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author | 2017-03-16 16:42:10 -0700 | |
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committer | 2017-03-17 13:13:05 -0700 | |
commit | b5b5f020a38c40e4753ead360151810479b8c664 (patch) | |
tree | f5ad705b40db4fee17d62e1fee0d61d87d657244 /src/node/src/protobuf_js_6_common.js | |
parent | 3cafec2f55f66e3df61569579c8259b2e5b5ee00 (diff) |
Upgrade Node dependency on Protobuf.js to version 6
Diffstat (limited to 'src/node/src/protobuf_js_6_common.js')
-rw-r--r-- | src/node/src/protobuf_js_6_common.js | 154 |
1 files changed, 154 insertions, 0 deletions
diff --git a/src/node/src/protobuf_js_6_common.js b/src/node/src/protobuf_js_6_common.js new file mode 100644 index 0000000000..23e56eecde --- /dev/null +++ b/src/node/src/protobuf_js_6_common.js @@ -0,0 +1,154 @@ +/* + * + * Copyright 2017, Google Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following disclaimer + * in the documentation and/or other materials provided with the + * distribution. + * * Neither the name of Google Inc. nor the names of its + * contributors may be used to endorse or promote products derived from + * this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + */ + +'use strict'; + +var _ = require('lodash'); +var client = require('./client'); + +/** + * 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) { + var conversion_options = { + defaults: true, + bytes: options.binaryAsBase64 ? String : Buffer, + longs: options.longsAsStrings ? String : null, + enums: String + }; + /** + * 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) { + return cls.decode(arg_buf).toObject(conversion_options); + }; +}; + +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 cls.encode(arg).finish(); + }; +}; + +var serializeCls = exports.serializeCls; + +/** + * Get the fully qualified (dotted) name of a ProtoBuf.Reflect value. + * @param {ProtoBuf.ReflectionObject} 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_fqn = fullyQualifiedName(value.parent); + if (parent_fqn !== '') { + name = parent_fqn + '.' + name; + } + return name; +}; + +var fullyQualifiedName = exports.fullyQualifiedName; + +/** + * Return a map from method names to method attributes for the service. + * @param {ProtoBuf.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) + '/'; + service.resolveAll(); + return _.zipObject(_.map(service.methods, function(method) { + return _.camelCase(method.name); + }), _.map(service.methods, function(method) { + return { + path: prefix + method.name, + requestStream: !!method.requestStream, + responseStream: !!method.responseStream, + requestType: method.resolvedRequestType, + responseType: method.resolvedResponseType, + requestSerialize: serializeCls(method.resolvedRequestType), + requestDeserialize: deserializeCls(method.resolvedRequestType, options), + responseSerialize: serializeCls(method.resolvedResponseType), + responseDeserialize: deserializeCls(method.resolvedResponseType, options) + }; + })); +}; + +var getProtobufServiceAttrs = exports.getProtobufServiceAttrs; + +exports.loadObject = function loadObject(value, options) { + var result = {}; + if (!value) { + return value; + } + if (value.hasOwnProperty('methods')) { + // It's a service object + var service_attrs = getProtobufServiceAttrs(value, options); + return client.makeClientConstructor(service_attrs); + } + + if (value.hasOwnProperty('nested')) { + // It's a namespace or root object + _.each(value.nested, function(nested, name) { + result[name] = loadObject(nested, options); + }); + return result; + } + + // Otherwise, it's not something we need to change + return value; +}; |