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-rw-r--r--src/com/android/gallery3d/data/ImageCacheService.java123
1 files changed, 0 insertions, 123 deletions
diff --git a/src/com/android/gallery3d/data/ImageCacheService.java b/src/com/android/gallery3d/data/ImageCacheService.java
deleted file mode 100644
index 1c7cb8c5e..000000000
--- a/src/com/android/gallery3d/data/ImageCacheService.java
+++ /dev/null
@@ -1,123 +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.data;
-
-import android.content.Context;
-
-import com.android.gallery3d.common.BlobCache;
-import com.android.gallery3d.common.BlobCache.LookupRequest;
-import com.android.gallery3d.common.Utils;
-import com.android.gallery3d.data.BytesBufferPool.BytesBuffer;
-import com.android.gallery3d.util.CacheManager;
-import com.android.gallery3d.util.GalleryUtils;
-
-import java.io.IOException;
-import java.nio.ByteBuffer;
-
-public class ImageCacheService {
- @SuppressWarnings("unused")
- private static final String TAG = "ImageCacheService";
-
- private static final String IMAGE_CACHE_FILE = "imgcache";
- private static final int IMAGE_CACHE_MAX_ENTRIES = 5000;
- private static final int IMAGE_CACHE_MAX_BYTES = 200 * 1024 * 1024;
- private static final int IMAGE_CACHE_VERSION = 7;
-
- private BlobCache mCache;
-
- public ImageCacheService(Context context) {
- mCache = CacheManager.getCache(context, IMAGE_CACHE_FILE,
- IMAGE_CACHE_MAX_ENTRIES, IMAGE_CACHE_MAX_BYTES,
- IMAGE_CACHE_VERSION);
- }
-
- /**
- * Gets the cached image data for the given <code>path</code>,
- * <code>timeModified</code> and <code>type</code>.
- *
- * The image data will be stored in <code>buffer.data</code>, started from
- * <code>buffer.offset</code> for <code>buffer.length</code> bytes. If the
- * buffer.data is not big enough, a new byte array will be allocated and returned.
- *
- * @return true if the image data is found; false if not found.
- */
- public boolean getImageData(Path path, long timeModified, int type, BytesBuffer buffer) {
- byte[] key = makeKey(path, timeModified, type);
- long cacheKey = Utils.crc64Long(key);
- try {
- LookupRequest request = new LookupRequest();
- request.key = cacheKey;
- request.buffer = buffer.data;
- synchronized (mCache) {
- if (!mCache.lookup(request)) return false;
- }
- if (isSameKey(key, request.buffer)) {
- buffer.data = request.buffer;
- buffer.offset = key.length;
- buffer.length = request.length - buffer.offset;
- return true;
- }
- } catch (IOException ex) {
- // ignore.
- }
- return false;
- }
-
- public void putImageData(Path path, long timeModified, int type, byte[] value) {
- byte[] key = makeKey(path, timeModified, type);
- long cacheKey = Utils.crc64Long(key);
- ByteBuffer buffer = ByteBuffer.allocate(key.length + value.length);
- buffer.put(key);
- buffer.put(value);
- synchronized (mCache) {
- try {
- mCache.insert(cacheKey, buffer.array());
- } catch (IOException ex) {
- // ignore.
- }
- }
- }
-
- public void clearImageData(Path path, long timeModified, int type) {
- byte[] key = makeKey(path, timeModified, type);
- long cacheKey = Utils.crc64Long(key);
- synchronized (mCache) {
- try {
- mCache.clearEntry(cacheKey);
- } catch (IOException ex) {
- // ignore.
- }
- }
- }
-
- private static byte[] makeKey(Path path, long timeModified, int type) {
- return GalleryUtils.getBytes(path.toString() + "+" + timeModified + "+" + type);
- }
-
- private static boolean isSameKey(byte[] key, byte[] buffer) {
- int n = key.length;
- if (buffer.length < n) {
- return false;
- }
- for (int i = 0; i < n; ++i) {
- if (key[i] != buffer[i]) {
- return false;
- }
- }
- return true;
- }
-}