diff options
Diffstat (limited to 'src/com/android/gallery3d/util/CacheManager.java')
-rw-r--r-- | src/com/android/gallery3d/util/CacheManager.java | 82 |
1 files changed, 0 insertions, 82 deletions
diff --git a/src/com/android/gallery3d/util/CacheManager.java b/src/com/android/gallery3d/util/CacheManager.java deleted file mode 100644 index ba466f79b..000000000 --- a/src/com/android/gallery3d/util/CacheManager.java +++ /dev/null @@ -1,82 +0,0 @@ -/* - * Copyright (C) 2010 The Android Open Source Project - * - * 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.android.gallery3d.util; - -import android.content.Context; -import android.content.SharedPreferences; -import android.preference.PreferenceManager; - -import com.android.gallery3d.common.BlobCache; - -import java.io.File; -import java.io.IOException; -import java.util.HashMap; - -public class CacheManager { - private static final String TAG = "CacheManager"; - private static final String KEY_CACHE_UP_TO_DATE = "cache-up-to-date"; - private static HashMap<String, BlobCache> sCacheMap = - new HashMap<String, BlobCache>(); - private static boolean sOldCheckDone = false; - - // Return null when we cannot instantiate a BlobCache, e.g.: - // there is no SD card found. - // This can only be called from data thread. - public static BlobCache getCache(Context context, String filename, - int maxEntries, int maxBytes, int version) { - synchronized (sCacheMap) { - if (!sOldCheckDone) { - removeOldFilesIfNecessary(context); - sOldCheckDone = true; - } - BlobCache cache = sCacheMap.get(filename); - if (cache == null) { - File cacheDir = context.getExternalCacheDir(); - String path = cacheDir.getAbsolutePath() + "/" + filename; - try { - cache = new BlobCache(path, maxEntries, maxBytes, false, - version); - sCacheMap.put(filename, cache); - } catch (IOException e) { - Log.e(TAG, "Cannot instantiate cache!", e); - } - } - return cache; - } - } - - // Removes the old files if the data is wiped. - private static void removeOldFilesIfNecessary(Context context) { - SharedPreferences pref = PreferenceManager - .getDefaultSharedPreferences(context); - int n = 0; - try { - n = pref.getInt(KEY_CACHE_UP_TO_DATE, 0); - } catch (Throwable t) { - // ignore. - } - if (n != 0) return; - pref.edit().putInt(KEY_CACHE_UP_TO_DATE, 1).commit(); - - File cacheDir = context.getExternalCacheDir(); - String prefix = cacheDir.getAbsolutePath() + "/"; - - BlobCache.deleteFiles(prefix + "imgcache"); - BlobCache.deleteFiles(prefix + "rev_geocoding"); - BlobCache.deleteFiles(prefix + "bookmark"); - } -} |