CRAB/python/DLSInfo.py

#!/usr/bin/env python
import sys, os, commands,string, re
import exceptions
from crab_exceptions import *
from crab_util import *
import common

import dlsApi
import dlsClient
from dlsDataObjects import DlsLocation, DlsFileBlock, DlsEntry
                                                                                            
# ## for python 2.2 add the pyexpat.so to PYTHONPATH
# pythonV=sys.version.split(' ')[0]
# if pythonV.find('2.2') >= 0 :
#     Crabpydir=commands.getoutput('which crab')
#     Topdir=string.replace(Crabpydir,'/python/crab','')
#     extradir=Topdir+'/DLSAPI/extra'
#     if sys.path.count(extradir) <= 0:
#          if os.path.exists(extradir):
#             sys.path.insert(0, extradir)


class DLSError:
    def __init__(self, fileblocks):
        print '\nERROR accessing DLS for fileblock '+fileblocks+'\n'
        pass


class DLSNoReplicas(exceptions.Exception):
    def __init__(self, FileBlock):
        self.args ="No replicas exists for fileblock: "+FileBlock+"\n"
        exceptions.Exception.__init__(self, self.args)
        pass

    def getClassName(self):
        """ Return class name. """
        return "%s" % (self.__class__.__name__)

    def getErrorMessage(self):
        """ Return exception error. """
        return "%s" % (self.args)


##############################################################################
# Class to extract info from DLS 
##############################################################################

class DLSInfo:
    def __init__(self, type, cfg_params):
        self.cfg_params = cfg_params
        if type=="DLS_TYPE_DBS":
            #
            # use dbs_url as dls_endpoint if dls_type is dbs
            #
            try:
                endpoint=self.cfg_params['CMSSW.dbs_url']
            except KeyError:
                endpoint="http://cmsdbsprod.cern.ch/cms_dbs_prod_global/servlet/DBSServlet"
        else:
            msg = "DLS type %s not among the supported DLS ( DLS_TYPE_DLI and DLS_TYPE_MYSQL ) "%type
            raise CrabException(msg)

        common.logger.debug(5,"DLS interface: %s Server %s"%(type,endpoint))       
        try:
            self.api = dlsClient.getDlsApi(dls_type=type,dls_endpoint=endpoint)
        except dlsApi.DlsApiError, inst:
            msg = "Error when binding the DLS interface: %s  Server %s"%(str(inst),endpoint)
            #print msg
            raise CrabException(msg)
 
# ####################################
    def getReplicas(self,fileblocks):
        """
        query DLS to get replicas
        """
        ##
        try:
            entryList=self.api.getLocations([fileblocks])
        except dlsApi.DlsApiError, inst:
            #msg = "Error in the DLS query: %s." % str(inst)
            #print msg
            raise DLSNoReplicas(fileblocks)

        ListSites=[] 
        for entry in entryList:
            for loc in entry.locations:
                ListSites.append(str(loc.host))
        if len(ListSites)<=0:
            raise DLSNoReplicas(fileblocks)

