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#!/usr/bin/env python
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import sys, os, string, re
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sys.path.append('./DBSAPI')
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import dbsCgiApi
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import dbsApi
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class DBSError:
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def __init__(self, dbspath):
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print '\nERROR accessing DBS for dataset '+dbspath+'\n'
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pass
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class DBSInfoError:
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def __init__(self, url):
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print '\nERROR accessing DBS url : '+url+'\n'
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pass
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##################################################################################
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# Class to extract info from DBS
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###############################################################################
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class DBSInfo:
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def __init__(self, dbspath, dataTiers):
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self.dbspath=dbspath
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self.dataTiers = dataTiers
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self.api = dbsCgiApi.DbsCgiApi(cgiUrl="http://cern.ch/cms-dbs/cgi-bin")
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# self.api.setLogLevel(dbsApi.DBS_LOG_LEVEL_ALL_)
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# ####################################
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def getDatasetProvenance(self):
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"""
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query DBS to get provenance
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"""
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try:
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datasetParentList = self.api.getDatasetProvenance(self.dbspath,self.dataTiers)
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except dbsCgiApi.DbsCgiApiException:
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raise DBSError(self.dbspath)
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return datasetParentList
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# ####################################
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def getDatasetContents(self):
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"""
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query DBS to get event collections
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"""
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try:
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fileBlockList = self.api.getDatasetContents(self.dbspath)
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except dbsCgiApi.DbsCgiApiException:
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raise DBSError(self.dbspath)
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## get the fileblock and event collections
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nevtsbyblock= {}
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for fileBlock in fileBlockList:
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## get the event collections for each block
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print "DBSInfo: --- block: "+fileBlock.getBlockName()
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eventCollectionList = fileBlock.getEventCollectionList()
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nevts=0
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for eventCollection in eventCollectionList:
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#print "DBSInfo: evc: "+eventCollection.getCollectionName()+" nevts: %i"%eventCollection.getNumberOfEvents()
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nevts=nevts+eventCollection.getNumberOfEvents()
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print "DBSInfo: total nevts %i in block %s "%(nevts,fileBlock.getBlockName())
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#common.logger.debug(6,"DBSInfo: total nevts %i in block %s "%(nevts,fileBlock.getBlockName()))
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nevtsbyblock[fileBlock.getBlockName()]=nevts
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# returning a map of fileblock-nevts will be enough for now
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# TODO: in future the EvC collections grouped by fileblock should be returned
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return nevtsbyblock
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