Struts example source code file (FlatFile.js)

This example Struts source code file (FlatFile.js) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Java - Struts tags/keywords

date, date, number, number, string, string

The Struts FlatFile.js source code

/*
	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.old.provider.FlatFile");
dojo.require("dojo.data.old.provider.Base");
dojo.require("dojo.data.old.Item");
dojo.require("dojo.data.old.Attribute");
dojo.require("dojo.data.old.ResultSet");
dojo.require("dojo.data.old.format.Json");
dojo.require("dojo.data.old.format.Csv");
dojo.require("dojo.lang.assert");
dojo.data.old.provider.FlatFile = function (keywordParameters) {
	dojo.lang.assertType(keywordParameters, "pureobject", {optional:true});
	dojo.data.old.provider.Base.call(this);
	this._arrayOfItems = [];
	this._resultSet = null;
	this._dictionaryOfAttributes = {};
	if (keywordParameters) {
		var jsonObjects = keywordParameters["jsonObjects"];
		var jsonString = keywordParameters["jsonString"];
		var fileUrl = keywordParameters["url"];
		if (jsonObjects) {
			dojo.data.old.format.Json.loadDataProviderFromArrayOfJsonData(this, jsonObjects);
		}
		if (jsonString) {
			dojo.data.old.format.Json.loadDataProviderFromFileContents(this, jsonString);
		}
		if (fileUrl) {
			var arrayOfParts = fileUrl.split(".");
			var lastPart = arrayOfParts[(arrayOfParts.length - 1)];
			var formatParser = null;
			if (lastPart == "json") {
				formatParser = dojo.data.old.format.Json;
			}
			if (lastPart == "csv") {
				formatParser = dojo.data.old.format.Csv;
			}
			if (formatParser) {
				var fileContents = dojo.hostenv.getText(fileUrl);
				formatParser.loadDataProviderFromFileContents(this, fileContents);
			} else {
				dojo.lang.assert(false, "new dojo.data.old.provider.FlatFile({url: }) was passed a file without a .csv or .json suffix");
			}
		}
	}
};
dojo.inherits(dojo.data.old.provider.FlatFile, dojo.data.old.provider.Base);
dojo.data.old.provider.FlatFile.prototype.getProviderCapabilities = function (keyword) {
	dojo.lang.assertType(keyword, String, {optional:true});
	if (!this._ourCapabilities) {
		this._ourCapabilities = {transactions:false, undo:false, login:false, versioning:false, anonymousRead:true, anonymousWrite:false, permissions:false, queries:false, strongTyping:false, datatypes:[String, Date, Number]};
	}
	if (keyword) {
		return this._ourCapabilities[keyword];
	} else {
		return this._ourCapabilities;
	}
};
dojo.data.old.provider.FlatFile.prototype.registerAttribute = function (attributeId) {
	var registeredAttribute = this.getAttribute(attributeId);
	if (!registeredAttribute) {
		var newAttribute = new dojo.data.old.Attribute(this, attributeId);
		this._dictionaryOfAttributes[attributeId] = newAttribute;
		registeredAttribute = newAttribute;
	}
	return registeredAttribute;
};
dojo.data.old.provider.FlatFile.prototype.getAttribute = function (attributeId) {
	var attribute = (this._dictionaryOfAttributes[attributeId] || null);
	return attribute;
};
dojo.data.old.provider.FlatFile.prototype.getAttributes = function () {
	var arrayOfAttributes = [];
	for (var key in this._dictionaryOfAttributes) {
		var attribute = this._dictionaryOfAttributes[key];
		arrayOfAttributes.push(attribute);
	}
	return arrayOfAttributes;
};
dojo.data.old.provider.FlatFile.prototype.fetchArray = function (query) {
	return this._arrayOfItems;
};
dojo.data.old.provider.FlatFile.prototype.fetchResultSet = function (query) {
	if (!this._resultSet) {
		this._resultSet = new dojo.data.old.ResultSet(this, this.fetchArray(query));
	}
	return this._resultSet;
};
dojo.data.old.provider.FlatFile.prototype._newItem = function () {
	var item = new dojo.data.old.Item(this);
	this._arrayOfItems.push(item);
	return item;
};
dojo.data.old.provider.FlatFile.prototype._newAttribute = function (attributeId) {
	dojo.lang.assertType(attributeId, String);
	dojo.lang.assert(this.getAttribute(attributeId) === null);
	var attribute = new dojo.data.old.Attribute(this, attributeId);
	this._dictionaryOfAttributes[attributeId] = attribute;
	return attribute;
};
dojo.data.old.provider.Base.prototype._getResultSets = function () {
	return [this._resultSet];
};