[Libvirt-cim] [PATCH 1 of 2] [TEST] Added the indications.py to support Indications
Deepti B. Kalakeri
deeptik at linux.vnet.ibm.com
Thu Jul 9 12:55:37 UTC 2009
# HG changeset patch
# User Deepti B.Kalakeri <deeptik at linux.vnet.ibm.com>
# Date 1247143660 25200
# Node ID 73aedcd4026381023be4d25d741ce74113b8f8e6
# Parent 7b18b827fca6916fd87ff417f79a96c8a19b4913
[TEST] Added the indications.py to support Indications.
Included the following important functions in indications.py
- sub_ind() --> Subscribe for the indications to be watched.
- handle_request() --> Filters the required indications.
- poll_for_ind() --> Wait for the required indications to be triggered.
Tested with KVM and current sources on F10.
Signed-off-by: Deepti B. Kalakeri <deeptik at linux.vnet.ibm.com>
diff -r 7b18b827fca6 -r 73aedcd40263 suites/libvirt-cim/lib/XenKvmLib/indications.py
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/suites/libvirt-cim/lib/XenKvmLib/indications.py Thu Jul 09 05:47:40 2009 -0700
@@ -0,0 +1,461 @@
+#!/usr/bin/python
+#
+# Copyright 2009 IBM Corp.
+#
+# Authors:
+# Deepti B. Kalakeri <deeptik at linux.vnet.ibm.com>
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+# General Public License for more details.
+#
+# You should have received a copy of the GNU General Public
+# License along with this library; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+#
+#
+
+import httplib
+import base64
+import BaseHTTPServer
+from xml.dom.minidom import parseString
+from signal import SIGKILL
+from CimTest.Globals import logger
+from XenKvmLib.vxml import set_default
+from XenKvmLib.classes import get_typed_class
+from CimTest.ReturnCodes import PASS, FAIL
+from os import waitpid, kill, WNOHANG
+
+def filter_xml(name, type, ns, sysname):
+ return """
+ <?xml version="1.0" encoding="utf-8"?>
+ <CIM CIMVERSION="2.0" DTDVERSION="2.0">
+ <MESSAGE ID="4711" PROTOCOLVERSION="1.0">
+ <SIMPLEREQ>
+ <IMETHODCALL NAME="CreateInstance">
+ <LOCALNAMESPACEPATH>
+ <NAMESPACE NAME="root"/>
+ <NAMESPACE NAME="PG_InterOp"/>
+ </LOCALNAMESPACEPATH>
+ <IPARAMVALUE NAME="NewInstance">
+ <INSTANCE CLASSNAME="CIM_IndicationFilter">
+ <PROPERTY NAME="SystemCreationClassName" TYPE="string">
+ <VALUE>CIM_ComputerSystem</VALUE>
+ </PROPERTY>
+ <PROPERTY NAME="SystemName" TYPE="string">
+ <VALUE>%s</VALUE>
+ </PROPERTY>
+ <PROPERTY NAME="CreationClassName" TYPE="string">
+ <VALUE>CIM_IndicationFilter</VALUE>
+ </PROPERTY>
+ <PROPERTY NAME="Name" TYPE="string">
+ <VALUE>%sFilter</VALUE>
+ </PROPERTY>
+ <PROPERTY NAME="Query" TYPE="string">
+ <VALUE> SELECT * FROM %s
+ </VALUE>
+ </PROPERTY>
+ <PROPERTY NAME="QueryLanguage" TYPE="string">
+ <VALUE>WQL</VALUE>
+ </PROPERTY>
