CRAB/python/PhEDExDatasvcInfo.py

from Actor import *
import urllib
from xml.dom.minidom import parse
from crab_exceptions import *
from WorkSpace import *
from urlparse import urlparse 
from LFNBaseName import *

class PhEDExDatasvcInfo:
    def __init__( self , cfg_params=None, config=None ):
 
        ## PhEDEx Data Service URL
        self.datasvc_url="https://cmsweb.cern.ch/phedex/datasvc/xml/prod"

        self.FacOps_savannah = 'https://savannah.cern.ch/support/?func=additem&group=cmscompinfrasup'
        stage_out_faq='https://twiki.cern.ch/twiki/bin/view/CMS/SWGuideCrabHowTo#Stageout_and_publication' 
        self.dataPub_faq = 'https://twiki.cern.ch/twiki/bin/view/CMS/SWGuideCrabForPublication'

        self.usePhedex = True 
        self.sched = common.scheduler.name().upper() 

        if config!=None:
            self.checkConfig(config)  
        else:
            self.checkCfgConfig(cfg_params)  

        self.protocol = self.srm_version
 

    def checkConfig(self,config):
        """
        """
        self.srm_version = config.get("srm_version",'srmv2')
        self.node = config.get('storage_element',None)
        self.lfn='/store/'

    def checkCfgConfig(self,cfg_params):
        """
        """
        self.datasvc_url = cfg_params.get("USER.datasvc_url",self.datasvc_url)
        self.srm_version = cfg_params.get("USER.srm_version",'srmv2')
        self.node = cfg_params.get('USER.storage_element',None)

        self.publish_data = cfg_params.get("USER.publish_data",0)
        self.usenamespace = cfg_params.get("USER.usenamespace",0)
        self.user_remote_dir = cfg_params.get("USER.user_remote_dir",'')
        if self.user_remote_dir:
            if ( self.user_remote_dir[-1] != '/' ) : self.user_remote_dir = self.user_remote_dir + '/'
          
        self.datasetpath = cfg_params.get("CMSSW.datasetpath")
        self.publish_data_name = cfg_params.get('USER.publish_data_name','')

        self.user_port = cfg_params.get("USER.storage_port",'8443')
        self.user_se_path = cfg_params.get("USER.storage_path",'')
        if self.user_se_path:
            if ( self.user_se_path[-1] != '/' ) : self.user_se_path = self.user_se_path + '/'
                                                    
        #check if using "private" Storage
        if not self.node :
            msg = 'Please specify the storage_element name in your crab.cfg section [USER].\n'
            msg +='\tFor further information please visit : %s'%stage_out_faq 
            raise CrabException(msg)
        if (self.node.find('T1_') + self.node.find('T2_')+self.node.find('T3_')) == -3: self.usePhedex = False 

        if not self.usePhedex and ( self.user_remote_dir == '' or self.user_se_path == '' ):
            msg = 'You are asking to stage out without using CMS Storage Name convention. In this case you \n' 
            msg += '\t must specify both user_remote_dir and storage_path in the crab.cfg section [USER].\n '
            msg += '\t For further information please visit : \n\t%s'%stage_out_faq
            raise CrabException(msg)

        self.forced_path = '/store/user/'
        if self.sched in ['CAF','LSF','PBS']:
            self.srm_version = 'direct'
            self.SE = {'CAF':'caf.cern.ch', 'LSF':'', 'PBS':''}
            if self.sched == 'CAF': self.forced_path = '/store/caf/user/'
            
        if not self.usePhedex: 
            self.forced_path = self.user_remote_dir
        return
 
    def getEndpoint(self):   
        '''
        Return full SE endpoint and related infos
        '''
        self.lfn = self.getLFN()
 
        #extract the PFN for the given node,LFN,protocol
        endpoint = self.getStageoutPFN()
        ### FEDE added a check for the final / 
        if ( endpoint[-1] != '/' ) : endpoint = endpoint + '/'
        ######################################
   
