CRAB/python/DataLocation.py

#!/usr/bin/env python
import sys, os, string, re
import urllib, urllister
import urllib2
import common
from DLSInfo import *

# ####################################
class DataLocationError(exceptions.Exception):
    def __init__(self, errorMessage):
        args=errorMessage
        exceptions.Exception.__init__(self, args)
        pass
                                                                                      
    def getErrorMessage(self):
        """ Return exception error """
        return "%s" % (self.args)

# ####################################
# class to extact data location
class DataLocation:
    def __init__(self, Listfileblocks, cfg_params):

#       Attributes
        self.Listfileblocks = Listfileblocks  # DLS input: list of fileblocks lists

        self.cfg_params = cfg_params

        self.SelectedSites = []        # DLS output: list of sites hosting all the needed fileblocks
                                       #  retireved using method getSites

        CEBlackList = []
        try:
            tmpBad = string.split(self.cfg_params['EDG.ce_black_list'],',')
            for tmp in tmpBad:
                tmp=string.strip(tmp)
                CEBlackList.append(tmp)
        except KeyError:
            pass
        common.logger.debug(5,'CEBlackList: '+str(CEBlackList))
        self.reCEBlackList=[]
        for bad in CEBlackList:
            self.reCEBlackList.append(re.compile( bad ))

        CEWhiteList = []
        try:
            tmpGood = string.split(self.cfg_params['EDG.ce_white_list'],',')
            for tmp in tmpGood:
                tmp=string.strip(tmp)
                CEWhiteList.append(tmp)
        except KeyError:
            pass
        common.logger.debug(5,'CEWhiteList: '+str(CEWhiteList))
        self.reCEWhiteList=[]
        for good in CEWhiteList:
            self.reCEWhiteList.append(re.compile( good ))


# #######################################################################
    def fetchDLSInfo(self):
        """
        Contact DLS
        """
        countblock=0
        Sites = []
        allblockSites = []


        try:
            dlstype=self.cfg_params['ORCA.dls_type']
        except KeyError:
            ## default to DLS-DLI:
            dlstype='dli' 

        DLS_type="DLS_TYPE_%s"%dlstype.upper()

        ## find the replicas for each block
        for fileblocks in self.Listfileblocks:
            for afileblock in fileblocks:
                countblock=countblock+1
                dbspath=string.split(afileblock,'#')[0]
                (null,ds,tier,ow)=string.split(dbspath,'/')
                datablock=ow+"/"+ds
                #
                dls=DLSInfo(DLS_type,self.cfg_params)
                try:
                    replicas=dls.getReplicas(datablock)
                    for replica in replicas:
                        Sites.append(replica)
                except DLSNoReplicas, ex:
                    raise DataLocationError(ex.getErrorMessage())
                except:
                    raise DataLocationError('')

        ## select only sites that contains _all_ the fileblocks
        allblockSites=self.SelectSites(countblock,Sites)
        #for as in allblockSites:
        #   print " site is "+as
        ## select sites that are not in a BlackList , if any
        self.SelectedNotBlackSites=self.checkBlackList(allblockSites)
        ## select sites there are in the white list , if any
        self.SelectedSites=self.checkWhiteList(self.SelectedNotBlackSites)

# #######################################################################
    def getSites(self):
        """
        get the sites hosting all the needed data 
        """
        return self.SelectedSites

# #######################################################################
    def SelectSites(self, countblock, Sites ):
        """
        select only sites that contains _all_ the fileblocks
        """ 
        goodSites=[]
        for aSite in Sites :
            if ( Sites.count(aSite)==countblock ) :
                goodSites.append(aSite)

        return self.uniquelist(goodSites)

# #######################################################################
    def checkBlackList(self, Sites):
        """
        select sites that are not excluded by the user (via CE black list)
        """
        goodSites = []
        for aSite in Sites:
            good=1
            for re in self.reCEBlackList:
                if re.search(aSite):
                    common.logger.message('CE in black list, skipping site '+aSite)
                    good=0
                pass
            if good: goodSites.append(aSite)
        if len(goodSites) == 0:
            common.logger.debug(3,"No selected Sites")
        return goodSites

# #######################################################################
    def checkWhiteList(self, Sites):
        """
        select sites that are defined by the user (via CE white list)
        """
        if len(self.reCEWhiteList)==0: return Sites
        goodSites = []
        for aSite in Sites:
            good=0
            for re in self.reCEWhiteList:
                if re.search(aSite):
                    common.logger.message('CE in white list, adding site '+aSite)
                    good=1
                pass
            if good: goodSites.append(aSite)
        if len(goodSites) == 0:
            common.logger.debug(3,"No selected Sites")
        return goodSites 

#######################################################################
    def uniquelist(self, old):
        """
        remove duplicates from a list
        """
        nd={}
        for e in old:
            nd[e]=0
        return nd.keys()

