def deleteFile(setting, metadata):
'''Workflow of Delete file.'''
if setting.deduplication == False:
#Acquire write lock if using ZooKeeper:
#if setting.zookeeper: setting.zk.getWriteLock(metadata) #cq
#Download metadata:
storage.downloadMetadata(setting, metadata)
#Delete chunk files and metadata:
storage.deleteChunkAndMetadata(setting, metadata)
#Release write lock:
#if setting.zookeeper: setting.zk.releaseWriteLock(metadata) #cq
else:
orgState = storage.detectOrgState(setting, metadata)
if orgState == 3:
# non_dup
print "remove non_dup"
#Download metadata:
storage.downloadMetadata(setting, metadata)
#Delete chunk files and metadata:
storage.deleteChunkAndMetadata(setting, metadata)
elif orgState == 2:
# leaf
print "remove leaf"
storage.deletePointer(setting, metadata)
elif orgState == 1:
# org
print "remove org"
storage.downloadMetadata(setting, metadata)
storage.deleteChunkAndMetadata(setting, metadata)
dupFileName = storage.findOnePointer(setting, metadata)
dupMetadata = common.FileMetadata(dupFileName, 0, setting.totalnode, setting.coding)
storage.deletePointer(setting, dupMetadata)
coding.encodeFile(setting,dupMetadata)
storage.uploadFileAndMetadata(setting, dupMetadata,'upload')
storage.updatePointers(setting,metadata,dupMetadata)
def deleteFile(setting, metadata):
'''Workflow of Delete file.'''
if setting.deduplication == False:
#Acquire write lock if using ZooKeeper:
#if setting.zookeeper: setting.zk.getWriteLock(metadata) #cq
#Download metadata:
storage.downloadMetadata(setting, metadata)
#Delete chunk files and metadata:
storage.deleteChunkAndMetadata(setting, metadata)
#Release write lock:
#if setting.zookeeper: setting.zk.releaseWriteLock(metadata) #cq
else:
orgState = storage.detectOrgState(setting, metadata)
if orgState == 3:
# non_dup
print "remove non_dup"
#Download metadata:
storage.downloadMetadata(setting, metadata)
#Delete chunk files and metadata:
storage.deleteChunkAndMetadata(setting, metadata)
elif orgState == 2:
# leaf
print "remove leaf"
storage.deletePointer(setting, metadata)
elif orgState == 1:
# org
print "remove org"
storage.downloadMetadata(setting, metadata)
storage.deleteChunkAndMetadata(setting, metadata)
dupFileName = storage.findOnePointer(setting, metadata)
dupMetadata = common.FileMetadata(dupFileName, 0,
setting.totalnode,
setting.coding)
storage.deletePointer(setting, dupMetadata)
coding.encodeFile(setting, dupMetadata)
storage.uploadFileAndMetadata(setting, dupMetadata, 'upload')
storage.updatePointers(setting, metadata, dupMetadata)
def uploadFile(setting, metadata):
'''Workflow of Upload file.'''
if setting.deduplication == False:
#Encode file:
print "deduplication False, workflow upload file"
coding.encodeFile(setting, metadata)
#Acquire write lock if using ZooKeeper:
#if setting.zookeeper: setting.zk.getWriteLock(metadata) #cq
#Upload chunk files and metadata:
storage.uploadFileAndMetadata(setting, metadata, 'upload')
#Release write lock:
#if setting.zookeeper: setting.zk.releaseWriteLock(metadata) #cq
else:
print "deduplicatoin True, workflow upload file"
orgState = storage.detectOrgState(setting, metadata)
print "orgState %d" % (orgState)
currState = storage.detectCurrState(setting, metadata)
print "currState %d" % (currState[0])
if orgState == 3 and currState[0] == 0:
# non_dup => non_dup or new => non_dup
print 'orgState %d to currState %d' % (orgState, currState[0])
coding.encodeFile(setting, metadata)
storage.uploadFileAndMetadata(setting,metadata,'upload')
elif orgState == 3 and currState[0] == 1:
# non_dup => leaf or new => leaf
print 'orgState %d to currState %d' % (orgState, currState[0])
detState = storage.detectReplica(setting, metadata)
if detState == True:
deleteFile(setting, metadata)
storage.createPointer(setting, metadata, currState[1])
storage.uploadPointer(setting, metadata)
elif orgState == 2 and currState[0] == 1:
