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Network libraries

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/**
 * Copyright 2019 The JoyQueue 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 org.joyqueue.network.command;

import org.joyqueue.domain.Subscription;
import org.joyqueue.network.transport.command.JoyQueuePayload;
import com.google.common.base.Objects;
import com.google.common.base.Preconditions;

import java.util.List;

/**
 * @author wylixiaobin
 * Date: 2018/10/10
 */
public class UnSubscribe extends JoyQueuePayload {
    //订阅关系
    private List subscriptions;

    @Override
    public int type() {
        return JoyQueueCommandType.MQTT_UNSUBSCRIBE.getCode();
    }

    public List getSubscriptions() {
        return subscriptions;
    }

    public UnSubscribe subscriptions(List subscriptions) {
        this.subscriptions = subscriptions;
        return this;
    }

    @Override
    public void validate() {
        super.validate();
        Preconditions.checkArgument(subscriptions != null, "subscription can not be null.");
    }

    @Override
    public boolean equals(Object o) {
        if (this == o) return true;
        if (o == null || getClass() != o.getClass()) return false;
        UnSubscribe that = (UnSubscribe) o;
        return Objects.equal(subscriptions, that.subscriptions);
    }

    @Override
    public int hashCode() {
        return Objects.hashCode(subscriptions);
    }

    @Override
    public String toString() {
        return "UnSubscribe{" +
                "subscriptions=" + subscriptions +
                '}';
    }
}