apminsight/lib/metrics/bgtxn.js

monitor nodejs applications

var transaction = require("./transaction");
var libUtil = require("util");
var metricstore = require("./metricstore");
var constants = require("./../constants");
var utils = require("./../util/utils");

/* eslint-disable no-unused-vars */
function BgTxn(reqInfo, req) {
    transaction.call(this, reqInfo);
    this._url = reqInfo.uri;
    this._errst = null;
}
/* eslint-enable no-unused-vars */

libUtil.inherits(BgTxn, transaction);

BgTxn.prototype.endApiTxn = function (err) {
    if (this.isTxnIgnored()) {
        return;
    }
    this.updateRtMetric();
    this.updateReqCountByErr(err);
    this.markCompleted();
    this.updateInDataStore();
};

BgTxn.prototype.getMethod = function () {
    return constants.bckgrnd;
};

BgTxn.prototype.aggregate = function (txn) {
    this._url = txn.getUrl();
    if (txn.isErrorTxn()) {
        this._errorCount += txn.getErrorCount();
        this._errorRt += txn.getRt();
    }
    this.aggregateTxnSubResources(txn);
    if (txn.getCount() > 0) {
        this.aggregateNonErrorTxn(txn);
    }
};

BgTxn.prototype.updateInDataStore = function () {
    var txnMetric = metricstore.getBgTxnmetric();
    var samplingFac = utils.getGenericThreshold().getBgTxnSamplingFactor();
    var metricLimit = utils.getGenericThreshold().getBgMetricSize();
    this.checkAndupdateInDataStore(txnMetric, BgTxn, samplingFac, metricLimit);
};

BgTxn.prototype.getFormattedRtData = function () {
    var rtData = [
        this.getRt(),
        this.getMinRt(),
        this.getMaxRt(),
        this.getCount(),
        this.getErrorCount()
    ];
    var additinalMetric = {
        components: this.getComponentDetails(),
        logmetric: this.getErrorDetails(),
        error_rt: this.getErrorRt()
    };
    return [rtData, additinalMetric];
};

BgTxn.prototype.getTraceInfo = function () {
    var traceInfo = {};
    traceInfo.t_name = constants.bgTxnPrefix + this.getUrl();
    traceInfo.s_time = this.getStartTime();
    traceInfo.r_time = this.getRt();
    traceInfo.trace_reason = 4;
    traceInfo.db_opn = [];
    traceInfo.loginfo = [];
    traceInfo.method_count = 1;
    traceInfo.dt_count = 0;
    traceInfo.custom_params = this.getCustomParamsAsStr();
    Object.assign(traceInfo, this.getTrackerCountInfo());
    traceInfo.drop_threshold = utils
        .getGenericThreshold()
        .getTxnTrackerDropThreshold();
    this.appendCompInfoInTrace(traceInfo);
    if (!utils.isEmpty(this.getError())) {
        traceInfo.err_st = this.getError().getErrorStackFrames();
    }
    return traceInfo;
};

BgTxn.prototype.getTxnType = function () {
    return "bgtxn";
};

module.exports = BgTxn;