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package cgeo.geocaching;
import cgeo.geocaching.cgData.StorageLocation;
import cgeo.geocaching.utils.LeastRecentlyUsedCache;
/**
* Cache for Caches. Every cache is stored in memory while c:geo is active to
* speed up the app and to minimize network request - which are slow.
*
* @author blafoo
*/
public class CacheCache {
private static final int MAX_CACHED_CACHES = 1000;
final private LeastRecentlyUsedCache<String, cgCache> cachesCache;
private static CacheCache instance = null;
private CacheCache() {
cachesCache = new LeastRecentlyUsedCache<String, cgCache>(MAX_CACHED_CACHES);
}
public static CacheCache getInstance() {
if (instance == null) {
instance = new CacheCache();
}
return instance;
}
public void removeAll() {
cachesCache.clear();
}
/**
* @param geocode
* Geocode of the cache to remove from the cache
*/
public void removeCacheFromCache(final String geocode) {
if (geocode != null && cachesCache.containsKey(geocode)) {
cachesCache.remove(geocode);
}
}
/**
* @param cache
* Cache to "store" in the cache
*/
public void putCacheInCache(final cgCache cache) {
if (cache == null || cache.getGeocode() == null) {
return;
}
if (cachesCache.containsKey(cache.getGeocode())) {
cachesCache.remove(cache.getGeocode());
}
cache.addStorageLocation(StorageLocation.CACHE);
cachesCache.put(cache.getGeocode(), cache);
}
/**
* @param geocode
* Geocode of the cache to retrieve from the cache
* @return cache if found, null else
*/
public cgCache getCacheFromCache(final String geocode) {
if (geocode != null && cachesCache.containsKey(geocode)) {
return cachesCache.get(geocode);
}
return null;
}
}
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