rocketmq-client-nodejs
Version:
RocketMQ Node.js Client
214 lines • 12.3 kB
JavaScript
"use strict";
/**
* 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.
*/
Object.defineProperty(exports, "__esModule", { value: true });
exports.MessageView = void 0;
const node_zlib_1 = require("node:zlib");
const definition_pb_1 = require("../../proto/apache/rocketmq/v2/definition_pb");
const util_1 = require("../util");
class MessageView {
messageId;
topic;
body;
corrupted;
transportDeliveryTimestamp;
tag;
messageGroup;
deliveryTimestamp;
keys;
bornHost;
bornTimestamp;
deliveryAttempt;
endpoints;
receiptHandle;
offset;
decodeTimestamp;
properties = new Map();
liteTopic;
priority;
constructor(message, messageQueue, transportDeliveryTimestamp) {
const systemProperties = message.getSystemProperties();
const bodyDigest = systemProperties.getBodyDigest().toObject();
const digestType = bodyDigest.type;
const checksum = bodyDigest.checksum;
let expectedChecksum = '';
let bodyBytes = Buffer.from(message.getBody_asU8());
switch (digestType) {
case definition_pb_1.DigestType.CRC32:
expectedChecksum = (0, util_1.crc32CheckSum)(bodyBytes);
break;
case definition_pb_1.DigestType.MD5:
expectedChecksum = (0, util_1.md5CheckSum)(bodyBytes);
break;
case definition_pb_1.DigestType.SHA1:
expectedChecksum = (0, util_1.sha1CheckSum)(bodyBytes);
break;
default:
// log.error("Unsupported message body digest algorithm, digestType={}, topic={}, messageId={}",
// digestType, topic, messageId);
}
if (expectedChecksum && expectedChecksum !== checksum) {
this.corrupted = true;
}
if (systemProperties.getBodyEncoding() === definition_pb_1.Encoding.GZIP) {
bodyBytes = (0, node_zlib_1.gunzipSync)(bodyBytes);
}
for (const [key, value] of message.getUserPropertiesMap().entries()) {
this.properties.set(key, value);
}
this.messageId = systemProperties.getMessageId();
this.topic = message.getTopic().getName();
this.tag = systemProperties.getTag();
this.messageGroup = systemProperties.getMessageGroup();
this.deliveryTimestamp = systemProperties.getDeliveryTimestamp()?.toDate();
this.keys = systemProperties.getKeysList();
this.bornHost = systemProperties.getBornHost();
this.bornTimestamp = systemProperties.getBornTimestamp()?.toDate();
this.deliveryAttempt = systemProperties.getDeliveryAttempt();
this.offset = systemProperties.getQueueOffset();
this.receiptHandle = systemProperties.getReceiptHandle();
this.transportDeliveryTimestamp = transportDeliveryTimestamp;
this.liteTopic = systemProperties.getLiteTopic();
this.priority = systemProperties.getPriority();
if (messageQueue) {
this.endpoints = messageQueue.broker.endpoints;
}
this.body = bodyBytes;
}
/**
* Get the lite topic, which makes sense only when the topic type is LITE.
*
* @return lite topic, which is optional, undefined means lite topic is not specified.
*/
getLiteTopic() {
return this.liteTopic;
}
/**
* Get the priority of the message, which makes sense only when topic type is priority.
*
* @return message priority, which is optional, undefined means priority is not specified.
*/
getPriority() {
return this.priority;
}
/**
* Get the unique id of the message.
*
* @return unique id.
*/
getMessageId() {
return this.messageId;
}
/**
* Get the topic of the message, which is the first classifier for the message.
*
* @return topic of the message.
*/
getTopic() {
return this.topic;
}
/**
* Get the deep copy of the message body, which means any modification of the return value does not
* affect the built-in message body.
*
* @return the deep copy of message body.
*/
getBody() {
return Buffer.from(this.body);
}
/**
* Get the deep copy of message properties, which makes the modifies of return value does
* not affect the message itself.
*
* @return the deep copy of message properties.
*/
getProperties() {
return new Map(this.properties);
}
/**
* Get the tag of the message, which is the second classifier besides the topic.
*
* @return the tag of message, which is optional, undefined means tag does not exist.
*/
getTag() {
return this.tag;
}
/**
* Get the key collection of the message, which means any modification of the return value does not affect the
* built-in message key collection.
*
* @return copy of the key collection of the message, empty array means message key is not specified.
*/
getKeys() {
return [...this.keys];
}
/**
* Get the message group, which makes sense only when the topic type is FIFO(First In, First Out).
*
* @return message group, which is optional, undefined means message group is not specified.
*/
getMessageGroup() {
return this.messageGroup;
}
/**
* Get the expected delivery timestamp, which makes sense only when the topic type is delay.
*
* @return message expected delivery timestamp, which is optional, undefined means delivery timestamp is not specified.
*/
getDeliveryTimestamp() {
return this.deliveryTimestamp;
}
/**
* Get the born host of the message.
*
* @return born host of the message.
*/
getBornHost() {
return this.bornHost;
}
/**
* Get the born timestamp of the message.
*
* <p>Born time means the timestamp that the message is prepared to send rather than the timestamp the
* Message was built.
*
* @return born timestamp of the message.
*/
getBornTimestamp() {
return this.bornTimestamp;
}
/**
* Get the delivery attempt for the message.
*
* @return delivery attempt.
*/
getDeliveryAttempt() {
return this.deliveryAttempt;
}
/**
* Increment the delivery attempt and return the new value.
* Used by FIFO retry logic to track redelivery attempts.
*
* @return the incremented delivery attempt
*/
incrementAndGetDeliveryAttempt() {
this.deliveryAttempt = (this.deliveryAttempt ?? 0) + 1;
return this.deliveryAttempt;
}
}
exports.MessageView = MessageView;
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