RemoteCacheManagerHolder.java
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RemoteCacheManagerHolder.java
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			/**
			* Copyright (c) 2015 YCSB contributors. 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. See accompanying
			* LICENSE file.
			*/

			package com.yahoo.ycsb.db;

			import java.util.Properties;

			import org.infinispan.client.hotrod.RemoteCacheManager;

			public class RemoteCacheManagerHolder {

			private static volatile RemoteCacheManager cacheManager = null;

			private RemoteCacheManagerHolder() {}

			public static RemoteCacheManager getInstance(Properties props){
			RemoteCacheManager result = cacheManager;
			if(result == null){
			synchronized (RemoteCacheManagerHolder.class) {
			result = cacheManager;
			if (result == null) {
			cacheManager = result = new RemoteCacheManager(props);
			}
			}
			}
			return result;
			}
			}