| /* |
| * Copyright (c) 2004, 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. |
| */ |
| |
| /** |
| * |
| */ |
| |
| import java.io.*; |
| import java.util.Properties; |
| |
| public class JavaProcess { |
| |
| protected Process process = null; |
| |
| private String classname; |
| private StringBuilder classArgs; |
| private StringBuilder javaOptions; |
| |
| private static String java = System.getProperty("java.home") |
| + File.separator + "bin" |
| + File.separator + "java"; |
| |
| public JavaProcess(String classname) { |
| this(classname, "", ""); |
| } |
| |
| public JavaProcess(String classname, String classArgs) { |
| this(classname, "", classArgs); |
| } |
| |
| public JavaProcess(String classname, String javaOptions, String classArgs) { |
| this.classname = classname; |
| this.javaOptions = new StringBuilder(javaOptions); |
| this.classArgs = new StringBuilder(classArgs); |
| } |
| |
| /** |
| * add java options to the java command |
| */ |
| public void addOptions(String[] opts) { |
| if (javaOptions != null && javaOptions.length() > 0) { |
| javaOptions.append(" "); |
| } |
| |
| for (int i = 0; i < opts.length; i++) { |
| if (i != 0) { |
| javaOptions.append(" "); |
| } |
| javaOptions.append(opts[i]); |
| } |
| } |
| |
| /** |
| * add arguments to the class arguments |
| */ |
| public void addArguments(String[] args) { |
| if (classArgs != null && classArgs.length() > 0) { |
| classArgs.append(" "); |
| } |
| |
| for (int i = 0; i < args.length; i++) { |
| if (i != 0) { |
| classArgs.append(" "); |
| } |
| classArgs.append(args[i]); |
| } |
| } |
| |
| /** |
| * start the java process |
| */ |
| public void start() throws IOException { |
| if (process != null) { |
| return; |
| } |
| |
| String javaCommand = java + " " + javaOptions + " " |
| + classname + " " + classArgs; |
| |
| System.out.println("exec'ing: " + javaCommand); |
| |
| process = Runtime.getRuntime().exec(javaCommand); |
| } |
| |
| /** |
| * destroy the java process |
| */ |
| public void destroy() { |
| if (process != null) { |
| process.destroy(); |
| } |
| process = null; |
| } |
| |
| public int exitValue() { |
| if (process != null) { |
| return process.exitValue(); |
| } |
| throw new RuntimeException("exitValue called with process == null"); |
| } |
| |
| public InputStream getErrorStream() { |
| if (process != null) { |
| return process.getErrorStream(); |
| } |
| throw new RuntimeException( |
| "getErrorStream() called with process == null"); |
| } |
| |
| public InputStream getInputStream() { |
| if (process != null) { |
| return process.getInputStream(); |
| } |
| throw new RuntimeException( |
| "getInputStream() called with process == null"); |
| } |
| |
| public OutputStream getOutputStream() { |
| if (process != null) { |
| return process.getOutputStream(); |
| } |
| throw new RuntimeException( |
| "getOutputStream() called with process == null"); |
| } |
| |
| public int waitFor() throws InterruptedException { |
| if (process != null) { |
| return process.waitFor(); |
| } |
| throw new RuntimeException("waitFor() called with process == null"); |
| } |
| } |