/**
*
* Copyright
* 2009-2015 Jayway Products AB
* 2016-2017 Föreningen Sambruk
*
* Licensed under AGPL, Version 3.0 (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.gnu.org/licenses/agpl.txt
*
* 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 se.streamsource.infrastructure.circuitbreaker.service;
import org.qi4j.api.common.AppliesTo;
import org.qi4j.api.concern.GenericConcern;
import org.qi4j.api.injection.scope.This;
import se.streamsource.infrastructure.circuitbreaker.CircuitBreaker;
import java.lang.reflect.Method;
/**
* This concern will update the circuit breaker on method invocation success
* and thrown exceptions.
*/
@AppliesTo(BreaksCircuitOnThrowable.class)
public class BreakCircuitConcern
extends GenericConcern
{
@This ServiceCircuitBreaker serviceCircuitBreaker;
public Object invoke( Object proxy, Method method, Object[] args ) throws Throwable
{
CircuitBreaker circuitBreaker = serviceCircuitBreaker.getCircuitBreaker();
try
{
if (!circuitBreaker.isOn())
throw circuitBreaker.getLastThrowable();
Object result = next.invoke( proxy, method, args );
circuitBreaker.success();
return result;
} catch (Throwable throwable)
{
circuitBreaker.throwable( throwable );
throw throwable;
}
}
}