QuiesceInterceptor.java

/*
 * 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.aries.blueprint.container;

import java.lang.reflect.Method;

import org.apache.aries.blueprint.Interceptor;
import org.osgi.service.blueprint.reflect.ComponentMetadata;

public class QuiesceInterceptor implements Interceptor{

	private ServiceRecipe serviceRecipe;
	
	public QuiesceInterceptor(ServiceRecipe serviceRecipe)
	{
		this.serviceRecipe = serviceRecipe;
	}
	
    public Object preCall(ComponentMetadata cm, Method m, Object... parameters) throws Throwable
    {
   		serviceRecipe.incrementActiveCalls();
    	
    	return null;
    }
    
    public void postCallWithReturn(ComponentMetadata cm, Method m, Object returnType, Object preCallToken) throws Throwable
    {
    	serviceRecipe.decrementActiveCalls();
    }

    public void postCallWithException(ComponentMetadata cm, Method m, Throwable ex, Object preCallToken) throws Throwable
    {
    	serviceRecipe.decrementActiveCalls();
    }
   
    public int getRank()
    {
    	return 0;
    }
}