        #extract SE name an SE_PATH (needed for publication)
        SE, SE_PATH, User = self.splitEndpoint(endpoint)

        return endpoint, self.lfn , SE, SE_PATH, User         
       
    def splitEndpoint(self, endpoint):
        '''
        Return relevant infos from endpoint  
        '''
        SE = ''
        SE_PATH = ''
        USER = ''
        if self.usePhedex: 
            if self.protocol == 'direct':
                query=endpoint
                SE_PATH = endpoint
                SE = self.SE[self.sched]
            else: 
                url = 'http://'+endpoint.split('://')[1]
                # python > 2.4
                # SE = urlparse(url).hostname 
                scheme, host, path, params, query, fragment = urlparse(url)
             #   SE = host.split(':')[0]
                SE = self.getAuthoritativeSE()
                SE_PATH = endpoint.split(host)[1]
            USER = (query.split('user')[1]).split('/')[1]
        else:
            #### to test #####
           # url = 'http://'+endpoint.split('://')[1]
           # scheme, host, path, params, query, fragment = urlparse(url)
           # SE = host.split(':')[0]
           # SE_PATH = endpoint.split(host)[1]
            SE = self.node
            SE_PATH = self.user_se_path + self.user_remote_dir 
            if self.lfn.find('user'):
                try:
                    USER = (self.lfn.split('user')[1]).split('/')[1]
                except:
                    pass
            if self.lfn.find('group'):
                try:
                    USER = (self.lfn.split('group')[1]).split('/')[1]
                except:
                    pass
        return SE, SE_PATH, USER 
   

    def getLFN(self):
        """
        define the LFN composing the needed pieces
        """
        lfn = ''
        l_User = False
        if not self.usePhedex and (int(self.publish_data) == 0 and int(self.usenamespace) == 0) :
            ### add here check if user is trying to force a wrong LFN using a T2  TODO
            ## check if storage_name is a T2 (siteDB query)
            ## if yes :match self.user_lfn with LFNBaseName...
            ##     if NOT : raise (you are using a T2. It's not allowed stage out into self.user_path+self.user_lfn)   
            lfn = self.user_remote_dir
            return lfn
        if self.publish_data_name == '' and int(self.publish_data) == 1:
            msg = "Error. The [USER] section does not have 'publish_data_name'\n"
            msg += '\tFor further information please visit : \n\t%s'%self.dataPub_faq
            raise CrabException(msg)
        if self.publish_data_name == '' and int(self.usenamespace) == 1:
           self.publish_data_name = "DefaultDataset"
        if int(self.publish_data) == 1:
            if self.sched in ['CAF']: l_User=True 
            primaryDataset = self.computePrimaryDataset()
            ### added the case lfn = LFNBase(self.forced_path, primaryDataset, self.publish_data_name, publish=True)
            ### for the publication in order to be able to check the lfn length  
            lfn = LFNBase(self.forced_path, primaryDataset, self.publish_data_name, publish=True)  + '/${PSETHASH}/'    
        elif int(self.usenamespace) == 1:
            if self.sched in ['CAF']: l_User=True 
            primaryDataset = self.computePrimaryDataset()
            lfn = LFNBase(self.forced_path, primaryDataset, self.publish_data_name)  + '/${PSETHASH}/'    
        else:
            if self.sched in ['CAF','LSF']: l_User=True 
            lfn = LFNBase(self.forced_path,self.user_remote_dir)
        return lfn
 
    def computePrimaryDataset(self):
        """
        compute the last part for the LFN in case of publication     
        """
        if (self.datasetpath.upper() != 'NONE'):
            primarydataset = self.datasetpath.split("/")[1]
        else:
            primarydataset = self.publish_data_name
        return primarydataset
    
    def domPhedex(self,params,datasvc_baseUrl):
        """
        PhEDEx Data Service lfn2pfn call
 
        input:   params,datasvc_baseUrl
        returns: DOM object with the content of the PhEDEx Data Service call
        """  
        params = urllib.urlencode(params)
        try:
            urlresults = urllib.urlopen(datasvc_baseUrl, params)
            urlresults = parse(urlresults)
        except IOError:
            msg="Unable to access PhEDEx Data Service at %s"%datasvc_baseUrl
            raise CrabException(msg)
        except:
            urlresults = None

