RE: RESTful Web Services using Axis2 and Mapped JSON

[Hodchenkov, Paul]

Please vote for https://issues.apache.org/jira/browse/AXIS2-5158

Workaround:
Insert Spring JSON/Rest service between client and axis2 as a proxy.

From: Yashwanth Rajaram -X (yrajaram - ZENSAR TECHNOLOGIES INC at Cisco) 
[mailto:yraja...@cisco.com]
Sent: Sunday, November 13, 2011 8:45 AM
To: java-user@axis.apache.org
Subject: RE: RESTful Web Services using Axis2 and Mapped JSON

We are also struggling with this ... seems like converting JSON payload to 
Axis' internal notation is the issue...
If you make this work pls share a sample...

thanks,
--
Yashwanth

From: Public Network Services [mailto:publicnetworkservi...@gmail.com]
Sent: Saturday, November 12, 2011 4:41 AM
To: java-user@axis.apache.org
Subject: RESTful Web Services using Axis2 and Mapped JSON

Hi...

I have been trying for days now to implement a simple REST web service using 
Axis 1.6.2 in Jetty 8.0.4, with serialization and deserialization in JSON, but 
with limited success: all the code works fine with SOAP, but not with REST. So, 
any help is very welcome.

For start, I am trying to make the sample "MyService" in 
samples/userguide/example1 work with samples/userguide/clients/RESTClient. The 
service works fine with SOAP, but after adding

options.setProperty(Constants.Configuration.ENABLE_REST, Constants.VALUE_TRUE);

it stops working, returning a cryptic AxisFault message referring to a 
NullPointerException, without any further information.

I am aware of issue 5158 (https://issues.apache.org/jira/browse/AXIS2-5158), 
but the services.xml file in the repository/services/sample-MyService.aar 
archive already uses the required RawXMLINOutMessageReceiver and I have 
declared "application/json" in both the client and the service axis2.xml 
configuration file.

TCPMon shows that the request is transmitted in proper Mapped JSON (I don't 
want Badgerfish) but, as already mentioned, an AxisFault is returned.

I need to make this thing work asap and have run out of ideas. Any clues?

Thanks!

PS: These are the formatting statements in my axis2.xml files (client and 
service sides).

    <!-- ================================================= -->
    <!-- Message Receivers -->
    <!-- ================================================= -->
    <messageReceivers>
        <messageReceiver mep="http://www.w3.org/2004/08/wsdl/in-only";
                         
class="org.apache.axis2.receivers.RawXMLINOnlyMessageReceiver"/>
        <messageReceiver mep="http://www.w3.org/2004/08/wsdl/in-out";
                         
class="org.apache.axis2.receivers.RawXMLINOutMessageReceiver"/>
        <messageReceiver mep="http://www.w3.org/2006/01/wsdl/in-only";
                         
class="org.apache.axis2.receivers.RawXMLINOnlyMessageReceiver"/>
        <messageReceiver mep="http://www.w3.org/2006/01/wsdl/in-out";
                         
class="org.apache.axis2.receivers.RawXMLINOutMessageReceiver"/>
        <messageReceiver mep="http://www.w3.org/ns/wsdl/in-only";
                         
class="org.apache.axis2.receivers.RawXMLINOnlyMessageReceiver"/>
        <messageReceiver mep="http://www.w3.org/ns/wsdl/in-out";
                         
class="org.apache.axis2.receivers.RawXMLINOutMessageReceiver"/>
    </messageReceivers>

    <!-- ================================================= -->
    <!-- Message Formatter -->
    <!-- ================================================= -->
    <messageFormatters>
          <messageFormatter contentType="application/json"
                          class="org.apache.axis2.json.JSONMessageFormatter"/>
        <messageFormatter contentType="application/x-www-form-urlencoded"
                          
class="org.apache.axis2.transport.http.XFormURLEncodedFormatter"/>
        <messageFormatter contentType="multipart/form-data"
                          
class="org.apache.axis2.transport.http.MultipartFormDataFormatter"/>
        <messageFormatter contentType="application/xml"
                          
class="org.apache.axis2.transport.http.ApplicationXMLFormatter"/>
        <messageFormatter contentType="text/xml"
                          
class="org.apache.axis2.transport.http.SOAPMessageFormatter"/>
        <messageFormatter contentType="application/soap+xml"
                          
class="org.apache.axis2.transport.http.SOAPMessageFormatter"/>
    </messageFormatters>

    <!-- ================================================= -->
    <!-- Message Builders -->
    <!-- ================================================= -->
    <messageBuilders>
        <messageBuilder contentType="application/json"
                        class="org.apache.axis2.json.JSONOMBuilder"/>
        <messageBuilder contentType="application/xml"
                        class="org.apache.axis2.builder.ApplicationXMLBuilder"/>
        <messageBuilder contentType="application/x-www-form-urlencoded"
                        
class="org.apache.axis2.builder.XFormURLEncodedBuilder"/>
        <messageBuilder contentType="multipart/form-data"
                        
class="org.apache.axis2.builder.MultipartFormDataBuilder"/>
    </messageBuilders>