| /* |
| * 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.sling.commons.scheduler.impl; |
| |
| import java.util.Date; |
| import java.util.Iterator; |
| |
| import org.apache.sling.commons.threads.ThreadPool; |
| import org.apache.sling.commons.threads.ThreadPoolManager; |
| import org.quartz.SchedulerException; |
| import org.quartz.impl.DirectSchedulerFactory; |
| import org.quartz.simpl.RAMJobStore; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| /** |
| * A per thread pool quartz scheduler |
| */ |
| public class SchedulerProxy { |
| |
| private static final String PREFIX = "Apache Sling Quartz Scheduler "; |
| |
| private static final String QUARTZ_SCHEDULER_NAME = "ApacheSling"; |
| |
| /** Default logger. */ |
| private final Logger logger = LoggerFactory.getLogger(this.getClass()); |
| |
| /** The quartz scheduler. */ |
| private final org.quartz.Scheduler scheduler; |
| |
| private final ThreadPoolManager threadPoolManager; |
| |
| private final ThreadPool threadPool; |
| |
| private final String poolName; |
| |
| public SchedulerProxy(final ThreadPoolManager manager, |
| final String pName) throws SchedulerException { |
| // sanity null check |
| if ( manager == null ) { |
| throw new SchedulerException("Thread pool manager missing"); |
| } |
| if ( pName == null ) { |
| throw new SchedulerException("Thread pool name missing"); |
| } |
| |
| this.threadPoolManager = manager; |
| this.poolName = pName; |
| |
| // create the pool |
| this.threadPool = this.threadPoolManager.get(poolName); |
| final QuartzThreadPool quartzPool = new QuartzThreadPool(this.threadPool); |
| |
| boolean succeeded = false; |
| |
| try { |
| final String name = QUARTZ_SCHEDULER_NAME + this.poolName.replace(' ', '_'); |
| final DirectSchedulerFactory factory = DirectSchedulerFactory.getInstance(); |
| // unique run id |
| final String runID = new Date().toString().replace(' ', '_') + this.hashCode(); |
| |
| factory.createScheduler(name, runID, quartzPool, new RAMJobStore()); |
| // quartz does not provide a way to get the scheduler by name AND runID, so we have to iterate! |
| final Iterator<org.quartz.Scheduler> allSchedulersIter = factory.getAllSchedulers().iterator(); |
| org.quartz.Scheduler s = null; |
| while ( s == null && allSchedulersIter.hasNext() ) { |
| final org.quartz.Scheduler current = allSchedulersIter.next(); |
| if ( name.equals(current.getSchedulerName()) |
| && runID.equals(current.getSchedulerInstanceId()) ) { |
| s = current; |
| } |
| } |
| if ( s == null ) { |
| throw new SchedulerException("Unable to find new scheduler with name " + name + " and run ID " + runID); |
| } |
| |
| s.start(); |
| if ( this.logger.isDebugEnabled() ) { |
| this.logger.debug("{}for pool {} started.", PREFIX, poolName); |
| } |
| this.scheduler = s; |
| succeeded = true; |
| } finally { |
| if ( !succeeded) { |
| this.threadPoolManager.release(this.threadPool); |
| } |
| } |
| } |
| |
| /** |
| * Dispose the quartz scheduler |
| */ |
| public void dispose() { |
| try { |
| this.scheduler.shutdown(); |
| } catch (SchedulerException e) { |
| this.logger.debug("Exception during shutdown of scheduler.", e); |
| } |
| if ( this.logger.isDebugEnabled() ) { |
| this.logger.debug("{}for pool {} stopped.", PREFIX, poolName); |
| } |
| |
| this.threadPoolManager.release(this.threadPool); |
| } |
| |
| public org.quartz.Scheduler getScheduler() { |
| return this.scheduler; |
| } |
| } |