/*
Wotonomy: OpenStep design patterns for pure Java applications.
Copyright (C) 2001 Michael Powers

This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.

This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public
License along with this library; if not, see http://www.gnu.org
*/
package net.wotonomy.control;

import net.wotonomy.foundation.NSArray;
import net.wotonomy.foundation.NSDictionary;
import net.wotonomy.foundation.NSMutableDictionary;
import net.wotonomy.foundation.NSSelector;

/**
* @author ezamudio@nasoft.com
* @author $Author: cgruber $
* @version $Revision: 894 $
*/
public class EOKeyValueArchiver {

	//for the delegate
	public static final NSSelector sel = new NSSelector("referenceToEncodeForObject",
		new Class[]{ Object.class });
	NSMutableDictionary dict = new NSMutableDictionary();
	private Object _delegate;

	public EOKeyValueArchiver() {
		super();
	}

	public void encodeBool(boolean flag, String key) {
		String v = flag ? "true" : "false";
		dict.setObjectForKey(v, key);
	}

	public void encodeInt(int value, String key) {
		dict.setObjectForKey(new Integer(value), key);
	}

	public void encodeObject(Object obj, String key) {
		if (obj == null)
			return;
		if (obj instanceof NSArray || obj instanceof NSDictionary) {
			dict.setObjectForKey(obj, key);
			return;
		}
		if (obj instanceof EOKeyValueArchiving) {
			EOKeyValueArchiver arch = new EOKeyValueArchiver();
			((EOKeyValueArchiving)obj).encodeWithKeyValueArchiver(arch);
			dict.setObjectForKey(arch.dictionary(), key);
			return;
		}
		if (obj instanceof String)
			dict.setObjectForKey(obj, key);
	}

	public void encodeReferenceToObject(Object obj, String key) {
		if (_delegate != null) {
			if (sel.implementedByObject(obj)) {
				try {
					Object ref = sel.invoke(_delegate, obj);
					if (ref != null)
						dict.setObjectForKey(ref, key);
				} catch (Exception e) {
				}
			}
		}
	}

	public NSDictionary dictionary() {
		return new NSDictionary(dict);
	}

	public void setDelegate(Object delegate) {
		_delegate = delegate;
	}
	public Object delegate() {
		return _delegate;
	}

}
/*
 * $Log$
 * Revision 1.2  2006/02/16 16:47:14  cgruber
 * Move some classes in to "internal" packages and re-work imports, etc.
 *
 * Also use UnsupportedOperationExceptions where appropriate, instead of WotonomyExceptions.
 *
 * Revision 1.1  2006/02/16 13:19:57  cgruber
 * Check in all sources in eclipse-friendly maven-enabled packages.
 *
 * Revision 1.1  2003/08/09 01:17:53  chochos
 * Part of the EOKeyValueArchiving protocol (archives objects into NSDictionaries and vice-versa)
 *
 */