001/*
002 * Licensed to the Apache Software Foundation (ASF) under one or more
003 *  contributor license agreements.  See the NOTICE file distributed with
004 *  this work for additional information regarding copyright ownership.
005 *  The ASF licenses this file to You under the Apache License, Version 2.0
006 *  (the "License"); you may not use this file except in compliance with
007 *  the License.  You may obtain a copy of the License at
008 *
009 *      http://www.apache.org/licenses/LICENSE-2.0
010 *
011 *  Unless required by applicable law or agreed to in writing, software
012 *  distributed under the License is distributed on an "AS IS" BASIS,
013 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014 *  See the License for the specific language governing permissions and
015 *  limitations under the License.
016 */
017
018package org.apache.commons.exec.launcher;
019
020import java.io.File;
021import java.io.IOException;
022import java.util.Map;
023
024import org.apache.commons.exec.CommandLine;
025
026/**
027 * A command launcher for OS/2 that uses 'cmd.exe' when launching commands in directories other than the current working directory.
028 * <p>
029 * Unlike Windows NT and friends, OS/2's cd doesn't support the /d switch to change drives and directories in one go.
030 * </p>
031 * <p>
032 * Note that this class is currently unused because the Java13CommandLauncher is used for 0S/2.
033 * </p>
034 */
035public class OS2CommandLauncher extends CommandLauncherProxy {
036
037    /**
038     * Constructs a new instance.
039     *
040     * @param launcher the command launcher to use.
041     */
042    public OS2CommandLauncher(final CommandLauncher launcher) {
043        super(launcher);
044    }
045
046    /**
047     * Launches the given command in a new process, in the given working directory.
048     *
049     * @param cmd        the command line to execute as an array of strings.
050     * @param env        the environment to set as an array of strings.
051     * @param workingDir working directory where the command should run.
052     * @throws IOException forwarded from the exec method of the command launcher.
053     */
054    @Override
055    public Process exec(final CommandLine cmd, final Map<String, String> env, final File workingDir) throws IOException {
056        if (workingDir == null) {
057            return exec(cmd, env);
058        }
059        // @formatter:off
060        return exec(new CommandLine("cmd")
061                .addArgument("/c")
062                .addArguments(cmd.toStrings()), env);
063        // @formatter:on
064    }
065}