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 1.17 by gutsche, Thu May 24 17:59:26 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_DLI":
52 >            try:
53 >                endpoint=self.cfg_params['CMSSW.dls_endpoint']
54 >            except KeyError:
55 >                endpoint="prod-lfc-cms-central.cern.ch/grid/cms/DLS/LFC"
56 >
57 >            try:
58 >                import xml.dom.ext.reader
59 >            except:
60 >                crabdir=os.getenv('CRABDIR')
61 > ## Let the  user set up PyXML by hand
62 >                msg="There is no setup of PyXML python module required by DLS (DLI). Do the following:\n"
63 >                msg+=" - check that in  %s/configure  the function configureDLSAPI is not commented \n"%crabdir
64 >                msg+=" - uncomment it and re-run the configuration :"
65 >                msg+="\n    cd %s\n"%crabdir
66 >                msg+="     ./configure\n"
67 >                msg+="     source crab.(c)sh\n"
68 >                raise CrabException(msg)
69 >
70 >        elif type=="DLS_TYPE_MYSQL":
71 >            try:
72 >                endpoint=self.cfg_params['CMSSW.dls_endpoint']
73 >            except KeyError:
74 >                endpoint="lxgate10.cern.ch:18081"
75 >        elif type=="DLS_TYPE_DBS":
76 >            #
77 >            # use dbs_url as dls_endpoint if dls_type is dbs
78 >            #
79 >            try:
80 >                endpoint=self.cfg_params['CMSSW.dbs_url']
81 >            except KeyError:
82 >                endpoint="http://cmsdbsprod.cern.ch/cms_dbs_prod_global/servlet/DBSServlet"
83 >        else:
84 >            msg = "DLS type %s not among the supported DLS ( DLS_TYPE_DLI and DLS_TYPE_MYSQL ) "%type
85              raise CrabException(msg)
86  
87 +        common.logger.debug(5,"DLS interface: %s Server %s"%(type,endpoint))      
88 +        try:
89 +            self.api = dlsClient.getDlsApi(dls_type=type,dls_endpoint=endpoint)
90 +        except dlsApi.DlsApiError, inst:
91 +            msg = "Error when binding the DLS interface: %s  Server %s"%(str(inst),endpoint)
92 +            #print msg
93 +            raise CrabException(msg)
94 +
95   # ####################################
96 <    def getReplicas(self):
96 >    def getReplicas(self,fileblocks):
97          """
98          query DLS to get replicas
99          """
100          ##
101 <        cmd = self.DLSclient_+" --port "+self.DLSServerPort_+" --host "+self.DLSServer_+" --datablock "+self.fileblocks
102 <        #print cmd
103 <        sites = runCommand(cmd)
104 <        sites=string.strip(sites)
105 <        if len(sites)<=0:
106 <            raise DLSNoReplicas(self.fileblocks)
101 >        try:
102 >            entryList=self.api.getLocations([fileblocks])
103 >        except dlsApi.DlsApiError, inst:
104 >            #msg = "Error in the DLS query: %s." % str(inst)
105 >            #print msg
106 >            raise DLSNoReplicas(fileblocks)
107 >
108 >        ListSites=[]
109 >        for entry in entryList:
110 >            for loc in entry.locations:
111 >                ListSites.append(str(loc.host))
112 >        if len(ListSites)<=0:
113 >            raise DLSNoReplicas(fileblocks)
114  
58        ListSites=string.split(string.strip(sites),'\n')
115          return ListSites        

Diff Legend

Removed lines
+ Added lines
< Changed lines
> Changed lines