98 lines
2.5 KiB
JavaScript
98 lines
2.5 KiB
JavaScript
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/*
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Copyright 2020 Bruno Windels <bruno@windels.cloud>
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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export const LogLevel = {
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All: 1,
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Debug: 2,
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Info: 3,
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Warn: 4,
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Error: 5,
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Fatal: 6,
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Off: 7,
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}
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export function wrapLogFilterSource(logFilterDef) {
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if (typeof logFilterDef === "function") {
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return new DeferredFilterCreator(logFilterDef);
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} else if (typeof logFilterDef === "number") {
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return new SimpleFilterCreator(logFilterDef);
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}
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return null;
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}
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class LogFilter {
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constructor(parentFilter) {
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this._default = parentFilter ? parentFilter._default : null;
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this._min = parentFilter ? parentFilter._min : null;
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}
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/* methods to build the filter */
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min(logLevel) {
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this._min = logLevel;
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if (this._default === null) {
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this._default = logLevel;
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}
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return this;
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}
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default(logLevel) {
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this._default = logLevel;
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if (this._min === null) {
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this._min = logLevel;
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}
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return this;
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}
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/* methods to use the filter */
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/** determine log level for item */
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itemLevel(item) {
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if (item._error) {
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return LogLevel.Error;
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}
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return this._default;
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}
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/** determines whether an item should be persisted */
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includeItem(item, logLevel, children) {
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// neither our children or us have a loglevel high enough, bail out.
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return logLevel >= this._min || children;
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}
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}
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/**
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* Allows to determine the log level of an item after it has finished.
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* So we can set the log level on the item duration for example.
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*/
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class DeferredFilterCreator {
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constructor(fn) {
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this._fn = fn;
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}
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createFilter(item, parentFilter) {
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return this._fn(new LogFilter(parentFilter), item);
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}
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}
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class SimpleFilterCreator {
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constructor(logLevel) {
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this._logLevel = logLevel;
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}
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createFilter(item, parentFilter) {
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return new LogFilter(parentFilter).default(this._logLevel);
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}
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}
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