wsdlservice.java

开发owl的API,提供了W3C规定标准接口,是目前比较少的API.

// The MIT License
//
// Copyright (c) 2004 Evren Sirin
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to
// deal in the Software without restriction, including without limitation the
// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
// sell copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
// IN THE SOFTWARE.

package org.mindswap.wsdl;

import java.util.HashMap;
import java.util.Hashtable;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.Vector;

import javax.wsdl.Binding;
import javax.wsdl.Message;
import javax.wsdl.Operation;
import javax.wsdl.Port;
import javax.wsdl.Service;
import javax.wsdl.extensions.soap.SOAPAddress;
import javax.xml.namespace.QName;

import org.apache.axis.client.Call;
import org.apache.axis.wsdl.gen.Parser;
import org.apache.axis.wsdl.symbolTable.BindingEntry;
import org.apache.axis.wsdl.symbolTable.Parameter;
import org.apache.axis.wsdl.symbolTable.Parameters;
import org.apache.axis.wsdl.symbolTable.ServiceEntry;
import org.apache.axis.wsdl.symbolTable.SymTabEntry;
import org.apache.axis.wsdl.symbolTable.SymbolTable;
import org.w3c.dom.Node;


/**
 * Represents a WSDL service
 * 
 * @author Evren Sirin
 */
public class WSDLService {
	public static boolean DEBUG = false;
	//private boolean USE_TCPMON = false;

    private Parser wsdlParser = null;
    private String uri = null;
	
	private Hashtable  operations = new Hashtable();
		
    public WSDLService(String wsdlURL) throws Exception {
		uri = wsdlURL;

        // Start by reading in the WSDL using Parser
        wsdlParser = new Parser();
        if(DEBUG) System.out.println("Reading WSDL document from '" + wsdlURL + "'");
        wsdlParser.run(wsdlURL);
        
		readOperations();        
    }
	
	static public WSDLService createService(String wsdlLoc) {
		WSDLService s = null;
		try {			
			s = new WSDLService(wsdlLoc);
		} catch(Exception e) {
			System.err.println(e);
			e.printStackTrace();
			return null;
			
		}
		
		return s;
	} 	

	private void readOperations() {
		try {
        String serviceNS = null;
        String serviceName = null;
        String operationName = null;
        String portName = null;
        
        Service service = selectService(serviceNS, serviceName);
        org.apache.axis.client.Service dpf = 
        	new org.apache.axis.client.Service(wsdlParser, service.getQName());

        Port port = selectPort(service.getPorts(), portName);
        if (portName == null) {
            portName = port.getName();
        }
        Binding binding = port.getBinding();

        SymbolTable symbolTable = wsdlParser.getSymbolTable();
        BindingEntry bEntry = symbolTable.getBindingEntry(binding.getQName());
        Parameters parameters = null;
        Iterator i = bEntry.getParameters().keySet().iterator();

        while (i.hasNext()) {
            Operation o = (Operation) i.next();
            operationName = o.getName();

        	Call call = (Call) dpf.createCall(QName.valueOf(portName),
								                       QName.valueOf(operationName));
		    WSDLOperation op = new WSDLOperation(call);
		    op.setService(this);
		    
		    operations.put(operationName, op);

		    Message inputMessage = o.getInput().getMessage();
		    Message outputMessage = o.getOutput().getMessage();
		    
		    op.setInputMessageName(inputMessage.getQName().getLocalPart());
		    op.setOutputMessageName(outputMessage.getQName().getLocalPart());
		    op.setPortName(port.getName());
		    
		    if(DEBUG) {
		    	System.out.println(" Operation : " + operationName);
		    	System.out.println(" Port      : " + portName);
		    	System.out.println(" Input Msg : " + inputMessage.getQName());
		    	System.out.println(" Output Msg: " + outputMessage.getQName());
		    }

		    
		    
		    Object obj = bEntry.getInputBodyType(o);
		    obj = o.getInput().getMessage().getQName().getLocalPart();
		    
		    if(o.getDocumentationElement() != null) {
		    	Node doc = o.getDocumentationElement().getFirstChild(); 
		    	if(doc != null)
		    		op.setDocumentation(doc.getNodeValue());
		    }
		    
            parameters = (Parameters) bEntry.getParameters().get(o);

	        // loop over parameters and set up in/out params
	        for (int j = 0; j < parameters.list.size(); ++j) {
	            Parameter p = (Parameter) parameters.list.get(j);
				String name = p.getQName().getLocalPart();
				QName type = p.getType().getQName();
	
	            if (p.getMode() == Parameter.IN) {           // IN	                
					op.addInput(name, type);

					if(DEBUG) 
						System.out.println(" Input     : " + p.getQName() + " " +  type);
	            } else if (p.getMode() == Parameter.OUT) {    // OUT
					op.addOutput(name, type);

					if(DEBUG) 
						System.out.println(" Output    : " + p.getQName() + " " +  type);
	            } else if (p.getMode() == Parameter.INOUT) {    // INOUT
					op.addInput(name, type);
					op.addOutput(name, type);
					System.err.println("WARNING: A wsdl parameter is defined as INOUT is not tested yet");
					System.err.println("         Parameter = " + name);
					
					if(DEBUG)
						System.out.println(" InOut     : " + name + " " +  type);
	            }
	            
	        }
	
	        // set output type
	        if (parameters.returnParam != null) {
	        	Parameter p = parameters.returnParam;
				String name = p.getQName().getLocalPart();
				QName type = p.getType().getQName();
	
				op.addOutput(name, type);

				if(DEBUG) 
					System.out.println(" Return    : " + p.getQName() + " " +  type);
	        }
	        
			if(DEBUG) {
				System.out.println(" Inputs    : " + op.getInputs().size());
				System.out.println(" Outputs   : " + op.getOutputs().size());
				System.out.println(" Document  : " + op.getDocumentation());
				System.out.println();
			}	        
        }

		} catch(Exception e) {
			System.err.println(e);
			e.printStackTrace();
		}
    }

	private Service selectService(String serviceNS, String serviceName)
            throws Exception {
        QName serviceQName = (((serviceNS != null)
                && (serviceName != null))
                ? new QName(serviceNS, serviceName)
                : null);
        ServiceEntry serviceEntry = (ServiceEntry) getSymTabEntry(serviceQName,
                                                                  ServiceEntry.class);
        return serviceEntry.getService();
    }

    private SymTabEntry getSymTabEntry(QName qname, Class cls) {
        HashMap map = wsdlParser.getSymbolTable().getHashMap();
        Iterator iterator = map.entrySet().iterator();

        while (iterator.hasNext()) {
            Map.Entry entry = (Map.Entry) iterator.next();
            Vector v = (Vector) entry.getValue();

            if ((qname == null) || qname.equals(qname)) {
                for (int i = 0; i < v.size(); ++i) {
                    SymTabEntry symTabEntry = (SymTabEntry) v.elementAt(i);