/*	Copyright (c) 2004-2006, The Dojo Foundation	All Rights Reserved.	Licensed under the Academic Free License version 2.1 or above OR the	modified BSD license. For more information on Dojo licensing, see:		http://dojotoolkit.org/community/licensing.shtml*/dojo.provide("dojo.data.format.Json");dojo.require("dojo.lang.assert");dojo.data.format.Json = new function() {	// -------------------------------------------------------------------	// Public functions	// -------------------------------------------------------------------	this.loadDataProviderFromFileContents = function(/* dojo.data.provider.Base */ dataProvider, /* string */ jsonFileContents) {		dojo.lang.assertType(dataProvider, dojo.data.provider.Base);		dojo.lang.assertType(jsonFileContents, String);		var arrayOfJsonData = eval("(" + jsonFileContents + ")");		this.loadDataProviderFromArrayOfJsonData(dataProvider, arrayOfJsonData);	};		this.loadDataProviderFromArrayOfJsonData = function(/* dojo.data.provider.Base */ dataProvider, /* Array */ arrayOfJsonData) {		dojo.lang.assertType(arrayOfJsonData, [Array, "optional"]);		if (arrayOfJsonData && (arrayOfJsonData.length > 0)) {			var firstRow = arrayOfJsonData[0];			dojo.lang.assertType(firstRow, [Array, "pureobject"]);			if (dojo.lang.isArray(firstRow)) {				_loadDataProviderFromArrayOfArrays(dataProvider, arrayOfJsonData);			} else {				dojo.lang.assertType(firstRow, "pureobject");				_loadDataProviderFromArrayOfObjects(dataProvider, arrayOfJsonData);			}		}	};	this.getJsonStringFromResultSet = function(/* dojo.data.ResultSet */ resultSet) {		dojo.unimplemented('dojo.data.format.Json.getJsonStringFromResultSet');		var jsonString = null;		return jsonString; // String	};	// -------------------------------------------------------------------	// Private functions	// -------------------------------------------------------------------	function _loadDataProviderFromArrayOfArrays(/* dojo.data.provider.Base */ dataProvider, /* Array */ arrayOfJsonData) {		/** 		 * Example: 		 * var arrayOfJsonStates = [		 * 	 [ "abbr",  "population",  "name" ]		 * 	 [  "WA",     5894121,      "Washington"    ],		 * 	 [  "WV",     1808344,      "West Virginia" ],		 * 	 [  "WI",     5453896,      "Wisconsin"     ],		 *   [  "WY",      493782,      "Wyoming"       ] ];		 * this._loadFromArrayOfArrays(arrayOfJsonStates);		 */		var arrayOfKeys = arrayOfJsonData[0];		for (var i = 1; i < arrayOfJsonData.length; ++i) {			var row = arrayOfJsonData[i];			var item = dataProvider.getNewItemToLoad();			for (var j in row) {				var value = row[j];				var key = arrayOfKeys[j];				item.load(key, value);			}		}	}	function _loadDataProviderFromArrayOfObjects(/* dojo.data.provider.Base */ dataProvider, /* Array */ arrayOfJsonData) {		/** 		 * Example: 		 * var arrayOfJsonStates = [		 * 	 { abbr: "WA", name: "Washington" },		 * 	 { abbr: "WV", name: "West Virginia" },		 * 	 { abbr: "WI", name: "Wisconsin", song: "On, Wisconsin!" },		 * 	 { abbr: "WY", name: "Wyoming", cities: ["Lander", "Cheyenne", "Laramie"] } ];		 * this._loadFromArrayOfArrays(arrayOfJsonStates);		 */		// dojo.debug("_loadDataProviderFromArrayOfObjects");		for (var i in arrayOfJsonData) {			var row = arrayOfJsonData[i];			var item = dataProvider.getNewItemToLoad();			for (var key in row) {				var value = row[key];				if (dojo.lang.isArray(value)) {					var arrayOfValues = value;					for (var j in arrayOfValues) {						value = arrayOfValues[j];						item.load(key, value);						// dojo.debug("loaded: " + key + " = " + value); 					}				} else {					item.load(key, value);				}			}		}	}	}();