/*
 * The Apache Software License, Version 1.1
 *
 *
 * Copyright (c) 2001 The Apache Software Foundation.  All rights
 * reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in
 *    the documentation and/or other materials provided with the
 *    distribution.
 *
 * 3. The end-user documentation included with the redistribution,
 *    if any, must include the following acknowledgment:
 *       "This product includes software developed by the
 *        Apache Software Foundation (http://www.apache.org/)."
 *    Alternately, this acknowledgment may appear in the software itself,
 *    if and wherever such third-party acknowledgments normally appear.
 *
 * 4. The names "Apache Cocoon" and "Apache Software Foundation" must
 *    not be used to endorse or promote products derived from this
 *    software without prior written permission. For written
 *    permission, please contact apache@apache.org.
 *
 * 5. Products derived from this software may not be called "Apache",
 *    nor may "Apache" appear in their name, without prior written
 *    permission of the Apache Software Foundation.
 *
 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED.  IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 * ====================================================================
 *
 * This software consists of voluntary contributions made by many
 * individuals on behalf of the Apache Software Foundation.  For more
 * information on the Apache Software Foundation, please see
 * <http://www.apache.org/>.
 */

package org.apache.commons.simplestore.block;

import java.beans.*;


import org.apache.avalon.framework.configuration.Configurable;
import org.apache.avalon.framework.configuration.Configuration;
import org.apache.avalon.framework.configuration.ConfigurationException;
import org.apache.avalon.framework.logger.AbstractLogEnabled;
import org.apache.avalon.phoenix.Block;



/**
 * Phoenix Block implementation of the PersistenceFactory service.
 *
 * @author <a href="mailto:baliuka@mwm.lt">Juozas Baliuka</a>
 */
public abstract class AbstractConfigurable  extends AbstractLogEnabled
                         implements Block, Configurable {
    
   
   
                             
    public void dispose() {
        
    }
    
    public void configure( Configuration configuration )
     throws ConfigurationException {
       try{ 
        Configuration [] properties = configuration.getChildren();
        java.util.Map map = new java.util.HashMap();
        
        for(int i=0; i < properties.length; i++ ){
            map.put(properties[i].getName(), properties[i].getValue());
        }
        
        BeanInfo info = Introspector.getBeanInfo(this.getClass());
        PropertyDescriptor[] descriptors = info.getPropertyDescriptors();
        
        for( int i = 0; i < descriptors.length; i++ ){
            String value = (String)map.get( descriptors[i].getName() );
            if( value != null ){
                descriptors[i].getWriteMethod().invoke(this,new Object[]{
                    
                    parse( descriptors[i].getPropertyType(),value )
                    
                });
            }
           System.out.println(descriptors[i].getName() + "= " + value); 
        }
       }catch(Exception e){
        e.printStackTrace();
        throw new ConfigurationException(e.getMessage());
       }
        
    }
    
    
    public static Character valueOf(String str){
        return new Character(str.charAt(0));
    }
    public static Class classValue(String str)throws ClassNotFoundException{
        return Class.forName( str,  true, 
                  AbstractConfigurable.class.getClassLoader()
               );
    }
    
    public static Object parse(Class type,String data){
        try{
            java.lang.reflect.Method valueOf = (java.lang.reflect.Method)parsers.get(type);
            if(valueOf == null)
                throw new IllegalArgumentException("Unsuppoted attribute type " + type.getName());
            
            return valueOf.invoke(null,new Object[]{data});
            
        }catch(Exception e){
            e.printStackTrace();
            throw new IllegalArgumentException(e.getMessage());
        }
        
    }
    
    
    static Class[] strParam = new Class[]{String.class};
    static java.util.Map parsers = new java.util.HashMap();
    static{
        try{
            
            parsers.put( Float.TYPE, Float.class.getMethod("valueOf", strParam) );
            parsers.put( Double.TYPE, Double.class.getMethod("valueOf", strParam) );
            parsers.put( Byte.TYPE, Byte.class.getMethod("valueOf", strParam) );
            parsers.put( Boolean.TYPE, Boolean.class.getMethod("valueOf", strParam) );
            parsers.put( Integer.TYPE, Integer.class.getMethod("valueOf", strParam) );
            parsers.put( Long.TYPE, Long.class.getMethod("valueOf", strParam) );
            parsers.put( Character.TYPE , AbstractConfigurable.class.getMethod("valueOf",strParam) );
            parsers.put( Float.class, Float.class.getMethod("valueOf", strParam) );
            parsers.put( Double.class, Double.class.getMethod("valueOf", strParam) );
            parsers.put( Byte.class, Byte.class.getMethod("valueOf", strParam) );
            parsers.put( Boolean.class, Boolean.class.getMethod("valueOf", strParam) );
            parsers.put( Integer.class, Integer.class.getMethod("valueOf", strParam) );
            parsers.put( Long.class, Long.class.getMethod("valueOf", strParam) );
            parsers.put( Character.class, AbstractConfigurable.class.getMethod("valueOf", strParam) );
            parsers.put( String.class, String.class.getMethod("valueOf", new Class[]{Object.class}) );
            parsers.put( Class.class, AbstractConfigurable.class.getMethod("classValue", strParam) ); 
            
            
        }catch(Exception e){
            
            throw new Error(e.getClass().getName() +":"+ e.getMessage());
            
        }
        
    }
    
    
}