110 lines
5.3 KiB
JavaScript
110 lines
5.3 KiB
JavaScript
/*
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* Copyright The OpenTelemetry Authors
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*
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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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*
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* https://www.apache.org/licenses/LICENSE-2.0
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*
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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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import { isDescriptorCompatibleWith, } from '../InstrumentDescriptor';
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import * as api from '@opentelemetry/api';
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import { getConflictResolutionRecipe, getIncompatibilityDetails, } from '../view/RegistrationConflicts';
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/**
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* Internal class for storing {@link MetricStorage}
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*/
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export class MetricStorageRegistry {
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constructor() {
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this._sharedRegistry = new Map();
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this._perCollectorRegistry = new Map();
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}
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static create() {
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return new MetricStorageRegistry();
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}
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getStorages(collector) {
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let storages = [];
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for (const metricStorages of this._sharedRegistry.values()) {
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storages = storages.concat(metricStorages);
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}
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const perCollectorStorages = this._perCollectorRegistry.get(collector);
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if (perCollectorStorages != null) {
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for (const metricStorages of perCollectorStorages.values()) {
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storages = storages.concat(metricStorages);
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}
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}
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return storages;
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}
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register(storage) {
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this._registerStorage(storage, this._sharedRegistry);
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}
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registerForCollector(collector, storage) {
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let storageMap = this._perCollectorRegistry.get(collector);
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if (storageMap == null) {
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storageMap = new Map();
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this._perCollectorRegistry.set(collector, storageMap);
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}
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this._registerStorage(storage, storageMap);
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}
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findOrUpdateCompatibleStorage(expectedDescriptor) {
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const storages = this._sharedRegistry.get(expectedDescriptor.name);
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if (storages === undefined) {
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return null;
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}
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// If the descriptor is compatible, the type of their metric storage
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// (either SyncMetricStorage or AsyncMetricStorage) must be compatible.
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return this._findOrUpdateCompatibleStorage(expectedDescriptor, storages);
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}
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findOrUpdateCompatibleCollectorStorage(collector, expectedDescriptor) {
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const storageMap = this._perCollectorRegistry.get(collector);
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if (storageMap === undefined) {
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return null;
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}
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const storages = storageMap.get(expectedDescriptor.name);
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if (storages === undefined) {
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return null;
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}
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// If the descriptor is compatible, the type of their metric storage
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// (either SyncMetricStorage or AsyncMetricStorage) must be compatible.
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return this._findOrUpdateCompatibleStorage(expectedDescriptor, storages);
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}
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_registerStorage(storage, storageMap) {
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const descriptor = storage.getInstrumentDescriptor();
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const storages = storageMap.get(descriptor.name);
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if (storages === undefined) {
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storageMap.set(descriptor.name, [storage]);
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return;
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}
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storages.push(storage);
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}
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_findOrUpdateCompatibleStorage(expectedDescriptor, existingStorages) {
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let compatibleStorage = null;
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for (const existingStorage of existingStorages) {
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const existingDescriptor = existingStorage.getInstrumentDescriptor();
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if (isDescriptorCompatibleWith(existingDescriptor, expectedDescriptor)) {
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// Use the longer description if it does not match.
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if (existingDescriptor.description !== expectedDescriptor.description) {
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if (expectedDescriptor.description.length >
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existingDescriptor.description.length) {
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existingStorage.updateDescription(expectedDescriptor.description);
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}
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api.diag.warn('A view or instrument with the name ', expectedDescriptor.name, ' has already been registered, but has a different description and is incompatible with another registered view.\n', 'Details:\n', getIncompatibilityDetails(existingDescriptor, expectedDescriptor), 'The longer description will be used.\nTo resolve the conflict:', getConflictResolutionRecipe(existingDescriptor, expectedDescriptor));
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}
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// Storage is fully compatible. There will never be more than one pre-existing fully compatible storage.
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compatibleStorage = existingStorage;
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}
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else {
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// The implementation SHOULD warn about duplicate instrument registration
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// conflicts after applying View configuration.
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api.diag.warn('A view or instrument with the name ', expectedDescriptor.name, ' has already been registered and is incompatible with another registered view.\n', 'Details:\n', getIncompatibilityDetails(existingDescriptor, expectedDescriptor), 'To resolve the conflict:\n', getConflictResolutionRecipe(existingDescriptor, expectedDescriptor));
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}
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}
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return compatibleStorage;
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}
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}
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//# sourceMappingURL=MetricStorageRegistry.js.map
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