/*
 * Copyright 2004,2005 The Apache Software Foundation.
 * Copyright 2006 International Business Machines Corp.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.apache.axis2.jaxws;

import java.io.ByteArrayInputStream;
import java.util.concurrent.Future;

import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.stream.XMLInputFactory;
import javax.xml.stream.XMLStreamReader;
import javax.xml.transform.Source;
import javax.xml.transform.dom.DOMSource;
import javax.xml.ws.Dispatch;
import javax.xml.ws.Service;

import junit.framework.TestCase;

import org.apache.axis2.jaxws.message.util.Reader2Writer;
import org.w3c.dom.Document;
import org.w3c.dom.Node;

/**
 * This class tests the JAX-WS Dispatch with various forms of the 
 * javax.xml.transform.dom.DOMSource 
 */
public class DOMSourceDispatch extends TestCase{

    private static final XMLInputFactory inputFactory = XMLInputFactory.newInstance();
    
    public void testSyncPayloadMode() throws Exception {
		System.out.println("---------------------------------------");
        System.out.println("test: " + getName());
        
        // Initialize the JAX-WS client artifacts
        Service svc = Service.create(DispatchTestConstants.QNAME_SERVICE);
        svc.addPort(DispatchTestConstants.QNAME_PORT, null, DispatchTestConstants.URL);
        Dispatch<Source> dispatch = svc.createDispatch(DispatchTestConstants.QNAME_PORT, 
                Source.class, Service.Mode.PAYLOAD);
        
        // Create the DOMSource
        DOMSource request = createDOMSourceFromString(DispatchTestConstants.sampleBodyContent);
        
		System.out.println(">> Invoking sync Dispatch");
		Source response = dispatch.invoke(request);
		assertNotNull("dispatch invoke returned null",response);
		
        // Turn the Source into a String so we can check it
        String responseText = createStringFromSource(response);        
        System.out.println(responseText);
        
        // Check to make sure the content is correct
        assertTrue(!responseText.contains("soap"));
        assertTrue(!responseText.contains("Envelope"));
        assertTrue(!responseText.contains("Body"));
        assertTrue(responseText.contains("echoStringResponse"));
	}

	public void testSyncMessageMode() throws Exception {
        System.out.println("---------------------------------------");
        System.out.println("test: " + getName());
        
        // Initialize the JAX-WS client artifacts
        Service svc = Service.create(DispatchTestConstants.QNAME_SERVICE);
        svc.addPort(DispatchTestConstants.QNAME_PORT, null, DispatchTestConstants.URL);
        Dispatch<Source> dispatch = svc.createDispatch(DispatchTestConstants.QNAME_PORT, 
                Source.class, Service.Mode.MESSAGE);
        
        // Create the DOMSource
        DOMSource request = createDOMSourceFromString(DispatchTestConstants.sampleSoapMessage);
        
        System.out.println(">> Invoking sync Dispatch");
        Source response = dispatch.invoke(request);
        assertNotNull("dispatch invoke returned null",response);
        
        // Turn the Source into a String so we can check it
        String responseText = createStringFromSource(response);        
        System.out.println(responseText);
        
        // Check to make sure the content is correct
        assertTrue(responseText.contains("soap"));
        assertTrue(responseText.contains("Envelope"));
        assertTrue(responseText.contains("Body"));
        assertTrue(responseText.contains("echoStringResponse"));
	}

    public void testAsyncCallbackPayloadMode() throws Exception {
        System.out.println("---------------------------------------");
        System.out.println("test: " + getName());
        
        // Initialize the JAX-WS client artifacts
        Service svc = Service.create(DispatchTestConstants.QNAME_SERVICE);
        svc.addPort(DispatchTestConstants.QNAME_PORT, null, DispatchTestConstants.URL);
        Dispatch<Source> dispatch = svc.createDispatch(DispatchTestConstants.QNAME_PORT, 
                Source.class, Service.Mode.PAYLOAD);
        
        // Create the DOMSource
        DOMSource request = createDOMSourceFromString(DispatchTestConstants.sampleBodyContent);

