| /* |
| * 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.servicemix.jpm.impl; |
| |
| import java.io.BufferedReader; |
| import java.io.File; |
| import java.io.FileInputStream; |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.io.InputStreamReader; |
| import java.io.InterruptedIOException; |
| import java.util.HashMap; |
| import java.util.Map; |
| |
| import org.apache.servicemix.jpm.Process; |
| |
| public class ProcessImpl implements Process { |
| |
| private int pid; |
| //private File input; |
| //private File output; |
| //private File error; |
| |
| public ProcessImpl(int pid/*, File input, File output, File error*/) { |
| this.pid = pid; |
| //this.input = input; |
| //this.output = output; |
| //this.error = error; |
| } |
| |
| public int getPid() { |
| return pid; |
| } |
| |
| public boolean isRunning() throws IOException { |
| if (ScriptUtils.isWindows()) { |
| Map<String, String> props = new HashMap<String, String>(); |
| props.put("${pid}", Integer.toString(pid)); |
| int ret = ScriptUtils.execute("running", props); |
| return ret == 0; |
| } else { |
| try { |
| java.lang.Process process = new java.lang.ProcessBuilder("ps", "-p", Integer.toString(pid)).start(); |
| BufferedReader r = new BufferedReader(new InputStreamReader(process.getInputStream())); |
| r.readLine(); // skip headers |
| String s = r.readLine(); |
| boolean running = s != null && s.length() > 0; |
| int ret = process.waitFor(); |
| return running; |
| } catch (InterruptedException e) { |
| throw new InterruptedIOException(); |
| } |
| } |
| } |
| |
| public void destroy() throws IOException { |
| int ret; |
| if (ScriptUtils.isWindows()) { |
| Map<String, String> props = new HashMap<String, String>(); |
| props.put("${pid}", Integer.toString(pid)); |
| ret = ScriptUtils.execute("destroy", props); |
| } else { |
| ret = ScriptUtils.executeProcess(new java.lang.ProcessBuilder("kill", "-9", Integer.toString(pid))); |
| } |
| if (ret != 0) { |
| throw new IOException("Unable to destroy proces, it may be already terminated"); |
| } |
| } |
| |
| /* |
| public OutputStream getInputStream() throws FileNotFoundException { |
| return new FileOutputStream(input); |
| } |
| |
| public InputStream getOutputStream() throws FileNotFoundException { |
| return new FileInputStream(output); |
| } |
| |
| public InputStream getErrorStream() throws FileNotFoundException { |
| return new FileInputStream(error); |
| } |
| */ |
| |
| public int waitFor() throws InterruptedException { |
| return 0; |
| } |
| |
| public int exitValue() { |
| return 0; |
| } |
| |
| public static Process create(File dir, String command) throws IOException { |
| //File input = File.createTempFile("jpm.", ".input"); |
| //File output = File.createTempFile("jpm.", ".output"); |
| //File error = File.createTempFile("jpm.", ".error"); |
| File pidFile = File.createTempFile("jpm.", ".pid"); |
| try { |
| Map<String, String> props = new HashMap<String, String>(); |
| //props.put("${in.file}", input.getCanonicalPath()); |
| //props.put("${out.file}", output.getCanonicalPath()); |
| //props.put("${err.file}", error.getCanonicalPath()); |
| props.put("${pid.file}", pidFile.getCanonicalPath()); |
| props.put("${dir}", dir != null ? dir.getCanonicalPath() : ""); |
| if (ScriptUtils.isWindows()) { |
| command = command.replaceAll("\"", "\"\""); |
| } |
| props.put("${command}", command); |
| int ret = ScriptUtils.execute("start", props); |
| if (ret != 0) { |
| throw new IOException("Unable to create process (error code: " + ret + ")"); |
| } |
| int pid = readPid(pidFile); |
| return new ProcessImpl(pid/*, input, output, error*/); |
| } finally { |
| pidFile.delete(); |
| } |
| } |
| |
| public static Process attach(int pid) throws IOException { |
| return new ProcessImpl(pid); |
| } |
| |
| private static int readPid(File pidFile) throws IOException { |
| InputStream is = new FileInputStream(pidFile); |
| try { |
| BufferedReader r = new BufferedReader(new InputStreamReader(is)); |
| String pidString = r.readLine(); |
| return Integer.valueOf(pidString); |
| } finally { |
| try { |
| is.close(); |
| } catch (IOException e) {} |
| } |
| } |
| |
| } |