diff options
Diffstat (limited to 'framework/src/ant/apache-ant-1.9.6/src/main/org/apache/tools/ant/taskdefs/launcher/CommandLauncher.java')
| -rw-r--r-- | framework/src/ant/apache-ant-1.9.6/src/main/org/apache/tools/ant/taskdefs/launcher/CommandLauncher.java | 213 |
1 files changed, 213 insertions, 0 deletions
diff --git a/framework/src/ant/apache-ant-1.9.6/src/main/org/apache/tools/ant/taskdefs/launcher/CommandLauncher.java b/framework/src/ant/apache-ant-1.9.6/src/main/org/apache/tools/ant/taskdefs/launcher/CommandLauncher.java new file mode 100644 index 00000000..8c126efe --- /dev/null +++ b/framework/src/ant/apache-ant-1.9.6/src/main/org/apache/tools/ant/taskdefs/launcher/CommandLauncher.java @@ -0,0 +1,213 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed with + * this work for additional information regarding copyright ownership. + * The ASF licenses this file to You under the Apache License, Version 2.0 + * (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + */ +package org.apache.tools.ant.taskdefs.launcher; + +import static org.apache.tools.ant.MagicNames.ANT_SHELL_LAUNCHER_REF_ID; +import static org.apache.tools.ant.MagicNames.ANT_VM_LAUNCHER_REF_ID; + +import java.io.File; +import java.io.IOException; + +import org.apache.tools.ant.Project; +import org.apache.tools.ant.taskdefs.condition.Os; +import org.apache.tools.ant.types.Commandline; +import org.apache.tools.ant.util.FileUtils; + +/** + * 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 directory. + */ +public class CommandLauncher { + + protected static final FileUtils FILE_UTILS = FileUtils.getFileUtils(); + + private static CommandLauncher vmLauncher = null; + private static CommandLauncher shellLauncher = null; + + static { + if(!Os.isFamily("os/2")) { + vmLauncher = new Java13CommandLauncher(); + } + + if (Os.isFamily("mac") && !Os.isFamily("unix")) { + // Mac + shellLauncher = new MacCommandLauncher(new CommandLauncher()); + } else if (Os.isFamily("os/2")) { + // OS/2 + shellLauncher = new OS2CommandLauncher(new CommandLauncher()); + } else if (Os.isFamily("windows")) { + CommandLauncher baseLauncher = new CommandLauncher(); + + if (!Os.isFamily("win9x")) { + // Windows XP/2000/NT + shellLauncher = new WinNTCommandLauncher(baseLauncher); + } else { + // Windows 98/95 - need to use an auxiliary script + shellLauncher = + new ScriptCommandLauncher("bin/antRun.bat", baseLauncher); + } + } else if (Os.isFamily("netware")) { + + CommandLauncher baseLauncher = new CommandLauncher(); + + shellLauncher = + new PerlScriptCommandLauncher("bin/antRun.pl", baseLauncher); + } else if (Os.isFamily("openvms")) { + // OpenVMS + shellLauncher = new VmsCommandLauncher(); + } else { + // Generic + shellLauncher = new ScriptCommandLauncher("bin/antRun", + new CommandLauncher()); + } + } + + /** + * Launches the given command in a new process. + * + * @param project + * The project that the command is part of. + * @param cmd + * The command to execute. + * @param env + * The environment for the new process. If null, the + * environment of the current process is used. + * @return the created Process. + * @throws IOException + * if attempting to run a command in a specific directory. + */ + public Process exec(Project project, String[] cmd, String[] env) + throws IOException { + if(project != null) { + project.log("Execute:CommandLauncher: " + + Commandline.describeCommand(cmd), Project.MSG_DEBUG); + } + return Runtime.getRuntime().exec(cmd, env); + } + + /** + * Launches the given command in a new process, in the given + * working directory. + * + * @param project + * The project that the command is part of. + * @param cmd + * The command to execute. + * @param env + * The environment for the new process. If null, the + * environment of the current process is used. + * @param workingDir + * The directory to start the command in. If null, the + * current directory is used. + * @return the created Process. + * @throws IOException + * if trying to change directory. + */ + public Process exec(Project project, String[] cmd, String[] env, + File workingDir) throws IOException { + if (workingDir == null) { + return exec(project, cmd, env); + } + throw new IOException("Cannot execute a process in different " + + "directory under this JVM"); + } + + /** + * Obtains the shell launcher configured for the given project or + * the default shell launcher. + */ + public static CommandLauncher getShellLauncher(Project project) { + CommandLauncher launcher = extractLauncher(ANT_SHELL_LAUNCHER_REF_ID, + project); + if (launcher == null) { + launcher = shellLauncher; + } + + return launcher; + } + + /** + * Obtains the VM launcher configured for the given project or + * the default VM launcher. + */ + public static CommandLauncher getVMLauncher(Project project) { + CommandLauncher launcher = extractLauncher(ANT_VM_LAUNCHER_REF_ID, + project); + if (launcher == null) { + launcher = vmLauncher; + } + return launcher; + } + + private static CommandLauncher extractLauncher(String referenceName, + Project project) { + CommandLauncher launcher = null; + if (project != null) { + launcher = (CommandLauncher) project.getReference(referenceName); + } + + if (launcher == null) { + launcher = getSystemLauncher(referenceName); + } + return launcher; + } + + private static CommandLauncher getSystemLauncher(String launcherRefId) { + CommandLauncher launcher = null; + String launcherClass = System.getProperty(launcherRefId); + if (launcherClass != null) { + try { + launcher = (CommandLauncher) Class.forName(launcherClass) + .newInstance(); + } catch(InstantiationException e) { + System.err.println("Could not instantiate launcher class " + + launcherClass + ": " + e.getMessage()); + } catch(IllegalAccessException e) { + System.err.println("Could not instantiate launcher class " + + launcherClass + ": " + e.getMessage()); + } catch(ClassNotFoundException e) { + System.err.println("Could not instantiate launcher class " + + launcherClass + ": " + e.getMessage()); + } + } + + return launcher; + } + + /** + * Sets the VM launcher to use for the given project. + */ + public static void setVMLauncher(Project project, + CommandLauncher launcher) { + if (project != null) { + project.addReference(ANT_VM_LAUNCHER_REF_ID, launcher); + } + } + + /** + * Sets the shell launcher to use for the given project. + */ + public static void setShellLauncher(Project project, + CommandLauncher launcher) { + if (project != null) { + project.addReference(ANT_SHELL_LAUNCHER_REF_ID, launcher); + } + } + +} |