| 1 |
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| 2 | const DebugLevel = {
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| 3 | LOG: 1,
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| 4 | DEBUG: 2,
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| 5 | WARN: 3,
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| 6 | ERROR: 4,
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| 7 | FATAL: 5,
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| 8 | NONE: 9
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| 9 | }
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| 10 |
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| 11 | class Debugger {
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| 12 |
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| 13 | set logLevel( logLevel ) {
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| 14 | this._logLevel = logLevel
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| 15 | this._debug.enabled = logLevel < DebugLevel.NONE
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| 16 | }
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| 17 |
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| 18 | constructor( namespace ) {
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| 19 |
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| 20 | this._logLevel = DebugLevel.NONE
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| 21 |
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| 22 | if (process.env.DEBUG) {
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| 23 | if (process.env.DEBUG.indexOf(`${namespace}:log`) !== -1) {
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| 24 | this._logLevel = DebugLevel.LOG
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| 25 | }
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| 26 | else if (process.env.DEBUG.indexOf(`${namespace}:debug`) !== -1) {
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| 27 | this._logLevel = DebugLevel.DEBUG
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| 28 | }
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| 29 | else if (process.env.DEBUG.indexOf(`${namespace}:warn`) !== -1) {
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| 30 | this._logLevel = DebugLevel.WARN
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| 31 | }
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| 32 | else if (process.env.DEBUG.indexOf(`${namespace}:error`) !== -1) {
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| 33 | this._logLevel = DebugLevel.ERROR
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| 34 | }
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| 35 | else if (process.env.DEBUG.indexOf(`${namespace}:fatal`) !== -1) {
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| 36 | this._logLevel = DebugLevel.FATAL
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| 37 | }
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| 38 | }
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| 39 |
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| 40 | this._debug = require("debug")(namespace)
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| 41 | this._debug.enabled = this._logLevel < DebugLevel.NONE
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| 42 |
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| 43 | this._requestCounting = 0
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| 44 | this._requestTime = {}
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| 45 | }
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| 46 |
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| 47 | log(...msg) {
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| 48 | if (this._logLevel <= DebugLevel.LOG) {
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| 49 | this._debug(...msg)
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| 50 | }
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| 51 | }
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| 52 |
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| 53 | debug(...msg) {
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| 54 | if (this._logLevel <= DebugLevel.DEBUG) {
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| 55 | this._debug(...msg)
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| 56 | }
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| 57 | }
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| 58 |
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| 59 | warn(...msg) {
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| 60 | if (this._logLevel <= DebugLevel.WARN) {
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| 61 | this._debug(...msg)
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| 62 | }
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| 63 | }
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| 64 |
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| 65 | error(...msg) {
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| 66 | if (this._logLevel <= DebugLevel.ERROR) {
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| 67 | this._debug(...msg)
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| 68 | }
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| 69 | }
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| 70 |
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| 71 | requestStart(...msg) {
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| 72 | let startTime = +new Date()
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| 73 | let requestId = 'R.' + this._requestCounting++
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| 74 |
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| 75 | this._requestTime[requestId] = startTime
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| 76 |
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| 77 | if (this._logLevel <= DebugLevel.DEBUG) {
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| 78 | this._debug("Requst", requestId)
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| 79 | }
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| 80 |
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| 81 | return requestId
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| 82 | }
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| 83 |
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| 84 | requestEnd(requestId, action, ...msg) {
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| 85 | if (this._logLevel <= DebugLevel.DEBUG) {
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| 86 | let startTime = this._requestTime[requestId]
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| 87 | let elapsed = (+new Date()) - startTime
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| 88 |
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| 89 | delete this._requestTime[requestId]
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| 90 |
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| 91 | this._debug("Response", requestId, action, elapsed + 'ms' )
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| 92 | }
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| 93 | }
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| 94 | }
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| 95 |
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| 96 | module.exports = Debugger
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