com.apress.prospringintegration.channels.prioritychannel.TicketMessagePriorityComparator.java Source code

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Here is the source code for com.apress.prospringintegration.channels.prioritychannel.TicketMessagePriorityComparator.java

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/*
 * Copyright 2002-2011 the original author or authors.
 *
 * Licensed 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 com.apress.prospringintegration.channels.prioritychannel;

import com.apress.prospringintegration.channels.core.Ticket;
import org.springframework.integration.Message;
import org.springframework.stereotype.Component;

import java.util.Comparator;

@SuppressWarnings("unused")
@Component
public class TicketMessagePriorityComparator implements Comparator<Message<Ticket>> {

    @Override
    public int compare(Message<Ticket> message1, Message<Ticket> message2) {
        Integer priority1 = message1.getPayload().getPriority().ordinal();
        Integer priority2 = message2.getPayload().getPriority().ordinal();

        priority1 = priority1 != null ? priority1 : 0;
        priority2 = priority2 != null ? priority2 : 0;

        return priority2.compareTo(priority1);
    }
}