Struts example source code file (Storage.as)

This example Struts source code file (Storage.as) 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

array, array, failed, pending, pending, storage, storage, success, success

The Struts Storage.as 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
*/

import DojoExternalInterface;

class Storage {
	public static var SUCCESS = "success";
	public static var FAILED = "failed";
	public static var PENDING = "pending";
	
	public var so;
	
	public function Storage(){
		//getURL("javascript:dojo.debug('FLASH:Storage constructor')");
		DojoExternalInterface.initialize();
		DojoExternalInterface.addCallback("put", this, put);
		DojoExternalInterface.addCallback("get", this, get);
		DojoExternalInterface.addCallback("showSettings", this, showSettings);
		DojoExternalInterface.addCallback("clear", this, clear);
		DojoExternalInterface.addCallback("getKeys", this, getKeys);
		DojoExternalInterface.addCallback("remove", this, remove);
		DojoExternalInterface.loaded();
		
		// preload the System Settings finished button movie for offline
		// access so it is in the cache
		_root.createEmptyMovieClip("_settingsBackground", 1);
		// getURL("javascript:alert('"+DojoExternalInterface.dojoPath+"');");
		_root._settingsBackground.loadMovie(DojoExternalInterface.dojoPath + "storage_dialog.swf");
	}

	public function put(keyName, keyValue, namespace){
		// Get the SharedObject for these values and save it
		so = SharedObject.getLocal(namespace);
		
		// prepare a storage status handler
		var self = this;
		so.onStatus = function(infoObject:Object){
			//getURL("javascript:dojo.debug('FLASH: onStatus, infoObject="+infoObject.code+"')");
			
			// delete the data value if the request was denied
			if (infoObject.code == "SharedObject.Flush.Failed"){
				delete self.so.data[keyName];
			}
			
			var statusResults;
			if(infoObject.code == "SharedObject.Flush.Failed"){
				statusResults = Storage.FAILED;
			}else if(infoObject.code == "SharedObject.Flush.Pending"){
				statusResults = Storage.PENDING;
			}else if(infoObject.code == "SharedObject.Flush.Success"){
				statusResults = Storage.SUCCESS;
			}
			//getURL("javascript:dojo.debug('FLASH: onStatus, statusResults="+statusResults+"')");
			
			// give the status results to JavaScript
			DojoExternalInterface.call("dojo.storage._onStatus", null, statusResults, 
																 keyName);
		}
		
		// save the key and value
		so.data[keyName] = keyValue;
		var flushResults = so.flush();
		
		// return results of this command to JavaScript
		var statusResults;
		if(flushResults == true){
			statusResults = Storage.SUCCESS;
		}else if(flushResults == "pending"){
			statusResults = Storage.PENDING;
		}else{
			statusResults = Storage.FAILED;
		}
		
		DojoExternalInterface.call("dojo.storage._onStatus", null, statusResults, 
															 keyName);
	}

	public function get(keyName, namespace){
		// Get the SharedObject for these values and save it
		so = SharedObject.getLocal(namespace);
		var results = so.data[keyName];
		
		return results;
	}
	
	public function showSettings(){
		// Show the configuration options for the Flash player, opened to the
		// section for local storage controls (pane 1)
		System.showSettings(1);
		
		// there is no way we can intercept when the Close button is pressed, allowing us
		// to hide the Flash dialog. Instead, we need to load a movie in the
		// background that we can show a close button on.
		_root.createEmptyMovieClip("_settingsBackground", 1);
		_root._settingsBackground.loadMovie(DojoExternalInterface.dojoPath + "storage_dialog.swf");
	}
	
	public function clear(namespace){
		so = SharedObject.getLocal(namespace);
		so.clear();
		so.flush();
	}
	
	public function getKeys(namespace){
		// Returns a list of the available keys in this namespace
		
		// get the storage object
		so = SharedObject.getLocal(namespace);
		
		// get all of the keys
		var results = new Array();
		for(var i in so.data)
			results.push(i);	
		
		// join the keys together in a comma seperated string
		results = results.join(",");
		
		return results;
	}
	
	public function remove(keyName, namespace){
		// Removes a key

		// get the storage object
		so = SharedObject.getLocal(namespace);
		
		// delete this value
		delete so.data[keyName];
		
		// save the changes
		so.flush();
	}

	static function main(mc){
		//getURL("javascript:dojo.debug('FLASH: storage loaded')");
		_root.app = new Storage(); 
	}
}