+ <PROPERTY NAME="SourceNamespace" TYPE="string">
+ <VALUE>%s</VALUE>
+ </PROPERTY>
+ </INSTANCE>
+ </IPARAMVALUE>
+ </IMETHODCALL>
+ </SIMPLEREQ>
+ </MESSAGE>
+ </CIM>
+ """ % (sysname, name, type, ns)
+
+def handler_xml(name, port, sysname):
+ return """
+ <?xml version="1.0" encoding="utf-8"?>
+ <CIM CIMVERSION="2.0" DTDVERSION="2.0">
+ <MESSAGE ID="4711" PROTOCOLVERSION="1.0">
+ <SIMPLEREQ>
+ <IMETHODCALL NAME="CreateInstance">
+ <LOCALNAMESPACEPATH>
+ <NAMESPACE NAME="root"/>
+ <NAMESPACE NAME="PG_InterOp"/>
+ </LOCALNAMESPACEPATH>
+ <IPARAMVALUE NAME="NewInstance">
+ <INSTANCE CLASSNAME="CIM_IndicationHandlerCIMXML">
+ <PROPERTY NAME="SystemCreationClassName" TYPE="string">
+ <VALUE>CIM_ComputerSystem</VALUE>
+ </PROPERTY>
+ <PROPERTY NAME="SystemName" TYPE="string">
+ <VALUE>%s</VALUE>
+ </PROPERTY>
+ <PROPERTY NAME="CreationClassName" TYPE="string">
+ <VALUE>CIM_IndicationHandlerCIMXML</VALUE>
+ </PROPERTY>
+ <PROPERTY NAME="Name" TYPE="string">
+ <VALUE>%sHandler</VALUE>
+ </PROPERTY>
+ <PROPERTY NAME="Destination" TYPE="string">
+ <VALUE>http://localhost:%i</VALUE>
+ </PROPERTY>
+ </INSTANCE>
+ </IPARAMVALUE>
+ </IMETHODCALL>
+ </SIMPLEREQ>
+ </MESSAGE>
+ </CIM>
+ """ % (sysname, name, port)
+
+def subscription_xml(name, sysname):
+ return """
+ <?xml version="1.0" encoding="utf-8"?>
+ <CIM CIMVERSION="2.0" DTDVERSION="2.0">
+ <MESSAGE ID="4711" PROTOCOLVERSION="1.0">
+ <SIMPLEREQ>
+ <IMETHODCALL NAME="CreateInstance">
+ <LOCALNAMESPACEPATH>
+ <NAMESPACE NAME="root"/>
+ <NAMESPACE NAME="PG_InterOp"/>
+ </LOCALNAMESPACEPATH>
+ <IPARAMVALUE NAME="NewInstance">
+ <INSTANCE CLASSNAME="CIM_IndicationSubscription">
+ <PROPERTY.REFERENCE NAME="Filter"
+ REFERENCECLASS="CIM_IndicationFilter">
+ <VALUE.REFERENCE>
+ <INSTANCENAME CLASSNAME="CIM_IndicationFilter">
+ <KEYBINDING NAME="SystemCreationClassName">
+ <KEYVALUE VALUETYPE="string">
+ CIM_ComputerSystem
+ </KEYVALUE>
+ </KEYBINDING>
+ <KEYBINDING NAME="SystemName">
+ <KEYVALUE VALUETYPE="string">
+ %s
+ </KEYVALUE>
+ </KEYBINDING>
+ <KEYBINDING NAME="CreationClassName">
+ <KEYVALUE VALUETYPE="string">
+ CIM_IndicationFilter
+ </KEYVALUE>
+ </KEYBINDING>
+ <KEYBINDING NAME="Name">
+ <KEYVALUE VALUETYPE="string">
+ %sFilter
+ </KEYVALUE>
+ </KEYBINDING>
+ </INSTANCENAME>
+ </VALUE.REFERENCE>
+ </PROPERTY.REFERENCE>
+ <PROPERTY.REFERENCE NAME="Handler"
+ REFERENCECLASS="CIM_IndicationHandler">
+ <VALUE.REFERENCE>
+ <INSTANCENAME CLASSNAME="CIM_IndicationHandlerCIMXML">
+ <KEYBINDING NAME="SystemCreationClassName">
+ <KEYVALUE VALUETYPE="string">
+ CIM_ComputerSystem
+ </KEYVALUE>
+ </KEYBINDING>
+ <KEYBINDING NAME="SystemName">
+ <KEYVALUE VALUETYPE="string">
+ %s
+ </KEYVALUE>