# leaf => leaf
print 'orgState %d to currState %d' % (orgState, currState[0])
storage.deletePointer(setting,metadata)
storage.createPointer(setting,metadata,currState[1])
storage.uploadPointer(setting,metadata)
elif orgState == 2 and currState[0] == 0:
# leaf => non_dup
print 'orgState %d to currState %d' % (orgState, currState[0])
storage.deletePointer(setting,metadata)
coding.encodeFile(setting,metadata)
storage.uploadFileAndMetadata(setting,metadata,'upload')
elif orgState == 1 and currState[0] == 0:
# org => non_dup
print 'orgState %d to currState %d' % (orgState, currState[0])
coding.encodeFile(setting,metadata)
storage.uploadFileAndMetadata(setting,metadata,'upload')
dupFileName = storage.findOnePointer(setting,metadata)
dupMetadata = common.FileMetadata(dupFileName,0,setting.totalnode,setting.coding)
storage.deletePointer(setting,dupMetadata)
coding.encodeFile(setting,dupMetadata)
storage.uploadFileAndMetadata(setting,dupMetadata,'upload')
storage.updatePointers(setting,metadata,dupMetadata)
elif orgState == 1 and currState[0] == 1:
# org => leaf
print 'orgState %d to currState %d' % (orgState, currState[0])
deleteFile(setting,metadata)
storage.createPointer(setting,metadata,currState[1])
storage.uploadPointer(setting,metadata)
'''
def uploadFile(setting, metadata):
'''Workflow of Upload file.'''
if setting.deduplication == False:
#Encode file:
print "deduplication False, workflow upload file"
coding.encodeFile(setting, metadata)
#Acquire write lock if using ZooKeeper:
#if setting.zookeeper: setting.zk.getWriteLock(metadata) #cq
#Upload chunk files and metadata:
storage.uploadFileAndMetadata(setting, metadata, 'upload')
#Release write lock:
#if setting.zookeeper: setting.zk.releaseWriteLock(metadata) #cq
else:
print "deduplicatoin True, workflow upload file"
orgState = storage.detectOrgState(setting, metadata)
print "orgState %d" % (orgState)
currState = storage.detectCurrState(setting, metadata)
print "currState %d" % (currState[0])
if orgState == 3 and currState[0] == 0:
# non_dup => non_dup or new => non_dup
print 'orgState %d to currState %d' % (orgState, currState[0])
coding.encodeFile(setting, metadata)
storage.uploadFileAndMetadata(setting, metadata, 'upload')
elif orgState == 3 and currState[0] == 1:
# non_dup => leaf or new => leaf
print 'orgState %d to currState %d' % (orgState, currState[0])
detState = storage.detectReplica(setting, metadata)
if detState == True:
deleteFile(setting, metadata)
storage.createPointer(setting, metadata, currState[1])
storage.uploadPointer(setting, metadata)
elif orgState == 2 and currState[0] == 1:
# leaf => leaf
print 'orgState %d to currState %d' % (orgState, currState[0])
storage.deletePointer(setting, metadata)
storage.createPointer(setting, metadata, currState[1])
storage.uploadPointer(setting, metadata)
elif orgState == 2 and currState[0] == 0:
# leaf => non_dup
print 'orgState %d to currState %d' % (orgState, currState[0])
storage.deletePointer(setting, metadata)
coding.encodeFile(setting, metadata)
storage.uploadFileAndMetadata(setting, metadata, 'upload')
elif orgState == 1 and currState[0] == 0:
# org => non_dup
print 'orgState %d to currState %d' % (orgState, currState[0])
coding.encodeFile(setting, metadata)
storage.uploadFileAndMetadata(setting, metadata, 'upload')
dupFileName = storage.findOnePointer(setting, metadata)
dupMetadata = common.FileMetadata(dupFileName, 0,
setting.totalnode,
setting.coding)
storage.deletePointer(setting, dupMetadata)
coding.encodeFile(setting, dupMetadata)
storage.uploadFileAndMetadata(setting, dupMetadata, 'upload')
storage.updatePointers(setting, metadata, dupMetadata)
elif orgState == 1 and currState[0] == 1:
# org => leaf
print 'orgState %d to currState %d' % (orgState, currState[0])
deleteFile(setting, metadata)
storage.createPointer(setting, metadata, currState[1])
storage.uploadPointer(setting, metadata)
'''