pomelo-upgrade/lib/filters/rpc/rpcLog.js

网易Pomelo升级版本

'use strict';
/**
 * Filter for rpc log.
 * Record used time for remote process call.
 */
const rpcLogger = require('pomelo-logger-upgrade').getLogger('rpc_log', __filename);
const utils = require('../../util/utils');
class Filter
{
    /**
     * Before filter for rpc
     */
    before(serverId, msg, opts, next)
    {
        opts = opts || {};
        opts.__start_time__ = Date.now();
        next();
    }

    /**
     * After filter for rpc
     */
    after(serverId, msg, opts, next)
    {
        if (opts && opts.__start_time__)
        {
            const start = opts.__start_time__;
            const end = Date.now();
            const timeUsed = end - start;
            const log = {
                route    : msg.service,
                args     : msg.args,
                time     : utils.format(new Date(start)),
                timeUsed : timeUsed
            };
            rpcLogger.info(JSON.stringify(log));
        }
        next();
    }
}

module.exports = function()
{
    return new Filter();
};
Filter.prototype.name = 'rpcLog';