com.vmware.photon.controller.common.thrift.StaticServerSet.java Source code

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Here is the source code for com.vmware.photon.controller.common.thrift.StaticServerSet.java

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/*
 * Copyright 2015 VMware, 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.vmware.photon.controller.common.thrift;

import com.google.common.collect.ImmutableSet;
import com.google.inject.Inject;
import com.google.inject.assistedinject.Assisted;

import java.io.IOException;
import java.net.InetSocketAddress;
import java.util.Collections;
import java.util.HashSet;
import java.util.Set;

/**
 * Server set that gets statically initialized with a list of server addresses when created.
 */
public class StaticServerSet implements ServerSet {

    private final Set<ChangeListener> listeners;
    private final Set<InetSocketAddress> servers;

    @Inject
    public StaticServerSet(@Assisted InetSocketAddress... servers) {
        this.listeners = Collections.synchronizedSet(new HashSet<ChangeListener>());
        this.servers = ImmutableSet.copyOf(servers);
    }

    @Override
    public void addChangeListener(ChangeListener listener) {
        listeners.add(listener);
        for (InetSocketAddress server : servers) {
            listener.onServerAdded(server);
        }
    }

    @Override
    public void removeChangeListener(ChangeListener listener) {
        listeners.remove(listener);
    }

    @Override
    public void close() throws IOException {
        // no-op
    }

    @Override
    public Set<InetSocketAddress> getServers() {
        return this.servers;
    }
}