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root/cvsroot/COMP/CRAB/python/DLSInfo.py
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Comparing COMP/CRAB/python/DLSInfo.py (file contents):
Revision 1.3 by afanfani, Sun Dec 11 18:51:17 2005 UTC vs.
Revision 1.24 by spiga, Tue Nov 18 11:06:20 2008 UTC

# Line 1 | Line 1
1   #!/usr/bin/env python
2   import sys, os, commands,string, re
3 + import exceptions
4 + 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   class DLSError:
13 <  def __init__(self, fileblocks):
14 <    print '\nERROR accessing DLS for fileblock '+fileblocks+'\n'
15 <    pass
13 >    def __init__(self, fileblocks):
14 >        print '\nERROR accessing DLS for fileblock '+fileblocks+'\n'
15 >        pass
16 >
17 >
18 > class DLSNoReplicas(exceptions.Exception):
19 >    def __init__(self, FileBlock):
20 >        self.args ="No replicas exists for fileblock: "+FileBlock+"\n"
21 >        exceptions.Exception.__init__(self, self.args)
22 >        pass
23 >
24 >    def getClassName(self):
25 >        """ Return class name. """
26 >        return "%s" % (self.__class__.__name__)
27 >
28 >    def getErrorMessage(self):
29 >        """ Return exception error. """
30 >        return "%s" % (self.args)
31 >
32  
33   ##############################################################################
34   # Class to extract info from DLS
35   ##############################################################################
36  
37   class DLSInfo:
38 <     def __init__(self, fileblocks):
39 <          self.fileblocks = fileblocks
40 <          self.DLSclient_ = 'DLSAPI/dls-get-se '
41 <          self.DLSServer_ = 'lxgate10.cern.ch'
42 <          self.DLSServerPort_ = '18081'
43 <          #self.DLSServerPort_ = '18080'
38 >    def __init__(self, type, cfg_params):
39 >        self.cfg_params = cfg_params
40 >        self.showCAF = False
41 >        if type=="DLS_TYPE_DBS":
42 >            # use dbs_url as dls_endpoint if dls_type is dbs
43 >            try:
44 >                endpoint=self.cfg_params['CMSSW.dbs_url']
45 >            except KeyError:
46 >                endpoint="http://cmsdbsprod.cern.ch/cms_dbs_prod_global/servlet/DBSServlet"
47 >        elif type=="DLS_TYPE_PHEDEX":
48 >            try:
49 >                endpoint=self.cfg_params['CMSSW.dls_phedex_url']
50 >            except KeyError:
51 >                endpoint='http://cmsweb.cern.ch/phedex/datasvc/xml/prod/'
52 >            if self.cfg_params['CRAB.scheduler'].upper() == 'CAF':  self.showCAF = True
53 >        else:
54 >            msg = "DLS type %s not among the supported DLS ( DLS_TYPE_DLI and DLS_TYPE_MYSQL ) "%type
55 >            raise CrabException(msg)
56 >        common.logger.debug(5,"DLS interface: %s Server %s"%(type,endpoint))      
57 >        try:
58 >            self.api = dlsClient.getDlsApi(dls_type=type,dls_endpoint=endpoint)
59 >        except dlsApi.DlsApiError, inst:
60 >            msg = "Error when binding the DLS interface: %s  Server %s"%(str(inst),endpoint)
61 >            #print msg
62 >            raise CrabException(msg)
63 >
64 >
65 >    def getReplicasBulk(self,fileblocks):
66 >        """
67 >        query DLS to get replicas
68 >        """
69 >        ##
70 >        try:
71 >            entryList=self.api.getLocations(fileblocks,longList=True)
72 >        except dlsApi.DlsApiError, inst:
73 >            raise DLSNoReplicas(fileblocks)
74 >        results = {}
75 >        for entry in entryList:
76 >            ListSites=[]
77 >            for loc in entry.locations:
78 >                ListSites.append(str(loc.host))
79 >            if len(ListSites)<=0:
80 >                raise DLSNoReplicas(fileblocks)
81 >            results[entry.fileBlock.name]=ListSites
82  
83 +        return results        
84   # ####################################
85 <     def getReplicas(self):
86 <         """
87 <          query DLS to get replicas
88 <         """
89 <         ##
90 <         cmd = self.DLSclient_+" --port "+self.DLSServerPort_+" --host "+self.DLSServer_+" --datablock "+self.fileblocks
91 <         sites = runCommand(cmd)
92 <         ListSites=string.split(string.strip(sites),'\n')
93 <         return ListSites        
85 >    def getReplicas(self,fileblocks):
86 >        """
87 >        query DLS to get replicas
88 >        """
89 >        ##
90 >        try:
91 >            entryList=self.api.getLocations([fileblocks],showCAF=self.showCAF)
92 >        except dlsApi.DlsApiError, inst:
93 >            raise DLSNoReplicas(fileblocks)
94 >
95 >        ListSites=[]
96 >        for entry in entryList:
97 >            for loc in entry.locations:
98 >                ListSites.append(str(loc.host))
99 >        if len(ListSites)<=0:
100 >            raise DLSNoReplicas(fileblocks)
101 >
102 >        return ListSites        

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