xref: /external/apache-harmony/jdwp/src/test/java/org/apache/harmony/jpda/tests/jdwp/share/JDWPManualDebuggeeWrapper.java

/*
 * 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.
 */

/**
 * @author Ivan G. Popov
 */

/**
 * Created on 29.01.2005
 */
package org.apache.harmony.jpda.tests.jdwp.share;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

import org.apache.harmony.jpda.tests.framework.LogWriter;
import org.apache.harmony.jpda.tests.framework.TestErrorException;
import org.apache.harmony.jpda.tests.share.JPDATestOptions;

/**
 * This class provides DebuggeeWrapper implementation based on JUnit framework.
 * Debuggee is always launched on local machine and attaches to debugger.
 */
public class JDWPManualDebuggeeWrapper extends JDWPUnitDebuggeeWrapper {

    private BufferedReader reader = null;

    /**
     * A constructor that creates new instance with given data.
     *
     * @param settings
     *            test run options
     * @param logWriter
     *            where to print log messages
     */
    public JDWPManualDebuggeeWrapper(JPDATestOptions settings,
            LogWriter logWriter) {
        super(settings, logWriter);
        reader = new BufferedReader(new InputStreamReader(System.in));
    }

    /**
     * Get response from user and check if it is as expected.
     */
    private void checkUserResponse(String expected) throws IOException {
        String response = reader.readLine();
        if (!expected.equals(response)) {
            throw new TestErrorException("Unexpected user response: "
                    + response + " (expected: " + expected + ")");
        }
    }

    /**
     * Asks user to launch process with given command line and waits for
     * confirmation.
     *
     * @param cmdLine
     *            command line
     * @return null instead of associated Process object
     * @throws IOException
     *             if user does not confirm process launching
     */
    protected Process launchProcess(String cmdLine) throws IOException {
        getLogWriter().println(
                "\n>>> Start debuggee VM with this command line:\n" + cmdLine);
        getLogWriter().println(
                "\n>>> Confirm that debuggee VM has started [yes/no]:");
        checkUserResponse("yes");
        return null;
    }

    /**
     * Waits for user to confirm that launched process has exited.
     *
     * @param process
     *            should be null instead of associated Process object
     * @throws IOException
     *             if user does not confirm process exit
     */
    protected void WaitForProcessExit(Process process) throws IOException {
        getLogWriter().println(
                "\n>>> Confirm that debuggee VM has exited [yes/no]:");
        checkUserResponse("yes");
    }
}