Re: PHP5 SoapClient and Apache Axis interop

Jouni Airaksinen <jairak@starnet.fi> · Mon, 11 Apr 2005 11:45:30 +0300

We had similar problems with gSOAP and PHP5 SOAP, IF using SOAP1.2. With 
SOAP1.1 it worked fine. Difference was that namespace among and few 
small differences. Strangest thing was that the array complex type we 
were passing was intepreted by PHP SOAP Client as empty if using 1.2, 
but with 1.1 the result set was just fine.

Yes we tried pretty much everything, set PHP SOAP versions, and even 
hacking the gSOAP to return a bit different xml with some optional 
attributes.

Mark Slater wrote:
I am cross-posting this message because it contains information I  
believe will be useful to both PHP Soap users and Apache Axis users. I  
apologize for any inconvenience this may cause to those who read both  
forums.

First, I'd like to thank those who shared their experiences and gave  
their assistance... knowing that things were supposed to work is always  
a good motivator.

After I was able to get other Axis hosted web services to work with PHP  
5.0.3's SoapClient class, including the example solution I was basing  
my code off of (SpringFramework's jpetstore), I started looking at  
differences between them. The only difference I found was Axis itself.  
Axis 1.2RC3 seems to react differently (throwing a fit you might say)  
than Axis 1.1. Obviously 1.1 has been around longer, but now that 1.2  
is almost out, I'm hoping PHP's SoapClient will find a way to be  
compatible.

For the sake of any developers who might read this, here's the  
difference in the WSDL generated by Axis 1.1 and Axis 1.2RC3. The  
former works, the latter doesn't. All functions here are dummy in the  
sense that they don't rely on any external code. The addNumbers method  
will return the sum of the two parameters, changePassword ignores  
parameters and returns true, and confirmCredentials returns true if the  
username is asdf, and false otherwise. None of them work and all cause  
Axis 1.2RC3 to fail with:

2005-04-10 21:15:45,756 ERROR [StandardWrapper[/whisper-server:axis]] -  
<Servlet.service() for servlet axis threw exception>

java.lang.IncompatibleClassChangeError

        at  
org.apache.axis.message.MessageElement.addTextNode(MessageElement.java: 
1387)

        at  
org.apache.axis.message.SOAPHandler.addTextNode(SOAPHandler.java:148)

        at  
org.apache.axis.message.SOAPHandler.endElement(SOAPHandler.java:112)

        at  
org.apache.axis.encoding.DeserializationContext.endElement(Deserializati 
onContext.java:1087)

        at  
org.apache.xerces.parsers.AbstractSAXParser.endElement(Unknown Source)

        ....

        at javax.xml.parsers.SAXParser.parse(Unknown Source)

        at  
org.apache.axis.encoding.DeserializationContext.parse(DeserializationCon 
text.java:227)

        at org.apache.axis.SOAPPart.getAsSOAPEnvelope(SOAPPart.java:696)

        at org.apache.axis.Message.getSOAPEnvelope(Message.java:424)

        at  
org.apache.axis.server.AxisServer.initSOAPConstants(AxisServer.java: 345)

        at org.apache.axis.server.AxisServer.invoke(AxisServer.java:279)

        at  
org.apache.axis.transport.http.AxisServlet.doPost(AxisServlet.java:697)

        at javax.servlet.http.HttpServlet.service(HttpServlet.java:709)

        at  
org.apache.axis.transport.http.AxisServletBase.service(AxisServletBase.j 
ava:327)

        at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)

        at  
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Applica 
tionFilterChain.java:237)

        ....

        at java.lang.Thread.run(Thread.java:552)

I'm new at this, but I did notice that Axis 1.1 uses the  
xmlns:xsd="http://www.w3.org/2001/XMLSchema"; namespace for parameter  
encoding, while Axis 1.2 RC3 uses  
xmlns:soapenc="http://schemas.xmlsoap.org/soap/encoding/";. The other  
thing I noticed is that SoapClient's __getFunctions() method returned  
different values:

