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root/cvsroot/COMP/CRAB/python/DLSInfo.py
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Comparing COMP/CRAB/python/DLSInfo.py (file contents):
Revision 1.4 by afanfani, Sun Jan 29 01:46:08 2006 UTC vs.
Revision 1.18 by slacapra, Fri Nov 16 11:09:31 2007 UTC

# Line 5 | Line 5 | from crab_exceptions import *
5   from crab_util import *
6   import common
7  
8 + import dlsApi
9 + import dlsClient
10 + from dlsDataObjects import DlsLocation, DlsFileBlock, DlsEntry
11 +                                                                                            
12 + # ## for python 2.2 add the pyexpat.so to PYTHONPATH
13 + # pythonV=sys.version.split(' ')[0]
14 + # if pythonV.find('2.2') >= 0 :
15 + #     Crabpydir=commands.getoutput('which crab')
16 + #     Topdir=string.replace(Crabpydir,'/python/crab','')
17 + #     extradir=Topdir+'/DLSAPI/extra'
18 + #     if sys.path.count(extradir) <= 0:
19 + #          if os.path.exists(extradir):
20 + #             sys.path.insert(0, extradir)
21 +
22 +
23   class DLSError:
24 <  def __init__(self, fileblocks):
25 <    print '\nERROR accessing DLS for fileblock '+fileblocks+'\n'
26 <    pass
24 >    def __init__(self, fileblocks):
25 >        print '\nERROR accessing DLS for fileblock '+fileblocks+'\n'
26 >        pass
27  
28  
29   class DLSNoReplicas(exceptions.Exception):
30 <  def __init__(self, FileBlock):
31 <    args ="No replicas exists for fileblock: "+FileBlock+"\n"
32 <    exceptions.Exception.__init__(self, args)
33 <    pass
34 <
35 <  def getClassName(self):
36 <    """ Return class name. """
37 <    return "%s" % (self.__class__.__name__)
38 <
39 <  def getErrorMessage(self):
40 <    """ Return exception error. """
41 <    return "%s" % (self.args)
30 >    def __init__(self, FileBlock):
31 >        self.args ="No replicas exists for fileblock: "+FileBlock+"\n"
32 >        exceptions.Exception.__init__(self, self.args)
33 >        pass
34 >
35 >    def getClassName(self):
36 >        """ Return class name. """
37 >        return "%s" % (self.__class__.__name__)
38 >
39 >    def getErrorMessage(self):
40 >        """ Return exception error. """
41 >        return "%s" % (self.args)
42 >
43  
44   ##############################################################################
45   # Class to extract info from DLS
46   ##############################################################################
47  
48   class DLSInfo:
49 <     def __init__(self, fileblocks):
50 <          self.fileblocks = fileblocks
51 <          self.DLSclient_ = 'dls-get-se '
52 <          self.DLSServer_ = 'lxgate10.cern.ch'
53 <          self.DLSServerPort_ = '18081'
54 <          #self.DLSServerPort_ = '18080'
55 <          
56 <          out=commands.getstatusoutput('which '+self.DLSclient_)
57 <          if out[0]>0:
58 <             msg="ERROR no DLS CLI available in $PATH : %s"%self.DLSclient_
59 <             raise CrabException(msg)
60 <
49 >    def __init__(self, type, cfg_params):
50 >        self.cfg_params = cfg_params
51 >        if type=="DLS_TYPE_DBS":
52 >            #
53 >            # use dbs_url as dls_endpoint if dls_type is dbs
54 >            #
55 >            try:
56 >                endpoint=self.cfg_params['CMSSW.dbs_url']
57 >            except KeyError:
58 >                endpoint="http://cmsdbsprod.cern.ch/cms_dbs_prod_global/servlet/DBSServlet"
59 >        else:
60 >            msg = "DLS type %s not among the supported DLS ( DLS_TYPE_DLI and DLS_TYPE_MYSQL ) "%type
61 >            raise CrabException(msg)
62 >
63 >        common.logger.debug(5,"DLS interface: %s Server %s"%(type,endpoint))      
64 >        try:
65 >            self.api = dlsClient.getDlsApi(dls_type=type,dls_endpoint=endpoint)
66 >        except dlsApi.DlsApiError, inst:
67 >            msg = "Error when binding the DLS interface: %s  Server %s"%(str(inst),endpoint)
68 >            #print msg
69 >            raise CrabException(msg)
70 >
71   # ####################################
72 <     def getReplicas(self):
73 <         """
74 <          query DLS to get replicas
75 <         """
76 <         ##
77 <         cmd = self.DLSclient_+" --port "+self.DLSServerPort_+" --host "+self.DLSServer_+" --datablock "+self.fileblocks
78 <         #print cmd
79 <         sites = runCommand(cmd)
80 <         sites=string.strip(sites)
81 <         if len(sites)<=0:
82 <           raise DLSNoReplicas(self.fileblocks)
72 >    def getReplicas(self,fileblocks):
73 >        """
74 >        query DLS to get replicas
75 >        """
76 >        ##
77 >        try:
78 >            entryList=self.api.getLocations([fileblocks])
79 >        except dlsApi.DlsApiError, inst:
80 >            #msg = "Error in the DLS query: %s." % str(inst)
81 >            #print msg
82 >            raise DLSNoReplicas(fileblocks)
83 >
84 >        ListSites=[]
85 >        for entry in entryList:
86 >            for loc in entry.locations:
87 >                ListSites.append(str(loc.host))
88 >        if len(ListSites)<=0:
89 >            raise DLSNoReplicas(fileblocks)
90  
91 <         ListSites=string.split(string.strip(sites),'\n')
59 <         return ListSites        
91 >        return ListSites        

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