com.alibaba.rocketmq.common.message.MessageConst Maven / Gradle / Ivy
/**
* Copyright (C) 2010-2013 Alibaba Group Holding Limited
*
* Licensed 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 com.alibaba.rocketmq.common.message;
import java.util.HashSet;
public class MessageConst {
/**
* 消息关键词，多个Key用KEY_SEPARATOR隔开（查询消息使用）
*/
public static final String PROPERTY_KEYS = "KEYS";
/**
* 消息标签，只支持设置一个Tag（服务端消息过滤使用）
*/
public static final String PROPERTY_TAGS = "TAGS";
/**
* 是否等待服务器将消息存储完毕再返回（可能是等待刷盘完成或者等待同步复制到其他服务器）
*/
public static final String PROPERTY_WAIT_STORE_MSG_OK = "WAIT";
/**
* 消息延时投递时间级别，0表示不延时，大于0表示特定延时级别（具体级别在服务器端定义）
*/
public static final String PROPERTY_DELAY_TIME_LEVEL = "DELAY";
/**
* 内部使用
*/
public static final String PROPERTY_RETRY_TOPIC = "RETRY_TOPIC";
public static final String PROPERTY_REAL_TOPIC = "REAL_TOPIC";
public static final String PROPERTY_REAL_QUEUE_ID = "REAL_QID";
public static final String PROPERTY_TRANSACTION_PREPARED = "TRAN_MSG";
public static final String PROPERTY_PRODUCER_GROUP = "PGROUP";
public static final String PROPERTY_MIN_OFFSET = "MIN_OFFSET";
public static final String PROPERTY_MAX_OFFSET = "MAX_OFFSET";
public static final String PROPERTY_BUYER_ID = "BUYER_ID";
public static final String PROPERTY_ORIGIN_MESSAGE_ID = "ORIGIN_MESSAGE_ID";
public static final String PROPERTY_TRANSFER_FLAG = "TRANSFER_FLAG";
public static final String PROPERTY_CORRECTION_FLAG = "CORRECTION_FLAG";
public static final String PROPERTY_MQ2_FLAG = "MQ2_FLAG";
public static final String PROPERTY_RECONSUME_TIME = "RECONSUME_TIME";
public static final String PROPERTY_MSG_REGION = "MSG_REGION";
public static final String PROPERTY_UNIQ_CLIENT_MESSAGE_ID_KEYIDX = "UNIQ_KEY";
public static final String PROPERTY_MAX_RECONSUME_TIMES = "MAX_RECONSUME_TIMES";
public static final String PROPERTY_CONSUME_START_TIMESTAMP = "CONSUME_START_TIME";
public static final String KEY_SEPARATOR = " ";
public static final HashSet systemKeySet = new HashSet();
static {
systemKeySet.add(PROPERTY_MSG_REGION);
systemKeySet.add(PROPERTY_KEYS);
systemKeySet.add(PROPERTY_TAGS);
systemKeySet.add(PROPERTY_WAIT_STORE_MSG_OK);
systemKeySet.add(PROPERTY_DELAY_TIME_LEVEL);
systemKeySet.add(PROPERTY_RETRY_TOPIC);
systemKeySet.add(PROPERTY_REAL_TOPIC);
systemKeySet.add(PROPERTY_REAL_QUEUE_ID);
systemKeySet.add(PROPERTY_TRANSACTION_PREPARED);
systemKeySet.add(PROPERTY_PRODUCER_GROUP);
systemKeySet.add(PROPERTY_MIN_OFFSET);
systemKeySet.add(PROPERTY_MAX_OFFSET);
systemKeySet.add(PROPERTY_BUYER_ID);
systemKeySet.add(PROPERTY_ORIGIN_MESSAGE_ID);
systemKeySet.add(PROPERTY_TRANSFER_FLAG);
systemKeySet.add(PROPERTY_CORRECTION_FLAG);
systemKeySet.add(PROPERTY_MQ2_FLAG);
systemKeySet.add(PROPERTY_RECONSUME_TIME);
systemKeySet.add(PROPERTY_UNIQ_CLIENT_MESSAGE_ID_KEYIDX);
systemKeySet.add(PROPERTY_MAX_RECONSUME_TIMES);
systemKeySet.add(PROPERTY_CONSUME_START_TIMESTAMP);
}
}