Revision:	1.14
Committed:	Wed Aug 16 15:06:49 2006 UTC (18 years, 8 months ago) by mkirn
Content type:	text/x-python
Branch:	MAIN
CVS Tags:	HEAD_20092006
Changes since 1.13:	+1 -1 lines
Log Message:	Fixed dls_endpoint
#	User	Rev	Content
1	gutsche	1.7	#!/usr/bin/env python
2	afanfani	1.1	import sys, os, string, re
3			import urllib, urllister
4			import urllib2
5			import common
6			from DLSInfo import *
7
8			# ####################################
9	afanfani	1.3	class DataLocationError(exceptions.Exception):
10	slacapra	1.5	def __init__(self, errorMessage):
11			args=errorMessage
12			exceptions.Exception.__init__(self, args)
13			pass
14	afanfani	1.3
15	slacapra	1.5	def getErrorMessage(self):
16			""" Return exception error """
17			return "%s" % (self.args)
18	afanfani	1.1
19			# ####################################
20			# class to extact data location
21			class DataLocation:
22			def __init__(self, Listfileblocks, cfg_params):
23
24			# Attributes
25			self.Listfileblocks = Listfileblocks # DLS input: list of fileblocks lists
26	slacapra	1.5
27	afanfani	1.1	self.cfg_params = cfg_params
28
29			self.SelectedSites = [] # DLS output: list of sites hosting all the needed fileblocks
30			# retireved using method getSites
31
32			CEBlackList = []
33			try:
34			tmpBad = string.split(self.cfg_params['EDG.ce_black_list'],',')
35			for tmp in tmpBad:
36			tmp=string.strip(tmp)
37			CEBlackList.append(tmp)
38			except KeyError:
39			pass
40			common.logger.debug(5,'CEBlackList: '+str(CEBlackList))
41			self.reCEBlackList=[]
42			for bad in CEBlackList:
43			self.reCEBlackList.append(re.compile( bad ))
44
45	afanfani	1.4	CEWhiteList = []
46			try:
47			tmpGood = string.split(self.cfg_params['EDG.ce_white_list'],',')
48			for tmp in tmpGood:
49			tmp=string.strip(tmp)
50			CEWhiteList.append(tmp)
51			except KeyError:
52			pass
53			common.logger.debug(5,'CEWhiteList: '+str(CEWhiteList))
54			self.reCEWhiteList=[]
55			for good in CEWhiteList:
56			self.reCEWhiteList.append(re.compile( good ))
57
58
59	afanfani	1.1	# #######################################################################
60			def fetchDLSInfo(self):
61			"""
62			Contact DLS
63			"""
64			countblock=0
65			Sites = []
66			allblockSites = []
67
68	afanfani	1.9
69	afanfani	1.8	try:
70			dlstype=self.cfg_params['ORCA.dls_type']
71			except KeyError:
72	afanfani	1.10	## default to DLS-DLI:
73			dlstype='dli'
74
75	afanfani	1.8	DLS_type="DLS_TYPE_%s"%dlstype.upper()
76	afanfani	1.6
77	mkirn	1.11	## find the replicas for each block
78	afanfani	1.1	for fileblocks in self.Listfileblocks:
79	slacapra	1.5	for afileblock in fileblocks:
80			countblock=countblock+1
81			dbspath=string.split(afileblock,'#')[0]
82			(null,ds,tier,ow)=string.split(dbspath,'/')
83			datablock=ow+"/"+ds
84			#
85	mkirn	1.14	dls=DLSInfo(DLS_type,self.cfg_params)
86	slacapra	1.5	try:
87	afanfani	1.6	replicas=dls.getReplicas(datablock)
88	slacapra	1.12	for replica in replicas:
89			Sites.append(replica)
90	slacapra	1.5	except DLSNoReplicas, ex:
91	gutsche	1.13	raise DataLocationError(ex.getErrorMessage())
92	slacapra	1.5	except:
93			raise DataLocationError('')
94	afanfani	1.1
95			## select only sites that contains _all_ the fileblocks
96			allblockSites=self.SelectSites(countblock,Sites)
97			#for as in allblockSites:
98			# print " site is "+as
99	afanfani	1.4	## select sites that are not in a BlackList , if any
100			self.SelectedNotBlackSites=self.checkBlackList(allblockSites)
101			## select sites there are in the white list , if any
102			self.SelectedSites=self.checkWhiteList(self.SelectedNotBlackSites)
103	afanfani	1.1
104			# #######################################################################
105			def getSites(self):
106			"""
107	slacapra	1.5	get the sites hosting all the needed data
108	afanfani	1.1	"""
109			return self.SelectedSites
110
111			# #######################################################################
112			def SelectSites(self, countblock, Sites ):
113			"""
114	slacapra	1.5	select only sites that contains _all_ the fileblocks
115	afanfani	1.1	"""
116			goodSites=[]
117			for aSite in Sites :
118	slacapra	1.5	if ( Sites.count(aSite)==countblock ) :
119			goodSites.append(aSite)
120	afanfani	1.1
121			return self.uniquelist(goodSites)
122
123			# #######################################################################
124			def checkBlackList(self, Sites):
125			"""
126	afanfani	1.4	select sites that are not excluded by the user (via CE black list)
127	afanfani	1.1	"""
128			goodSites = []
129			for aSite in Sites:
130			good=1
131			for re in self.reCEBlackList:
132			if re.search(aSite):
133			common.logger.message('CE in black list, skipping site '+aSite)
134			good=0
135			pass
136			if good: goodSites.append(aSite)
137			if len(goodSites) == 0:
138			common.logger.debug(3,"No selected Sites")
139			return goodSites
140
141	afanfani	1.4	# #######################################################################
142			def checkWhiteList(self, Sites):
143			"""
144			select sites that are defined by the user (via CE white list)
145			"""
146			if len(self.reCEWhiteList)==0: return Sites
147			goodSites = []
148			for aSite in Sites:
149			good=0
150			for re in self.reCEWhiteList:
151			if re.search(aSite):
152			common.logger.message('CE in white list, adding site '+aSite)
153			good=1
154			pass
155			if good: goodSites.append(aSite)
156			if len(goodSites) == 0:
157			common.logger.debug(3,"No selected Sites")
158			return goodSites
159
160	afanfani	1.1	#######################################################################
161			def uniquelist(self, old):
162			"""
163	slacapra	1.5	remove duplicates from a list
164	afanfani	1.1	"""
165			nd={}
166			for e in old:
167			nd[e]=0
168			return nd.keys()
169	slacapra	1.5