| 1 | ;
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| 2 | /*!
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| 3 | * Copyright 2021 Google LLC
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| 4 | *
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| 5 | * Licensed under the Apache License, Version 2.0 (the "License");
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| 6 | * you may not use this file except in compliance with the License.
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| 7 | * You may obtain a copy of the License at
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| 8 | *
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| 9 | * http://www.apache.org/licenses/LICENSE-2.0
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| 10 | *
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| 11 | * Unless required by applicable law or agreed to in writing, software
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| 12 | * distributed under the License is distributed on an "AS IS" BASIS,
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| 13 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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| 14 | * See the License for the specific language governing permissions and
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| 15 | * limitations under the License.
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| 16 | */
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| 17 | Object.defineProperty(exports, "__esModule", { value: true });
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| 18 | exports.calculateMessageSize = void 0;
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| 19 | /**
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| 20 | * Precisely calculates the size of a message with optional `data` and
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| 21 | * `attributes` fields. If a `data` field is present, its {@link Buffer#length}
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| 22 | * member will be used. If `attributes` are present, each attribute's
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| 23 | * key and value will be calculated for byte length.
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| 24 | *
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| 25 | * When the calculation is complete, the result will be stored in
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| 26 | * `calculatedSize`. Since this calculation is generally only done
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| 27 | * after the message has been handed off to this library, there shouldn't
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| 28 | * be an issue with it being updated after the fact.
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| 29 | *
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| 30 | * This should not be used outside of this library. Its implementation
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| 31 | * may change.
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| 32 | *
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| 33 | * @private
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| 34 | */
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| 35 | function calculateMessageSize(message) {
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| 36 | // If it's not a PubsubMessage, we'll augment it into one.
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| 37 | const msg = message;
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| 38 | if (msg.calculatedSize !== undefined) {
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| 39 | return msg.calculatedSize;
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| 40 | }
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| 41 | let size = 0;
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| 42 | if (msg.data) {
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| 43 | size += msg.data.length;
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| 44 | }
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| 45 | if (msg.attributes) {
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| 46 | const attrs = msg.attributes;
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| 47 | for (const key of Object.getOwnPropertyNames(attrs)) {
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| 48 | const val = attrs[key] || '';
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| 49 | size += Buffer.byteLength(key + val);
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| 50 | }
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| 51 | }
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| 52 | msg.calculatedSize = size;
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| 53 | return size;
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| 54 | }
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| 55 | exports.calculateMessageSize = calculateMessageSize;
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| 56 | //# sourceMappingURL=pubsub-message.js.map |
| \ | No newline at end of file |