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/**
* ===========================================
* LibLayout : a free Java layouting library
* ===========================================
*
* Project Info: http://reporting.pentaho.org/liblayout/
*
* (C) Copyright 2006-2007, by Pentaho Corporation and Contributors.
*
* 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, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
* Boston, MA 02111-1307, USA.
*
* [Java is a trademark or registered trademark of Sun Microsystems, Inc.
* in the United States and other countries.]
*
* ------------
* $Id: AbstractCompoundValueReadHandler.java 3524 2007-10-16 11:26:31Z tmorgner $
* ------------
* (C) Copyright 2006-2007, by Pentaho Corporation.
*/
package org.jfree.layouting.input.style.parser.stylehandler;
import java.util.HashMap;
import java.util.Map;
import org.jfree.layouting.input.style.StyleKey;
import org.jfree.layouting.input.style.parser.CSSCompoundValueReadHandler;
import org.jfree.layouting.input.style.parser.CSSValueReadHandler;
import org.jfree.layouting.input.style.values.CSSValue;
import org.w3c.css.sac.LexicalUnit;
/**
* Creation-Date: 03.12.2005, 19:10:30
*
* @author Thomas Morgner
*/
public class AbstractCompoundValueReadHandler
implements CSSCompoundValueReadHandler
{
private HashMap handlers;
public AbstractCompoundValueReadHandler()
{
this.handlers = new HashMap();
}
protected synchronized void addHandler (final StyleKey key, final CSSValueReadHandler handler)
{
this.handlers.put(key, handler);
}
public synchronized StyleKey[] getAffectedKeys()
{
return (StyleKey[])
handlers.keySet().toArray(new StyleKey[handlers.size()]);
}
/**
* Parses the LexicalUnit and returns a map of (StyleKey, CSSValue) pairs.
*
* @param unit
* @return
*/
public synchronized Map createValues(LexicalUnit unit)
{
final Map map = new HashMap();
final Map.Entry[] entries = (Map.Entry[])
handlers.entrySet().toArray(new Map.Entry[handlers.size()]);
while (unit != null)
{
for (int i = 0; i < entries.length; i++)
{
final Map.Entry entry = entries[i];
final CSSValueReadHandler valueReadHandler = (CSSValueReadHandler) entry.getValue();
final StyleKey key = (StyleKey) entry.getKey();
final CSSValue value = valueReadHandler.createValue(key, unit);
if (value != null)
{
map.put(key, value);
break;
}
}
unit = unit.getNextLexicalUnit();
}
return map;
}
}
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