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.command; 018 019import org.apache.activemq.state.CommandVisitor; 020 021/** 022 * A ProducerAck command is sent by a broker to a producer to let it know it has 023 * received and processed messages that it has produced. The producer will be 024 * flow controlled if it does not receive ProducerAck commands back from the 025 * broker. 026 * 027 * @openwire:marshaller code="19" version="3" 028 * 029 */ 030public class ProducerAck extends BaseCommand { 031 032 public static final byte DATA_STRUCTURE_TYPE = CommandTypes.PRODUCER_ACK; 033 034 protected ProducerId producerId; 035 protected int size; 036 037 public ProducerAck() { 038 } 039 040 public ProducerAck(ProducerId producerId, int size) { 041 this.producerId = producerId; 042 this.size = size; 043 } 044 045 public void copy(ProducerAck copy) { 046 super.copy(copy); 047 copy.producerId = producerId; 048 copy.size = size; 049 } 050 051 public byte getDataStructureType() { 052 return DATA_STRUCTURE_TYPE; 053 } 054 055 public Response visit(CommandVisitor visitor) throws Exception { 056 return visitor.processProducerAck(this); 057 } 058 059 /** 060 * The producer id that this ack message is destined for. 061 * 062 * @openwire:property version=3 063 */ 064 public ProducerId getProducerId() { 065 return producerId; 066 } 067 068 public void setProducerId(ProducerId producerId) { 069 this.producerId = producerId; 070 } 071 072 /** 073 * The number of bytes that are being acked. 074 * 075 * @openwire:property version=3 076 */ 077 public int getSize() { 078 return size; 079 } 080 081 public void setSize(int size) { 082 this.size = size; 083 } 084 085}