| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. 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. For additional information regarding |
| * copyright in this work, please see the NOTICE file in the top level |
| * directory of this distribution. |
| */ |
| |
| package org.apache.roller.weblogger.business.runnable; |
| |
| import org.apache.commons.logging.Log; |
| import org.apache.commons.logging.LogFactory; |
| import org.apache.roller.weblogger.business.Weblogger; |
| import org.apache.roller.weblogger.business.WebloggerFactory; |
| |
| |
| /** |
| * A generic worker thread that knows how execute a Job. |
| */ |
| public class WorkerThread extends Thread { |
| |
| private static Log log = LogFactory.getLog(WorkerThread.class); |
| |
| String id = null; |
| Job job = null; |
| |
| |
| /** |
| * A simple worker. |
| */ |
| public WorkerThread(String id) { |
| super(id); |
| this.id = id; |
| } |
| |
| |
| /** |
| * Start off with a job to do. |
| */ |
| public WorkerThread(String id, Job job) { |
| super(id); |
| this.id = id; |
| this.job = job; |
| } |
| |
| |
| /** |
| * Thread execution. |
| * |
| * We just execute the job we were given if it's non-null. |
| */ |
| public void run() { |
| |
| // we only run once |
| if (this.job != null) { |
| // process job |
| try { |
| this.job.execute(); |
| } catch(Exception e) { |
| // oops |
| log.error("Error executing job. "+ |
| "Worker = "+this.id+", "+ |
| "Job = "+this.job.getClass().getName(), e); |
| } finally { |
| // since this is a thread we have to make sure that we tidy up ourselves |
| Weblogger roller = WebloggerFactory.getWeblogger(); |
| roller.release(); |
| } |
| } |
| |
| } |
| |
| |
| /** |
| * Set the job for this worker. |
| */ |
| public void setJob(Job newJob) { |
| log.debug("NEW JOB: "+newJob.getClass().getName()); |
| |
| // set the job |
| this.job = newJob; |
| } |
| |
| } |