    001/*
    002 * Licensed to the Apache Software Foundation (ASF) under one
    003 * or more contributor license agreements.  See the NOTICE file
    004 * distributed with this work for additional information
    005 * regarding copyright ownership.  The ASF licenses this file
    006 * to you under the Apache License, Version 2.0 (the
    007 * "License"); you may not use this file except in compliance
    008 * with the License.  You may obtain a copy of the License at
    009 *
    010 *   https://www.apache.org/licenses/LICENSE-2.0
    011 *
    012 * Unless required by applicable law or agreed to in writing,
    013 * software distributed under the License is distributed on an
    014 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
    015 * KIND, either express or implied.  See the License for the
    016 * specific language governing permissions and limitations
    017 * under the License.
    018 */
    019
    020package org.apache.commons.exec.launcher;
    021
    022import java.io.File;
    023import java.io.IOException;
    024import java.util.Map;
    025
    026import org.apache.commons.exec.CommandLine;
    027
    028/**
    029 * A command launcher for Windows XP/2000/NT that uses 'cmd.exe' when launching commands in directories other than the current working directory.
    030 */
    031public class WinNTCommandLauncher extends CommandLauncherProxy {
    032
    033    /**
    034     * Constructs a new instance.
    035     *
    036     * @param launcher the command launcher to use.
    037     */
    038    public WinNTCommandLauncher(final CommandLauncher launcher) {
    039        super(launcher);
    040    }
    041
    042    /**
    043     * Launches the given command in a new process, in the given working directory.
    044     *
    045     * @param cmd        the command line to execute as an array of strings.
    046     * @param env        the environment to set as an array of strings.
    047     * @param workingDir working directory where the command should run.
    048     * @throws IOException forwarded from the exec method of the command launcher.
    049     */
    050    @Override
    051    public Process exec(final CommandLine cmd, final Map<String, String> env, final File workingDir) throws IOException {
    052        if (workingDir == null) {
    053            return exec(cmd, env);
    054        }
    055
    056        // Use cmd.exe to change to the specified directory before running the command.
    057        // @formatter:off
    058        return exec(new CommandLine("cmd")
    059                .addArgument("/c")
    060                .addArguments(cmd.toStrings()), env);
    061        // @formatter:on
    062    }
    063}