WSDL 2.0 Component Model

WSDL Tutorials - Herong's Tutorial Examples

∟WSDL 20 Programming APIs and Testing Tools

∟WSDL 2.0 Component Model - Test

This section provided a tutorial example on how to create a WSDLReader to parse a WSDL 2.0 document into WSDL component objects.

To see how the Component model works, I wrote this testing program to parse my WSDL 2.0 document, Hello_WSDL_20_SOAP.wsdl, into components:

/**
 * WodenHelloComponent.java
 * Copyright (c) 2009 by Dr. Herong Yang, herongyang.com
 * All rights reserved
 */
import java.io.PrintStream;
import org.apache.woden.WSDLFactory;
import org.apache.woden.WSDLReader;
import org.apache.woden.wsdl20.Description;
import org.apache.woden.wsdl20.Service;
import org.apache.woden.wsdl20.Binding;
import org.apache.woden.wsdl20.Interface;
import org.apache.woden.wsdl20.InterfaceOperation;
import org.apache.woden.wsdl20.ElementDeclaration;
import org.apache.woden.wsdl20.TypeDefinition;
class WodenHelloComponent {
   public static void main(String[] args) {
      PrintStream out = System.out;
      String wsdl = "file:///C:/herong/Hello_WSDL_20_SOAP.wsdl";

      try {
      	
// Loading the WSDL 2.0 document
         WSDLFactory wFactory = WSDLFactory.newInstance();
         WSDLReader wReader = wFactory.newWSDLReader();
         wReader.setFeature(WSDLReader.FEATURE_VALIDATION, true);
         Description wDescription = wReader.readWSDL(wsdl);

// Implementation class information
         out.println("Reader object: "
            +wReader.getClass().getName());
         out.println("Description object: "
            +wDescription.getClass().getName());

// Getting WSDL 2.0 document components
         Service[] serviceList = wDescription.getServices();
         out.println("First service name: "
            +serviceList[0].getName());
  
         Binding[] bindingList = wDescription.getBindings();
         out.println("First binding name: "
            +bindingList[0].getName());
         out.println("First binding type: "
            +bindingList[0].getType().toString());

         Interface[] interfaceList = wDescription.getInterfaces();
         out.println("First interface name: "
            +interfaceList[0].getName());

         InterfaceOperation[] operationList 
            = interfaceList[0].getInterfaceOperations();
         out.println("First operation name: "
            +operationList[0].getName());
         out.println("First operation pattern: "
            +operationList[0].getMessageExchangePattern().toString());
         out.println("First operation style: "
            +operationList[0].getStyle()[0].toString());
            
         ElementDeclaration[] elementList 
            = wDescription.getElementDeclarations();
         out.println("# of element declarations: "
            +elementList.length);
         out.println("First element name: "
            +elementList[0].getName());

         TypeDefinition[] typeList 
            = wDescription.getTypeDefinitions();
         out.println("# of type definitions: "
            +typeList.length);
         out.println("First type name: "
            +typeList[0].getName());
 
      } catch (Exception e) {
         e.printStackTrace(); 
      }
   }
}

Result of this test program is listed below:

C:\herong>\local\jdk\bin\java -Djava.ext.dirs=\local\axis2\lib\
   WodenHelloComponent

Reader object: org.apache.woden.internal.DOMWSDLReader
Description object: org.apache.woden.internal.wsdl20.DescriptionImpl
First service name: {http://www.herongyang.com/Service/}helloService
First binding name: {http://www.herongyang.com/Service/}helloBinding
First binding type: http://www.w3.org/ns/wsdl/soap
First interface name: {http://www.herongyang.com/Service/}helloInterface
First operation name: {http://www.herongyang.com/Service/}Hello
First operation pattern: http://www.w3.org/ns/wsdl/in-out
First operation style: http://www.w3.org/ns/wsdl/style/iri
# of element declarations: 2
First element name: {http://www.herongyang.com/Service/}HelloResponse
# of type definitions: 44
First type name: {http://www.w3.org/2001/XMLSchema}ENTITIES

No surprises, except the list of type definitions. My WSDL document does not define any types explicitly. But WSDL 2.0 automatically inherited 44 types defined in the XML Schema.

Last update: 2009.

Table of Contents

About This Book

Introduction to WSDL 2.0

WSDL 2.0 Document Structure and Syntax

WSDL Version 2.0 Part 2: Adjuncts

WSDL 2.0 Document Examples with SOAP Binding

►WSDL 20 Programming APIs and Testing Tools

List of APIs and Tools

ServiceClient Class Loading WSDL 2.0 Documents

WSDL2Java Converting WSDL 2.0 Documents to Stub Classes

What Is Woden 1.0?