Axis 1.1 generated WSDL -

array(3) {  [0]=>  string(37) "int addNumbers(int $left, int $right)"   
[1]=>  string(62) "boolean confirmCredentials(string $username, string  
$password)"  [2]=>  string(79) "boolean changePassword(string  
$username, string $password, string $newPassword)" }

Axis 1.2RC3 generated WSDL -

array(3) {  [0]=>  string(37) "int addNumbers(int $left, int $right)"   
[1]=>  string(64) "boolean confirmCredentials(UNKNOWN $username,  
UNKNOWN $password)"  [2]=>  string(82) "boolean changePassword(UNKNOWN  
$username, UNKNOWN $password, UNKNOWN $newPassword)" }

Mark

=== Axis 1.1 WSDL ===

<?xml version="1.0" encoding="UTF-8"?>

<wsdl:definitions  
targetNamespace="https://localhost:8043/whisper-server/ws/UserService";  
xmlns:apachesoap="http://xml.apache.org/xml-soap";  
xmlns:impl="https://localhost:8043/whisper-server/ws/UserService";  
xmlns:intf="https://localhost:8043/whisper-server/ws/UserService";  
xmlns:soapenc="http://schemas.xmlsoap.org/soap/encoding/";  
xmlns:wsdl="http://schemas.xmlsoap.org/wsdl/";  
xmlns:wsdlsoap="http://schemas.xmlsoap.org/wsdl/soap/";  
xmlns:xsd="http://www.w3.org/2001/XMLSchema";>

  <wsdl:message name="confirmCredentialsRequest">

    <wsdl:part name="username" type="xsd:string"/>

    <wsdl:part name="password" type="xsd:string"/>

  </wsdl:message>

  <wsdl:message name="addNumbersRequest">

    <wsdl:part name="left" type="xsd:int"/>

    <wsdl:part name="right" type="xsd:int"/>

  </wsdl:message>

  <wsdl:message name="addNumbersResponse">

    <wsdl:part name="addNumbersReturn" type="xsd:int"/>

  </wsdl:message>

  <wsdl:message name="changePasswordRequest">

    <wsdl:part name="username" type="xsd:string"/>

    <wsdl:part name="password" type="xsd:string"/>

    <wsdl:part name="newPassword" type="xsd:string"/>

  </wsdl:message>

  <wsdl:message name="confirmCredentialsResponse">

    <wsdl:part name="confirmCredentialsReturn" type="xsd:boolean"/>

  </wsdl:message>

  <wsdl:message name="changePasswordResponse">

    <wsdl:part name="changePasswordReturn" type="xsd:boolean"/>

  </wsdl:message>

  <wsdl:portType name="JaxRpcUserService">

    <wsdl:operation name="addNumbers" parameterOrder="left right">

      <wsdl:input message="impl:addNumbersRequest"  
name="addNumbersRequest"/>

      <wsdl:output message="impl:addNumbersResponse"  
name="addNumbersResponse"/>

    </wsdl:operation>

    <wsdl:operation name="confirmCredentials" parameterOrder="username  
password">

      <wsdl:input message="impl:confirmCredentialsRequest"  
name="confirmCredentialsRequest"/>

      <wsdl:output message="impl:confirmCredentialsResponse"  
name="confirmCredentialsResponse"/>

    </wsdl:operation>

    <wsdl:operation name="changePassword" parameterOrder="username  
password newPassword">

      <wsdl:input message="impl:changePasswordRequest"  
name="changePasswordRequest"/>

      <wsdl:output message="impl:changePasswordResponse"  
name="changePasswordResponse"/>

    </wsdl:operation>

  </wsdl:portType>

  <wsdl:binding name="UserServiceSoapBinding"  
type="impl:JaxRpcUserService">

    <wsdlsoap:binding style="rpc"  
transport="http://schemas.xmlsoap.org/soap/http"/>

    <wsdl:operation name="addNumbers">

      <wsdlsoap:operation soapAction=""/>

      <wsdl:input name="addNumbersRequest">

        <wsdlsoap:body  
encodingStyle="http://schemas.xmlsoap.org/soap/encoding/";  
namespace="http://rpc.whisper.ucsc.edu"; use="encoded"/>

