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/*
*
* Copyright 2015, 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.
*
*/
/**
* This module contains functions that are common to client and server
* code. None of them should be used directly by gRPC users.
* @module
*/
'use strict';
var _ = require('lodash');
/**
* Wrap a function to pass null-like values through without calling it. If no
* function is given, just uses the identity;
* @param {?function} func The function to wrap
* @return {function} The wrapped function
*/
exports.wrapIgnoreNull = function wrapIgnoreNull(func) {
if (!func) {
return _.identity;
}
return function(arg) {
if (arg === null || arg === undefined) {
return null;
}
return func(arg);
};
};
/**
* The logger object for the gRPC module. Defaults to console.
*/
exports.logger = console;
/**
* The current logging verbosity. 0 corresponds to logging everything
*/
exports.logVerbosity = 0;
/**
* Log a message if the severity is at least as high as the current verbosity
* @param {Number} severity A value of the grpc.logVerbosity map
* @param {String} message The message to log
*/
exports.log = function log(severity, message) {
if (severity >= exports.logVerbosity) {
exports.logger.error(message);
}
};
/**
* Default options for loading proto files into gRPC
*/
exports.defaultGrpcOptions = {
convertFieldsToCamelCase: false,
binaryAsBase64: false,
longsAsStrings: true,
enumsAsStrings: true,
deprecatedArgumentOrder: false
};
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