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 import org.apache.commons.exec.environment.EnvironmentUtils;
28
29 /**
30 * A command launcher for a particular JVM/OS platform. This class is a general purpose command launcher which can only launch commands in the current working
31 * directory.
32 */
33 public abstract class CommandLauncherImpl implements CommandLauncher {
34
35 /**
36 * Constructs a new instance.
37 */
38 public CommandLauncherImpl() {
39 // empty
40 }
41
42 @Override
43 public Process exec(final CommandLine cmd, final Map<String, String> env) throws IOException {
44 return Runtime.getRuntime().exec(cmd.toStrings(), EnvironmentUtils.toStrings(env));
45 }
46
47 @Override
48 public abstract Process exec(CommandLine cmd, Map<String, String> env, File workingDir) throws IOException;
49
50 /** @see org.apache.commons.exec.launcher.CommandLauncher#isFailure(int) */
51 @Override
52 public boolean isFailure(final int exitValue) {
53 // non zero exit value signals failure
54 return exitValue != 0;
55 }
56 }