      </wsdl:input>

      <wsdl:output name="addNumbersResponse">

        <wsdlsoap:body  
encodingStyle="http://schemas.xmlsoap.org/soap/encoding/";  
namespace="https://localhost:8043/whisper-server/ws/UserService";  
use="encoded"/>

      </wsdl:output>

    </wsdl:operation>

    <wsdl:operation name="confirmCredentials">

      <wsdlsoap:operation soapAction=""/>

      <wsdl:input name="confirmCredentialsRequest">

        <wsdlsoap:body  
encodingStyle="http://schemas.xmlsoap.org/soap/encoding/";  
namespace="http://rpc.whisper.ucsc.edu"; use="encoded"/>

      </wsdl:input>

      <wsdl:output name="confirmCredentialsResponse">

        <wsdlsoap:body  
encodingStyle="http://schemas.xmlsoap.org/soap/encoding/";  
namespace="https://localhost:8043/whisper-server/ws/UserService";  
use="encoded"/>

      </wsdl:output>

    </wsdl:operation>

    <wsdl:operation name="changePassword">

      <wsdlsoap:operation soapAction=""/>

      <wsdl:input name="changePasswordRequest">

        <wsdlsoap:body  
encodingStyle="http://schemas.xmlsoap.org/soap/encoding/";  
namespace="http://rpc.whisper.ucsc.edu"; use="encoded"/>

      </wsdl:input>

      <wsdl:output name="changePasswordResponse">

        <wsdlsoap:body  
encodingStyle="http://schemas.xmlsoap.org/soap/encoding/";  
namespace="https://localhost:8043/whisper-server/ws/UserService";  
use="encoded"/>

      </wsdl:output>

    </wsdl:operation>

  </wsdl:binding>

  <wsdl:service name="JaxRpcUserServiceService">

    <wsdl:port binding="impl:UserServiceSoapBinding" name="UserService">

      <wsdlsoap:address  
location="https://localhost:8043/whisper-server/ws/UserService"/>

    </wsdl:port>

  </wsdl:service>

</wsdl:definitions>

=== Axis 1.1 (end) ===

=== Axis 1.2RC3 WSDL ===

<?xml version="1.0" encoding="UTF-8"?>

<wsdl:definitions  
targetNamespace="https://localhost:8043/whisper-server/ws/UserService";  
xmlns:apachesoap="http://xml.apache.org/xml-soap";  
xmlns:impl="https://localhost:8043/whisper-server/ws/UserService";  
xmlns:intf="https://localhost:8043/whisper-server/ws/UserService";  
xmlns:soapenc="http://schemas.xmlsoap.org/soap/encoding/";  
xmlns:wsdl="http://schemas.xmlsoap.org/wsdl/";  
xmlns:wsdlsoap="http://schemas.xmlsoap.org/wsdl/soap/";  
xmlns:xsd="http://www.w3.org/2001/XMLSchema";>

