hazelcast-master/hazelcast/src/main/java/com/hazelcast/cp/internal/RaftEndpointImpl.java
/*
 * Copyright (c) 2008-2023, Hazelcast, Inc. 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.
 */

package com.hazelcast.cp.internal;

import com.hazelcast.cp.internal.raft.impl.RaftEndpoint;
import com.hazelcast.nio.ObjectDataInput;
import com.hazelcast.nio.ObjectDataOutput;
import com.hazelcast.nio.serialization.IdentifiedDataSerializable;

import java.io.IOException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.io.Serializable;
import java.util.UUID;

import static com.hazelcast.internal.util.UUIDSerializationUtil.readUUID;
import static com.hazelcast.internal.util.UUIDSerializationUtil.writeUUID;

/**
 * Represents an endpoint that runs the Raft consensus algorithm as a member of
 * a Raft group.
 */
public class RaftEndpointImpl implements RaftEndpoint, IdentifiedDataSerializable, Serializable {

    private static final long serialVersionUID = -5184348267183410904L;

    private UUID uuid;

    public RaftEndpointImpl() {
    }

    public RaftEndpointImpl(UUID uuid) {
        this.uuid = uuid;
    }

    @Override
    public UUID getUuid() {
        return uuid;
    }

    @Override
    public boolean equals(Object o) {
        if (this == o) {
            return true;
        }
        if (o == null || getClass() != o.getClass()) {
            return false;
        }

        RaftEndpointImpl that = (RaftEndpointImpl) o;

        return uuid.equals(that.uuid);
    }

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

    @Override
    public int getFactoryId() {
        return RaftServiceDataSerializerHook.F_ID;
    }

    @Override
    public int getClassId() {
        return RaftServiceDataSerializerHook.CP_ENDPOINT;
    }

    @Override
    public void writeData(ObjectDataOutput out) throws IOException {
        writeUUID(out, uuid);
    }

    @Override
    public void readData(ObjectDataInput in) throws IOException {
        uuid = readUUID(in);
    }

    private void writeObject(ObjectOutputStream out) throws IOException {
        out.defaultWriteObject();
        writeUUID(out, uuid);
    }

    private void readObject(ObjectInputStream in) throws IOException, ClassNotFoundException {
        in.defaultReadObject();
        uuid = readUUID(in);
    }

    @Override
    public String toString() {
        return "RaftEndpoint{" + "uuid='" + uuid + '\'' + '}';
    }
}
