atatus-nodejs/lib/instrumentation/modules/amqplib/utils.js

Atatus APM agent for Node.js

/**
 * Returns Object includes of host and port of connection.
 *
 * @param {string} connArgs the connectionArugment which will be parsed.
 * @returns {{host:string,port:number}}
 */
function parseConnectionArgs(connArgs) {
    const params = {}
    function isString(obj) {
        return typeof obj === 'string' || obj instanceof String
    }
    if (isString(connArgs)) {
        connArgs = new URL(connArgs)
        params.host = connArgs.hostname
        if (connArgs.port) {
            params.port = parseInt(connArgs.port, 10)
        }
    } else {
        params.port = connArgs.port || (connArgs.protocol === 'amqp' ? 5672 : 5671)
        params.host = connArgs.hostname
    }

    return params
}

/**
 * Returns true if we have to ignore messages on the given topic
 *
 * @param {string} topic the topic where client is publishing/consuming
 * @param {{ ignoreMessageQueuesRegExp: RegExp[] }} config the agent's configuration object
 * @returns {boolean}
 */
function shouldIgnoreTopic(topic, config) {
    if (config.ignoreMessageQueuesRegExp) {
        for (const rule of config.ignoreMessageQueuesRegExp) {
            if (rule.test(topic)) {
                return true;
            }
        }
    }
}

module.exports = {
    parseConnectionArgs,
    shouldIgnoreTopic
}