        return urlresults
 
    def parse_error(self,urlresults):
        """
        look for errors in the DOM object returned by PhEDEx Data Service call
        """
        errormsg = None 
        errors=urlresults.getElementsByTagName('error')
        for error in errors:
            errormsg=error.childNodes[0].data
            if len(error.childNodes)>1:
               errormsg+=error.childNodes[1].data
        return errormsg
 
    def parse_lfn2pfn(self,urlresults):
        """
        Parse the content of the result of lfn2pfn PhEDEx Data Service  call
 
        input:    DOM object with the content of the lfn2pfn call
        returns:  PFN  
        """
        result = urlresults.getElementsByTagName('phedex')
               
        if not result:
              return []
        result = result[0]
        pfn = None
        mapping = result.getElementsByTagName('mapping')
        for m in mapping:
            pfn=m.getAttribute("pfn")
            if pfn:
              return pfn
 
    def getStageoutPFN( self ):
        """
        input:   LFN,node name,protocol
        returns: PFN 
        """
        if self.usePhedex:
            params = {'node' : self.node , 'lfn': self.lfn , 'protocol': self.protocol}
            datasvc_lfn2pfn="%s/lfn2pfn"%self.datasvc_url
            fullurl="%s/lfn2pfn?node=%s&lfn=%s&protocol=%s"%(self.datasvc_url,self.node,self.lfn,self.protocol) 
            domlfn2pfn = self.domPhedex(params,datasvc_lfn2pfn)
            if not domlfn2pfn :
                msg="Unable to get info from %s"%fullurl
                raise CrabException(msg)
  
            errormsg = self.parse_error(domlfn2pfn)
            if errormsg: 
                msg="Error extracting info from %s due to: %s"%(fullurl,errormsg)
                raise CrabException(msg)
  
            stageoutpfn = self.parse_lfn2pfn(domlfn2pfn)
            if not stageoutpfn:
                msg ='Unable to get stageout path from TFC at Site %s \n'%self.node
                msg+='      Please alert the CompInfraSup group through their savannah %s \n'%self.FacOps_savannah
                msg+='      reporting: \n'
                msg+='       Summary: Unable to get user stageout from TFC at Site %s \n'%self.node
                msg+='       OriginalSubmission: stageout path is not retrieved from %s \n'%fullurl
                raise CrabException(msg)
        else:
            if self.sched in ['CAF','LSF','PBS'] :
                stageoutpfn = self.user_se_path+self.lfn 
            else: 
                stageoutpfn = 'srm://'+self.node+':'+self.user_port+self.user_se_path+self.lfn 

        return stageoutpfn 

    def getAuthoritativeSE(self):
        """
        input:   node name
        returns: AuthoritativeSE 
        """
        params = {'node' : self.node }
        datasvc_nodes="%s/nodes"%self.datasvc_url
        fullurl="%s/nodes/?node=%s"%(self.datasvc_url,self.node) 
        domnodes = self.domPhedex(params,datasvc_nodes)

        if not domnodes :
            msg="Unable to get info from %s"%fullurl
            raise CrabException(msg)

        errormsg = self.parse_error(domnodes)
        if errormsg: 
            msg="Error extracting info from %s due to: %s"%(fullurl,errormsg)
            raise CrabException(msg)
        result = domnodes.getElementsByTagName('phedex')
        if not result:
              return []
        result = result[0]
        se = None
        node = result.getElementsByTagName('node')
        for m in node:
            se=m.getAttribute("se")
            if se:
                return se


if __name__ == '__main__':
  """
  Sort of unit testing to check Phedex API for whatever site and/or lfn.
  Usage:
     python PhEDExDatasvcInfo.py --node T2_IT_Bari --lfn /store/maremma

