com.tencent.devops.common.log.utils.LogMQEventDispatcher.kt Maven / Gradle / Ivy

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/*
 * Tencent is pleased to support the open source community by making BK-CI 蓝鲸持续集成平台 available.
 *
 * Copyright (C) 2019 THL A29 Limited, a Tencent company.  All rights reserved.
 *
 * BK-CI 蓝鲸持续集成平台 is licensed under the MIT license.
 *
 * A copy of the MIT License is included in this file.
 *
 *
 * Terms of the MIT License:
 * ---------------------------------------------------
 * Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated
 * documentation files (the "Software"), to deal in the Software without restriction, including without limitation the
 * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to
 * permit persons to whom the Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all copies or substantial portions of
 * the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT
 * LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
 * NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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 */

package com.tencent.devops.common.log.utils

import com.tencent.devops.common.event.annotation.Event
import com.tencent.devops.common.log.pojo.ILogEvent
import com.tencent.devops.common.log.pojo.LogEvent
import com.tencent.devops.common.service.utils.CommonUtils
import com.tencent.devops.common.web.mq.EXTEND_RABBIT_TEMPLATE_NAME
import org.slf4j.LoggerFactory
import org.springframework.amqp.rabbit.core.RabbitTemplate
import org.springframework.beans.factory.annotation.Value
import javax.annotation.Resource

class LogMQEventDispatcher(
    @Resource(name = EXTEND_RABBIT_TEMPLATE_NAME)
    private val rabbitTemplate: RabbitTemplate
) {

    @Value("\${log.limit.lineMaxLength:#{null}}")
    private val lineMaxLength: Int? = null

    fun dispatch(event: ILogEvent) {
        try {
            // 如果配置了长度限制才做截断处理
            if (event is LogEvent && lineMaxLength != null) fixEvent(event)
            val eventType = event::class.java.annotations.find { s -> s is Event } as Event
            rabbitTemplate.convertAndSend(eventType.exchange, eventType.routeKey, event) { message ->
                // 事件中的变量指定
                if (event.delayMills > 0) {
                    message.messageProperties.setHeader("x-delay", event.delayMills)
                } else if (eventType.delayMills > 0) {
                    // 事件类型固化默认值
                    message.messageProperties.setHeader("x-delay", eventType.delayMills)
                }
                message
            }
        } catch (ignored: Throwable) {
            logger.error("Fail to dispatch the event($event)", ignored)
        }
    }

    private fun fixEvent(logEvent: LogEvent) {
        // 字符数超过32766时analyzer索引分析将失效，同时为保护系统稳定性，若配置值为空或负数则限制为32KB
        val maxLength = if (lineMaxLength == null || lineMaxLength <= 0) 32766 else lineMaxLength
        logEvent.logs.forEach {
            it.message = CommonUtils.interceptStringInLength(it.message, maxLength) ?: ""
        }
    }

    private val logger = LoggerFactory.getLogger(LogMQEventDispatcher::class.java)
}