Marc Mintel
5397309103
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82 lines
3.2 KiB
Plaintext
82 lines
3.2 KiB
Plaintext
/*
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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 { baggageEntryMetadataFromString, } from '@opentelemetry/api';
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import { BAGGAGE_ITEMS_SEPARATOR, BAGGAGE_PROPERTIES_SEPARATOR, BAGGAGE_KEY_PAIR_SEPARATOR, BAGGAGE_MAX_TOTAL_LENGTH, } from './constants';
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export function serializeKeyPairs(keyPairs) {
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return keyPairs.reduce((hValue, current) => {
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const value = `${hValue}${hValue !== '' ? BAGGAGE_ITEMS_SEPARATOR : ''}${current}`;
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return value.length > BAGGAGE_MAX_TOTAL_LENGTH ? hValue : value;
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}, '');
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}
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export function getKeyPairs(baggage) {
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return baggage.getAllEntries().map(([key, value]) => {
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let entry = `${encodeURIComponent(key)}=${encodeURIComponent(value.value)}`;
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// include opaque metadata if provided
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// NOTE: we intentionally don't URI-encode the metadata - that responsibility falls on the metadata implementation
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if (value.metadata !== undefined) {
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entry += BAGGAGE_PROPERTIES_SEPARATOR + value.metadata.toString();
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}
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return entry;
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});
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}
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export function parsePairKeyValue(entry) {
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if (!entry)
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return;
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const metadataSeparatorIndex = entry.indexOf(BAGGAGE_PROPERTIES_SEPARATOR);
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const keyPairPart = metadataSeparatorIndex === -1
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? entry
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: entry.substring(0, metadataSeparatorIndex);
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const separatorIndex = keyPairPart.indexOf(BAGGAGE_KEY_PAIR_SEPARATOR);
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if (separatorIndex <= 0)
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return;
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const rawKey = keyPairPart.substring(0, separatorIndex).trim();
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const rawValue = keyPairPart.substring(separatorIndex + 1).trim();
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if (!rawKey || !rawValue)
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return;
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let key;
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let value;
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try {
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key = decodeURIComponent(rawKey);
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value = decodeURIComponent(rawValue);
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}
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catch {
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return;
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}
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let metadata;
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if (metadataSeparatorIndex !== -1 &&
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metadataSeparatorIndex < entry.length - 1) {
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const metadataString = entry.substring(metadataSeparatorIndex + 1);
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metadata = baggageEntryMetadataFromString(metadataString);
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}
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return { key, value, metadata };
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}
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/**
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* Parse a string serialized in the baggage HTTP Format (without metadata):
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* https://github.com/w3c/baggage/blob/master/baggage/HTTP_HEADER_FORMAT.md
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*/
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export function parseKeyPairsIntoRecord(value) {
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const result = {};
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if (typeof value === 'string' && value.length > 0) {
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value.split(BAGGAGE_ITEMS_SEPARATOR).forEach(entry => {
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const keyPair = parsePairKeyValue(entry);
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if (keyPair !== undefined && keyPair.value.length > 0) {
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result[keyPair.key] = keyPair.value;
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}
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});
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}
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return result;
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}
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//# sourceMappingURL=utils.js.map |