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 */
017package org.apache.activemq.broker.region;
018
019import org.apache.activemq.command.Message;
020import org.apache.activemq.usage.MemoryUsage;
021
022public class PendingMarshalUsageTracker implements Runnable {
023    final MemoryUsage usage;
024    int messageSize;
025    public PendingMarshalUsageTracker(final Message message) {
026        usage = message.getMemoryUsage();
027        if (usage != null) {
028            messageSize = message.getSize();
029            usage.increaseUsage(messageSize);
030        }
031    }
032
033    @Override
034    public void run() {
035        if (usage != null) {
036            usage.decreaseUsage(messageSize);
037        }
038    }
039}