com.mattjtodd.coherence.CoherenceCache.java Source code

Introduction

Here is the source code for com.mattjtodd.coherence.CoherenceCache.java

Source

/*
 * 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.mattjtodd.coherence;

import com.tangosol.net.NamedCache;
import org.springframework.cache.Cache;
import org.springframework.cache.support.SimpleValueWrapper;

import java.util.Optional;

import static com.google.common.base.Preconditions.checkNotNull;

/**
 * Coherence {@code Cache} implementation.
 */
public class CoherenceCache implements Cache {

    private final NamedCache namedCache;

    /**
     * Backed by the supplied {@code NamedCache}.
     *
     * @param namedCache Coherence cache which is delegated to
     */
    public CoherenceCache(NamedCache namedCache) {
        this.namedCache = checkNotNull(namedCache);
    }

    @Override
    public void clear() {
        namedCache.clear();
    }

    @Override
    public String getName() {
        return namedCache.getCacheName();
    }

    @Override
    public Object getNativeCache() {
        return namedCache;
    }

    @Override
    public ValueWrapper get(Object key) {
        return Optional.ofNullable(namedCache.get(key)).map(SimpleValueWrapper::new).orElse(null);
    }

    @Override
    public void put(Object key, Object value) {
        namedCache.put(key, value);
    }

    @Override
    public ValueWrapper putIfAbsent(Object key, Object value) {
        return Optional.ofNullable(namedCache.putIfAbsent(key, value)).map(SimpleValueWrapper::new).orElse(null);
    }

    @Override
    public void evict(Object key) {
        namedCache.remove(key);
    }

    @Override
    public <T> T get(Object key, Class<T> type) {
        return Optional.ofNullable(namedCache.get(key)).map(type::cast).orElse(null);
    }
}