View Javadoc
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 OS/2 that uses 'cmd.exe' when launching commands in directories other than the current working directory.
28   * <p>
29   * Unlike Windows NT and friends, OS/2's cd doesn't support the /d switch to change drives and directories in one go.
30   * </p>
31   * <p>
32   * Note that this class is currently unused because the Java13CommandLauncher is used for 0S/2.
33   * </p>
34   */
35  public class OS2CommandLauncher extends CommandLauncherProxy {
36  
37      /**
38       * Constructs a new instance.
39       *
40       * @param launcher the command launcher to use.
41       */
42      public OS2CommandLauncher(final CommandLauncher launcher) {
43          super(launcher);
44      }
45  
46      /**
47       * Launches the given command in a new process, in the given working directory.
48       *
49       * @param cmd        the command line to execute as an array of strings.
50       * @param env        the environment to set as an array of strings.
51       * @param workingDir working directory where the command should run.
52       * @throws IOException forwarded from the exec method of the command launcher.
53       */
54      @Override
55      public Process exec(final CommandLine cmd, final Map<String, String> env, final File workingDir) throws IOException {
56          if (workingDir == null) {
57              return exec(cmd, env);
58          }
59          // @formatter:off
60          return exec(new CommandLine("cmd")
61                  .addArgument("/c")
62                  .addArguments(cmd.toStrings()), env);
63          // @formatter:on
64      }
65  }