Initial checkin of gRPC to third_party/

third_party/grpc/src/node/index.js

+/*
+ *
+ * Copyright 2015-2016, 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 path = require('path');
+
+var SSL_ROOTS_PATH = path.resolve(__dirname, '..', '..', 'etc', 'roots.pem');
+
+if (!process.env.GRPC_DEFAULT_SSL_ROOTS_FILE_PATH) {
+  process.env.GRPC_DEFAULT_SSL_ROOTS_FILE_PATH = SSL_ROOTS_PATH;
+}
+
+var _ = require('lodash');
+
+var ProtoBuf = require('protobufjs');
+
+var client = require('./src/client.js');
+
+var server = require('./src/server.js');
+
+var Metadata = require('./src/metadata.js');
+
+var grpc = require('./src/grpc_extension');
+
+/**
+ * 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.className === 'Namespace') {
+    _.each(value.children, function(child) {
+      result[child.name] = loadObject(child, options);
+    });
+    return result;
+  } else if (value.className === 'Service') {
+    return client.makeProtobufClientConstructor(value, options);
+  } else if (value.className === 'Message' || value.className === 'Enum') {
+    return value.build();
+  } else {
+    return value;
+  }
+};
+
+var loadObject = exports.loadObject;
+
+/**
+ * Load a gRPC object from a .proto file. The options object can provide the
+ * following options:
+ * - convertFieldsToCamelCase: Loads this file with that option on protobuf.js
+ *   set as specified. See
+ *   https://github.com/dcodeIO/protobuf.js/wiki/Advanced-options for details
+ * - binaryAsBase64: deserialize bytes values as base64 strings instead of
+ *   Buffers. Defaults to false
+ * - longsAsStrings: deserialize long values as strings instead of objects.
+ *   Defaults to true
+ * @param {string|{root: string, file: string}} filename The file to load
+ * @param {string=} format The file format to expect. Must be either 'proto' or
+ *     'json'. Defaults to 'proto'
+ * @param {Object=} options Options to apply to the loaded file
+ * @return {Object<string, *>} The resulting gRPC object
+ */
+exports.load = function load(filename, format, options) {
+  if (!format) {
+    format = 'proto';
+  }
+  var convertFieldsToCamelCaseOriginal = ProtoBuf.convertFieldsToCamelCase;
+  if(options && options.hasOwnProperty('convertFieldsToCamelCase')) {
+    ProtoBuf.convertFieldsToCamelCase = options.convertFieldsToCamelCase;
+  }
+  var builder;
+  try {
+    switch(format) {
+      case 'proto':
+      builder = ProtoBuf.loadProtoFile(filename);
+      break;
+      case 'json':
+      builder = ProtoBuf.loadJsonFile(filename);
+      break;
+      default:
+      throw new Error('Unrecognized format "' + format + '"');
+    }
+  } finally {
+    ProtoBuf.convertFieldsToCamelCase = convertFieldsToCamelCaseOriginal;
+  }
+  return loadObject(builder.ns, options);
+};
+
+/**
+ * @see module:src/server.Server
+ */
+exports.Server = server.Server;
+
+/**
+ * @see module:src/metadata
+ */
+exports.Metadata = Metadata;
+
+/**
+ * Status name to code number mapping
+ */
+exports.status = grpc.status;
+
+/**
+ * Propagate flag name to number mapping
+ */
+exports.propagate = grpc.propagate;
+
+/**
+ * Call error name to code number mapping
+ */
+exports.callError = grpc.callError;
+
+/**
+ * Write flag name to code number mapping
+ */
+exports.writeFlags = grpc.writeFlags;
+
+/**
+ * Credentials factories
+ */
+exports.credentials = require('./src/credentials.js');
+
+/**
+ * ServerCredentials factories
+ */
+exports.ServerCredentials = grpc.ServerCredentials;
+
+/**
+ * @see module:src/client.makeClientConstructor
+ */
+exports.makeGenericClientConstructor = client.makeClientConstructor;
+
+/**
+ * @see module:src/client.getClientChannel
+ */
+exports.getClientChannel = client.getClientChannel;
+
+/**
+ * @see module:src/client.waitForClientReady
+ */
+exports.waitForClientReady = client.waitForClientReady;