+ </KEYBINDING>
+ <KEYBINDING NAME="CreationClassName">
+ <KEYVALUE VALUETYPE="string">
+ CIM_IndicationHandlerCIMXML
+ </KEYVALUE>
+ </KEYBINDING>
+ <KEYBINDING NAME="Name">
+ <KEYVALUE VALUETYPE="string">
+ %sHandler
+ </KEYVALUE>
+ </KEYBINDING>
+ </INSTANCENAME>
+ </VALUE.REFERENCE>
+ </PROPERTY.REFERENCE>
+ <PROPERTY NAME="SubscriptionState" TYPE="uint16">
+ <VALUE> 2 </VALUE>
+ </PROPERTY>
+ </INSTANCE>
+ </IPARAMVALUE>
+ </IMETHODCALL>
+ </SIMPLEREQ>
+ </MESSAGE>
+ </CIM>
+ """ % (sysname, name, sysname, name)
+
+def delete_inst_xml(name, type, sysname, inst_name):
+ return """
+ <?xml version="1.0" encoding="utf-8"?>
+ <CIM CIMVERSION="2.0" DTDVERSION="2.0">
+ <MESSAGE ID="4711" PROTOCOLVERSION="1.0">
+ <SIMPLEREQ>
+ <IMETHODCALL NAME="DeleteInstance">
+ <LOCALNAMESPACEPATH>
+ <NAMESPACE NAME="root"/>
+ <NAMESPACE NAME="PG_InterOp"/>
+ </LOCALNAMESPACEPATH>
+ <IPARAMVALUE NAME="InstanceName">
+ <INSTANCENAME CLASSNAME="CIM_Indication%s">
+ <KEYBINDING NAME="SystemCreationClassName">
+ <KEYVALUE>CIM_ComputerSystem</KEYVALUE>
+ </KEYBINDING>
+ <KEYBINDING NAME="SystemName">
+ <KEYVALUE>%s</KEYVALUE>
+ </KEYBINDING>
+ <KEYBINDING NAME="CreationClassName">
+ <KEYVALUE>CIM_Indication%s</KEYVALUE>
+ </KEYBINDING>
+ <KEYBINDING NAME="Name">
+ <KEYVALUE>%s</KEYVALUE>
+ </KEYBINDING>
+ </INSTANCENAME>
+ </IPARAMVALUE>
+ </IMETHODCALL>
+ </SIMPLEREQ>
+ </MESSAGE>
+ </CIM>;
+ """ % (type, sysname, type, inst_name);
+
+def delete_sub_xml(name, sysname):
+ return """
+ <?xml version="1.0" encoding="utf-8"?>
+ <CIM CIMVERSION="2.0" DTDVERSION="2.0">
+ <MESSAGE ID="4711" PROTOCOLVERSION="1.0">
+ <SIMPLEREQ>
+ <IMETHODCALL NAME="DeleteInstance">
+ <LOCALNAMESPACEPATH>
+ <NAMESPACE NAME="root"/>
+ <NAMESPACE NAME="PG_InterOp"/>
+ </LOCALNAMESPACEPATH>
+ <IPARAMVALUE NAME="InstanceName">
+ <INSTANCENAME CLASSNAME="CIM_IndicationSubscription">
+ <KEYBINDING NAME="Filter">
+ <VALUE.REFERENCE>
+ <INSTANCENAME CLASSNAME="CIM_IndicationFilter">
+ <KEYBINDING NAME="SystemCreationClassName">
+ <KEYVALUE VALUETYPE="string">
+ CIM_ComputerSystem
+ </KEYVALUE>
+ </KEYBINDING>
+ <KEYBINDING NAME="SystemName">
+ <KEYVALUE VALUETYPE="string">
+ %s
+ </KEYVALUE>
+ </KEYBINDING>
+ <KEYBINDING NAME="CreationClassName">
+ <KEYVALUE VALUETYPE="string">
+ CIM_IndicationFilter
+ </KEYVALUE>
+ </KEYBINDING>
+ <KEYBINDING NAME="Name">
+ <KEYVALUE VALUETYPE="string">
+ %sFilter
+ </KEYVALUE>
+ </KEYBINDING>
+ </INSTANCENAME>
+ </VALUE.REFERENCE>
+ </KEYBINDING>
+ <KEYBINDING NAME="Handler">
+ <VALUE.REFERENCE>
+ <INSTANCENAME CLASSNAME="CIM_IndicationHandlerCIMXML">
+ <KEYBINDING NAME="SystemCreationClassName">
+ <KEYVALUE VALUETYPE="string">
+ CIM_ComputerSystem
+ </KEYVALUE>
