/*
* Copyright 2013 The Sculptor Project Team, including 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.sculptor.framework.accessimpl.mongodb;
import org.aopalliance.intercept.MethodInterceptor;
import org.aopalliance.intercept.MethodInvocation;
/**
* This advice injects the configured {@link DbManager} instance in the
* {@link ThreadLocal} storage of {@link DbManager#getThreadInstance()}. The
* thread instance is typically used from DomainObjects when lazy loading
* associations.
*
* @author Patrik Nordwall
*/
public class DbManagerAdvice implements MethodInterceptor {
private DbManager dbManager;
public Object invoke(MethodInvocation invocation) throws Throwable {
if (DbManager.getThreadInstance() != null || dbManager == null) {
// this is not the first advice and it should therefore be ignored
// it is the first advice that is responsible for setting/clearing
// the DbManager
return invocation.proceed();
}
try {
DbManager.setThreadInstance(dbManager);
dbManager.requestStart();
return invocation.proceed();
} finally {
dbManager.requestDone();
DbManager.setThreadInstance(null);
}
}
public DbManager getDbManager() {
return dbManager;
}
public void setDbManager(DbManager dbManager) {
this.dbManager = dbManager;
}
}