/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.apache.tuscany.sca.binding.atom.aggregator;
import java.util.Arrays;
import java.util.Comparator;
import java.util.Date;
import java.util.List;
import org.apache.tuscany.sca.data.collection.Entry;
import org.apache.tuscany.sca.data.collection.Item;
import org.oasisopen.sca.annotation.Property;
/**
* Implementation of a Feed Sort service component.
*
* @version $Rev: 823050 $ $Date: 2009-10-08 07:05:32 +0100 (Thu, 08 Oct 2009) $
*/
public class SortImpl implements Sort {
@Property
public boolean newFirst = true;
@SuppressWarnings("unchecked")
public List<Entry> sort(List<Entry> entries) {
Entry[] entriesArray = new Entry[entries.size()];
entriesArray = (Entry<String,Item>[])entries.toArray(entriesArray);
Arrays.sort(entriesArray, new Comparator() {
public int compare(final Object xObj, final Object yObj) {
Entry x = (Entry) xObj;
Entry y = (Entry) yObj;
Item xItem = (Item) x.getData();
Item yItem = (Item) y.getData();
Date xDate = xItem.getDate();
Date yDate = yItem.getDate();
if (xDate == null)
return -1;
if (newFirst)
return yDate.compareTo(xDate);
else
return xDate.compareTo(yDate);
}
});
return Arrays.asList(entriesArray);
}
}