/*
* Copyright (C) 2009 eXo Platform SAS.
*
* This 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 software 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 software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.exoplatform.services.jcr.impl.core.itemfilters;
import java.util.ArrayList;
import java.util.StringTokenizer;
import java.util.regex.Pattern;
import javax.jcr.Item;
import javax.jcr.RepositoryException;
/**
* Created by The eXo Platform SAS.
*
* @author <a href="mailto:geaz@users.sourceforge.net">Gennady Azarenkov</a>
* @version $Id: NamePatternFilter.java 11907 2008-03-13 15:36:21Z ksm $
*/
public class NamePatternFilter implements ItemFilter
{
private ArrayList expressions;
public NamePatternFilter(String namePattern)
{
expressions = new ArrayList();
StringTokenizer parser = new StringTokenizer(namePattern, "|");
while (parser.hasMoreTokens())
{
String token = parser.nextToken();
expressions.add(token.trim());
}
}
public boolean accept(Item item) throws RepositoryException
{
String name = item.getName();
// boolean result = false;
for (int i = 0; i < expressions.size(); i++)
{
String expr = (String)expressions.get(i);
if (estimate(name, expr))
return true;
}
return false;
}
private boolean estimate(String name, String expr)
{
if (expr.indexOf("*") == -1)
return name.equals(expr);
String regexp = expr.replaceAll("\\*", ".*");
return Pattern.compile(regexp).matcher(name).matches();
}
}