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A set of tools to manage and control Oracle Coherence 21.06 processes at runtime.

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/*
 * File: GetLocalMemberId.java
 *
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
 * The contents of this file are subject to the terms and conditions of 
 * the Common Development and Distribution License 1.0 (the "License").
 *
 * You may not use this file except in compliance with the License.
 *
 * You can obtain a copy of the License by consulting the LICENSE.txt file
 * distributed with this file, or by consulting https://oss.oracle.com/licenses/CDDL
 *
 * See the License for the specific language governing permissions
 * and limitations under the License.
 *
 * When distributing the software, include this License Header Notice in each
 * file and include the License file LICENSE.txt.
 *
 * MODIFICATIONS:
 * If applicable, add the following below the License Header, with the fields
 * enclosed by brackets [] replaced by your own identifying information:
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 */

package com.oracle.bedrock.runtime.coherence.callables;

import com.oracle.bedrock.runtime.concurrent.RemoteCallable;
import com.tangosol.net.CacheFactory;

/**
 * A {@link RemoteCallable} to remotely determine the Coherence Cluster Local Member Id.
 * 
 * Copyright (c) 2021. All Rights Reserved. Oracle Corporation.

 * Oracle is a registered trademark of Oracle Corporation and/or its affiliates.
 *
 * @author Brian Oliver
 */
public class GetLocalMemberId implements RemoteCallable
{
    @Override
    public Integer call() throws Exception
    {
        // attempt to get the cluster
        com.tangosol.net.Cluster cluster = CacheFactory.getCluster();

        // when there's no cluster there's no result
        return cluster == null ? -1 : cluster.getLocalMember().getId();
    }
}