  """
  import getopt,sys
  from crab_util import *
  import common
  klass_name = 'SchedulerGlite'
  klass = importName(klass_name, klass_name)
  common.scheduler = klass()

  lfn="/store/user/"
  node='T2_IT_Bari'
  valid = ['node=','lfn=']
  try:
       opts, args = getopt.getopt(sys.argv[1:], "", valid)
  except getopt.GetoptError, ex:
       print str(ex)
       sys.exit(1)
  for o, a in opts:
        if o == "--node":
            node = a
        if o == "--lfn":
            lfn = a
  
  mycfg_params = { 'USER.storage_element': node }
  dsvc = PhEDExDatasvcInfo(mycfg_params)
  dsvc.lfn = lfn
  print dsvc.getStageoutPFN()

Revision:	1.33
Committed:	Tue Nov 24 00:13:02 2009 UTC (15 years, 5 months ago) by spiga
Content type:	text/x-python
Branch:	MAIN
Changes since 1.32:	+37 -8 lines
Log Message:	publishing data crab must fill DBS with Authoritative SE hostname
#	User	Rev	Content
1	spiga	1.3	from Actor import *
2	afanfani	1.1	import urllib
3			from xml.dom.minidom import parse
4			from crab_exceptions import *
5	spiga	1.3	from WorkSpace import *
6			from urlparse import urlparse
7			from LFNBaseName import *
8	afanfani	1.1
9			class PhEDExDatasvcInfo:
10	fanzago	1.28	def __init__( self , cfg_params=None, config=None ):
11	spiga	1.3
12			## PhEDEx Data Service URL
13	fanzago	1.28	self.datasvc_url="https://cmsweb.cern.ch/phedex/datasvc/xml/prod"
14	spiga	1.3
15	afanfani	1.6	self.FacOps_savannah = 'https://savannah.cern.ch/support/?func=additem&group=cmscompinfrasup'
16	spiga	1.23	stage_out_faq='https://twiki.cern.ch/twiki/bin/view/CMS/SWGuideCrabHowTo#Stageout_and_publication'
17	spiga	1.17	self.dataPub_faq = 'https://twiki.cern.ch/twiki/bin/view/CMS/SWGuideCrabForPublication'
18	spiga	1.3
19	fanzago	1.28	self.usePhedex = True
20	spiga	1.29	self.sched = common.scheduler.name().upper()
21	fanzago	1.28
22			if config!=None:
23			self.checkConfig(config)
24			else:
25			self.checkCfgConfig(cfg_params)
26
27			self.protocol = self.srm_version
28
29
30			def checkConfig(self,config):
31			"""
32			"""
33			self.srm_version = config.get("srm_version",'srmv2')
34			self.node = config.get('storage_element',None)
35			self.lfn='/store/'
36
37			def checkCfgConfig(self,cfg_params):
38			"""
39			"""
40			self.datasvc_url = cfg_params.get("USER.datasvc_url",self.datasvc_url)
41	spiga	1.3	self.srm_version = cfg_params.get("USER.srm_version",'srmv2')
42			self.node = cfg_params.get('USER.storage_element',None)
43	spiga	1.17
44	spiga	1.3	self.publish_data = cfg_params.get("USER.publish_data",0)
45			self.usenamespace = cfg_params.get("USER.usenamespace",0)
46	fanzago	1.10	self.user_remote_dir = cfg_params.get("USER.user_remote_dir",'')
47	fanzago	1.7	if self.user_remote_dir:
48			if ( self.user_remote_dir[-1] != '/' ) : self.user_remote_dir = self.user_remote_dir + '/'
49	spiga	1.17
50	spiga	1.3	self.datasetpath = cfg_params.get("CMSSW.datasetpath")
51			self.publish_data_name = cfg_params.get('USER.publish_data_name','')
52
53	spiga	1.8	self.user_port = cfg_params.get("USER.storage_port",'8443')
54	spiga	1.3	self.user_se_path = cfg_params.get("USER.storage_path",'')
55	fanzago	1.7	if self.user_se_path:
56			if ( self.user_se_path[-1] != '/' ) : self.user_se_path = self.user_se_path + '/'
57
58	spiga	1.3	#check if using "private" Storage
59	spiga	1.11	if not self.node :