+ </KEYBINDING>
+ <KEYBINDING NAME="SystemName">
+ <KEYVALUE VALUETYPE="string">
+ %s
+ </KEYVALUE>
+ </KEYBINDING>
+ <KEYBINDING NAME="CreationClassName">
+ <KEYVALUE VALUETYPE="string">
+ CIM_IndicationHandlerCIMXML
+ </KEYVALUE>
+ </KEYBINDING>
+ <KEYBINDING NAME="Name">
+ <KEYVALUE VALUETYPE="string">
+ %sHandler
+ </KEYVALUE>
+ </KEYBINDING>
+ </INSTANCENAME>
+ </VALUE.REFERENCE>
+ </KEYBINDING>
+ </INSTANCENAME>
+ </IPARAMVALUE>
+ </IMETHODCALL>
+ </SIMPLEREQ>
+ </MESSAGE>
+ </CIM>;
+ """ % (sysname, name, sysname, name)
+
+class CIMIndication:
+ def __init__(self, xmldata):
+ dom = parseString(xmldata)
+
+ instances = dom.getElementsByTagName("INSTANCE")
+ attrs = instances[0].attributes.items()
+ self.name = attrs[0][1]
+
+ def __str__(self):
+ return self.name
+
+class CIMSocketHandler(BaseHTTPServer.BaseHTTPRequestHandler):
+ def do_POST(self):
+ length = self.headers.getheader('content-length')
+ data = self.rfile.read(int(length))
+
+ indication = CIMIndication(data)
+ print "Got indication: %s" % indication
+ if self.server.print_ind:
+ print "%s\n\n" % data
+ self.server.indications.append(indication)
+
+class CIMIndicationSubscription:
+ def __init__(self, name, typ, ns, print_ind, sysname, port=0):
+ self.name = name
+ self.type = typ
+ self.ns = ns
+ self.sysname = sysname
+
+ self.port = 8000 + port
+ self.server = BaseHTTPServer.HTTPServer(('', self.port),
+ CIMSocketHandler)
+ self.server.print_ind = print_ind
+ self.server.indications = []
+
+ self.filter_xml = filter_xml(name, typ, ns, sysname)
+ self.handler_xml = handler_xml(name, self.port, sysname)
+ self.subscription_xml = subscription_xml(name, sysname)
+
+ def __do_cimpost(self, conn, body, method, auth_hdr=None):
+ headers = {"CIMOperation" : "MethodCall",
+ "CIMMethod" : method,
+ "CIMObject" : "root/PG_Interop",
+ "Content-Type" : 'application/xml; charset="utf-8"'}
+
+ if auth_hdr:
+ headers["Authorization"] = "Basic %s" % auth_hdr
+
+ conn.request("POST", "/cimom", body, headers)
+ resp = conn.getresponse()
+ if not resp.getheader("content-length"):
+ raise Exception("Request Failed: %d %s" %
+ (resp.status, resp.reason))
+
+ resp.read()
+
+ def subscribe(self, url, cred=None):
+ self.conn = httplib.HTTPConnection(url)
+ if cred:
+ (u, p) = cred
+ auth_hdr = base64.b64encode("%s:%s" % (u, p))
+ else:
+ auth_hdr = None
+
+ self.__do_cimpost(self.conn, self.filter_xml,
+ "CreateInstance", auth_hdr)
+ self.__do_cimpost(self.conn, self.handler_xml,
+ "CreateInstance", auth_hdr)
+ self.__do_cimpost(self.conn, self.subscription_xml,
+ "CreateInstance", auth_hdr)
+
+ def unsubscribe(self, cred=None):
+ if cred:
+ (u, p) = cred
+ auth_hdr = base64.b64encode("%s:%s" % (u, p))
