AppFuseXFireOpenLaszlo

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Short example on how to use OpenLaszlo with SOAP / XFire and AppFuse

This is a tech demo showing how to load a list of users via Laszlo/SOAP from a AppFuse application. It contains NO security relevant stuff like authentication.

Download the latest openlaszlo version"

• Go to http://www.openlaszlo.org/download/ and look for the "Only Servlet" version

Install the OpenLaszlo war

• Copy the war file in your tomcat webapps directory and start up your tomcat
• Check, if OpenLaszlo works

Exposing the UserManager as WebService

• Execute the AppFuse + XFire Tutorial
• Redeploy your application with the new WebService
• Check, if the WebService is up and running (e.g. goto http://{yourhost}:{yourport}/{yourappname}/services/UserService?wsdl)

Create a laszlo page

• Create a page called called userlist.lyx in the openlaszlo webapp folder
• Add the following content to the file:

<canvas debug="true" height="530">

    <debug x="15" y="15" width="215" height="500" />

	<dataset name="userDset" />
    <soap name="userlist" wsdl="http://localhost:8080/appfuse/services/UserService?wsdl"> <!-- Link to your WebService -->

	<!-- Method to make a document for SOAP message request -->
        <method name="makegetUsersDoc">
        <![CDATA[
            var s =  '<getUsers xmlns="http://service.appfuse.org/" ><User></User></getUsers>';
            Debug.write(s);
            return s;
        ]]>
        </method>


        <method event="onload"><!-- Only debugging -->
            Debug.write('UserList soap service loaded');
            Debug.write('Compare proxy stubs with WSDL SOAP operations.');
            Debug.write('UserList WSDL at ' + this.wsdl);            
            Debug.write('proxy:');
            Debug.inspect(this.proxy);
        </method>

        <method event="onerror" args="error"><!-- Error handling -->
            Debug.write('error:', error);
        </method>

        <method event="ontimeout" args="error"><!-- Timeout handling -->
            Debug.write('timeout:', error);
        </method>
        

 	    <remotecall funcname="getUsers" dataobject="userDset"><!-- Method to load users via SOAP -->
            <param value="${ canvas.userlist.makegetUsersDoc() }" />
                    <method event="ondata" args="value">
			            Debug.write("Got data!");
			            Debug.inspect(userDset);
			        </method>
        </remotecall>
      
     </soap>
    
    <view layout="spacing: 5" >
        <button text="Load users" onclick="canvas.userlist.getUsers.invoke()" />
        <view bgcolor="yellow" layout="axis: y" >
            <view layout="axis: x" >
               <datapath xpath="userDset:/item/getUsersResponse/out/User" pooling="true" /><!-- Some attributes of a User object -->
                <text width="100" datapath="username/text()" clip="true" />
                <text width="100" datapath="firstName/text()" clip="true" />
                <text width="100" datapath="lastName/text()" clip="true" />
                <text width="100" datapath="address/adress/text()" clip="true" />
                <text width="100" datapath="address/city/text()" clip="true" />
                <text width="100" datapath="address/province/text()" clip="true" />
                <text width="100" datapath="address/country/text()" clip="true" />
                <text width="100" datapath="address/postalCode/text()" clip="true" />
            </view>
    </view>
    </view>
    
    

</canvas>

• Replace the URL in the line

<soap name="userlist" wsdl="http://localhost:8080/appfuse/services/UserService?wsdl">

Test your new Laszlo App

• Open a browser and go to the new laszlo file (e.g. http://localhost:8080/openlaszlo-3.1.1-servlet/userlist.lyx)
• In the debug window you can see all methods exposed by the UserService
• Click on the Load users button to load the users via SOAP ;)

Links

• The laszlo page is a modification of a laszlo help page (which can be founbd here)
• OpenLaszlo Eclipse PlugIn