/*!
* This program is free software; you can redistribute it and/or modify it under the
* terms of the GNU Lesser General Public License, version 2.1 as published by the Free Software
* Foundation.
*
* You should have received a copy of the GNU Lesser General Public License along with this
* program; if not, you can obtain a copy at http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html
* or from the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
* This program 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.
*
* Copyright (c) 2002-2013 Pentaho Corporation.. All rights reserved.
*/
package org.pentaho.reporting.libraries.css.parser.stylehandler;
import java.util.HashMap;
import java.util.Map;
import org.pentaho.reporting.libraries.css.model.StyleKey;
import org.pentaho.reporting.libraries.css.parser.CSSCompoundValueReadHandler;
import org.pentaho.reporting.libraries.css.parser.CSSValueReadHandler;
import org.pentaho.reporting.libraries.css.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(StyleKey key, 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++)
{
Map.Entry entry = entries[i];
CSSValueReadHandler valueReadHandler = (CSSValueReadHandler) entry.getValue();
StyleKey key = (StyleKey) entry.getKey();
CSSValue value = valueReadHandler.createValue(key, unit);
if (value != null)
{
map.put(key, value);
break;
}
}
unit = unit.getNextLexicalUnit();
}
return map;
}
}