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/*
* 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.catalina.manager.util;
import java.util.Comparator;
import org.apache.catalina.Session;
/**
* Comparator which permits to compare on a session's content.
*
* @param <T> The type of the session content to be compared
*
* @deprecated Unused. Will be removed in Tomcat 10.1.x
*/
@Deprecated
public abstract class BaseSessionComparator<T> implements Comparator<Session> {
public abstract Comparable<T> getComparableObject(Session session);
/*
* (non-Javadoc)
*
* @see java.util.Comparator#compare(java.lang.Object, java.lang.Object)
*/
@SuppressWarnings("unchecked")
@Override
public final int compare(Session s1, Session s2) {
Comparable<T> c1 = getComparableObject(s1);
Comparable<T> c2 = getComparableObject(s2);
return c1 == null ? c2 == null ? 0 : -1 : c2 == null ? 1 : c1.compareTo((T) c2);
}
}
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