/*
 * Copyright (c) 2015, salesforce.com, 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 salesforce.com, 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.
 */

/* 
 * BulkTK: JavaScript library to wrap Force.com Bulk API. Extends ForceTK.
 * Dependencies:
 *  jquery - http://jquery.com/
 *  ForceTK - https://github.com/developerforce/Force.com-JavaScript-REST-Toolkit/blob/master/forcetk.js
 *  jxon - https://github.com/developerforce/Force.com-JavaScript-REST-Toolkit/blob/master/jxon.js
 *      (originally from the [Ratatosk](https://github.com/wireload/Ratatosk) 
 *      project; this version preserves case in element and attribute names)
 */

forcetk.Client.prototype.xmlHeader = "\n";

/*
 * Low level utility function to call the Bulk API.
 * @param path resource path
 * @param parseXML set to true to parse XML response
 * @param callback function to which response will be passed
 * @param [error=null] function to which jqXHR will be passed in case of error
 * @param [method="GET"] HTTP method for call
 * @param [contentType=null] Content type of payload - e.g. 'application/xml; charset=UTF-8'
 * @param [payload=null] payload for POST
 * @param [parseXML=false] set to true to parse XML response
 */
forcetk.Client.prototype.bulkAjax = function(path, parseXML, callback, error, method, contentType, payload, retry) {
    var that = this;
    var url = this.instanceUrl + path;
    
    if (this.debug) {
        console.log('bulkAjax sending: ', payload);
    }
    
    return $.ajax({
        type: method || "GET",
        async: this.asyncAjax,
        url: (this.proxyUrl !== null) ? this.proxyUrl: url,
        contentType: method == "DELETE"  ? null : contentType,
        cache: false,
        processData: false,
        data: payload,
        success: function(data, textStatus, jqXHR) {
            var respContentType = jqXHR.getResponseHeader('Content-Type');
            // Naughty Bulk API doesn't always set Content-Type!
            if (parseXML && 
                ((respContentType && respContentType.indexOf('application/xml') === 0) ||
                data.indexOf('