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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.assertEquals;

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 test.ASM_0001_Client;
import test.TestInvocation;

/**
 * A generic test client based on Tuscany APIs
 */
public class BaseTestCase {

    protected NodeLauncher launcher;
    protected Node node;
    protected TestConfiguration testConfiguration = getTestConfiguration();

    public static void main(String[] args) throws Exception {
        BaseTestCase test = new BaseTestCase();
        test.setUp();
        test.tearDown();
    }

    @Before
    public void setUp() throws Exception {
        startContribution();
    }

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

    @Test
    public void testDummy() throws Exception {
        // System.out.println("Test " + testName + " starting");
        try {
            String output = invokeTest(testConfiguration.getInput());
            assertEquals(testConfiguration.getExpectedOutput(), output);
        } catch (Exception e) {
            assertEquals(testConfiguration.getExpectedOutput(), "exception");
            System.out.println("Expected exception - detail: " + e.getMessage());
        }
        System.out.println("Test " + testConfiguration.getTestName() + " completed successfully");
    }

    public String invokeTest(String input) throws Exception {

        TestInvocation service =
            (TestInvocation)getService(testConfiguration.getServiceInterface(), testConfiguration.getTestServiceName());

        return service.invokeTest(input);
    } // 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_0001.composite";
        config.testServiceName = "TestClient";
        config.testClass = ASM_0001_Client.class;
        config.serviceInterface = TestInvocation.class;
        return config;
    }

} // end class BaseTest