/*
* Copyright (c) 2008-2017, Hazelcast, Inc. 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.
*/
package com.hazelcast.map.impl.querycache.subscriber;
import com.hazelcast.core.IMap;
import com.hazelcast.map.impl.querycache.QueryCacheContext;
import com.hazelcast.util.ConcurrencyUtil;
import com.hazelcast.util.ConstructorFunction;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.ConcurrentMap;
/**
* Static factory for simple {@link com.hazelcast.map.QueryCache QueryCache} implementations.
*/
class QueryCacheFactory {
/**
* Constructor for an instance of {@link com.hazelcast.map.QueryCache QueryCache}.
*/
private static class InternalQueryCacheConstructor implements ConstructorFunction<String, InternalQueryCache> {
private final QueryCacheRequest request;
InternalQueryCacheConstructor(QueryCacheRequest request) {
this.request = request;
}
@Override
public InternalQueryCache createNew(String ignored) {
String cacheName = request.getCacheName();
String userGivenCacheName = request.getUserGivenCacheName();
IMap delegate = request.getMap();
QueryCacheContext context = request.getContext();
return new DefaultQueryCache(cacheName, userGivenCacheName, delegate, context);
}
}
private final ConcurrentMap<String, InternalQueryCache> internalQueryCaches;
public QueryCacheFactory() {
this.internalQueryCaches = new ConcurrentHashMap<String, InternalQueryCache>();
}
public InternalQueryCache create(QueryCacheRequest request) {
return ConcurrencyUtil.getOrPutIfAbsent(internalQueryCaches,
request.getCacheName(), new InternalQueryCacheConstructor(request));
}
public InternalQueryCache getOrNull(String cacheName) {
return internalQueryCaches.get(cacheName);
}
}