// Copyright 2012 Citrix Systems, Inc. Licensed under the
// Apache License, Version 2.0 (the "License"); you may not use this
// file except in compliance with the License. Citrix Systems, Inc.
// reserves all rights not expressly granted by 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.
//
// Automatically generated by addcopyright.py at 04/03/2012
package com.cloud.utils.db;
import java.lang.reflect.Method;
import net.sf.cglib.proxy.CallbackFilter;
public class DatabaseCallbackFilter implements CallbackFilter {
@Override
public int accept(Method method) {
return checkAnnotation(method) ? 1 : 0;
}
public static boolean checkAnnotation(Method method) {
/*Check self*/
DB db = method.getAnnotation(DB.class);
if (db != null) {
return db.txn();
}
Class<?> clazz = method.getDeclaringClass();
/*Check parent method*/
try {
Method pMethod = clazz.getMethod(method.getName(), method.getParameterTypes());
db = pMethod.getAnnotation(DB.class);
if (db != null) {
return db.txn();
}
} catch (SecurityException e) {
} catch (NoSuchMethodException e) {
}
/*Check class's annotation and ancestor's annotation*/
do {
db = clazz.getAnnotation(DB.class);
if (db != null) {
return db.txn();
}
clazz = clazz.getSuperclass();
} while (clazz != Object.class && clazz != null);
return false;
}
}