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+/**
+ * @license
+ * Copyright 2017 gRPC authors.
+ *
+ * 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.
+ *
+ */
+
+/**
+ * @module
+ * @private
+ */
+
+'use strict';
+
+var camelCase = require('lodash.camelcase');
+var client = require('./client');
+var common = require('./common');
+
+/**
+ * Get a function that deserializes a specific type of protobuf.
+ * @param {function()} cls The constructor of the message type to deserialize
+ * @param {bool=} binaryAsBase64 Deserialize bytes fields as base64 strings
+ * instead of Buffers. Defaults to false
+ * @param {bool=} longsAsStrings Deserialize long values as strings instead of
+ * objects. Defaults to true
+ * @return {function(Buffer):cls} The deserialization function
+ */
+exports.deserializeCls = function deserializeCls(cls, options) {
+ /**
+ * Deserialize a buffer to a message object
+ * @param {Buffer} arg_buf The buffer to deserialize
+ * @return {cls} The resulting object
+ */
+ return function deserialize(arg_buf) {
+ // Convert to a native object with binary fields as Buffers (first argument)
+ // and longs as strings (second argument)
+ return cls.decode(arg_buf).toRaw(options.binaryAsBase64,
+ options.longsAsStrings);
+ };
+};
+
+var deserializeCls = exports.deserializeCls;
+
+/**
+ * Get a function that serializes objects to a buffer by protobuf class.
+ * @param {function()} Cls The constructor of the message type to serialize
+ * @return {function(Cls):Buffer} The serialization function
+ */
+exports.serializeCls = function serializeCls(Cls) {
+ /**
+ * Serialize an object to a Buffer
+ * @param {Object} arg The object to serialize
+ * @return {Buffer} The serialized object
+ */
+ return function serialize(arg) {
+ return Buffer.from(new Cls(arg).encode().toBuffer());
+ };
+};
+
+var serializeCls = exports.serializeCls;
+
+/**
+ * Get the fully qualified (dotted) name of a ProtoBuf.Reflect value.
+ * @param {ProtoBuf.Reflect.Namespace} value The value to get the name of
+ * @return {string} The fully qualified name of the value
+ */
+exports.fullyQualifiedName = function fullyQualifiedName(value) {
+ if (value === null || value === undefined) {
+ return '';
+ }
+ var name = value.name;
+ var parent_name = fullyQualifiedName(value.parent);
+ if (parent_name !== '') {
+ name = parent_name + '.' + name;
+ }
+ return name;
+};
+
+var fullyQualifiedName = exports.fullyQualifiedName;
+
+/**
+ * Return a map from method names to method attributes for the service.
+ * @param {ProtoBuf.Reflect.Service} service The service to get attributes for
+ * @param {Object=} options Options to apply to these attributes
+ * @return {Object} The attributes map
+ */
+exports.getProtobufServiceAttrs = function getProtobufServiceAttrs(service,
+ options) {
+ var prefix = '/' + fullyQualifiedName(service) + '/';
+ var binaryAsBase64, longsAsStrings;
+ if (options) {
+ binaryAsBase64 = options.binaryAsBase64;
+ longsAsStrings = options.longsAsStrings;
+ }
+ /* This slightly awkward construction is used to make sure we only use
+ lodash@3.10.1-compatible functions. A previous version used
+ _.fromPairs, which would be cleaner, but was introduced in lodash
+ version 4 */
+ return common.zipObject(service.children.map(function(method) {
+ return camelCase(method.name);
+ }), service.children.map(function(method) {
+ return {
+ originalName: method.name,
+ path: prefix + method.name,
+ requestStream: method.requestStream,
+ responseStream: method.responseStream,
+ requestType: method.resolvedRequestType,
+ responseType: method.resolvedResponseType,
+ requestSerialize: serializeCls(method.resolvedRequestType.build()),
+ requestDeserialize: deserializeCls(method.resolvedRequestType.build(),
+ options),
+ responseSerialize: serializeCls(method.resolvedResponseType.build()),
+ responseDeserialize: deserializeCls(method.resolvedResponseType.build(),
+ options)
+ };
+ }));
+};
+
+var getProtobufServiceAttrs = exports.getProtobufServiceAttrs;
+
+/**
+ * Load a gRPC object from an existing ProtoBuf.Reflect object.
+ * @param {ProtoBuf.Reflect.Namespace} value The ProtoBuf object to load.
+ * @param {Object=} options Options to apply to the loaded object
+ * @return {Object<string, *>} The resulting gRPC object
+ */
+exports.loadObject = function loadObject(value, options) {
+ var result = {};
+ if (!value) {
+ return value;
+ }
+ if (value.hasOwnProperty('ns')) {
+ return loadObject(value.ns, options);
+ }
+ if (value.className === 'Namespace') {
+ Object.keys(value.children).forEach(key => {
+ const child = value.children[key];
+ result[child.name] = loadObject(child, options);
+ });
+ return result;
+ } else if (value.className === 'Service') {
+ return client.makeClientConstructor(getProtobufServiceAttrs(value, options),
+ options);
+ } else if (value.className === 'Message' || value.className === 'Enum') {
+ return value.build();
+ } else {
+ return value;
+ }
+};
+
+/**
+ * The primary purpose of this method is to distinguish between reflection
+ * objects from different versions of ProtoBuf.js. This is just a heuristic,
+ * checking for properties that are (currently) specific to this version of
+ * ProtoBuf.js
+ * @param {Object} obj The object to check
+ * @return {boolean} Whether the object appears to be a Protobuf.js 5
+ * ReflectionObject
+ */
+exports.isProbablyProtobufJs5 = function isProbablyProtobufJs5(obj) {
+ return Array.isArray(obj.children) && (typeof obj.build === 'function');
+};
git://repos.xcallymotion.com / motion2.git / blobdiff