001// --------------------------------------------------------------------------------
002// Copyright 2002-2024 Echo Three, LLC
003//
004// Licensed under the Apache License, Version 2.0 (the "License");
005// you may not use this file except in compliance with the License.
006// You may obtain a copy of the License at
007//
008//     http://www.apache.org/licenses/LICENSE-2.0
009//
010// Unless required by applicable law or agreed to in writing, software
011// distributed under the License is distributed on an "AS IS" BASIS,
012// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013// See the License for the specific language governing permissions and
014// limitations under the License.
015// --------------------------------------------------------------------------------
016
017package com.echothree.util.server.persistence.valuecache;
018
019import com.echothree.util.server.persistence.PersistenceDebugFlags;
020
021public class ValueCacheProviderImpl
022        implements ValueCacheProvider {
023
024    private ValueCacheProviderImpl() {
025        super();
026    }
027
028    private static class ValueCacheProviderHolder {
029        static ValueCacheProvider instance = new ValueCacheProviderImpl();
030    }
031
032    public static ValueCacheProvider getInstance() {
033        return ValueCacheProviderHolder.instance;
034    }
035
036    @Override
037    public ValueCache getValueCache() {
038        // TODO: Should be configurable.
039        ValueCache valueCache = new InfinispanValueCacheImpl();
040        //ValueCache valueCache = new NullValueCacheImpl();
041        
042        return PersistenceDebugFlags.LogValueCaches ? new LoggingValueCacheImpl(valueCache) : valueCache;
043    }
044
045}