001 /*
002 * Licensed to the Apache Software Foundation (ASF) under one or more
003 * contributor license agreements. See the NOTICE file distributed with
004 * this work for additional information regarding copyright ownership.
005 * The ASF licenses this file to You under the Apache License, Version 2.0
006 * (the "License"); you may not use this file except in compliance with
007 * the License. You may obtain a copy of the License at
008 *
009 * http://www.apache.org/licenses/LICENSE-2.0
010 *
011 * Unless required by applicable law or agreed to in writing, software
012 * distributed under the License is distributed on an "AS IS" BASIS,
013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014 * See the License for the specific language governing permissions and
015 * limitations under the License.
016 *
017 */
018
019 package org.apache.commons.exec.launcher;
020
021 import org.apache.commons.exec.OS;
022
023 /**
024 * Builds a command launcher for the OS and JVM we are running under.
025 */
026 public final class CommandLauncherFactory {
027
028 private CommandLauncherFactory() {
029 }
030
031 /**
032 * Factory method to create an appropriate launcher.
033 *
034 * @return the command launcher
035 */
036 public static CommandLauncher createVMLauncher() {
037 // Try using a JDK 1.3 launcher
038 CommandLauncher launcher;
039
040 if (OS.isFamilyOpenVms()) {
041 launcher = new VmsCommandLauncher();
042 } else {
043 launcher = new Java13CommandLauncher();
044 }
045
046 return launcher;
047 }
048 }