com.oracle.bedrock.runtime.coherence.callables.GetServiceStatus Maven / Gradle / Ivy
Show all versions of coherence-21.06 Show documentation
/*
* File: GetServiceStatus.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:
* "Portions Copyright [year] [name of copyright owner]"
*/
package com.oracle.bedrock.runtime.coherence.callables;
import com.oracle.bedrock.runtime.coherence.ServiceStatus;
import com.oracle.bedrock.runtime.concurrent.RemoteCallable;
import com.tangosol.coherence.component.util.daemon.queueProcessor.service.grid.PartitionedService;
import com.tangosol.coherence.component.util.safeService.safeCacheService.SafeDistributedCacheService;
import com.tangosol.net.CacheFactory;
import com.tangosol.net.Service;
/**
* A {@link RemoteCallable} to remotely determine the status of a service.
*
* 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 GetServiceStatus implements RemoteCallable
{
/**
* The name of the service.
*/
private String serviceName;
/**
* Constructs an {@link GetServiceStatus}
*
* @param serviceName the name of the service
*/
public GetServiceStatus(String serviceName)
{
this.serviceName = serviceName;
}
@Override
public ServiceStatus call() throws Exception
{
com.tangosol.net.Cluster cluster = CacheFactory.getCluster();
Service service = cluster == null ? null : cluster.getService(serviceName);
if (service == null)
{
return null;
}
else if (service.isRunning())
{
// SafeDistributedCacheServices provide a lot more fidelity!
if (service instanceof SafeDistributedCacheService)
{
SafeDistributedCacheService distributedCacheService = (SafeDistributedCacheService) service;
PartitionedService partitionedService = (PartitionedService) distributedCacheService.getService();
// the service may be initializing and thus we might fail asking it for information
try
{
int backupStrength = (Integer) partitionedService.getBackupStrength();
switch (backupStrength)
{
case 0 :
return ServiceStatus.ORPHANED;
case 1 :
return ServiceStatus.ENDANGERED;
case 2 :
return ServiceStatus.NODE_SAFE;
case 3 :
return ServiceStatus.MACHINE_SAFE;
case 4 :
return ServiceStatus.RACK_SAFE;
case 5 :
return ServiceStatus.SITE_SAFE;
default :
return ServiceStatus.UNKNOWN;
}
}
catch (Exception e)
{
return ServiceStatus.UNKNOWN;
}
}
else
{
return ServiceStatus.RUNNING;
}
}
else
{
return ServiceStatus.STOPPED;
}
}
}