Failed':
                continue
            replicas = self.catalogReplicas.get(lfn, {})
            if not replicas.has_key(self.sourceSE):
                self.__setFileParameter(lfn, 'Reason',
                                        "No replica at SourceSE")
                self.__setFileParameter(lfn, 'Status', 'Failed')
                continue
            res = self.oSourceSE.getPfnForProtocol(replicas[self.sourceSE],
                                                   'SRM2',
                                                   withPort=True)
            if not res['OK']:
                self.__setFileParameter(lfn, 'Reason', res['Message'])
                self.__setFileParameter(lfn, 'Status', 'Failed')
                continue
            res = self.setSourceSURL(lfn, res['Value'])
            if not res['OK']:
                self.__setFileParameter(lfn, 'Reason', res['Message'])
                self.__setFileParameter(lfn, 'Status', 'Failed')
                continue

        toResolve = {}
        for lfn in self.fileDict.keys():
            if self.fileDict[lfn].has_key('Source'):
                toResolve[self.fileDict[lfn]['Source']] = lfn
        if not toResolve:
            return S_ERROR("No eligible Source files")
        res = self.oSourceSE.getFileMetadata(toResolve.keys())
        if not res['OK']:
            return S_ERROR("Failed to check source file metadata")
        for pfn, error in res['Value']['Failed'].items():
            lfn = toResolve[pfn]
            if re.search('File does not exist', error):
                self.__setFileParameter(lfn, 'Reason',
                                        "Source file does not exist")
                self.__setFileParameter(lfn, 'Status', 'Failed')
            else:
                self.__setFileParameter(lfn, 'Reason',
                                        "Failed to get Source metadata")
                self.__setFileParameter(lfn, 'Status', 'Failed')
        for pfn, metadata in res['Value']['Successful'].items():
            lfn = toResolve[pfn]
            if metadata['Unavailable']:
                self.__setFileParameter(lfn, 'Reason',
                                        "Source file Unavailable")
                self.__setFileParameter(lfn, 'Status', 'Failed')
            elif metadata['Lost']:
                self.__setFileParameter(lfn, 'Reason', "Source file Lost")
                self.__setFileParameter(lfn, 'Status', 'Failed')
            elif not metadata['Cached']:
                self.__setFileParameter(lfn, 'Reason',
                                        "Source file not Cached")
                self.__setFileParameter(lfn, 'Status', 'Failed')
            elif metadata['Size'] != self.catalogMetadata[lfn]['Size']:
                self.__setFileParameter(lfn, 'Reason', "Source size mismatch")
                self.__setFileParameter(lfn, 'Status', 'Failed')
            elif self.catalogMetadata[lfn]['Checksum'] and metadata[
                    'Checksum'] and not (compareAdler(
                        metadata['Checksum'],
                        self.catalogMetadata[lfn]['Checksum'])):
                self.__setFileParameter(lfn, 'Reason',
                                        "Source checksum mismatch")
                self.__setFileParameter(lfn, 'Status', 'Failed')
        return S_OK()

    def __resolveTarget(self):
        toResolve = []
        for lfn in self.fileDict.keys():
            if not self.fileDict[lfn].has_key('Target') and (
                    self.fileDict[lfn].get('Status') != 'Failed'):
                toResolve.append(lfn)
        if not toResolve:
            return S_OK()
        res = self.__updateReplicaCache(toResolve)
        if not res['OK']:
            return res
        atTarget = []
        for lfn in sortList(toResolve):
            if self.fileDict[lfn].get('Status') == 'Failed':
                continue
            replicas = self.catalogReplicas.get(lfn, {})
            if replicas.has_key(self.targetSE):
                self.__setFileParameter(lfn, 'Reason',
                                        "File already at Target")
                self.__setFileParameter(lfn, 'Status', 'Done')
                atTarget.append(lfn)
        for lfn in toResolve:
            if (self.fileDict[lfn].get('Status') == 'Failed') or (lfn
                                                                  in atTarget):
                continue
            res = self.oTargetSE.getPfnForLfn(lfn)
            if not res['OK']:
                self.__setFileParameter(lfn, 'Reason',
                                        "Failed to create Target")
                self.__setFileParameter(lfn, 'Status', 'Failed')
                continue
            res = self.oTargetSE.getPfnForProtocol(res['Value'],
                                                   'SRM2',
                                                   withPort=True)
            if not res['OK']:
                self.__setFileParameter(lfn, 'Reason', res['Message'])
                self.__setFileParameter(lfn, 'Status', 'Failed')
                continue
            res = self.setTargetSURL(lfn, res['Value'])
            if not res['OK']:
                self.__setFileParameter(lfn, 'Reason', res['Message'])
                self.__setFileParameter(lfn, 'Status', 'Failed')
                continue
        toResolve = {}
        for lfn in self.fileDict.keys():
            if self.fileDict[lfn].has_key('Target'):
                toResolve[self.fileDict[lfn]['Target']] = lfn
        if not toResolve:
            return S_ERROR("No eligible Target files")
        res = self.oTargetSE.exists(toResolve.keys())
        if not res['OK']:
            return S_ERROR("Failed to check target existence")
        for pfn, error in res['Value']['Failed'].items():
            lfn = toResolve[pfn]
            self.__setFileParameter(lfn, 'Reason', error)
            self.__setFileParameter(lfn, 'Status', 'Failed')
        toRemove = []
        for pfn, exists in res['Value']['Successful'].items():
            if exists:
                lfn = toResolve[pfn]
                res = self.getSourceSURL(lfn)
                if not res['OK']:
                    self.__setFileParameter(lfn, 'Reason', "Target exists")
                    self.__setFileParameter(lfn, 'Status', 'Failed')
                elif res['Value'] == pfn:
                    self.__setFileParameter(lfn, 'Reason',
                                            "Source and Target the same")
                    self.__setFileParameter(lfn, 'Status', 'Failed')
                else:
                    toRemove.append(pfn)
        if toRemove:
            self.oTargetSE.removeFile(toRemove)
        return S_OK()

