ViewVC Help
View File | Revision Log | Show Annotations | Root Listing
root/cvsroot/COMP/CRAB/python/DLSInfo.py
(Generate patch)

Comparing COMP/CRAB/python/DLSInfo.py (file contents):
Revision 1.5 by slacapra, Tue Mar 28 11:25:39 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'
# Line 13 | Line 28 | class DLSError:
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)
31 >        self.args ="No replicas exists for fileblock: "+FileBlock+"\n"
32 >        exceptions.Exception.__init__(self, self.args)
33          pass
34  
35      def getClassName(self):
# Line 25 | Line 40 | class DLSNoReplicas(exceptions.Exception
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_
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):
72 >    def getReplicas(self,fileblocks):
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)
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  
58        ListSites=string.split(string.strip(sites),'\n')
91          return ListSites        

Diff Legend

Removed lines
+ Added lines
< Changed lines
> Changed lines