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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.qpid.server.ack;

import org.apache.qpid.AMQException;
import org.apache.qpid.framing.AMQShortString;
import org.apache.qpid.server.queue.AMQMessage;
import org.apache.qpid.server.queue.AMQQueue;
import org.apache.qpid.server.store.StoreContext;

public class UnacknowledgedMessage
{
    public final AMQMessage message;
    public final AMQShortString consumerTag;
    public final long deliveryTag;
    public AMQQueue queue;

    public UnacknowledgedMessage(AMQQueue queue, AMQMessage message, AMQShortString consumerTag, long deliveryTag)
    {
        this.queue = queue;
        this.message = message;
        this.consumerTag = consumerTag;
        this.deliveryTag = deliveryTag;
    }

    public String toString()
    {
        StringBuilder sb = new StringBuilder();
        sb.append("Q:");
        sb.append(queue);
        sb.append(" M:");
        sb.append(message);
        sb.append(" CT:");
        sb.append(consumerTag);
        sb.append(" DT:");
        sb.append(deliveryTag);

        return sb.toString();
    }

    public void discard(StoreContext storeContext) throws AMQException
    {
        if (queue != null)
        {
            message.dequeue(storeContext, queue);
        }
        //if the queue is null then the message is waiting to be acked, but has been removed.
        message.decrementReference(storeContext);
    }

    public void restoreTransientMessageData() throws AMQException
    {
        message.restoreTransientMessageData();
    }

    public void clearTransientMessageData()
    {
        message.clearTransientMessageData();
    }
}