60			msg = 'Please specify the storage_element name in your crab.cfg section [USER].\n'
61	spiga	1.17	msg +='\tFor further information please visit : %s'%stage_out_faq
62	spiga	1.11	raise CrabException(msg)
63	spiga	1.4	if (self.node.find('T1_') + self.node.find('T2_')+self.node.find('T3_')) == -3: self.usePhedex = False
64	spiga	1.15
65			if not self.usePhedex and ( self.user_remote_dir == '' or self.user_se_path == '' ):
66	spiga	1.3	msg = 'You are asking to stage out without using CMS Storage Name convention. In this case you \n'
67	spiga	1.15	msg += '\t must specify both user_remote_dir and storage_path in the crab.cfg section [USER].\n '
68	spiga	1.17	msg += '\t For further information please visit : \n\t%s'%stage_out_faq
69	spiga	1.3	raise CrabException(msg)
70	spiga	1.22
71			self.forced_path = '/store/user/'
72	mcinquil	1.32	if self.sched in ['CAF','LSF','PBS']:
73	spiga	1.31	self.srm_version = 'direct'
74	mcinquil	1.32	self.SE = {'CAF':'caf.cern.ch', 'LSF':'', 'PBS':''}
75	spiga	1.22	if self.sched == 'CAF': self.forced_path = '/store/caf/user/'
76
77	spiga	1.14	if not self.usePhedex:
78	spiga	1.15	self.forced_path = self.user_remote_dir
79	spiga	1.3	return
80
81			def getEndpoint(self):
82			'''
83			Return full SE endpoint and related infos
84			'''
85			self.lfn = self.getLFN()
86
87			#extract the PFN for the given node,LFN,protocol
88			endpoint = self.getStageoutPFN()
89	fanzago	1.27	### FEDE added a check for the final /
90			if ( endpoint[-1] != '/' ) : endpoint = endpoint + '/'
91			######################################
92	spiga	1.3
93			#extract SE name an SE_PATH (needed for publication)
94			SE, SE_PATH, User = self.splitEndpoint(endpoint)
95
96			return endpoint, self.lfn , SE, SE_PATH, User
97
98			def splitEndpoint(self, endpoint):
99			'''
100			Return relevant infos from endpoint
101			'''
102			SE = ''
103			SE_PATH = ''
104			USER = ''
105			if self.usePhedex:
106			if self.protocol == 'direct':
107			query=endpoint
108			SE_PATH = endpoint
109	fanzago	1.18	SE = self.SE[self.sched]
110	spiga	1.3	else:
111			url = 'http://'+endpoint.split('://')[1]
112			# python > 2.4
113			# SE = urlparse(url).hostname
114			scheme, host, path, params, query, fragment = urlparse(url)
115	spiga	1.33	# SE = host.split(':')[0]
116			SE = self.getAuthoritativeSE()
117	spiga	1.3	SE_PATH = endpoint.split(host)[1]
118			USER = (query.split('user')[1]).split('/')[1]
119			else:
120	fanzago	1.19	#### to test #####
121	spiga	1.21	# url = 'http://'+endpoint.split('://')[1]
122			# scheme, host, path, params, query, fragment = urlparse(url)
123			# SE = host.split(':')[0]
124			# SE_PATH = endpoint.split(host)[1]
125	spiga	1.20	SE = self.node
126			SE_PATH = self.user_se_path + self.user_remote_dir
127	spiga	1.30	if self.lfn.find('user'):
128			try:
129			USER = (self.lfn.split('user')[1]).split('/')[1]
130			except:
131			pass
132			if self.lfn.find('group'):
133			try:
134			USER = (self.lfn.split('group')[1]).split('/')[1]
135			except:
136			pass
137	spiga	1.3	return SE, SE_PATH, USER
138	afanfani	1.2
139	spiga	1.3
140			def getLFN(self):
141			"""
142			define the LFN composing the needed pieces
143			"""
144			lfn = ''
145			l_User = False
146			if not self.usePhedex and (int(self.publish_data) == 0 and int(self.usenamespace) == 0) :
147			### add here check if user is trying to force a wrong LFN using a T2 TODO