        // Setup the callback for async responses
        CallbackHandler<Source> callbackHandler = new CallbackHandler<Source>();
        
        System.out.println(">> Invoking async (callback) Dispatch");
        Future<?> monitor = dispatch.invokeAsync(request, callbackHandler);
            
        while (!monitor.isDone()) {
            System.out.println(">> Async invocation still not complete");
            Thread.sleep(1000);
        }
    }
    
    public void testAsyncCallbackMessageMode() throws Exception {
        System.out.println("---------------------------------------");
        System.out.println("test: " + getName());
        
        // Initialize the JAX-WS client artifacts
        Service svc = Service.create(DispatchTestConstants.QNAME_SERVICE);
        svc.addPort(DispatchTestConstants.QNAME_PORT, null, DispatchTestConstants.URL);
        Dispatch<Source> dispatch = svc.createDispatch(DispatchTestConstants.QNAME_PORT, 
                Source.class, Service.Mode.MESSAGE);
        
        // Create the DOMSource
        DOMSource request = createDOMSourceFromString(DispatchTestConstants.sampleSoapMessage);

        // Setup the callback for async responses
        CallbackHandler<Source> callbackHandler = new CallbackHandler<Source>();
        
        System.out.println(">> Invoking async (callback) Dispatch");
        Future<?> monitor = dispatch.invokeAsync(request, callbackHandler);
	        
        while (!monitor.isDone()) {
            System.out.println(">> Async invocation still not complete");
            Thread.sleep(1000);
        }
	}
    
    public void testOneWayPayloadMode() throws Exception {
        System.out.println("---------------------------------------");
        System.out.println("test: " + getName());
        
        // Initialize the JAX-WS client artifacts
        Service svc = Service.create(DispatchTestConstants.QNAME_SERVICE);
        svc.addPort(DispatchTestConstants.QNAME_PORT, null, DispatchTestConstants.URL);
        Dispatch<Source> dispatch = svc.createDispatch(DispatchTestConstants.QNAME_PORT, 
                Source.class, Service.Mode.PAYLOAD);

        // Create the DOMSource
        DOMSource request = createDOMSourceFromString(DispatchTestConstants.sampleBodyContent);

        System.out.println(">> Invoking One Way Dispatch");
        dispatch.invokeOneWay(request);
    }
    
    public void testOneWayMessageMode() throws Exception {
        System.out.println("---------------------------------------");
        System.out.println("test: " + getName());
        
        // Initialize the JAX-WS client artifacts
        Service svc = Service.create(DispatchTestConstants.QNAME_SERVICE);
        svc.addPort(DispatchTestConstants.QNAME_PORT, null, DispatchTestConstants.URL);
        Dispatch<Source> dispatch = svc.createDispatch(DispatchTestConstants.QNAME_PORT, 
                Source.class, Service.Mode.MESSAGE);

        // Create the DOMSource
        DOMSource request = createDOMSourceFromString(DispatchTestConstants.sampleSoapMessage);

        System.out.println(">> Invoking One Way Dispatch");
        dispatch.invokeOneWay(request);
	}
    
	/**
     * Create a DOMSource with the provided String as the content
     * @param input
     * @return
	 */
    private DOMSource createDOMSourceFromString(String input) throws Exception {
        byte[] bytes = input.getBytes();
        ByteArrayInputStream stream = new ByteArrayInputStream(bytes);
        
        DocumentBuilderFactory domFactory = DocumentBuilderFactory.newInstance();
        domFactory.setNamespaceAware(true);
        DocumentBuilder domBuilder = domFactory.newDocumentBuilder();
        Document domTree = domBuilder.parse(stream);
        Node node = domTree.getDocumentElement();
        
        DOMSource domSource = new DOMSource(node);
        return domSource;
    }
    
    /**
     * Create a String from the provided Source
     * @param input
     * @return
     */
    private String createStringFromSource(Source input) throws Exception {
        XMLStreamReader reader = inputFactory.createXMLStreamReader(input);
        Reader2Writer r2w = new Reader2Writer(reader);
        String text = r2w.getAsString();
        return text;
    }
}