    def __filesToSubmit(self):
        for lfn in self.fileDict.keys():
            lfnStatus = self.fileDict[lfn].get('Status')
            source = self.fileDict[lfn].get('Source')
            target = self.fileDict[lfn].get('Target')
            if (lfnStatus != 'Failed') and (lfnStatus !=
                                            'Done') and source and target:
                return S_OK()
        return S_ERROR()

    def __createSURLPairFile(self):
        fd, fileName = tempfile.mkstemp()
        surlFile = os.fdopen(fd, 'w')
        for lfn in self.fileDict.keys():
            lfnStatus = self.fileDict[lfn].get('Status')
            source = self.fileDict[lfn].get('Source')
            target = self.fileDict[lfn].get('Target')
            if (lfnStatus != 'Failed') and (lfnStatus !=
                                            'Done') and source and target:
                surlString = '%s %s\n' % (source, target)
                surlFile.write(surlString)
        surlFile.close()
        self.surlFile = fileName
        return S_OK()

    def __submitFTSTransfer(self):
        comm = [
            'glite-transfer-submit', '-s', self.ftsServer, '-f', self.surlFile,
            '-o'
        ]
        if self.targetToken:
            comm.append('-t')
            comm.append(self.targetToken)
        if self.sourceToken:
            comm.append('-S')
            comm.append(self.sourceToken)
        res = executeGridCommand('', comm, self.gridEnv)
        os.remove(self.surlFile)
        if not res['OK']:
            return res
        returnCode, output, errStr = res['Value']
        if not returnCode == 0:
            return S_ERROR(errStr)
        guid = output.replace('\n', '')
        if not checkGuid(guid):
            return S_ERROR('Wrong GUID format returned')
        self.ftsGUID = guid
        #if self.priority != 3:
        #  comm = ['glite-transfer-setpriority','-s', self.ftsServer,self.ftsGUID,str(self.priority)]
        #  executeGridCommand('',comm,self.gridEnv)
        return res

    def __resolveFTSServer(self):
        if not self.sourceSE:
            return S_ERROR("Source SE not set")
        if not self.targetSE:
            return S_ERROR("Target SE not set")
        res = getSitesForSE(self.sourceSE, 'LCG')
        if not res['OK'] or not res['Value']:
            return S_ERROR("Could not determine source site")
        sourceSite = res['Value'][0]
        res = getSitesForSE(self.targetSE, 'LCG')
        if not res['OK'] or not res['Value']:
            return S_ERROR("Could not determine target site")
        targetSite = res['Value'][0]

        if (sourceSite == 'LCG.CERN.ch') or (targetSite == 'LCG.CERN.ch'):
            ep = 'LCG.CERN.ch'
        else:
            # Target site FTS server should be used
            ep = targetSite

        try:
            configPath = '/Resources/FTSEndpoints/%s' % ep
            endpointURL = gConfig.getValue(configPath)
            if not endpointURL:
                errStr = "FTSRequest.__resolveFTSEndpoint: Failed to find FTS endpoint, check CS entry for '%s'." % ep
                return S_ERROR(errStr)
            self.ftsServer = endpointURL
            return S_OK(endpointURL)
        except Exception, x:
            return S_ERROR(
                'FTSRequest.__resolveFTSEndpoint: Failed to obtain endpoint details from CS'
            )