1 /*
2 * Licensed to the Apache Software Foundation (ASF) under one
3 * or more contributor license agreements. See the NOTICE file
4 * distributed with this work for additional information
5 * regarding copyright ownership. The ASF licenses this file
6 * to you under the Apache License, Version 2.0 (the
7 * "License"); you may not use this file except in compliance
8 * with the License. You may obtain a copy of the License at
9 *
10 * https://www.apache.org/licenses/LICENSE-2.0
11 *
12 * Unless required by applicable law or agreed to in writing,
13 * software distributed under the License is distributed on an
14 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15 * KIND, either express or implied. See the License for the
16 * specific language governing permissions and limitations
17 * under the License.
18 */
19
20 package org.apache.commons.exec.launcher;
21
22 import java.io.File;
23 import java.io.IOException;
24 import java.util.Map;
25
26 import org.apache.commons.exec.CommandLine;
27
28 /**
29 * A command launcher for Windows XP/2000/NT that uses 'cmd.exe' when launching commands in directories other than the current working directory.
30 */
31 public class WinNTCommandLauncher extends CommandLauncherProxy {
32
33 /**
34 * Constructs a new instance.
35 *
36 * @param launcher the command launcher to use.
37 */
38 public WinNTCommandLauncher(final CommandLauncher launcher) {
39 super(launcher);
40 }
41
42 /**
43 * Launches the given command in a new process, in the given working directory.
44 *
45 * @param cmd the command line to execute as an array of strings.
46 * @param env the environment to set as an array of strings.
47 * @param workingDir working directory where the command should run.
48 * @throws IOException forwarded from the exec method of the command launcher.
49 */
50 @Override
51 public Process exec(final CommandLine cmd, final Map<String, String> env, final File workingDir) throws IOException {
52 if (workingDir == null) {
53 return exec(cmd, env);
54 }
55
56 // Use cmd.exe to change to the specified directory before running the command.
57 // @formatter:off
58 return exec(new CommandLine("cmd")
59 .addArgument("/c")
60 .addArguments(cmd.toStrings()), env);
61 // @formatter:on
62 }
63 }