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/*
* File: IsCoherenceRunning.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
*
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*
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* file and include the License file LICENSE.txt.
*
* MODIFICATIONS:
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package com.oracle.bedrock.runtime.coherence.callables;
import com.oracle.bedrock.runtime.concurrent.RemoteCallable;
import com.tangosol.net.CacheFactory;
import com.tangosol.net.Coherence;
import com.tangosol.net.Service;
/**
* A {@link RemoteCallable} to remotely determine if a {@link Coherence} instance is running
*
* Copyright (c) 2021. All Rights Reserved. Oracle Corporation.
* Oracle is a registered trademark of Oracle Corporation and/or its affiliates.
*/
public class IsCoherenceRunning implements RemoteCallable
{
/**
* The name of the {@link Coherence} instance.
*/
private final String name;
/**
* Constructs an {@link IsCoherenceRunning} for the
* default {@link Coherence} instance.
*/
public IsCoherenceRunning()
{
this(Coherence.DEFAULT_NAME);
}
/**
* Constructs an {@link IsCoherenceRunning}
*
* @param name the optional name of the service
*/
public IsCoherenceRunning(String name)
{
this.name = name == null ? Coherence.DEFAULT_NAME : name;
}
@Override
public Boolean call() throws Exception
{
return Coherence.getInstances()
.stream()
.filter(c -> name.equals(c.getName()))
.map(Coherence::isStarted)
.findFirst()
.orElse(false);
}
}