    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     */
    018
    019    package org.apache.commons.exec.launcher;
    020
    021    import java.io.File;
    022    import java.io.IOException;
    023    import java.util.Map;
    024
    025    import org.apache.commons.exec.CommandLine;
    026
    027    /**
    028     * A command launcher for Windows XP/2000/NT that uses 'cmd.exe' when launching
    029     * commands in directories other than the current working directory.
    030     */
    031    public class WinNTCommandLauncher extends CommandLauncherProxy {
    032        public WinNTCommandLauncher(final CommandLauncher launcher) {
    033            super(launcher);
    034        }
    035
    036        /**
    037         * Launches the given command in a new process, in the given working
    038         * directory.
    039         *
    040         * @param cmd
    041         *            the command line to execute as an array of strings
    042         * @param env
    043         *            the environment to set as an array of strings
    044         * @param workingDir
    045         *            working directory where the command should run
    046         * @throws IOException
    047         *             forwarded from the exec method of the command launcher
    048         */
    049        public Process exec(final CommandLine cmd, final Map env,
    050                final File workingDir) throws IOException {
    051            if (workingDir == null) {
    052                return exec(cmd, env);
    053            }
    054
    055            // Use cmd.exe to change to the specified directory before running
    056            // the command
    057            CommandLine newCmd = new CommandLine("cmd");
    058            newCmd.addArgument("/c");
    059            newCmd.addArguments(cmd.toStrings());
    060
    061            return exec(newCmd, env);
    062        }
    063    }