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Edit File: any.js

"use strict";
// Copyright 2021 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
Object.defineProperty(exports, "__esModule", { value: true });
exports.googleProtobufAnyFromProto3JSON = exports.googleProtobufAnyToProto3JSON = void 0;
const fromproto3json_1 = require("./fromproto3json");
const toproto3json_1 = require("./toproto3json");
// https://github.com/protocolbuffers/protobuf/blob/ba3836703b4a9e98e474aea2bac8c5b49b6d3b5c/python/google/protobuf/json_format.py#L850
const specialJSON = new Set([
    'google.protobuf.Any',
    'google.protobuf.Duration',
    'google.protobuf.FieldMask',
    'google.protobuf.ListValue',
    'google.protobuf.Struct',
    'google.protobuf.Timestamp',
    'google.protobuf.Value',
]);
function googleProtobufAnyToProto3JSON(obj) {
    // https://developers.google.com/protocol-buffers/docs/proto3#json
    // If the Any contains a value that has a special JSON mapping, it will be converted as follows:
    // {"@type": xxx, "value": yyy}.
    // Otherwise, the value will be converted into a JSON object, and the "@type" field will be inserted
    // to indicate the actual data type.
    const typeName = obj.type_url.replace(/^.*\//, '');
    let type;
    try {
        type = obj.$type.root.lookupType(typeName);
    }
    catch (err) {
        throw new Error(`googleProtobufAnyToProto3JSON: cannot find type ${typeName}: ${err}`);
    }
    const valueMessage = type.decode(obj.value);
    const valueProto3JSON = (0, toproto3json_1.toProto3JSON)(valueMessage);
    if (specialJSON.has(typeName)) {
        return {
            '@type': obj.type_url,
            value: valueProto3JSON,
        };
    }
    valueProto3JSON['@type'] = obj.type_url;
    return valueProto3JSON;
}
exports.googleProtobufAnyToProto3JSON = googleProtobufAnyToProto3JSON;
function googleProtobufAnyFromProto3JSON(root, json) {
    // Not all possible JSON values can hold Any, only real objects.
    if (json === null || typeof json !== 'object' || Array.isArray(json)) {
        throw new Error('googleProtobufAnyFromProto3JSON: must be an object to decode google.protobuf.Any');
    }
    const typeUrl = json['@type'];
    if (!typeUrl || typeof typeUrl !== 'string') {
        throw new Error('googleProtobufAnyFromProto3JSON: JSON serialization of google.protobuf.Any must contain @type field');
    }
    const typeName = typeUrl.replace(/^.*\//, '');
    let type;
    try {
        type = root.lookupType(typeName);
    }
    catch (err) {
        throw new Error(`googleProtobufAnyFromProto3JSON: cannot find type ${typeName}: ${err}`);
    }
    let value = json;
    if (specialJSON.has(typeName)) {
        if (!('value' in json)) {
            throw new Error(`googleProtobufAnyFromProto3JSON: JSON representation of google.protobuf.Any with type ${typeName} must contain the value field`);
        }
        value = json.value;
    }
    const valueMessage = (0, fromproto3json_1.fromProto3JSON)(type, value);
    if (valueMessage === null) {
        return {
            type_url: typeUrl,
            value: null,
        };
    }
    const uint8array = type.encode(valueMessage).finish();
    const buffer = Buffer.from(uint8array, 0, uint8array.byteLength);
    const base64 = buffer.toString('base64');
    return {
        type_url: typeUrl,
        value: base64,
    };
}
exports.googleProtobufAnyFromProto3JSON = googleProtobufAnyFromProto3JSON;
//# sourceMappingURL=any.js.map

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