/*
 * This file is part of the LibreOffice project.
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 *
 * This file incorporates work covered by the following license notice:
 *
 *   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 .
 */

package ifc.io;

import lib.MultiMethodTest;
import lib.Status;
import lib.StatusException;

import com.sun.star.io.XActiveDataControl;
import com.sun.star.io.XStreamListener;
import com.sun.star.lang.EventObject;

/**
 * Testing <code>com.sun.star.io.XActiveDataControl</code>
 * interface methods :
 * <ul>
 *  <li><code> addListener()</code></li>
 *  <li><code> removeListener()</code></li>
 *  <li><code> start()</code></li>
 *  <li><code> terminate()</code></li>
 * </ul> <p>
 *
 * Tests <code>XActiveDataControl</code> interface. First, it registers a listener
 * and performs <code>start()</code> and <code>terminate()</code> calls. The
 * events received in the listener are analyzed to verify the result.<p>
 *
 * @see com.sun.star.io.XActiveDataControl
 */
public class _XActiveDataControl extends MultiMethodTest {

    /**
     * Contains the object under test.
     */
    public XActiveDataControl oObj = null;

    /**
     * Indicates that the <code>XStreamListener.started()</code> method has
     * been called.
     */
    private boolean startCalled = false;

    /**
     * Indicates that the <code>XStreamListener.terminated()</code> method has
     * been called.
     */
    private boolean terminateCalled = false;

    /**
     * Indicates that the <code>XEventListener.closed()</code> method has
     * been called.
     */
    private boolean closeCalled = false;

    /**
     * Indicates that the <code>XStreamListener.error()</code> method has
     * been called.
     */
    private boolean errorCalled = false;

    /**
     * Contains the error, if <code>XStreamListener.error(Object error)</code>
     * method was called.
     */
    private Object error;

    /**
     * Indicates that the <code>XEventListener.disposing()</code> method has
     * been called.
     */
    private boolean smthngElseCalled = false;

    /**
     * The listener is used to verify results of the methods.
     */
    private final TestStreamListener listener = new TestStreamListener();

    /**
     * XStreamListener implementation. Sets variables
     * (<cod>startedCalled</code>, <code>terminatedCalled</code>, etc.) to
     * <tt>true</tt> if the appropriate method was called (for example, if
     * <code>started()</code> was called, the <code>startedCalled</code>
     * field is set).
     */
    private class TestStreamListener implements XStreamListener {
        public void started() {
            startCalled = true ;
        }
        public void terminated() {
            terminateCalled = true ;
        }
        public void error(Object e) {
            error = e;
            errorCalled = true ;
        }
        public void closed() {
            closeCalled = true ;
        }
        public void disposing(EventObject e) {
            smthngElseCalled = true ;
        }

    }

    /**
     * Tests <code>addListener()</code>. The verification is performed later, in
     * <code>_terminate()</code> method.
     */
    public void _addListener() {
        oObj.addListener(listener);
    }

    /**
     * Starts the data activity (e.g. data pump). Verification is performed
     * later, in <code>_terminate()</code> method.
     */
    public void _start() {
        executeMethod("addListener()");

        oObj.start();

        // waiting a little bit for data transferred
        util.utils.pause(200);
        try {
            Thread.sleep(200);
        } catch (InterruptedException e) {
            throw new StatusException(e, Status.failed(e.getMessage()));
        }
    }

    /**
     * Tests <code>removeListener()</code>. Before, it ensures that other
     * tests are performed and that <code>addListener()</code> is okay. Then,
     * calls <code>XActiveDataControl.start()</code> and checks that no method
     * of the listener was called.
     */
    public void _removeListener() {
        // performing other tests before, so, that don't break them
        try {
            executeMethod("terminate()");
        } catch (StatusException e) {
            // the result doesn't matter
        }

        // check that addListener() is okay
        requiredMethod("addListener()");

        // clearing previous records
        startCalled = false;
        terminateCalled = false;
        errorCalled = false;
        error = null;
        smthngElseCalled = false;

        // removing the listener
        oObj.removeListener(listener);

        // starting the activity
        oObj.start();

        // wait a little bit to allow for listeners to be called
        try {
            Thread.sleep(200);
        } catch (InterruptedException e) {
            throw new StatusException(e, Status.failed(e.getMessage()));
        }

        // check that no removed listener's method was called
        tRes.tested("removeListener()",!startCalled &&
            !terminateCalled && !errorCalled && !smthngElseCalled) ;
    }

    /**
     * Tests <code>terminate()</code>. First, ensures that <code>start()</code>
     * has been called. Then, verifies <code>start()</code>,
     * <code>addListener()</code> and <code>terminate()</code> results, by
     * checking that the appropriate listener's methods have been called.
     */
    public void _terminate() {
        // ensuring that the activity has been started
        executeMethod("start()");

        // terminating the activity
        oObj.terminate();

        // waiting a little bit for listeners to be called
        try {
            Thread.sleep(200);
        } catch (InterruptedException e) {
            throw new StatusException(e, Status.failed(e.getMessage()));
        }

        // check, if any error occurred
        if (errorCalled) {
            log.println("Unexpected error " + error);
            ((Exception)error).printStackTrace(log);
        }

        // verification of start() method - startedCalled method should be
        // called
        if (!tRes.tested("start()", startCalled)) {
            log.println("XStreamListener.started() was not called()");
        }

        // check that any listener method is called
        tRes.tested("addListener()", startCalled ||
                terminateCalled || errorCalled || smthngElseCalled);

        // checking that terminated() has been called or streams were closed
        // before terminate() call, in this case termination has no sense.
        tRes.tested("terminate()", terminateCalled || closeCalled);
    }

    /**
     * Disposes the test environment, since it is used.
     */
    @Override
    public void after() {
        this.disposeEnvironment();
    }
}