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The Calculator interface defines the Service Endpoint Interface (SEI) for the Web Service.

Code Block

	java
	java
borderStyle	solid
title	Calculator.javajava

package org.apache.geronimo.samples.jws;

import javax.jws.WebMethod;
import javax.jws.WebParam;
import javax.jws.WebResult;
import javax.jws.WebService;
import javax.xml.ws.RequestWrapper;
import javax.xml.ws.ResponseWrapper;

@WebService(name = "CalculatorPortType",
        targetNamespace = "http://jws.samples.geronimo.apache.org")
public interface Calculator {

    /**
     * @param value1
     * @param value2
     * @return returns int
     */
    @WebMethod(operationName = "add")
    @WebResult(name = "return", targetNamespace = "http://jws.samples.geronimo.apache.org")
    @RequestWrapper(localName = "add", targetNamespace = "http://jws.samples.geronimo.apache.org", className = "org.apache.geronimo.samples.jws.Add")
    @ResponseWrapper(localName = "addResponse", targetNamespace = "http://jws.samples.geronimo.apache.org", className = "org.apache.geronimo.samples.jws.AddResponse")
    public int add(@WebParam(name = "value1", targetNamespace = "http://jws.samples.geronimo.apache.org")int value1,
                   @WebParam(name = "value2", targetNamespace = "http://jws.samples.geronimo.apache.org")int value2);

}

The CalculatorService class implements the Web Service business logic. It implements all the methods defined in the SEI. The class does not need to implement the Calculator interface but must reference it through the @WebService.endpointInterface annotation. This class will be exposed as a Servlet through web.xml file even though it does not extend the javax.servlet.Servlet class.
The context variable marked with the @Resource annotation will be injected at runtime. The WebServiceContext can be used to obtain the message context and security information relative to the call.

Code Block

	java
	java
borderStyle	solid
title	CalculatorService.javajava

package org.apache.geronimo.samples.jws;

import javax.annotation.Resource;
import javax.jws.WebService;
import javax.xml.ws.WebServiceContext;

@WebService(serviceName = "Calculator",
        portName = "CalculatorPort",
        endpointInterface = "org.apache.geronimo.samples.jws.Calculator",
        targetNamespace = "http://jws.samples.geronimo.apache.org",
        wsdlLocation = "WEB-INF/wsdl/CalculatorService.wsdl")
public class CalculatorService implements Calculator {

    @Resource
    private WebServiceContext context;

    /**
     * @return returns javax.xml.ws.WebServiceContext
     */
    public WebServiceContext getContext() {
        return context;
    }

    /**
     * @param value1
     * @param value2
     * @return returns int
     */
    public int add(int value1, int value2) {
        System.out.println("User Principal: " + context.getUserPrincipal());
        System.out.println("value1: " + value1 + " value2: " + value2);
        return value1 + value2;
    }
}

The web.xml descriptor is used to deploy the Web Service.

Code Block

	xml
	xml
borderStyle	solid
title	web.xml	xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://java.sun.com/xml/ns/javaee" version="2.5">
    <servlet>
	<display-name>CalculatorService</display-name>
	<servlet-name>CalculatorService</servlet-name>
	<servlet-class>
	    org.apache.geronimo.samples.jws.CalculatorService
	</servlet-class>
    </servlet>
	
    <servlet-mapping>
	<servlet-name>CalculatorService</servlet-name>
	<url-pattern>/calculator</url-pattern>
    </servlet-mapping>	

    .....

    <service-ref>
        <service-ref-name>services/Calculator</service-ref-name>
        <service-interface>javax.xml.ws.Service</service-interface>
        <wsdl-file>WEB-INF/wsdl/CalculatorService.wsdl</wsdl-file>
    </service-ref>
</web-app>

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The geronimo plan has no information for the web service but does specify more information for the service-ref for the jsp client. For tomcat, the plan can be located after building the project in jaxws-calculator/jaxws-calculator-tomcat/target/resources/META-INF/plan.xml. For Jetty, the plan can be located after building the project in jaxws-calculator/jaxws-calculator-jetty/target/resources/META-INF/plan.xml.

Code Block

	xml
	xml
borderStyle	solid
title	geronimo-web.xml for tomcatxml

<web-app xmlns="http://geronimo.apache.org/xml/ns/j2ee/web-1.1">
  <dep:environment xmlns:dep="http://geronimo.apache.org/xml/ns/deployment-1.2">
    <dep:moduleId>
      <dep:groupId>org.apache.geronimo.samples</dep:groupId>
      <dep:artifactId>jaxws-calculator-tomcat</dep:artifactId>
      <dep:version>2.1.2-SNAPSHOT</dep:version>
      <dep:type>car</dep:type>
    </dep:moduleId>
    <dep:dependencies>
      <dep:dependency>
        <dep:groupId>org.apache.geronimo.configs</dep:groupId>
        <dep:artifactId>jasper</dep:artifactId>
        <dep:version>2.1.2-SNAPSHOT</dep:version>
        <dep:type>car</dep:type>
      </dep:dependency>
      <dep:dependency>
        <dep:groupId>org.apache.geronimo.configs</dep:groupId>
        <dep:artifactId>tomcat6</dep:artifactId>
        <dep:version>2.1.2-SNAPSHOT</dep:version>
        <dep:type>car</dep:type>
      </dep:dependency>
      <dep:dependency>
        <dep:groupId>org.apache.geronimo.configs</dep:groupId>
        <dep:artifactId>axis2</dep:artifactId>
        <dep:version>2.1.2-SNAPSHOT</dep:version>
        <dep:type>car</dep:type>
      </dep:dependency>
    </dep:dependencies>
    <dep:hidden-classes/>
    <dep:non-overridable-classes/>
  </dep:environment>
  <context-root>/jaxws-calculator</context-root>
  <service-ref>
    <service-ref-name>services/Calculator</service-ref-name>
    <port>
      <port-name>CalculatorPort</port-name>
      <protocol>http</protocol>
      <host>localhost</host>
      <port>8080</port>
      <uri>/jaxws-calculator/calculator</uri>
    </port>
  </service-ref>
</web-app>

...