<!--WSDL created by Apache Axis version: 1.2RC3

Built on Feb 28, 2005 (10:15:14 EST)-->

   <wsdl:message name="confirmCredentialsRequest">

      <wsdl:part name="username" type="soapenc:string"/>

      <wsdl:part name="password" type="soapenc:string"/>

   </wsdl:message>

   <wsdl:message name="addNumbersRequest">

      <wsdl:part name="left" type="xsd:int"/>

      <wsdl:part name="right" type="xsd:int"/>

   </wsdl:message>

   <wsdl:message name="addNumbersResponse">

      <wsdl:part name="addNumbersReturn" type="xsd:int"/>

   </wsdl:message>

   <wsdl:message name="changePasswordRequest">

      <wsdl:part name="username" type="soapenc:string"/>

      <wsdl:part name="password" type="soapenc:string"/>

      <wsdl:part name="newPassword" type="soapenc:string"/>

   </wsdl:message>

   <wsdl:message name="confirmCredentialsResponse">

      <wsdl:part name="confirmCredentialsReturn" type="xsd:boolean"/>

   </wsdl:message>

   <wsdl:message name="changePasswordResponse">

      <wsdl:part name="changePasswordReturn" type="xsd:boolean"/>

   </wsdl:message>

   <wsdl:portType name="JaxRpcUserService">

      <wsdl:operation name="addNumbers" parameterOrder="left right">

         <wsdl:input message="impl:addNumbersRequest"  
name="addNumbersRequest"/>

         <wsdl:output message="impl:addNumbersResponse"  
name="addNumbersResponse"/>

      </wsdl:operation>

      <wsdl:operation name="confirmCredentials"  
parameterOrder="username password">

         <wsdl:input message="impl:confirmCredentialsRequest"  
name="confirmCredentialsRequest"/>

         <wsdl:output message="impl:confirmCredentialsResponse"  
name="confirmCredentialsResponse"/>

      </wsdl:operation>

      <wsdl:operation name="changePassword" parameterOrder="username  
password newPassword">

         <wsdl:input message="impl:changePasswordRequest"  
name="changePasswordRequest"/>

         <wsdl:output message="impl:changePasswordResponse"  
name="changePasswordResponse"/>

      </wsdl:operation>

   </wsdl:portType>

   <wsdl:binding name="UserServiceSoapBinding"  
type="impl:JaxRpcUserService">

      <wsdlsoap:binding style="rpc"  
transport="http://schemas.xmlsoap.org/soap/http"/>

      <wsdl:operation name="addNumbers">

         <wsdlsoap:operation soapAction=""/>

         <wsdl:input name="addNumbersRequest">

            <wsdlsoap:body  
encodingStyle="http://schemas.xmlsoap.org/soap/encoding/";  
namespace="http://rpc.whisper.ucsc.edu"; use="encoded"/>

         </wsdl:input>

         <wsdl:output name="addNumbersResponse">

            <wsdlsoap:body  
encodingStyle="http://schemas.xmlsoap.org/soap/encoding/";  
namespace="https://localhost:8043/whisper-server/ws/UserService";  
use="encoded"/>

         </wsdl:output>

      </wsdl:operation>

      <wsdl:operation name="confirmCredentials">

         <wsdlsoap:operation soapAction=""/>

         <wsdl:input name="confirmCredentialsRequest">

            <wsdlsoap:body  
encodingStyle="http://schemas.xmlsoap.org/soap/encoding/";  
namespace="http://rpc.whisper.ucsc.edu"; use="encoded"/>

         </wsdl:input>

         <wsdl:output name="confirmCredentialsResponse">

            <wsdlsoap:body  
encodingStyle="http://schemas.xmlsoap.org/soap/encoding/";  
namespace="https://localhost:8043/whisper-server/ws/UserService";  
use="encoded"/>

         </wsdl:output>

      </wsdl:operation>

      <wsdl:operation name="changePassword">

         <wsdlsoap:operation soapAction=""/>

         <wsdl:input name="changePasswordRequest">

            <wsdlsoap:body  
encodingStyle="http://schemas.xmlsoap.org/soap/encoding/";  
namespace="http://rpc.whisper.ucsc.edu"; use="encoded"/>

         </wsdl:input>

         <wsdl:output name="changePasswordResponse">

            <wsdlsoap:body  
encodingStyle="http://schemas.xmlsoap.org/soap/encoding/";  
namespace="https://localhost:8043/whisper-server/ws/UserService";  
use="encoded"/>

         </wsdl:output>

      </wsdl:operation>

   </wsdl:binding>

   <wsdl:service name="JaxRpcUserServiceService">

      <wsdl:port binding="impl:UserServiceSoapBinding"  name="UserService">

         <wsdlsoap:address  
location="https://localhost:8043/whisper-server/ws/UserService"/>

      </wsdl:port>

   </wsdl:service>

</wsdl:definitions>
=== Axis 1.2RC3 (end) ===

--
-Jouni

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