001/* 002 * Copyright 2002-2013 the original author or authors. 003 * 004 * Licensed under the Apache License, Version 2.0 (the "License"); 005 * you may not use this file except in compliance with the License. 006 * You may obtain a copy of the License at 007 * 008 * https://www.apache.org/licenses/LICENSE-2.0 009 * 010 * Unless required by applicable law or agreed to in writing, software 011 * distributed under the License is distributed on an "AS IS" BASIS, 012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 013 * See the License for the specific language governing permissions and 014 * limitations under the License. 015 */ 016 017package org.springframework.jca.work.glassfish; 018 019import java.lang.reflect.Method; 020import javax.resource.spi.work.WorkManager; 021 022import org.springframework.jca.work.WorkManagerTaskExecutor; 023import org.springframework.util.ReflectionUtils; 024 025/** 026 * Spring TaskExecutor adapter for the GlassFish JCA WorkManager. 027 * Can be defined in web applications to make a TaskExecutor reference 028 * available, talking to the GlassFish WorkManager (thread pool) underneath. 029 * 030 * <p>This is the GlassFish equivalent of the CommonJ 031 * {@link org.springframework.scheduling.commonj.WorkManagerTaskExecutor} 032 * adapter for WebLogic and WebSphere. 033 * 034 * <p>Note: On GlassFish 4 and higher, a 035 * {@link org.springframework.scheduling.concurrent.DefaultManagedTaskExecutor} 036 * should be preferred, following JSR-236 support in Java EE 7. 037 * 038 * @author Juergen Hoeller 039 * @since 2.5.2 040 */ 041public class GlassFishWorkManagerTaskExecutor extends WorkManagerTaskExecutor { 042 043 private static final String WORK_MANAGER_FACTORY_CLASS = "com.sun.enterprise.connectors.work.WorkManagerFactory"; 044 045 private final Method getWorkManagerMethod; 046 047 048 public GlassFishWorkManagerTaskExecutor() { 049 try { 050 Class<?> wmf = getClass().getClassLoader().loadClass(WORK_MANAGER_FACTORY_CLASS); 051 this.getWorkManagerMethod = wmf.getMethod("getWorkManager", String.class); 052 } 053 catch (Exception ex) { 054 throw new IllegalStateException( 055 "Could not initialize GlassFishWorkManagerTaskExecutor because GlassFish API is not available", ex); 056 } 057 } 058 059 /** 060 * Identify a specific GlassFish thread pool to talk to. 061 * <p>The thread pool name matches the resource adapter name 062 * in default RAR deployment scenarios. 063 */ 064 public void setThreadPoolName(String threadPoolName) { 065 WorkManager wm = (WorkManager) ReflectionUtils.invokeMethod(this.getWorkManagerMethod, null, threadPoolName); 066 if (wm == null) { 067 throw new IllegalArgumentException("Specified thread pool name '" + threadPoolName + 068 "' does not correspond to an actual pool definition in GlassFish. Check your configuration!"); 069 } 070 setWorkManager(wm); 071 } 072 073 /** 074 * Obtains GlassFish's default thread pool. 075 */ 076 @Override 077 protected WorkManager getDefaultWorkManager() { 078 return (WorkManager) ReflectionUtils.invokeMethod(this.getWorkManagerMethod, null, new Object[] {null}); 079 } 080 081}