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BGTranslator end to end scenario

Author: Lukas Jungmann
Last update: $Date: 2006/07/14 11:07:17 $, $Revision: 1.6 $
Introduction:

This end to end scenario should test Web service client creation. The scenario covers developing of web service client (IDE-generated static stub).
The document is not intended as test specification for these features but describes developing web service client in NetBeans 5.5 (version for NetBeans 5.0 can be found here)

Creating web project
Creating web service client
Testing web service
Implementing index.jsp
Running application

BgTrans sources are avalaible here.

Creating web project

Go to File - New Project - Web - Web Application
Specify BgTrans as Project Name
Specify project's directory
Select Sun App server as target server
Choose J2EE 1.4 as J2EE version and
Click Finish

Creating web service client

Go to File - New File - Web services - Web Service Client - Next
Specify http://www.progem.bg/BGTrans/services.wsdl as WSDL URL
Optional: if you're behind proxy check its settings via Set Proxy ... button
Specify package for the client, eg. org.netbeans.end2end.bgtrans.client
Select IDE-generated static stub as client type
Click Finish

Testing web service

Go to Web Services References - SOAP - SOAPPort - BGTranslate and invoke Test Operation
from context menu of BGTranslate node

In Test Web Service Operation dialog set word to Hello
Click Submit
You should see following "picture"

Test several others translations
Click Close

Implementing index.jsp

Open index.jsp code in editor

Create form for user input somewhere between the <body> tags

        <form action="index.jsp" method="get">
            Enter some english word: <input type="text" name="word" /> <button type="submit">Translate</button>
        </form>

Created form should look like:
Right-click somewhere in index.jsp and invoke Web Service Client Resources - Call Web Service Operation

Select BGTranslate and click OK button - now IDE generates webservice invokation code with some comments at the end of the page:

    <%-- start web service invocation --%>
    <h4>SOAP invocation:</h4>
    <hr/>
    <%
    // TODO compute web service operation arguments here, e.g.:
    // String arg0 = request.getParameter("arg0");
    try {
        org.netbeans.end2end.bgtrans.client.SOAP sOAP = new org.netbeans.end2end.bgtrans.client.SOAP_Impl();
        org.netbeans.end2end.bgtrans.client.SOAPPortType sOAPPort = sOAP.getSOAPPort();
        out.println("result = "+
            sOAPPort.BGTranslate(/* TODO enter operation arguments*/));
    } catch(javax.xml.rpc.ServiceException ex) {
        // TODO handle ServiceException
    } catch(java.rmi.RemoteException ex) {
        // TODO handle remote exception
    } catch(Exception ex) {
        // TODO handle custom exceptions here
    }
    %>
    <hr/><%-- end web service invocation--%>

And now we have to customize this code to fit our needs. Final version our this can look like eg.:

                
<%@page contentType="text/html"%>
<%@page pageEncoding="UTF-8"%>
<%@page import="java.io.PrintWriter"%>
<%
    String word = request.getParameter("word");
    String result = null;
%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
   "http://www.w3.org/TR/html4/loose.dtd">
<html>
    <head>
        <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
        <title>English -> Bulgarian translator</title>
    </head>
    <body>
        <h1>Welcome to English -> Bulgarian translator</h1>
<%
        if (word != null) {
            try {
                org.netbeans.end2end.bgtrans.client.SOAP sOAP = new org.netbeans.end2end.bgtrans.client.SOAP_Impl();
                org.netbeans.end2end.bgtrans.client.SOAPPortType sOAPPort = sOAP.getSOAPPort();
                result = sOAPPort.BGTranslate(word);
                int i = result.lastIndexOf("-Found-");
                if (i > 0) {
                    result = result.substring(0, i).replace("\\n", " ").trim();
                }
            } catch (javax.xml.rpc.ServiceException ex) {
                // TODO handle ServiceException
                ex.printStackTrace(new PrintWriter(out));
            } catch (java.rmi.RemoteException ex) {
                // TODO handle remote exception
                ex.printStackTrace(new PrintWriter(out));
            } catch (Exception ex) {
                // TODO handle custom exceptions here
                ex.printStackTrace(new PrintWriter(out));
            } %>
            <p>
        <strong><%= word %></strong> in english is:<br/>
             "<%= result %>" in bulgarian.</p>
<%
        } else {
%>
        <form action="index.jsp" method="get">
            Enter some english word: <input type="text" name="word" /> <button type="submit">Translate</button>
        </form>
<%
        }
%>
    </body>
</html>