The following WSDL file describes the Web Service:

Code Block

	xml
	xml
borderStyle	solid
title	CalculatorService.wsdl	xml

<?xml version="1.0" encoding="UTF-8"?>
<wsdl:definitions name="Calculator"
    xmlns="http://schemas.xmlsoap.org/wsdl/"
    xmlns:soap="http://schemas.xmlsoap.org/wsdl/soap/"
    xmlns:wsdl="http://schemas.xmlsoap.org/wsdl/"
    xmlns:xsd="http://www.w3.org/2001/XMLSchema"
    targetNamespace="http://jws.samples.geronimo.apache.org"
    xmlns:tns="http://jws.samples.geronimo.apache.org">

    <wsdl:types>
        <xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema" 
                    xmlns="http://jws.samples.geronimo.apache.org" 
                    targetNamespace="http://jws.samples.geronimo.apache.org"
                    attributeFormDefault="unqualified" elementFormDefault="qualified">

             <xsd:element name="add">
                <xsd:complexType>
                   <xsd:sequence>
                      <xsd:element name="value1" type="xsd:int"/>
                      <xsd:element name="value2" type="xsd:int"/>
                   </xsd:sequence>
                </xsd:complexType>
             </xsd:element>

             <xsd:element name="addResponse">
                <xsd:complexType>
                   <xsd:sequence>
                      <xsd:element name="return" type="xsd:int"/>
                   </xsd:sequence>
                </xsd:complexType>
             </xsd:element>
        </xsd:schema>
    </wsdl:types>
  
    <wsdl:message name="add">
       <wsdl:part name="add" element="tns:add"/>
    </wsdl:message>

    <wsdl:message name="addResponse">
       <wsdl:part name="addResponse" element="tns:addResponse"/>
    </wsdl:message>

    <wsdl:portType name="CalculatorPortType">
       <wsdl:operation name="add">
         <wsdl:input name="add" message="tns:add"/>
         <wsdl:output name="addResponse" message="tns:addResponse"/>
       </wsdl:operation>
    </wsdl:portType>
        
    <wsdl:binding name="CalculatorSoapBinding" type="tns:CalculatorPortType">
        <soap:binding style="document" transport="http://schemas.xmlsoap.org/soap/http"/>
        
        <wsdl:operation name="add">
            <soap:operation soapAction="add" style="document"/>
            <wsdl:input name="add">
                <soap:body use="literal"/>
            </wsdl:input>
            <wsdl:output name="addResponse">
                <soap:body use="literal"/>
            </wsdl:output>
        </wsdl:operation>
                
    </wsdl:binding>
  
    <wsdl:service name="Calculator">
        <wsdl:port name="CalculatorPort" binding="tns:CalculatorSoapBinding">
            <soap:address location="http://localhost:8080/jaxws-calculator/calculator"/>
        </wsdl:port>
    </wsdl:service>
      
</wsdl:definitions>

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The add.jsp is a basic client for the CalculatorService Web Service.

Code Block

	java
	java
borderStyle	solid
title	add.jspjava

<%@ page language="java" contentType="text/html; charset=ISO-8859-1" pageEncoding="ISO-8859-1"%>
<%@ page import="javax.naming.InitialContext" %>
<%@ page import="javax.xml.ws.Service" %>
<%@ page import="org.apache.geronimo.samples.jws.Calculator" %>
<html  xmlns="http://www.w3.org/1999/xhtml" xml:lang="en">
<head>
  <title>Apache Geronimo Sample Application - JAX-WS Calculator</title>
  <meta content="text/html; CHARSET=iso-8859-1" http-equiv="Content-Type">
</head>

<BODY>
  <font face="Verdana, Helvetica, Arial">

    <h3>This is a JAX-WS web service sample application.   Please type the value 1 and value 2 below to see the add result.</h3>
    <form action="add.jsp">
        Value 1: <input type="text" name="value1">   Value 2: <input type="text" name="value2"> <input type="submit" value="Add">
    </form>
    <br>
<%
    String value1 = request.getParameter( "value1" );
    String value2 = request.getParameter( "value2" );

    if (value1 != null && value1.trim().length() > 0 &&
        value2 != null && value2.trim().length() > 0) {

        out.println("<h4>");

        try {
            int v1 = Integer.parseInt(value1);
            int v2 = Integer.parseInt(value2);
    
            InitialContext ctx = new InitialContext();
            Service service = (Service)ctx.lookup("java:comp/env/services/Calculator");
            Calculator calc = service.getPort(Calculator.class);         
            int sum = calc.add(v1, v2);
            out.println("Result: " + v1 + " + " + v2 + " = " + sum);
        } catch ( Exception e ) {
            out.println("Error: " + e.getMessage());
       }

       out.println("</h4>");
    }
%>

  </FONT>
</body>
</html>

The add.jsp looks up a Web Service reference in the JNDI tree. The Web Service reference must first be added the web.xml file.

Code Block

	xml
	xml
borderStyle	solid
title	web.xmlxml

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://java.sun.com/xml/ns/javaee" version="2.5">
        .....

        <service-ref>
            <service-ref-name>services/Calculator</service-ref-name>
            <service-interface>javax.xml.ws.Service</service-interface>
            <wsdl-file>WEB-INF/wsdl/CalculatorService.wsdl</wsdl-file>
        </service-ref>

        .....
</web-app>

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