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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.activemq.command;

import org.apache.activemq.util.IntrospectionSupport;

/**
 * Used to represent a durable subscription.
 * 
 * @openwire:marshaller code="55"
 * 
 */
public class SubscriptionInfo implements DataStructure {

    public static final byte DATA_STRUCTURE_TYPE = CommandTypes.DURABLE_SUBSCRIPTION_INFO;

    protected ActiveMQDestination subscribedDestination;
    protected ActiveMQDestination destination;
    protected String clientId;
    protected String subscriptionName;
    protected String selector;

    public SubscriptionInfo() {}

    public SubscriptionInfo(String clientId, String subscriptionName) {
        this.clientId = clientId;
        this.subscriptionName = subscriptionName;
    }

    public byte getDataStructureType() {
        return DATA_STRUCTURE_TYPE;
    }

    /**
     * @openwire:property version=1
     */
    public String getClientId() {
        return clientId;
    }

    public void setClientId(String clientId) {
        this.clientId = clientId;
    }

    /**
     * This is the a resolved destination that the subscription is receiving
     * messages from. This will never be a pattern or a composite destination.
     * 
     * @openwire:property version=1 cache=true
     */
    public ActiveMQDestination getDestination() {
        return destination;
    }

    public void setDestination(ActiveMQDestination destination) {
        this.destination = destination;
    }

    /**
     * @openwire:property version=1
     */
    public String getSelector() {
        return selector;
    }

    public void setSelector(String selector) {
        this.selector = selector;
    }

    /**
     * @openwire:property version=1
     */
    public String getSubcriptionName() {
        return subscriptionName;
    }

    /**
     * @param subscriptionName *
     */
    public void setSubcriptionName(String subscriptionName) {
        this.subscriptionName = subscriptionName;
    }

    public String getSubscriptionName() {
        return subscriptionName;
    }

    public void setSubscriptionName(String subscriptionName) {
        this.subscriptionName = subscriptionName;
    }

    public boolean isMarshallAware() {
        return false;
    }

    @Override
    public String toString() {
        return IntrospectionSupport.toString(this);
    }

    @Override
    public int hashCode() {
        int h1 = clientId != null ? clientId.hashCode() : -1;
        int h2 = subscriptionName != null ? subscriptionName.hashCode() : -1;
        return h1 ^ h2;
    }

    @Override
    public boolean equals(Object obj) {
        boolean result = false;
        if (obj instanceof SubscriptionInfo) {
            SubscriptionInfo other = (SubscriptionInfo)obj;
            result = (clientId == null && other.clientId == null || clientId != null
                                                                    && other.clientId != null
                                                                    && clientId.equals(other.clientId))
                     && (subscriptionName == null && other.subscriptionName == null || subscriptionName != null
                                                                                       && other.subscriptionName != null
                                                                                       && subscriptionName
                                                                                           .equals(other.subscriptionName));
        }
        return result;
    }

    /**
     * The destination the client originally subscribed to.. This may not match
     * the {@see getDestination} method if the subscribed destination uses
     * patterns or composites.
     * 
     * If the subscribed destinationis not set, this just ruturns the
     * desitination.
     * 
     * @openwire:property version=3
     */
    public ActiveMQDestination getSubscribedDestination() {
        if (subscribedDestination == null) {
            return getDestination();
        }
        return subscribedDestination;
    }

    public void setSubscribedDestination(ActiveMQDestination subscribedDestination) {
        this.subscribedDestination = subscribedDestination;
    }

}