@azure/monitor-opentelemetry-exporter
Version:
Application Insights exporter for the OpenTelemetry JavaScript (Node.js) SDK
218 lines • 9.25 kB
JavaScript
;
// Copyright (c) Microsoft Corporation.
// Licensed under the MIT License.
Object.defineProperty(exports, "__esModule", { value: true });
exports.logToEnvelope = logToEnvelope;
const index_js_1 = require("../generated/index.js");
const common_js_1 = require("./common.js");
const semantic_conventions_1 = require("@opentelemetry/semantic-conventions");
const types_js_1 = require("../types.js");
const api_1 = require("@opentelemetry/api");
const applicationinsights_js_1 = require("./constants/applicationinsights.js");
/**
* Log to Azure envelope parsing.
* @internal
*/
function logToEnvelope(log, ikey) {
const time = (0, common_js_1.hrTimeToDate)(log.hrTime);
const sampleRate = 100;
const instrumentationKey = ikey;
const tags = createTagsFromLog(log);
// eslint-disable-next-line prefer-const
let [properties, measurements] = createPropertiesFromLog(log);
let name;
let baseType;
let baseData;
const exceptionStacktrace = log.attributes[semantic_conventions_1.ATTR_EXCEPTION_STACKTRACE];
const exceptionType = log.attributes[semantic_conventions_1.ATTR_EXCEPTION_TYPE];
const isExceptionType = !!(exceptionType && exceptionStacktrace) || false;
const isMessageType = !log.attributes[applicationinsights_js_1.ApplicationInsightsBaseType] &&
!log.attributes[applicationinsights_js_1.ApplicationInsightsCustomEventName] &&
!exceptionType;
if (isExceptionType) {
const exceptionMessage = log.attributes[semantic_conventions_1.ATTR_EXCEPTION_MESSAGE];
name = applicationinsights_js_1.ApplicationInsightsExceptionName;
baseType = applicationinsights_js_1.ApplicationInsightsExceptionBaseType;
const exceptionDetails = {
typeName: String(exceptionType),
message: String(exceptionMessage),
hasFullStack: exceptionStacktrace ? true : false,
stack: String(exceptionStacktrace),
};
const exceptionData = {
exceptions: [exceptionDetails],
severityLevel: String(getSeverity(log.severityNumber)),
version: 2,
};
baseData = exceptionData;
}
else if (log.attributes[applicationinsights_js_1.ApplicationInsightsCustomEventName]) {
name = applicationinsights_js_1.ApplicationInsightsEventName;
baseType = applicationinsights_js_1.ApplicationInsightsEventBaseType;
const eventData = {
name: String(log.attributes[applicationinsights_js_1.ApplicationInsightsCustomEventName]),
version: 2,
};
baseData = eventData;
measurements = getLegacyApplicationInsightsMeasurements(log);
}
else if (isMessageType) {
name = applicationinsights_js_1.ApplicationInsightsMessageName;
baseType = applicationinsights_js_1.ApplicationInsightsMessageBaseType;
const messageData = {
message: String(log.body),
severityLevel: String(getSeverity(log.severityNumber)),
version: 2,
};
baseData = messageData;
}
else {
// If Legacy Application Insights Log
baseType = String(log.attributes[applicationinsights_js_1.ApplicationInsightsBaseType]);
name = getLegacyApplicationInsightsName(log);
baseData = getLegacyApplicationInsightsBaseData(log);
measurements = getLegacyApplicationInsightsMeasurements(log);
if (!baseData) {
// Failed to parse log
return;
}
}
// Truncate properties
if (baseData.message) {
baseData.message = String(baseData.message).substring(0, types_js_1.MaxPropertyLengths.FIFTEEN_BIT);
}
if (properties) {
for (const key of Object.keys(properties)) {
properties[key] = String(properties[key]).substring(0, types_js_1.MaxPropertyLengths.THIRTEEN_BIT);
}
}
return {
name,
sampleRate,
time,
instrumentationKey,
tags,
version: 1,
data: {
baseType,
baseData: Object.assign(Object.assign({}, baseData), { properties,
measurements }),
},
};
}
function createTagsFromLog(log) {
var _a, _b;
const tags = (0, common_js_1.createTagsFromResource)(log.resource);
if ((_a = log.spanContext) === null || _a === void 0 ? void 0 : _a.traceId) {
tags[index_js_1.KnownContextTagKeys.AiOperationId] = log.spanContext.traceId;
}
if ((_b = log.spanContext) === null || _b === void 0 ? void 0 : _b.spanId) {
tags[index_js_1.KnownContextTagKeys.AiOperationParentId] = log.spanContext.spanId;
}
if (log.attributes[index_js_1.KnownContextTagKeys.AiOperationName]) {
tags[index_js_1.KnownContextTagKeys.AiOperationName] = log.attributes[index_js_1.KnownContextTagKeys.AiOperationName];
}
return tags;
}
function createPropertiesFromLog(log) {
const measurements = {};
const properties = {};
if (log.attributes) {
for (const key of Object.keys(log.attributes)) {
// Avoid duplication ignoring fields already mapped.
