/*
* Copyright 2016, Stuart Douglas, and individual contributors as indicated
* by the @authors tag.
*
* 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 org.fakereplace.manip.util;
import java.util.concurrent.ConcurrentMap;
import org.fakereplace.com.google.common.base.Function;
import org.fakereplace.com.google.common.collect.MapMaker;
public class MapFunction<F, K, V> implements Function<F, ConcurrentMap<K, V>> {
final boolean weakKeys;
public MapFunction(boolean weakKeys) {
this.weakKeys = weakKeys;
}
public ConcurrentMap<K, V> apply(F from) {
if (weakKeys) {
return new MapMaker().weakKeys().makeMap();
} else {
return new MapMaker().makeMap();
}
}
}