001 /** 002 * Licensed to the Apache Software Foundation (ASF) under one or more 003 * contributor license agreements. See the NOTICE file distributed with 004 * this work for additional information regarding copyright ownership. 005 * The ASF licenses this file to You under the Apache License, Version 2.0 006 * (the "License"); you may not use this file except in compliance with 007 * the License. You may obtain a copy of the License at 008 * 009 * http://www.apache.org/licenses/LICENSE-2.0 010 * 011 * Unless required by applicable law or agreed to in writing, software 012 * distributed under the License is distributed on an "AS IS" BASIS, 013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 014 * See the License for the specific language governing permissions and 015 * limitations under the License. 016 */ 017 package org.apache.activemq.broker.jmx; 018 019 import org.apache.activemq.broker.region.TopicSubscription; 020 021 /** 022 * 023 * @version $Revision: 687043 $ 024 */ 025 public class TopicSubscriptionView extends SubscriptionView implements TopicSubscriptionViewMBean { 026 027 public TopicSubscriptionView(String clientId, TopicSubscription subs) { 028 super(clientId, subs); 029 } 030 031 protected TopicSubscription getTopicSubscription() { 032 return (TopicSubscription)subscription; 033 } 034 035 /** 036 * @return the number of messages discarded due to being a slow consumer 037 */ 038 public int getDiscardedCount() { 039 TopicSubscription topicSubscription = getTopicSubscription(); 040 return topicSubscription != null ? topicSubscription.discarded() : 0; 041 } 042 043 /** 044 * @return the maximun number of messages that can be pending. 045 */ 046 public int getMaximumPendingQueueSize() { 047 TopicSubscription topicSubscription = getTopicSubscription(); 048 return topicSubscription != null ? topicSubscription.getMaximumPendingMessages() : 0; 049 } 050 051 /** 052 * 053 */ 054 public void setMaximumPendingQueueSize(int max) { 055 TopicSubscription topicSubscription = getTopicSubscription(); 056 if (topicSubscription != null) { 057 topicSubscription.setMaximumPendingMessages(max); 058 } 059 } 060 061 062 }