+ else:
+ auth_hdr = None
+
+ xml = delete_sub_xml(self.name, self.sysname)
+ self.__do_cimpost(self.conn, xml,
+ "DeleteInstance", auth_hdr)
+ xml = delete_inst_xml(self.name, "HandlerCIMXML", self.sysname,
+ "%sHandler" % self.name)
+ self.__do_cimpost(self.conn, xml,
+ "DeleteInstance", auth_hdr)
+ xml = delete_inst_xml(self.name, "Filter", self.sysname,
+ "%sFilter" % self.name)
+ self.__do_cimpost(self.conn, xml,
+ "DeleteInstance", auth_hdr)
+
+
+def sub_ind(ip, virt, ind_names):
+ dict = set_default(ip)
+ sub_list = {}
+ port = 5
+
+ for ind, iname in ind_names.iteritems():
+ ind_name = get_typed_class(virt, iname)
+
+ sub_name = "Test%s" % ind_name
+ port += 1
+
+ sub = CIMIndicationSubscription(sub_name, ind_name,
+ dict['default_ns'],
+ dict['default_print_ind'],
+ dict['default_sysname'],
+ port)
+ sub.subscribe(dict['default_url'], dict['default_auth'])
+ logger.info("Watching for %s", iname)
+ ind_names[ind] = ind_name
+ sub_list[ind] = sub
+
+ return sub_list, ind_names, dict
+
+def handle_request(sub, ind_name, dict, exp_ind_ct):
+ #sfcb delivers indications to all registrations, even if the indication
+ #isn't what the registration was subscribed to. So, for modified and
+ #deleted indications, we must loop through until the indication we are
+ #looking for is triggered.
+ for i in range(0, exp_ind_ct):
+ sub.server.handle_request()
+ if len(sub.server.indications) < 1:
+ logger.error("No valid indications received")
+ return FAIL
+
+ if str(sub.server.indications[0]) == ind_name:
+ sub.unsubscribe(dict['default_auth'])
+ logger.info("Cancelling subscription for %s", ind_name)
+ return PASS
+ else:
+ sub.server.indications.remove(sub.server.indications[0])
+
+ logger.error("Did not recieve indication %s", ind_name)
+ return FAIL
+
+def poll_for_ind(pid, ind_name, timeout=20):
+ status = FAIL
+ for i in range(0, timeout):
+ pw = waitpid(pid, WNOHANG)
+
+ # If pid exits, waitpid returns [pid, return_code]
+ # If pid is still running, waitpid returns [0, 0]
+ # Only return a success if waitpid returns the expected pid
+ # and the return code is 0.
+ if pw[0] == pid and pw[1] == 0:
+ logger.info("Great, got '%s' indication successfully", ind_name)
+ status = PASS
+ break
+ elif pw[1] == 0 and i < timeout:
+ if i % 10 == 0:
+ logger.info("In child, waiting for '%s' indication", ind_name)
+ sleep(1)
+ else:
+ # Time is up and waitpid never returned the expected pid
+ if pw[0] != pid:
+ logger.error("Waited too long for '%s' indication", ind_name)
+ kill(pid, SIGKILL)
+ else:
+ logger.error("Received Indication error: '%d'", pw[1])
+
+ status = FAIL
+ break
+
+ return status
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