class SnapshotFile (AbstractMibInstrumController):
openedQueue = []
maxQueueEntries = 15 # max number of open text and index files
def __init__(self, textFile, textParser):
self.__textParser = textParser
self.__textFile = textFile
self._db = Database(self.__textFile, self.__textParser)
def indexText(self):
self._db.create()
return self
def close(self):
self._db.close()
def openDb(self):
if not self._db.isOpen():
if len(SnapshotFile.openedQueue) > self.maxQueueEntries:
SnapshotFile.openedQueue[0].close()
del SnapshotFile.openedQueue[0]
SnapshotFile.openedQueue.append(self)
self._db.open()
def processVarBinds(self, varBinds, nextFlag=False, setFlag=False):
self.openDb()
rspVarBinds = []
for oid,_ in varBinds:
textOid = str( univ.OctetString( oid2str(oid) ) )
if nextFlag:
try:
(_oid, _, _tag, _val) = self._db.lookup_next( textOid )
subtreeFlag = False
except KeyError:
rspVarBinds.append((oid, exval.endOfMib))
continue
else:
try:
(_oid, subtreeFlag, _tag, _val) = self._db.lookup( textOid )
subtreeFlag, int(subtreeFlag), True
except KeyError:
rspVarBinds.append((oid, exval.noSuchInstance))
continue
# _oid = parser.evaluateOid(_oid)
# _,_,_val = parser.evaluateValue(_oid,_tag,_val)
rspVarBinds.append ( ( _oid, _val ) )
return rspVarBinds
def __str__(self):
return str(self._db)
def database_gc(self):
""" Remove database that are not up to date """
try:
# We try, if we cannot this is maybe because the db is loaded and will be refreshed by its owner
for conf in searchFiles(confdir.cache, lambda _,ext: ext in ['db', 'dbm'] ):
if not Database.isDbUpToDate ( conf ):
logger.info ( 'Cleaning obsolete database %s', conf );
os.remove(conf)
continue
except:
logger.warning ( 'Database cannot be cleaned %s', sys.exc_info()[1] );
def __init__(self, textFile, textParser):
self.__textParser = textParser
self.__textFile = textFile
self._db = Database(self.__textFile, self.__textParser)
# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
# GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#
# Description: Dump the content of the index database in readable form
#
from agentcluster import __version__, confdir, searchFiles
from agentcluster.database import Database
import os
import argparse
import agentcluster
import logging.config
logger = logging.getLogger('agentcluster.dbdump')
default_log_file = os.path.join ( agentcluster.__path__[0], "agentcluster-log-console.conf")
logging.config.fileConfig( default_log_file )
parser = argparse.ArgumentParser(description='SNMP Cluster of agents, by Gilles Bouissac. version %s'%__version__, formatter_class=argparse.RawDescriptionHelpFormatter)
parser.add_argument( '-c', '--cache-dir', metavar='<cache-dir>', default=confdir.cache, help='Path to a directory that contain application cache. default: %(default)s' )
options = parser.parse_args()
if options.cache_dir:
confdir.cache = options.cache_dir;
# Browses databases:
db = Database( "", None )
for dbfile in searchFiles( [confdir.cache] ):
db.dump_from_file(dbfile)
