/*
    * 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.commons.monitoring.spring;
  
  import org.aopalliance.aop.Advice;
  import org.apache.commons.monitoring.aop.DefaultMonitorNameExtractor;
  import org.apache.commons.monitoring.aop.MonitorNameExtractor;
  import org.springframework.aop.Advisor;
  import org.springframework.aop.Pointcut;
  import org.springframework.aop.PointcutAdvisor;
  import org.springframework.aop.framework.autoproxy.AbstractAdvisorAutoProxyCreator;
  import org.springframework.aop.support.DefaultPointcutAdvisor;
  
  import java.util.ArrayList;
  import java.util.List;
  
  /**
   * Creates monitored proxies for beans that match a pointcut.
   *
   * @author <a href="mailto:nicolas@apache.org">Nicolas De Loof</a>
   */
  public class PointcutMonitoringAutoProxyCreator extends AbstractAdvisorAutoProxyCreator {
      private MonitorNameExtractor monitorNameExtractor = DefaultMonitorNameExtractor.INSTANCE;
      private Pointcut pointcut;
  
      @Override
      protected List<Advisor> findCandidateAdvisors() {
          final AopaliancePerformanceInterceptor interceptor = new AopaliancePerformanceInterceptor();
          interceptor.setMonitorNameExtractor(monitorNameExtractor);
  
          final PointcutAdvisor adivsor = createPointcutAdvisor(interceptor);
  
          final List<Advisor> adivisors = new ArrayList<Advisor>(1);
          adivisors.add(adivsor);
          return adivisors;
      }
  
      protected PointcutAdvisor createPointcutAdvisor(Advice advice) {
          return new DefaultPointcutAdvisor(pointcut, advice);
      }
  
      public void setMonitorNameExtractor(final MonitorNameExtractor monitorNameExtractor) {
          this.monitorNameExtractor = monitorNameExtractor;
      }
  
      public void setPointcut(final Pointcut pointcut) {
          this.pointcut = pointcut;
      }
  
      public MonitorNameExtractor getMonitorNameExtractor() {
          return monitorNameExtractor;
      }
  }