@Override
public void clear() {
try {
cache.delete();
} catch (IOException e) {
L.e(e);
}
try {
initCache(cache.getDirectory(), reserveCacheDir, cache.getMaxSize(), cache.getMaxFileCount());
} catch (IOException e) {
L.e(e);
}
}
@Override
public void close() {
try {
cache.close();
} catch (IOException e) {
L.e(e);
}
cache = null;
}
@Override
public boolean remove(String imageUri) {
try {
return cache.remove(getKey(imageUri));
} catch (IOException e) {
L.e(e);
return false;
}
}
@Override
public File get(String imageUri) {
DiskLruCache.Snapshot snapshot = null;
try {
snapshot = cache.get(getKey(imageUri));
return snapshot == null ? null : snapshot.getFile(0);
} catch (IOException e) {
L.e(e);
return null;
} finally {
if (snapshot != null) {
snapshot.close();
}
}
}
private void initCache(
File cacheDir, File reserveCacheDir, long cacheMaxSize, int cacheMaxFileCount)
throws IOException {
try {
cache = DiskLruCache.open(cacheDir, 1, 1, cacheMaxSize, cacheMaxFileCount);
} catch (IOException e) {
L.e(e);
if (reserveCacheDir != null) {
initCache(reserveCacheDir, null, cacheMaxSize, cacheMaxFileCount);
}
if (cache == null) {
throw e; // new RuntimeException("Can't initialize disk cache", e);
}
}
}