forked from lix-project/lix-website
156 lines
4.1 KiB
JavaScript
156 lines
4.1 KiB
JavaScript
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const configuration = require('./configuration');
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const validColours = [
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'white',
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'grey',
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'black',
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'blue',
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'cyan',
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'green',
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'magenta',
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'red',
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'yellow',
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];
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class Level {
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constructor(level, levelStr, colour) {
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this.level = level;
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this.levelStr = levelStr;
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this.colour = colour;
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}
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toString() {
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return this.levelStr;
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}
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/**
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* converts given String to corresponding Level
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* @param {(Level|string)} sArg -- String value of Level OR Log4js.Level
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* @param {Level} [defaultLevel] -- default Level, if no String representation
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* @return {Level}
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*/
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static getLevel(sArg, defaultLevel) {
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if (!sArg) {
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return defaultLevel;
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}
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if (sArg instanceof Level) {
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return sArg;
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}
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// a json-serialised level won't be an instance of Level (see issue #768)
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if (sArg instanceof Object && sArg.levelStr) {
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sArg = sArg.levelStr;
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}
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return Level[sArg.toString().toUpperCase()] || defaultLevel;
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}
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static addLevels(customLevels) {
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if (customLevels) {
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const levels = Object.keys(customLevels);
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levels.forEach((l) => {
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const levelStr = l.toUpperCase();
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Level[levelStr] = new Level(
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customLevels[l].value,
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levelStr,
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customLevels[l].colour
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);
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const existingLevelIndex = Level.levels.findIndex(
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(lvl) => lvl.levelStr === levelStr
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);
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if (existingLevelIndex > -1) {
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Level.levels[existingLevelIndex] = Level[levelStr];
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} else {
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Level.levels.push(Level[levelStr]);
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}
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});
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Level.levels.sort((a, b) => a.level - b.level);
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}
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}
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isLessThanOrEqualTo(otherLevel) {
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if (typeof otherLevel === 'string') {
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otherLevel = Level.getLevel(otherLevel);
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}
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return this.level <= otherLevel.level;
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}
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isGreaterThanOrEqualTo(otherLevel) {
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if (typeof otherLevel === 'string') {
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otherLevel = Level.getLevel(otherLevel);
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}
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return this.level >= otherLevel.level;
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}
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isEqualTo(otherLevel) {
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if (typeof otherLevel === 'string') {
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otherLevel = Level.getLevel(otherLevel);
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}
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return this.level === otherLevel.level;
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}
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}
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Level.levels = [];
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Level.addLevels({
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ALL: { value: Number.MIN_VALUE, colour: 'grey' },
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TRACE: { value: 5000, colour: 'blue' },
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DEBUG: { value: 10000, colour: 'cyan' },
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INFO: { value: 20000, colour: 'green' },
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WARN: { value: 30000, colour: 'yellow' },
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ERROR: { value: 40000, colour: 'red' },
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FATAL: { value: 50000, colour: 'magenta' },
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MARK: { value: 9007199254740992, colour: 'grey' }, // 2^53
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OFF: { value: Number.MAX_VALUE, colour: 'grey' },
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});
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configuration.addListener((config) => {
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const levelConfig = config.levels;
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if (levelConfig) {
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configuration.throwExceptionIf(
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config,
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configuration.not(configuration.anObject(levelConfig)),
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'levels must be an object'
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);
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const newLevels = Object.keys(levelConfig);
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newLevels.forEach((l) => {
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configuration.throwExceptionIf(
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config,
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configuration.not(configuration.validIdentifier(l)),
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`level name "${l}" is not a valid identifier (must start with a letter, only contain A-Z,a-z,0-9,_)`
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);
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configuration.throwExceptionIf(
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config,
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configuration.not(configuration.anObject(levelConfig[l])),
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`level "${l}" must be an object`
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);
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configuration.throwExceptionIf(
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config,
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configuration.not(levelConfig[l].value),
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`level "${l}" must have a 'value' property`
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);
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configuration.throwExceptionIf(
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config,
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configuration.not(configuration.anInteger(levelConfig[l].value)),
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`level "${l}".value must have an integer value`
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);
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configuration.throwExceptionIf(
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config,
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configuration.not(levelConfig[l].colour),
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`level "${l}" must have a 'colour' property`
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);
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configuration.throwExceptionIf(
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config,
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configuration.not(validColours.indexOf(levelConfig[l].colour) > -1),
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`level "${l}".colour must be one of ${validColours.join(', ')}`
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);
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});
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}
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});
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configuration.addListener((config) => {
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Level.addLevels(config.levels);
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});
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module.exports = Level;
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