[AXIS2-4092] Subclass elements in web service response returned with type="fully qualified class name" instead of xsi:type="ns:SchemaType"

• Type: Bug
• Status: Resolved
• Priority: Critical
• Resolution: Fixed
• Affects Version/s: 1.3
• Component/s: adb
• Assignee: Amila Chinthaka Suriarachchi
• Reporter: Balaji Hari
• Created: 21/Oct/08 18:12
• Updated: 04/Jan/11 10:23
• Resolved: 04/Jan/11 10:23

Description

Axis2 service returns type="com.bmc.bcan.dto.SubjectLinesDTO" instead of xsi:type="ns1:SubjectLinesDTO" in soap response.

This causes issues when the response has elements of sub-types.

Snippet from WSDL definition:

• <xs:complexType name="RuleDTO">
• <xs:sequence>
  <xs:element minOccurs="0" name="annotation" nillable="true" type="xs:string" />
  <xs:element maxOccurs="unbounded" minOccurs="0" name="applicableTrails" nillable="true" type="xs:int" />
  <xs:element minOccurs="0" name="deviceTypeId" nillable="true" type="xs:int" />
  ...
  <xs:element minOccurs="0" name="subject" nillable="true" type="ax21:SubjectDTO" />
  </xs:sequence>
  </xs:complexType>

Definition of SubjectDTO (which has following sub types).

<xs:complexType name="SubjectDTO">

• <xs:sequence>
  <xs:element minOccurs="0" name="caseSensitive" type="xs:boolean" />
  <xs:element minOccurs="0" name="frequency" nillable="true" type="xs:int" />
  <xs:element minOccurs="0" name="ignoreWhitespace" type="xs:boolean" />
  <xs:element minOccurs="0" name="key" nillable="true" type="ax21:KeyDTO" />
  <xs:element minOccurs="0" name="COMPONENT_CLASSNAME" nillable="true" type="xs:string" />
  </xs:sequence>
  </xs:complexType>

• <xs:complexType name="SubjectCollectionDTO">
• <xs:complexContent>
• <xs:extension base="ax21:SubjectDTO">
• <xs:sequence>
  <xs:element maxOccurs="unbounded" minOccurs="0" name="collection" nillable="true" type="xs:string" />
  <xs:element minOccurs="0" name="contiguous" type="xs:boolean" />
  <xs:element minOccurs="0" name="ordered" type="xs:boolean" />
  </xs:sequence>
  </xs:extension>
  </xs:complexContent>
  </xs:complexType>

• <xs:complexType name="SubjectLinesDTO">
• <xs:complexContent>
• <xs:extension base="ax21:SubjectCollectionDTO">
  <xs:sequence />
  </xs:extension>
  </xs:complexContent>
  </xs:complexType>

Server Response :

<return type="com.bmc.bcan.dto.RuleDTO">
<ns1:annotation></ns1:annotation>
<ns1:applicableTrails
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:nil="true" />
<ns1:deviceTypeId>0</ns1:deviceTypeId>
<!-- SubType Element -->
<ns1:subject type="com.bmc.bcan.dto.SubjectLinesDTO">
<ns1:collection>set mls flow full</ns1:collection>
<ns1:collection>
set mls nde ${global.netflowDestination}
${global.netflowPort}
</ns1:collection>
<ns1:collection>
set mls nde version 5
</ns1:collection>
<ns1:collection>set mls nde enable</ns1:collection>
<ns1:collection>
set mls agingtime long 64
</ns1:collection>
<ns1:collection>
set mls agingtime fast 16 0
</ns1:collection>
<ns1:contiguous>false</ns1:contiguous>
<ns1:ordered>false</ns1:ordered>
<ns1:caseSensitive>false</ns1:caseSensitive>
<ns1:frequency>2</ns1:frequency>
<ns1:ignoreWhitespace>true</ns1:ignoreWhitespace>
<ns1:key type="com.bmc.bcan.dto.KeyDTO">
<ns1:keyString>458169663-121</ns1:keyString>
</ns1:key>
</ns1:subject>
<ns1:substitutionValidation>
true
</ns1:substitutionValidation>
<ns1:trigger
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:nil="true" />
<ns1:violationSeverity>5</ns1:violationSeverity>
</return>

The base type in RuleDTO has been defined as SubjectDTO. Since the type attribute is not xsi:type
in the client SubjectDTO.Factory.parse() is called which can't find the elements of sub-type

Exception in thread "main" org.apache.axis2.AxisFault: org.apache.axis2.databinding.ADBException: Unexpected subelement collection
at org.apache.axis2.AxisFault.makeFault(AxisFault.java:430)
at com.bmc.bcan.ws.service.RuleServiceStub.fromOM(RuleServiceStub.java:30216)
at com.bmc.bcan.ws.service.RuleServiceStub.getRules(RuleServiceStub.java:498)
at com.bmc.bcan.ws.test.RuleServiceTest.main(RuleServiceTest.java:39)
Caused by: java.lang.Exception: org.apache.axis2.databinding.ADBException: Unexpected subelement collection
at com.bmc.bcan.ws.service.RuleServiceStub$SubjectDTO$Factory.parse(RuleServiceStub.java:20920)
at com.bmc.bcan.ws.service.RuleServiceStub$RuleDTO$Factory.parse(RuleServiceStub.java:7711)
at com.bmc.bcan.ws.service.RuleServiceStub$GetRulesResponse$Factory.parse(RuleServiceStub.java:8372)
at com.bmc.bcan.ws.service.RuleServiceStub.fromOM(RuleServiceStub.java:30196)
... 2 more
Caused by: org.apache.axis2.databinding.ADBException: Unexpected subelement collection
at com.bmc.bcan.ws.service.RuleServiceStub$SubjectDTO$Factory.parse(RuleServiceStub.java:20914)
... 5 more

Is this a know issue. Any fix or axis services.xml parameter on the server side will be helpful.

-Balaji

Issue Links

• duplicates: AXIS2-4818 Inheritance on method parameters not working
• is cloned by: AXIS2-4766 CLONE -Subclass elements in web service response returned with type="fully qualified class name" instead of xsi:type="ns:SchemaType"