| /* |
| * Copyright (c) 2002, 2018, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| package nsk.share; |
| |
| import nsk.share.*; |
| |
| import java.io.*; |
| |
| /** |
| * Wrapper for local process. |
| * <p> |
| * This class provides abilities to launch such process, |
| * redirect standard output streams, wait for process terminates |
| * or kill the process, and so on. |
| * <p> |
| * This object is finalized with <code>nsk.share.Finalizer</code>. |
| * |
| * @see nsk.share.FinalizableObject |
| * @see nsk.share.Finalizer |
| */ |
| |
| public class LocalProcess extends FinalizableObject { |
| |
| public final static int PROCESS_IS_ALIVE = 222; |
| |
| private Process process; |
| |
| protected Process getProcess() { |
| return process; |
| } |
| |
| public void launch (String[] args) throws IOException { |
| System.out.println("Launching process by array of args: "); |
| for (int mm=0; mm < args.length; mm++) { |
| System.out.println(" args[" + Integer.toString(mm) + "]: >" + |
| args[mm] + "<"); |
| |
| } |
| |
| process = Runtime.getRuntime().exec(args); |
| |
| Finalizer finalizer = new Finalizer(this); |
| finalizer.activate(); |
| } |
| |
| public void launch (String cmdLine) throws IOException { |
| System.out.println("Launching process by command line: " + cmdLine); |
| |
| process = Runtime.getRuntime().exec(cmdLine); |
| |
| Finalizer finalizer = new Finalizer(this); |
| finalizer.activate(); |
| } |
| |
| /** Return exit status. */ |
| public int getStatus () { |
| return process.exitValue(); |
| } |
| |
| /** Check whether the process has been terminated. */ |
| public boolean terminated() { |
| try { |
| int value = process.exitValue(); |
| return true; |
| } catch (IllegalThreadStateException e) { |
| return false; |
| } |
| } |
| |
| /** Wait until the process shutdown or crash. */ |
| public int waitFor () throws InterruptedException { |
| return process.waitFor(); |
| } |
| |
| /** |
| * Wait until the process shutdown or crash for given timeout in milliseconds. |
| * Returns <code>LocalProcess.PROCESS_IS_ALIVE</code> if process is not terminated |
| * after timeout. |
| */ |
| |
| public int waitFor (long timeMillisec) throws InterruptedException { |
| final Object waitObject = new Object(); |
| |
| class Watcher extends Thread { |
| int exitCode = LocalProcess.PROCESS_IS_ALIVE; |
| Process process; |
| |
| Watcher (Process process) { |
| this.process = process; |
| } |
| |
| public void run () { |
| try { |
| synchronized (this) { |
| exitCode = process.waitFor(); |
| } |
| } catch (InterruptedException ie) { |
| } |
| synchronized (waitObject) { |
| waitObject.notifyAll(); |
| } |
| } |
| |
| synchronized public int getExitCode() { |
| return exitCode; |
| } |
| } |
| |
| Watcher watcher; |
| // yield control to watcher for timeMillisec time. |
| synchronized (waitObject) { |
| watcher = new Watcher(process); |
| watcher.start(); |
| |
| waitObject.wait(timeMillisec); |
| } |
| |
| if (watcher.isAlive()) { |
| watcher.interrupt(); |
| } |
| |
| return watcher.getExitCode(); |
| } |
| |
| // --------------------------------------------------- // |
| |
| /** Get a pipe to write to the process' stdin stream. */ |
| public OutputStream getStdin () { |
| return process.getOutputStream(); |
| } |
| |
| /** Get a pipe to read the process' stdout stream. */ |
| public InputStream getStdout () { |
| return process.getInputStream(); |
| } |
| |
| /** Get a pipe to read the process stderr stream. */ |
| public InputStream getStderr () { |
| return process.getErrorStream(); |
| } |
| |
| /** Kill the process. */ |
| protected void kill() { |
| process.destroy(); |
| } |
| |
| /** |
| * Finalize mirror by invoking <code>close()</code>. |
| * |
| * @throws Throwable if any throwable exception is thrown during finalization |
| */ |
| protected void finalize() throws Throwable { |
| kill(); |
| super.finalize(); |
| } |
| } |