/*

  * Licensed under the MIT License

  * 

  * Copyright 2011 (c) Flávio Silva, flsilva.com

  *

  * Permission is hereby granted, free of charge, to any person

  * obtaining a copy of this software and associated documentation

  * files (the "Software"), to deal in the Software without

  * restriction, including without limitation the rights to use,

  * copy, modify, merge, publish, distribute, sublicense, and/or sell

  * copies of the Software, and to permit persons to whom the

  * Software is furnished to do so, subject to the following

  * conditions:

  *

  * The above copyright notice and this permission notice shall be

  * included in all copies or substantial portions of the Software.

  *

  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,

  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES

  * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND

  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT

  * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,

  * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING

  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR

  * OTHER DEALINGS IN THE SOFTWARE.

  * 

  * http://www.opensource.org/licenses/mit-license.php

  */

 package org.vostokframework.domain.loading.states.fileloader.adapters

 {

         import org.as3coreaddendum.errors.ObjectDisposedError;

         import org.as3utils.ReflectionUtil;

         import org.vostokframework.domain.loading.states.fileloader.IDataLoader;

         import flash.errors.IllegalOperationError;

         import flash.events.Event;

         /**

          * description

          * 

          * @author Flávio Silva

          */

         public class DataLoaderBehavior implements IDataLoader

         {

                 /**

                  * @private

                   */

                 private var _disposed:Boolean;

                 private var _wrappedDataLoader:IDataLoader;

                 protected function get wrappedDataLoader():IDataLoader { return _wrappedDataLoader; }

                 /**

                  * description

                  * 

                  * @param loader

                  * @param request

                  * @param context

                  */

                 public function DataLoaderBehavior(wrappedDataLoader:IDataLoader)

                 {

                         if (ReflectionUtil.classPathEquals(this, DataLoaderBehavior))  throw new IllegalOperationError(ReflectionUtil.getClassName(this) + " is an abstract class and shouldn't be directly instantiated.");

                         if (!wrappedDataLoader) throw new ArgumentError("Argument <wrappedDataLoader> must not be null.");

                         _wrappedDataLoader = wrappedDataLoader;

                 }

                 public function addEventListener(type : String, listener : Function, useCapture : Boolean = false, priority : int = 0, useWeakReference : Boolean = false) : void

                 {

                         validateDisposal();

                         _wrappedDataLoader.addEventListener(type, listener, useCapture, priority, useWeakReference);

                 }

                 /**

                  * description

                  * 

                  * @return

                   */

                 public function cancel(): void

                 {

                         validateDisposal();

                         _wrappedDataLoader.cancel();

                 }

                 public function dispatchEvent(event: Event): Boolean

                 {

                         validateDisposal();

                         return _wrappedDataLoader.dispatchEvent(event);

                 }

                 public function dispose():void

                 {

                         if (_disposed) return;

                         doDispose();

                         _wrappedDataLoader.dispose();

                         _disposed = true;

                         _wrappedDataLoader = null;

                 }

                 public function getData(): *

                 {

                         validateDisposal();

                         return _wrappedDataLoader.getData();

                 }

                 public function hasEventListener(type : String) : Boolean

                 {

                         validateDisposal();

                         return _wrappedDataLoader.hasEventListener(type);

                 }

                 /**

                  * description

                  * 

                  * @return

                   */

                 public function load(): void

                 {

                         validateDisposal();

                         _wrappedDataLoader.load();

                 }

                 public function removeEventListener(type : String, listener : Function, useCapture : Boolean = false) : void

                 {

                         validateDisposal();

                         _wrappedDataLoader.removeEventListener(type, listener, useCapture);

                 }

                 /**

                  * description

                  */

                 public function stop(): void

                 {

                         validateDisposal();

                         _wrappedDataLoader.stop();

                 }

                 public function willTrigger(type : String) : Boolean

                 {

                         validateDisposal();

                         return _wrappedDataLoader.willTrigger(type);

                 }

                 protected function doDispose():void

                 {

                 }

                 /**

                  * @private

                  */

                 protected function validateDisposal():void

                 {

                         if (_disposed) throw new ObjectDisposedError("This object was disposed, therefore no more operations can be performed.");

                 }

         }

 }