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// Copyright 2011 Software Freedom Conservancy. All Rights Reserved.
//
// 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.
/**
* @fileoverview Utilities for working with WebDriver response objects.
* @see: http://code.google.com/p/selenium/wiki/JsonWireProtocol#Responses
*/
goog.provide('bot.response');
goog.provide('bot.response.ResponseObject');
goog.require('bot.Error');
goog.require('bot.ErrorCode');
/**
* Type definition for a response object, as defined by the JSON wire protocol.
* @typedef {{status: bot.ErrorCode, value: (*|{message: string})}}
* @see http://code.google.com/p/selenium/wiki/JsonWireProtocol#Responses
*/
bot.response.ResponseObject;
/**
* @param {*} value The value to test.
* @return {boolean} Whether the given value is a response object.
*/
bot.response.isResponseObject = function(value) {
return goog.isObject(value) && goog.isNumber(value['status']);
};
/**
* Creates a new success response object with the provided value.
* @param {*} value The response value.
* @return {!bot.response.ResponseObject} The new response object.
*/
bot.response.createResponse = function(value) {
if (bot.response.isResponseObject(value)) {
return /** @type {!bot.response.ResponseObject} */ (value);
}
return {
'status': bot.ErrorCode.SUCCESS,
'value': value
};
};
/**
* Converts an error value into its JSON representation as defined by the
* WebDriver wire protocol.
* @param {(bot.Error|Error|*)} error The error value to convert.
* @return {!bot.response.ResponseObject} The new response object.
*/
bot.response.createErrorResponse = function(error) {
if (bot.response.isResponseObject(error)) {
return /** @type {!bot.response.ResponseObject} */ (error);
}
var statusCode = error && goog.isNumber(error.code) ? error.code :
bot.ErrorCode.UNKNOWN_ERROR;
return {
'status': /** @type {bot.ErrorCode} */ (statusCode),
'value': {
'message': (error && error.message || error) + ''
}
};
};
/**
* Checks that a response object does not specify an error as defined by the
* WebDriver wire protocol. If the response object defines an error, it will
* be thrown. Otherwise, the response will be returned as is.
* @param {!bot.response.ResponseObject} responseObj The response object to
* check.
* @return {!bot.response.ResponseObject} The checked response object.
* @throws {bot.Error} If the response describes an error.
* @see http://code.google.com/p/selenium/wiki/JsonWireProtocol#Failed_Commands
*/
bot.response.checkResponse = function(responseObj) {
var status = responseObj['status'];
if (status == bot.ErrorCode.SUCCESS) {
return responseObj;
}
// If status is not defined, assume an unknown error.
status = status || bot.ErrorCode.UNKNOWN_ERROR;
var value = responseObj['value'];
if (!value || !goog.isObject(value)) {
throw new bot.Error(status, value + '');
}
throw new bot.Error(status, value['message'] + '');
};