148			## check if storage_name is a T2 (siteDB query)
149			## if yes :match self.user_lfn with LFNBaseName...
150			## if NOT : raise (you are using a T2. It's not allowed stage out into self.user_path+self.user_lfn)
151	spiga	1.15	lfn = self.user_remote_dir
152	spiga	1.3	return lfn
153			if self.publish_data_name == '' and int(self.publish_data) == 1:
154	spiga	1.17	msg = "Error. The [USER] section does not have 'publish_data_name'\n"
155			msg += '\tFor further information please visit : \n\t%s'%self.dataPub_faq
156	spiga	1.3	raise CrabException(msg)
157			if self.publish_data_name == '' and int(self.usenamespace) == 1:
158			self.publish_data_name = "DefaultDataset"
159	fanzago	1.26	if int(self.publish_data) == 1:
160			if self.sched in ['CAF']: l_User=True
161			primaryDataset = self.computePrimaryDataset()
162			### added the case lfn = LFNBase(self.forced_path, primaryDataset, self.publish_data_name, publish=True)
163			### for the publication in order to be able to check the lfn length
164			lfn = LFNBase(self.forced_path, primaryDataset, self.publish_data_name, publish=True) + '/${PSETHASH}/'
165			elif int(self.usenamespace) == 1:
166	spiga	1.3	if self.sched in ['CAF']: l_User=True
167			primaryDataset = self.computePrimaryDataset()
168	spiga	1.21	lfn = LFNBase(self.forced_path, primaryDataset, self.publish_data_name) + '/${PSETHASH}/'
169	spiga	1.3	else:
170	spiga	1.5	if self.sched in ['CAF','LSF']: l_User=True
171	spiga	1.21	lfn = LFNBase(self.forced_path,self.user_remote_dir)
172	spiga	1.3	return lfn
173
174			def computePrimaryDataset(self):
175			"""
176			compute the last part for the LFN in case of publication
177			"""
178			if (self.datasetpath.upper() != 'NONE'):
179			primarydataset = self.datasetpath.split("/")[1]
180			else:
181			primarydataset = self.publish_data_name
182			return primarydataset
183
184	spiga	1.33	def domPhedex(self,params,datasvc_baseUrl):
185	spiga	1.3	"""
186			PhEDEx Data Service lfn2pfn call
187
188	spiga	1.33	input: params,datasvc_baseUrl
189	spiga	1.3	returns: DOM object with the content of the PhEDEx Data Service call
190			"""
191			params = urllib.urlencode(params)
192			try:
193	spiga	1.33	urlresults = urllib.urlopen(datasvc_baseUrl, params)
194	spiga	1.3	urlresults = parse(urlresults)
195	slacapra	1.24	except IOError:
196	spiga	1.33	msg="Unable to access PhEDEx Data Service at %s"%datasvc_baseUrl
197	slacapra	1.24	raise CrabException(msg)
198	spiga	1.3	except:
199			urlresults = None
200
201			return urlresults
202	afanfani	1.1
203	spiga	1.3	def parse_error(self,urlresults):
204			"""
205			look for errors in the DOM object returned by PhEDEx Data Service call
206			"""
207			errormsg = None
208			errors=urlresults.getElementsByTagName('error')
209			for error in errors:
210			errormsg=error.childNodes[0].data
211			if len(error.childNodes)>1:
212			errormsg+=error.childNodes[1].data
213			return errormsg
214
215			def parse_lfn2pfn(self,urlresults):
216			"""
217			Parse the content of the result of lfn2pfn PhEDEx Data Service call
218
219			input: DOM object with the content of the lfn2pfn call
220			returns: PFN
221			"""
222			result = urlresults.getElementsByTagName('phedex')
223
224			if not result:
225			return []
226			result = result[0]
227			pfn = None
228			mapping = result.getElementsByTagName('mapping')
229			for m in mapping:
230			pfn=m.getAttribute("pfn")