        return ListSites         
Revision:	1.18
Committed:	Fri Nov 16 11:09:31 2007 UTC (17 years, 5 months ago) by slacapra
Content type:	text/x-python
Branch:	MAIN
CVS Tags:	CRAB_2_4_0_test, CRAB_2_3_1, CRAB_2_3_1_pre6, CRAB_2_3_1_pre5, CRAB_2_3_1_pre4, CRAB_2_3_1_pre3, CRAB_2_3_1_pre2, CRAB_2_3_1_pre1, CRAB_2_3_0, CRAB_2_3_0_pre6, CRAB_2_3_0_pre1, CRAB_2_2_2_pre5, CRAB_2_2_2_pre4, CRAB_2_2_2_pre3, CRAB_2_2_2_pre2, CRAB_2_2_2_pre1, CRAB_2_2_1, CRAB_2_2_1_pre6, CRAB_2_2_1_pre5, CRAB_2_2_1_pre4, PRODCOMMON_0_10_7_testCS2, CRAB_2_2_1_pre3, CRAB_2_2_1_pre2, CRAB_2_2_1_pre1, CRAB_2_2_0, CRAB_2_2_0_pre21, CRAB_2_2_0_pre19, CRAB_2_2_0_pre18, CRAB_2_2_0_pre17, CRAB_2_2_0_pre16, CRAB_2_2_0_pre15, CRAB_2_2_0_pre13, CRAB_2_2_0_pre12, CRAB_2_2_0_pre11, CRAB_2_2_0_pre10, bp_osg_bdii, CRAB_2_2_0_pre9, CRAB_2_2_0_pre8, CRAB_2_2_0_pre7, CRAB_2_1_2, CRAB_2_2_0_pre5, CRAB_2_1_2_pre2, CRAB_2_1_2_pre1, CRAB_2_2_0_pre4, CRAB_2_2_0_pre2, CRAB_2_1_1, CRAB_2_1_1_pre3, CRAB_2_2_0_pre1, CRAB_2_1_1_pre1, CRAB_2_1_0, CRAB_2_1_0_pre6, CRAB_2_1_0_pre5, CRAB_2_1_0_pre4, CRAB_2_1_0_pre3, CRAB_2_1_0_pre2, CRAB_2_1_0_pre1, CRAB_2_0_4, CRAB_2_0_4_pre2, CRAB_2_0_4_pre1, CRAB_2_0_3, CRAB_2_0_3_pre1, CRAB_2_0_2, CRAB_2_0_2_pre6
Branch point for:	CRAB_2_3_0_br, osg_bdii, CRAB_2_1_2_br, CRAB_2_1_1_pre2
Changes since 1.17:	+10 -34 lines
Log Message:	remove support for DBS1, and remove DBS2 string from files/class
#	User	Rev	Content
1	afanfani	1.1	#!/usr/bin/env python
2			import sys, os, commands,string, re
3	afanfani	1.4	import exceptions
4			from crab_exceptions import *
5	afanfani	1.1	from crab_util import *
6			import common
7
8	slacapra	1.14	import dlsApi
9			import dlsClient
10			from dlsDataObjects import DlsLocation, DlsFileBlock, DlsEntry
11	afanfani	1.7
12	slacapra	1.18	# ## 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	afanfani	1.6
22
23	afanfani	1.1	class DLSError:
24	slacapra	1.5	def __init__(self, fileblocks):
25			print '\nERROR accessing DLS for fileblock '+fileblocks+'\n'
26			pass
27	afanfani	1.1
28	afanfani	1.4
29			class DLSNoReplicas(exceptions.Exception):
30	slacapra	1.5	def __init__(self, FileBlock):
31	spiga	1.15	self.args ="No replicas exists for fileblock: "+FileBlock+"\n"
32	slacapra	1.14	exceptions.Exception.__init__(self, self.args)
33	slacapra	1.5	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	afanfani	1.4
43	afanfani	1.6
44	afanfani	1.1	##############################################################################
45			# Class to extract info from DLS
46			##############################################################################
47
48			class DLSInfo:
49	mkirn	1.11	def __init__(self, type, cfg_params):
50			self.cfg_params = cfg_params
51	slacapra	1.18	if type=="DLS_TYPE_DBS":
52	gutsche	1.17	#
53			# use dbs_url as dls_endpoint if dls_type is dbs
54			#
55	gutsche	1.16	try:
56	gutsche	1.17	endpoint=self.cfg_params['CMSSW.dbs_url']
57	gutsche	1.16	except KeyError:
58			endpoint="http://cmsdbsprod.cern.ch/cms_dbs_prod_global/servlet/DBSServlet"
59	afanfani	1.6	else:
60	gutsche	1.10	msg = "DLS type %s not among the supported DLS ( DLS_TYPE_DLI and DLS_TYPE_MYSQL ) "%type
61			raise CrabException(msg)
62	afanfani	1.6
63	afanfani	1.9	common.logger.debug(5,"DLS interface: %s Server %s"%(type,endpoint))
64	afanfani	1.6	try:
65	gutsche	1.10	self.api = dlsClient.getDlsApi(dls_type=type,dls_endpoint=endpoint)
66	afanfani	1.6	except dlsApi.DlsApiError, inst:
67	slacapra	1.14	msg = "Error when binding the DLS interface: %s Server %s"%(str(inst),endpoint)
68	gutsche	1.10	#print msg
69			raise CrabException(msg)
70
71	afanfani	1.1	# ####################################
72	afanfani	1.6	def getReplicas(self,fileblocks):
73	slacapra	1.5	"""
74			query DLS to get replicas
75			"""
76			##
77	afanfani	1.6	try:
78	gutsche	1.10	entryList=self.api.getLocations([fileblocks])
79	afanfani	1.6	except dlsApi.DlsApiError, inst:
80	slacapra	1.14	#msg = "Error in the DLS query: %s." % str(inst)
81	gutsche	1.10	#print msg
82			raise DLSNoReplicas(fileblocks)
83	afanfani	1.6
84			ListSites=[]
85			for entry in entryList:
86	gutsche	1.10	for loc in entry.locations:
87			ListSites.append(str(loc.host))
88	afanfani	1.6	if len(ListSites)<=0:
89	gutsche	1.10	raise DLSNoReplicas(fileblocks)
90	afanfani	1.4
91	slacapra	1.5	return ListSites