/* Copyright (C) 2006 Christian Schneider
*
* This file is part of Nomad.
*
* Nomad is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* Nomad 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with Nomad; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
package net.sf.nmedit.jpatch.util;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collection;
import java.util.Collections;
import java.util.Comparator;
import java.util.List;
public class ObjectFilterResult
{
public static <T> List<T> filter(Collection<T> src, ObjectFilter<T> filter)
{
if (src.isEmpty())
return Collections.<T>emptyList();
List<T> list = new ArrayList<T>(src.size());
boolean empty = true;
for (T t: src)
if (filter.accepts(t))
{
empty = false;
list.add(t);
}
if (empty) return Collections.<T>emptyList();
if (filter instanceof Comparator)
{
Comparator<T> cmp = (Comparator<T>) filter;
Collections.sort(list, cmp);
}
return list;
}
public static <T> List<T> filter(T[] src, ObjectFilter<T> filter)
{
if (src.length == 0)
return Collections.<T>emptyList();
// src array will not be modified
return filter(Arrays.asList(src), filter);
}
}