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ConfigLoader

Kind of class:	class
Inherits from:	AbstractLib
Implements:	ILibListener
Version:	1.0
Author:	Francis Bourre
Classpath:	com.bourre.data.libs.ConfigLoader
File last modified:	Wednesday, 31 October 2007, 07:35:29

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/*
 * Copyright the original author or authors.
 * 
 * Licensed under the MOZILLA PUBLIC LICENSE, Version 1.1 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *      http://www.mozilla.org/MPL/MPL-1.1.html
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
 
/**
 * @author Francis Bourre
 * @version 1.0
 */

import com.bourre.commands.CommandManagerMS;
import com.bourre.commands.Delegate;
import com.bourre.data.libs.AbstractLib;
import com.bourre.data.libs.Config;
import com.bourre.data.libs.ConfigLoaderEvent;
import com.bourre.data.libs.ILib;
import com.bourre.data.libs.ILibListener;
import com.bourre.data.libs.IXMLToObjectDeserializer;
import com.bourre.data.libs.LibEvent;
import com.bourre.data.libs.XMLToObject;
import com.bourre.data.libs.XMLToObjectEvent;
import com.bourre.events.EventType;
import com.bourre.log.PixlibDebug;
import com.bourre.log.PixlibStringifier;

class com.bourre.data.libs.ConfigLoader 
    extends AbstractLib 
    implements ILibListener
{
    private var _oConfig : Object;
    
    public static var onLoadInitEVENT:EventType = AbstractLib.onLoadInitEVENT;
    public static var onLoadProgressEVENT:EventType = AbstractLib.onLoadProgressEVENT;
    public static var onTimeOutEVENT:EventType = AbstractLib.onTimeOutEVENT;
    
    public static var DEBUG_IS_ON : Boolean = true;
    public static var INIT_TIME_DELAY : Number = 0;
    
    public function ConfigLoader( config : Object, deserializer:IXMLToObjectDeserializer ) 
    {
        super();
        
        _oConfig = config? config : Config.getInstance();
        setContent( new XMLToObject( _oConfig, deserializer ) );
        
        setURL( "config.xml" );
    }
    
    public function setDeserializer ( deserializer:IXMLToObjectDeserializer ) : Void
    {
        XMLToObject(getContent()).setDeserializer( deserializer );
    }
    
    public function getDeserializer () : IXMLToObjectDeserializer 
    {
        return XMLToObject(getContent()).getDeserializer();
    }
    
    public function initEventSource() : Void
    {
        _e = new ConfigLoaderEvent( null, this );
    }
    
    public function prefixURL( sURL : String ) : Void
    {
        ILib( getContent() ).prefixURL( sURL );
    }
    
    public function setURL( sURL : String ) : Void
    {
        getContent().setURL( sURL );
    }
    
    public function getURL() : String
    {
        return getContent().getURL();
    }
    
    public function getConfig() : Object
    {
        return _oConfig;
    }
    
    public function load( sURL:String ) : Void
    {
        if (sURL) setURL(sURL);
        
        getContent().addListener( this );
        getContent().load( sURL );
    }
    
    /**
     * Returns the string representation of this instance.
     * @return the string representation of this instance
     */
    public function toString() : String 
    {
        return PixlibStringifier.stringify( this );
    }
    
    /*
     * ILibListener callbacks
     */
    public function onLoadInit( e:LibEvent ) : Void
    {
        PixlibDebug.INFO( "Config has been loaded" );
        
        if ( ConfigLoader.DEBUG_IS_ON ) ConfigLoader.protectConfigObject( XMLToObjectEvent(e).getObject() );
        
        if ( ConfigLoader.INIT_TIME_DELAY > 0 )
        {
            CommandManagerMS.getInstance().delay( new Delegate(this, fireEventType, ConfigLoader.onLoadInitEVENT), ConfigLoader.INIT_TIME_DELAY );
        } else
        {
            fireEventType( ConfigLoader.onLoadInitEVENT );
        }
    }
    
    public function onLoadProgress( e:LibEvent ) : Void
    {
        fireEventType( ConfigLoader.onLoadProgressEVENT );
    }

    public function onTimeOut( e:LibEvent ) : Void
    {
        if ( ConfigLoader.DEBUG_IS_ON ) ConfigLoader.protectConfigObject( XMLToObjectEvent(e).getObject() );
        fireEventType( ConfigLoader.onTimeOutEVENT );
    }
    
    /**
     * 
     */
    public static function protectConfigObject( o ) : Void
    {
        if (o == undefined) o = Config.getInstance();
        if ( !(o.hasOwnProperty("__KEY")) ) o.__KEY = null;
        
        o.__resolve = function( s : String ) : String
        {
            PixlibDebug.ERROR( s + "' property is undefined in " + PixlibStringifier.stringify(o) );
            return "";
        };
        _global.ASSetPropFlags(o, "__resolve", 7, 1);
    }
    
    public static function unprotectConfigObject( o ) : Void
    {
        if (o == undefined) o = Config.getInstance();
        _global.ASSetPropFlags(o, "__resolve", 0, 7);
        delete o.__resolve;
    }
}