231			if pfn:
232			return pfn
233
234			def getStageoutPFN( self ):
235			"""
236			input: LFN,node name,protocol
237			returns: PFN
238			"""
239			if self.usePhedex:
240	spiga	1.33	params = {'node' : self.node , 'lfn': self.lfn , 'protocol': self.protocol}
241			datasvc_lfn2pfn="%s/lfn2pfn"%self.datasvc_url
242	spiga	1.3	fullurl="%s/lfn2pfn?node=%s&lfn=%s&protocol=%s"%(self.datasvc_url,self.node,self.lfn,self.protocol)
243	spiga	1.33	domlfn2pfn = self.domPhedex(params,datasvc_lfn2pfn)
244	spiga	1.3	if not domlfn2pfn :
245			msg="Unable to get info from %s"%fullurl
246			raise CrabException(msg)
247
248			errormsg = self.parse_error(domlfn2pfn)
249			if errormsg:
250			msg="Error extracting info from %s due to: %s"%(fullurl,errormsg)
251			raise CrabException(msg)
252
253			stageoutpfn = self.parse_lfn2pfn(domlfn2pfn)
254			if not stageoutpfn:
255	afanfani	1.6	msg ='Unable to get stageout path from TFC at Site %s \n'%self.node
256			msg+=' Please alert the CompInfraSup group through their savannah %s \n'%self.FacOps_savannah
257			msg+=' reporting: \n'
258			msg+=' Summary: Unable to get user stageout from TFC at Site %s \n'%self.node
259			msg+=' OriginalSubmission: stageout path is not retrieved from %s \n'%fullurl
260	spiga	1.3	raise CrabException(msg)
261			else:
262	mcinquil	1.32	if self.sched in ['CAF','LSF','PBS'] :
263	spiga	1.12	stageoutpfn = self.user_se_path+self.lfn
264	spiga	1.11	else:
265			stageoutpfn = 'srm://'+self.node+':'+self.user_port+self.user_se_path+self.lfn
266	spiga	1.3
267			return stageoutpfn
268	afanfani	1.6
269	spiga	1.33	def getAuthoritativeSE(self):
270			"""
271			input: node name
272			returns: AuthoritativeSE
273			"""
274			params = {'node' : self.node }
275			datasvc_nodes="%s/nodes"%self.datasvc_url
276			fullurl="%s/nodes/?node=%s"%(self.datasvc_url,self.node)
277			domnodes = self.domPhedex(params,datasvc_nodes)
278
279			if not domnodes :
280			msg="Unable to get info from %s"%fullurl
281			raise CrabException(msg)
282
283			errormsg = self.parse_error(domnodes)
284			if errormsg:
285			msg="Error extracting info from %s due to: %s"%(fullurl,errormsg)
286			raise CrabException(msg)
287			result = domnodes.getElementsByTagName('phedex')
288			if not result:
289			return []
290			result = result[0]
291			se = None
292			node = result.getElementsByTagName('node')
293			for m in node:
294			se=m.getAttribute("se")
295			if se:
296			return se
297	afanfani	1.6
298
299			if __name__ == '__main__':
300			"""
301			Sort of unit testing to check Phedex API for whatever site and/or lfn.
302			Usage:
303			python PhEDExDatasvcInfo.py --node T2_IT_Bari --lfn /store/maremma
304
305			"""
306			import getopt,sys
307			from crab_util import *
308			import common
309			klass_name = 'SchedulerGlite'
310			klass = importName(klass_name, klass_name)
311			common.scheduler = klass()
312
313			lfn="/store/user/"
314			node='T2_IT_Bari'
315			valid = ['node=','lfn=']
316			try:
317			opts, args = getopt.getopt(sys.argv[1:], "", valid)
318			except getopt.GetoptError, ex:
319			print str(ex)
320			sys.exit(1)
321			for o, a in opts:
322			if o == "--node":
323			node = a
324			if o == "--lfn":
325			lfn = a
326
327			mycfg_params = { 'USER.storage_element': node }
328			dsvc = PhEDExDatasvcInfo(mycfg_params)
329			dsvc.lfn = lfn
330			print dsvc.getStageoutPFN()
331