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29c92211f2
CircularJSON is now deprecated, so replace it with its successor and use it in the sole location where we used CircularJSON, ie in the LoggingEvent serialization/deserialization functions * npm - install flatted, remove circular-json * LoggingEvent - use flatted for serialization/deserialization * tests - acknowledge that flatted (and circular-json) should not parse anything other than their respective serialized payloads and use flatted when parsing/stringifying test data
73 lines
2.0 KiB
JavaScript
73 lines
2.0 KiB
JavaScript
const flatted = require('flatted');
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const levels = require('./levels');
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/**
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* @name LoggingEvent
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* @namespace Log4js
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*/
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class LoggingEvent {
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/**
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* Models a logging event.
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* @constructor
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* @param {String} categoryName name of category
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* @param {Log4js.Level} level level of message
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* @param {Array} data objects to log
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* @author Seth Chisamore
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*/
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constructor(categoryName, level, data, context) {
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this.startTime = new Date();
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this.categoryName = categoryName;
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this.data = data;
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this.level = level;
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this.context = Object.assign({}, context);
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this.pid = process.pid;
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}
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serialise() {
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const logData = this.data.map((e) => {
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// JSON.stringify(new Error('test')) returns {}, which is not really useful for us.
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// The following allows us to serialize errors correctly.
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if (e && e.message && e.stack) {
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e = Object.assign({ message: e.message, stack: e.stack }, e);
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}
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return e;
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});
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this.data = logData;
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return flatted.stringify(this);
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}
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static deserialise(serialised) {
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let event;
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try {
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const rehydratedEvent = flatted.parse(serialised);
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rehydratedEvent.data = rehydratedEvent.data.map((e) => {
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if (e && e.message && e.stack) {
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const fakeError = new Error(e);
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Object.keys(e).forEach((key) => { fakeError[key] = e[key]; });
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e = fakeError;
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}
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return e;
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});
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event = new LoggingEvent(
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rehydratedEvent.categoryName,
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levels.getLevel(rehydratedEvent.level.levelStr),
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rehydratedEvent.data,
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rehydratedEvent.context
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);
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event.startTime = new Date(rehydratedEvent.startTime);
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event.pid = rehydratedEvent.pid;
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event.cluster = rehydratedEvent.cluster;
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} catch (e) {
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event = new LoggingEvent(
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'log4js',
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levels.ERROR,
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['Unable to parse log:', serialised, 'because: ', e]
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);
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}
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return event;
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}
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}
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module.exports = LoggingEvent;
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