| /* |
| * 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.hadoop.chukwa.inputtools.plugin.metrics; |
| |
| |
| import java.util.Timer; |
| import java.util.TimerTask; |
| import org.apache.commons.logging.Log; |
| import org.apache.commons.logging.LogFactory; |
| import org.apache.hadoop.chukwa.inputtools.plugin.IPlugin; |
| import org.json.simple.JSONObject; |
| |
| public class Exec extends TimerTask { |
| private static Log log = LogFactory.getLog(Exec.class); |
| private String cmde = null; |
| private IPlugin plugin = null; |
| |
| public Exec(String[] cmds) { |
| StringBuffer c = new StringBuffer(); |
| for (String cmd : cmds) { |
| c.append(cmd); |
| c.append(" "); |
| } |
| cmde = c.toString(); |
| plugin = new ExecHelper(cmds); |
| } |
| |
| public void run() { |
| try { |
| JSONObject result = plugin.execute(); |
| int status = (Integer) result.get("status"); |
| if (status < 0) { |
| System.out.println("Error"); |
| log.warn("[ChukwaError]:" + Exec.class + ", " |
| + result.get("stderr")); |
| } else { |
| log.info(result.get("stdout")); |
| } |
| } catch (Exception e) { |
| log.error("Exec output unparsable:" + this.cmde); |
| } |
| } |
| |
| public String getCmde() { |
| return cmde; |
| } |
| |
| public static void main(String[] args) { |
| int period = 60; |
| try { |
| if (System.getProperty("PERIOD") != null) { |
| period = Integer.parseInt(System.getProperty("PERIOD")); |
| } |
| } catch (NumberFormatException ex) { |
| ex.printStackTrace(); |
| System.out |
| .println("Usage: java -DPERIOD=nn -DRECORD_TYPE=recordType Exec [cmd]"); |
| System.out.println("PERIOD should be numeric format of seconds."); |
| return; |
| } |
| Timer timer = new Timer(); |
| timer.schedule(new Exec(args), 0, period * 1000); |
| } |
| } |