Merge pull request #398 from tianhao64/master

Temporarily workaround issue #182 by creating dummy managed method

pyVmomi/SoapAdapter.py

@@ -734,7 +734,10 @@ def EndElementHandler(self, tag):
             # val in Method val is not namespace qualified
             # However, this doesn't hurt to strip out namespace
             ns, name = self.GetNSAndWsdlname(data)
-            obj = GuessWsdlMethod(name)
+            try:
+               obj = GuessWsdlMethod(name)
+            except KeyError:
+               obj = UncallableManagedMethod(name)
          elif obj is bool:
             if data == "0" or data.lower() == "false":
                obj = bool(False)

pyVmomi/VmomiSupport.py

@@ -307,6 +307,8 @@ def FormatObject(val, info=Object(name="", type=object, flags=0), indent=0):
          result = "(%s) []" % itemType.__name__
    elif isinstance(val, type):
       result = val.__name__
+   elif isinstance(val, UncallableManagedMethod):
+      result = val.name
    elif isinstance(val, ManagedMethod):
       result = '%s.%s' % (val.info.type.__name__, val.info.name)
    elif isinstance(val, bool):
@@ -588,6 +590,15 @@ def __init__(self, info):
       Curry.__init__(self, ManagedObject._InvokeMethod, info)
       self.info = info
 
+# Method used to represent any unknown wsdl method returned by server response.
+# Server may return unknown method name due to server defects or newer version.
+class UncallableManagedMethod(ManagedMethod):
+   def __init__(self, name):
+      self.name = name
+
+   def __call__(self, *args, **kwargs):
+      raise Exception("Managed method {} is not available".format(self.name))
+
 ## Create the vmodl.MethodFault type
 #
 # This type must be generated dynamically because it inherits from
@@ -1038,9 +1049,15 @@ class UnknownWsdlTypeError(KeyError):
 # @return type if found in any one of the name spaces else throws KeyError
 def GuessWsdlType(name):
    with _lazyLock:
-      # Because the types are lazily loaded, if some name is present
-      # in multiple namespaces, we will load the first type that we
-      # encounter and return it.
+      # Some types may exist in multiple namespaces, and returning
+      # the wrong one will cause a deserialization error.
+      # Since in python3 the order of entries in set is not deterministic,
+      # we will try to get the type from vim25 namespace first.
+      try:
+         return GetWsdlType(XMLNS_VMODL_BASE, name)
+      except KeyError:
+         pass
+
       for ns in _wsdlTypeMapNSs:
          try:
             return GetWsdlType(ns, name)
@@ -1231,6 +1248,15 @@ def GetWsdlMethod(ns, wsdlName):
 # KeyError
 def GuessWsdlMethod(name):
    with _lazyLock:
+      # Some methods may exist in multiple namespaces, and returning
+      # the wrong one will cause a deserialization error.
+      # Since in python3 the order of entries in set is not deterministic,
+      # we will try to get the method from vim25 namespace first.
+      try:
+         return GetWsdlMethod(XMLNS_VMODL_BASE, name)
+      except KeyError:
+         pass
+
       for ns in _wsdlMethodNSs:
          try:
             return GetWsdlMethod(ns, name)

