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Posted to java-user@axis.apache.org by Tudor TEUSAN <tu...@knowesis.fr> on 2004/08/24 18:09:10 UTC

Bad namespace(s) with doc/literal

It seems that AXIS (latest CVS) doesn't serialize properly complex 
objects (beans) when in doc/literal.

More precisely  it doesn't handle as it should a SOAP body with multiple 
namespaces, as shown in the following exemple :
(I've come upon this problem trying to return a tree structure from a 
web service)

The service is a TreeProvider defined as

---
class TreeProvider {
   private Node root;
   ...      
   public Node getTree(){ return root; }
   ...
}
---

Node being a very simple bean with two attributes : id and name.

---
class Node {
   private String id, name;
   public string getName(){ return name; }
   ...
}
---

Node and TreeProvider are in 2 different packages 
"com.knowesis.ws.TreeProvider" and "com.knowesis.tree.Node" (which I've 
left out for readability).
In the constructor of TreeProvider the root node is initilized as 
id="root", name="root".

The deploy.wsdd is :

---
...
<service name="TreeProvider" style="document" use="literal">  
 <namespace>urn:AthanorWS:ws</namespace>  
 <parameter name="className" value="com.knowesis.ws.TreeProvider"/>
 <parameter name="allowedMethods" value="getTree"/>

 <beanMapping xmlns:data="urn:AthanorWS:data" qname="data:Node"
    languageSpecificType="java:com.knowesis.tree.Node"/>

</service>
...
---

the service gets deployed ok (in a jboss 3.2.5 environment, but that's 
less important)
and the types section in the wsdl (auto-generated by AXIS) looks like 
this :

---
...
<wsdl:types>
   <schema elementFormDefault="qualified"
        targetNamespace="urn:AthanorWS:data"
        xmlns="http://www.w3.org/2001/XMLSchema">
      
        <complexType name="Node">
           <sequence>
               <element name="id" nillable="*true*" type="xsd:string" />
               <element name="name" nillable="*true*" type="xsd:string" />
           </sequence>
       </complexType>
   </schema>

   <schema elementFormDefault="qualified"
        targetNamespace="urn:AthanorWS:ws"
        xmlns="http://www.w3.org/2001/XMLSchema">

       <import namespace="urn:AthanorWS:data" />
       <element name="getTreeReturn" type="tns1:Node" />
   </schema>
</wsdl:types>
...
---

notice the the two namespaces (and this is how it should be) and the 
elementFormDefault="qualified" for the two schemas.
A getTree() invocation results in :

---
...
<soapenv:Body>
   <getTreeReturn xmlns="urn:AthanorWS:ws">
      <id>root</id>
      <name>root</name>
   </getTreeReturn>
</soapenv:Body>
...
---

The contents of the generated body is not valid with respect to the wsdl 
schemas.
"id" and "root" elements are in the same namespace as "getTreeReturn" 
(urn:AthanorWS:ws) instead of being in their own "urn:AthanorWS:data" 
namespace :

<getTreeReturn xmlns="urn:AthanorWS:ws">
   <id xmlns="urn:AthanorWS:data">root</id>
   <name xmlns="urn:AthanorWS:data">root</name>
</getTreeReturn>

As a direct consequence a generated .Net client simply refuses to 
deserialize the response and always returns an empty answer.

Am I doing something awfully wrong or is this a (known) bug in AXIS ?