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/*
 * Copyright (c) 2008-2024, 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.client.impl.proxy;

import com.hazelcast.client.impl.spi.ClientClusterService;
import com.hazelcast.cluster.Cluster;
import com.hazelcast.cluster.Member;
import com.hazelcast.cluster.MembershipListener;
import com.hazelcast.internal.util.Clock;

import javax.annotation.Nonnull;
import java.util.Collection;
import java.util.LinkedHashSet;
import java.util.Set;
import java.util.UUID;

/**
 * Client implementation of the {@link Cluster}.
 */
public class ClientClusterProxy
        implements Cluster {

    private final ClientClusterService clusterService;

    public ClientClusterProxy(ClientClusterService clusterService) {
        this.clusterService = clusterService;
    }

    @Override
    @Nonnull
    public UUID addMembershipListener(@Nonnull MembershipListener listener) {
        return clusterService.addMembershipListener(listener);
    }

    @Override
    public boolean removeMembershipListener(@Nonnull UUID registrationId) {
        return clusterService.removeMembershipListener(registrationId);
    }

    @Override
    @Nonnull
    public Set getMembers() {
        final Collection members = clusterService.getMemberList();
        return new LinkedHashSet<>(members);
    }

    @Override
    @Nonnull
    public Member getLocalMember() {
        throw new UnsupportedOperationException("Client has no local member!");
    }

    @Override
    public long getClusterTime() {
        return Clock.currentTimeMillis();
    }
}