ClusterDataListener.java 1.5 KB
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/*
 * Copyright 2017, OpenSkywalking Organization All rights reserved.
 *
 * 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.
 *
 * Project repository: https://github.com/OpenSkywalking/skywalking
 */

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package org.skywalking.apm.collector.core.cluster;

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import java.util.HashSet;
import java.util.Set;
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import org.skywalking.apm.collector.core.framework.Listener;

/**
 * @author pengys5
 */
public abstract class ClusterDataListener implements Listener {

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    private Set<String> addresses;
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    public ClusterDataListener() {
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        addresses = new HashSet<>();
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    }

    public abstract String path();

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    public final void addAddress(String address) {
        addresses.add(address);
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    }

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    public final void removeAddress(String address) {
        addresses.remove(address);
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    }
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    public final Set<String> getAddresses() {
        return addresses;
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    }
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    public abstract void serverJoinNotify(String serverAddress);

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    public abstract void serverQuitNotify(String serverAddress);
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}