/*******************************************************************************
* 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.ofbiz.entity.transaction;
import org.apache.ofbiz.base.util.Debug;
import org.apache.ofbiz.entity.GenericEntityConfException;
import org.apache.ofbiz.entity.config.model.EntityConfig;
/**
* TransactionFactoryLoader - utility class that loads the transaction manager and provides to client code a reference to it (TransactionFactory)
*/
public class TransactionFactoryLoader {
public static final String module = TransactionFactoryLoader.class.getName();
private static final TransactionFactory txFactory = createTransactionFactory();
private static TransactionFactory createTransactionFactory() {
TransactionFactory instance = null;
try {
String className = EntityConfig.getInstance().getTransactionFactory().getClassName();
if (className == null) {
throw new IllegalStateException("Could not find transaction factory class name definition");
}
ClassLoader loader = Thread.currentThread().getContextClassLoader();
Class<?> tfClass = loader.loadClass(className);
instance = (TransactionFactory) tfClass.newInstance();
} catch (GenericEntityConfException gece) {
Debug.logError(gece, "Could not find transaction factory class name definition", module);
} catch (ClassNotFoundException cnfe) {
Debug.logError(cnfe, "Could not find transaction factory class", module);
} catch (Exception e) {
Debug.logError(e, "Unable to instantiate the transaction factory", module);
}
return instance;
}
public static TransactionFactory getInstance() {
if (txFactory == null) {
throw new IllegalStateException("The Transaction Factory is not initialized.");
}
return txFactory;
}
}