if (!(key.startsWith("_MS.") ||
key.startsWith("microsoft") ||
key === semantic_conventions_1.ATTR_EXCEPTION_TYPE ||
key === semantic_conventions_1.ATTR_EXCEPTION_MESSAGE ||
key === semantic_conventions_1.ATTR_EXCEPTION_STACKTRACE ||
key === index_js_1.KnownContextTagKeys.AiOperationName)) {
properties[key] = (0, common_js_1.serializeAttribute)(log.attributes[key]);
}
}
}
return [properties, measurements];
}
// https://github.com/open-telemetry/opentelemetry-specification/blob/main/specification/logs/data-model.md#field-severitynumber
function getSeverity(severityNumber) {
if (severityNumber) {
if (severityNumber > 0 && severityNumber < 9) {
return index_js_1.KnownSeverityLevel.Verbose;
}
else if (severityNumber >= 9 && severityNumber < 13) {
return index_js_1.KnownSeverityLevel.Information;
}
else if (severityNumber >= 13 && severityNumber < 17) {
return index_js_1.KnownSeverityLevel.Warning;
}
else if (severityNumber >= 17 && severityNumber < 21) {
return index_js_1.KnownSeverityLevel.Error;
}
else if (severityNumber >= 21 && severityNumber < 25) {
return index_js_1.KnownSeverityLevel.Critical;
}
}
return;
}
function getLegacyApplicationInsightsName(log) {
let name = "";
switch (log.attributes[applicationinsights_js_1.ApplicationInsightsBaseType]) {
case applicationinsights_js_1.ApplicationInsightsAvailabilityBaseType:
name = applicationinsights_js_1.ApplicationInsightsAvailabilityName;
break;
case applicationinsights_js_1.ApplicationInsightsExceptionBaseType:
name = applicationinsights_js_1.ApplicationInsightsExceptionName;
break;
case applicationinsights_js_1.ApplicationInsightsMessageBaseType:
name = applicationinsights_js_1.ApplicationInsightsMessageName;
break;
case applicationinsights_js_1.ApplicationInsightsPageViewBaseType:
name = applicationinsights_js_1.ApplicationInsightsPageViewName;
break;
case applicationinsights_js_1.ApplicationInsightsEventBaseType:
name = applicationinsights_js_1.ApplicationInsightsEventName;
break;
}
return name;
}
function getLegacyApplicationInsightsMeasurements(log) {
var _a;
let measurements = {};
if ((_a = log.body) === null || _a === void 0 ? void 0 : _a.measurements) {
measurements = Object.assign({}, log.body.measurements);
}
return measurements;
}
function getLegacyApplicationInsightsBaseData(log) {
let baseData = {
version: 2,
};
if (log.body) {
try {
switch (log.attributes[applicationinsights_js_1.ApplicationInsightsBaseType]) {
case applicationinsights_js_1.ApplicationInsightsAvailabilityBaseType:
baseData = log.body;
break;
case applicationinsights_js_1.ApplicationInsightsExceptionBaseType:
baseData = log.body;
break;
case applicationinsights_js_1.ApplicationInsightsMessageBaseType:
baseData = log.body;
break;
case applicationinsights_js_1.ApplicationInsightsPageViewBaseType:
baseData = log.body;
break;
case applicationinsights_js_1.ApplicationInsightsEventBaseType:
baseData = log.body;
break;
}
if (typeof (baseData === null || baseData === void 0 ? void 0 : baseData.message) === "object") {
baseData.message = JSON.stringify(baseData.message);
}
}
catch (err) {
api_1.diag.error("AzureMonitorLogExporter failed to parse Application Insights Telemetry");
}
}
return baseData;
}
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