io.micronaut.cache.DefaultCacheManager Maven / Gradle / Ivy
/*
* Copyright 2017-2019 original authors
*
* 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 io.micronaut.cache;
import io.micronaut.context.annotation.Primary;
import io.micronaut.context.exceptions.ConfigurationException;
import io.micronaut.core.util.CollectionUtils;
import javax.annotation.Nonnull;
import javax.inject.Inject;
import javax.inject.Singleton;
import java.util.*;
/**
* Default implementation of the {@link CacheManager} interface.
*
* @param The native cache implementation
*
* @author Graeme Rocher
* @since 1.0
*/
@Singleton
@Primary
public class DefaultCacheManager implements CacheManager {
private final Map> cacheMap;
/**
* Create default cache manager for the given caches.
*
* @param caches List of synchronous cache implementations
*/
@Inject public DefaultCacheManager(List> caches) {
if (CollectionUtils.isEmpty(caches)) {
this.cacheMap = Collections.emptyMap();
} else {
this.cacheMap = new LinkedHashMap<>(caches.size());
for (SyncCache cache : caches) {
final String cacheName = cache.getName();
if (cacheMap.containsKey(cacheName)) {
throw new ConfigurationException("Cannot registry duplicate cache [" + cache + "] with cache manager. Ensure configured cache names are unique. Cache already configured for name [" + cacheName + "]: " + cacheMap.get(cacheName));
} else {
this.cacheMap.put(cacheName, cache);
}
}
}
}
/**
* Create default cache manager for the given caches.
*
* @param caches List of synchronous cache implementations
*/
public DefaultCacheManager(SyncCache... caches) {
this(Arrays.asList(caches));
}
@Override
@Nonnull
public Set getCacheNames() {
return cacheMap.keySet();
}
@Override
@Nonnull
public SyncCache getCache(String name) {
SyncCache cache = cacheMap.get(name);
if (cache == null) {
throw new ConfigurationException("No cache configured for name: " + name);
}
return cache;
}
}