tests/files/unknown_method.xml

@@ -0,0 +1,78 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<soapenv:Envelope xmlns:soapenc="http://schemas.xmlsoap.org/soap/encoding/" xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
+    <soapenv:Body>
+        <ReadNextTasksResponse xmlns="urn:vim25">
+            <returnval>
+                <key>task-3996443</key>
+                <task type="Task">task-3996443</task>
+                <description>
+                    <key>com.vmware.vdp2.task.description</key>
+                    <arg>
+                        <key>workOrderId</key>
+                        <value xsi:type="xsd:string">cp.20141020150650</value>
+                    </arg>
+                </description>
+                <descriptionId>com.vmware.vdp2.integritycheck</descriptionId>
+                <entity type="VirtualMachine">vm-133364</entity>
+                <entityName>VDP3</entityName>
+                <state>running</state>
+                <cancelled>false</cancelled>
+                <cancelable>true</cancelable>
+                <reason xsi:type="TaskReasonUser">
+                    <userName>vmware\\sa-vdp3</userName>
+                </reason>
+                <queueTime>2014-10-20T15:09:08.789999Z</queueTime>
+                <startTime>2014-10-20T15:09:09.073Z</startTime>
+                <eventChainId>21691195</eventChainId>
+            </returnval>
+            <returnval>
+                <key>task-1178117</key>
+                <task type="Task">task-1178117</task>
+                <descriptionId>com.vmware.vcIntegrity.CheckNotificationTask</descriptionId>
+                <entity type="Folder">group-d1</entity>
+                <entityName>Datacenters</entityName>
+                <state>queued</state>
+                <cancelled>false</cancelled>
+                <cancelable>true</cancelable>
+                <reason xsi:type="TaskReasonSchedule">
+                    <name>VMware vSphere Update Manager Check Notification</name>
+                    <scheduledTask type="ScheduledTask">schedule-2</scheduledTask>
+                </reason>
+                <queueTime>2013-01-08T14:12:01.556999Z</queueTime>
+                <eventChainId>3410272</eventChainId>
+            </returnval>
+            <returnval>
+                <key>task-746590</key>
+                <task type="Task">task-746590</task>
+                <name>LeaseMapDiskRegion</name>
+                <descriptionId>host.DiskManager.Lease.MapDiskRegion</descriptionId>
+                <entity type="VirtualMachine">vm-982</entity>
+                <entityName>Applicure</entityName>
+                <state>queued</state>
+                <cancelled>false</cancelled>
+                <cancelable>false</cancelable>
+                <reason xsi:type="TaskReasonUser">
+                    <userName>VMWARE\\sa-veeam1</userName>
+                </reason>
+                <queueTime>2012-09-27T12:03:03.412999Z</queueTime>
+                <eventChainId>2325872</eventChainId>
+            </returnval>
+            <returnval>
+                <key>task-56327</key>
+                <task type="Task">task-56327</task>
+                <name>LeaseMapDiskRegion</name>
+                <descriptionId>host.DiskManager.Lease.MapDiskRegion</descriptionId>
+                <entity type="VirtualMachine">vm-1010</entity>
+                <entityName>vCD-Oracle</entityName>
+                <state>queued</state>
+                <cancelled>false</cancelled>
+                <cancelable>false</cancelable>
+                <reason xsi:type="TaskReasonUser">
+                    <userName>VMWARE\\sa-veeam1</userName>
+                </reason>
+                <queueTime>2012-02-27T10:56:50.656999Z</queueTime>
+                <eventChainId>345916</eventChainId>
+            </returnval>
+        </ReadNextTasksResponse>
+    </soapenv:Body>
+</soapenv:Envelope>

tests/test_deserializer.py

@@ -0,0 +1,33 @@
+# VMware vSphere Python SDK
+# Copyright (c) 2016 VMware, Inc. All Rights Reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+from pyVmomi import vim
+from pyVmomi.SoapAdapter import SoapStubAdapter, SoapResponseDeserializer
+import unittest
+
+
+class DeserializerTests(unittest.TestCase):
+
+    def test_deserialize_unknown_managed_method(self):
+        with open('tests/files/unknown_method.xml', 'rb') as f:
+            data = f.read()
+        stub = SoapStubAdapter(version="vim.version.version6")
+        deserializer = SoapResponseDeserializer(stub)
+        result = vim.TaskHistoryCollector._GetMethodInfo("ReadNext").result
+        obj = deserializer.Deserialize(data, result)
+        print(obj)
+        with self.assertRaisesRegexp(Exception, "Managed method LeaseMapDiskRegion is not available"):
+            obj[-1].name()
+