net.sf.ehcache.transaction.manager.selector.FactorySelector Maven / Gradle / Ivy
/**
* Copyright Terracotta, Inc.
*
* 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 net.sf.ehcache.transaction.manager.selector;
import net.sf.ehcache.util.ClassLoaderUtil;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import javax.transaction.TransactionManager;
/**
* Abstract selector for calling a factory method
*
* @author Ludovic Orban
*/
public abstract class FactorySelector extends Selector {
private static final Logger LOG = LoggerFactory.getLogger(FactorySelector.class);
private final String factoryClassName;
private final String factoryMethodName;
/**
* Constructor
*
* @param vendor the transaction manager vendor name
* @param factoryClassName the class used to lookup the transaction manager
* @param factoryMethodName the method to be called on the class used to lookup the transaction manager
*/
public FactorySelector(String vendor, String factoryClassName, String factoryMethodName) {
super(vendor);
this.factoryClassName = factoryClassName;
this.factoryMethodName = factoryMethodName;
}
/**
* {@inheritDoc}
*/
@Override
protected TransactionManager doLookup() {
TransactionManager transactionManager = null;
try {
Class factoryClass = ClassLoaderUtil.loadClass(factoryClassName);
Class[] signature = null;
Object[] args = null;
Method method = factoryClass.getMethod(factoryMethodName, signature);
transactionManager = (TransactionManager) method.invoke(null, args);
} catch (ClassNotFoundException e) {
LOG.debug("FactorySelector failed lookup", e);
} catch (NoSuchMethodException e) {
LOG.debug("FactorySelector failed lookup", e);
} catch (InvocationTargetException e) {
LOG.debug("FactorySelector failed lookup", e);
} catch (IllegalAccessException e) {
LOG.debug("FactorySelector failed lookup", e);
}
return transactionManager;
}
}