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/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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 client;

import static org.junit.Assert.*;

import java.net.MalformedURLException;
import java.net.URL;

import org.apache.tuscany.sca.node.Node;
import org.apache.tuscany.sca.node.equinox.launcher.Contribution;
import org.apache.tuscany.sca.node.equinox.launcher.ContributionLocationHelper;
import org.apache.tuscany.sca.node.equinox.launcher.NodeLauncher;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;

import javax.xml.ws.Service;
import javax.xml.namespace.QName;

import test.ASM_0001_Client;
import testClient.TestInvocation;
import testClient.TestException_Exception;
import testClient.TestException;

/**
 * A generic test client based on JAX-WS APIs
 */
public class BaseJAXWSTestCase {

    protected NodeLauncher launcher;
    protected Node node;
    protected TestConfiguration testConfiguration = getTestConfiguration();
    static boolean proceed = true;
    
    public static void main(String[] args) throws Exception {
    	BaseJAXWSTestCase test = new BaseJAXWSTestCase(); 
    	test.setUp();
    	test.tearDown();
    }
    
    @Before
    public void setUp() throws Exception {	
    	try {
    		startContribution();
    	} catch (Exception e) {
    		// If the SCA runtime refuses to start an invalid contribution, then this is also
    		// regarded as a successful outcome
   			System.out.println( "Exception received - detail: " + e.getMessage() );
    		assertEquals( testConfiguration.getExpectedOutput(), "exception" );
    		System.out.println("Test " + testConfiguration.getTestName() + " completed successfully");
    		// Mark this test as not to proceed further
    		proceed = false;
    	} // end try
    }

    @After
    public void tearDown() throws Exception {
    	stopContribution();
    }

    @Test
    public void testDummy() throws Exception {
    	// If an exception were thrown during initialization, let's go no further
    	if( proceed == false ) return;
    	
    	// System.out.println("Test " + testName + " starting");
    	String output = null;
    	try {
	    	output = invokeTest( testConfiguration.getInput() );

    	} catch ( TestException_Exception e ) {
    		TestException exceptionContent = e.getFaultInfo();
    		System.out.println("Service fault received - detail: " + exceptionContent.getMessage() );
    		assertEquals( testConfiguration.getExpectedOutput(), "exception" );
    		System.out.println("Test " + testConfiguration.getTestName() + " completed successfully");
    		return;
    	} catch (Throwable e) {
    		e.printStackTrace();
   			System.out.println( "Exception received - detail: " + e.getMessage() );
    		assertEquals( testConfiguration.getExpectedOutput(), "exception" );
    		System.out.println("Test " + testConfiguration.getTestName() + " completed successfully");
    		return;
    	}
    	assertEquals( testConfiguration.getExpectedOutput(), output );
    	System.out.println("Test " + testConfiguration.getTestName() + " completed successfully");
    }
    
    public String invokeTest( String input ) throws Exception {
    	//Web service invocation via JAXWS
    	QName serviceName = new QName("http://test/", "TestInvocationService");
    	URL wsdlLocation = this.getClass().getClassLoader().getResource("TestClient.wsdl");
    	javax.xml.ws.Service webService = Service.create( wsdlLocation, serviceName );
    	TestInvocation wsProxy = (TestInvocation) webService.getPort(testConfiguration.getServiceInterface());

    	String output = wsProxy.invokeTest(input);

    	return output;
    } // end method invokeTest
    
    protected <T> T getService( Class<T> interfaze, String serviceName ) {
    	T service = node.getService( interfaze, serviceName );
    	return service;
    } // end getService
    
    protected void startContribution() throws Exception {
    	// Tuscany specific code which starts the contribution holding the test
        launcher = NodeLauncher.newInstance();
        node = launcher.createNode(testConfiguration.getComposite(), 
        		                   new Contribution(testConfiguration.getTestName(), getContributionURI()));
        System.out.println("SCA Node API ClassLoader: " + node.getClass().getClassLoader());
        node.start();
    } // end method startContribution
    
    protected void stopContribution() throws Exception {
        if (node != null) {
            node.stop();
            node.destroy();
        }
        if (launcher != null) {
            launcher.destroy();
        }
    } // end method stopContribution
    
    protected String getContributionURI() {
    	String location = ContributionLocationHelper.getContributionLocation(testConfiguration.getTestClass());
    	return location;
    }
    
    protected TestConfiguration getTestConfiguration() {
    	TestConfiguration config = new TestConfiguration();
    	config.testName 		= "ASM_0001";
    	config.input 			= "request";
    	config.output 			= config.testName + " " + config.input + " invoked ok";
    	config.composite 		= "Test_ASM_0101.composite";
    	config.testServiceName 	= "TestClient";
    	config.testClass 		= ASM_0001_Client.class;
    	config.serviceInterface = TestInvocation.class;
    	return config;
    }
    
} // end class BaseTest