/*
* Copyright 2002-2010 the original author or authors.
*
* Licensed 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.springframework.jca.work.glassfish;
import java.lang.reflect.Method;
import javax.resource.spi.work.WorkManager;
import org.springframework.jca.work.WorkManagerTaskExecutor;
import org.springframework.util.ReflectionUtils;
/**
* Spring TaskExecutor adapter for the GlassFish JCA WorkManager.
* Can be defined in web applications to make a TaskExecutor reference
* available, talking to the GlassFish WorkManager (thread pool) underneath.
*
* <p>This is the GlassFish equivalent of the CommonJ
* {@link org.springframework.scheduling.commonj.WorkManagerTaskExecutor}
* adapter for WebLogic and WebSphere.
*
* @author Juergen Hoeller
* @since 2.5.2
* @see com.sun.enterprise.connectors.work.WorkManagerFactory
*/
public class GlassFishWorkManagerTaskExecutor extends WorkManagerTaskExecutor {
private static final String WORK_MANAGER_FACTORY_CLASS = "com.sun.enterprise.connectors.work.WorkManagerFactory";
private final Method getWorkManagerMethod;
public GlassFishWorkManagerTaskExecutor() {
try {
Class wmf = getClass().getClassLoader().loadClass(WORK_MANAGER_FACTORY_CLASS);
this.getWorkManagerMethod = wmf.getMethod("getWorkManager", new Class[] {String.class});
}
catch (Exception ex) {
throw new IllegalStateException(
"Could not initialize GlassFishWorkManagerTaskExecutor because GlassFish API is not available: " + ex);
}
}
/**
* Identify a specific GlassFish thread pool to talk to.
* <p>The thread pool name matches the resource adapter name
* in default RAR deployment scenarios.
*/
public void setThreadPoolName(String threadPoolName) {
WorkManager wm = (WorkManager) ReflectionUtils.invokeMethod(this.getWorkManagerMethod, null, threadPoolName);
if (wm == null) {
throw new IllegalArgumentException("Specified thread pool name '" + threadPoolName +
"' does not correspond to an actual pool definition in GlassFish. Check your configuration!");
}
setWorkManager(wm);
}
/**
* Obtains GlassFish's default thread pool.
*/
@Override
protected WorkManager getDefaultWorkManager() {
return (WorkManager) ReflectionUtils.invokeMethod(this.getWorkManagerMethod, null, new Object[] {null});
}
}
|