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