public void clearDiskCache(String uri) {
synchronized (mDiskCacheLock) {
if (mDiskLruCache != null && !mDiskLruCache.isClosed()) {
try {
mDiskLruCache.remove(uri);
} catch (Throwable e) {
LogUtils.e(e.getMessage(), e);
}
}
}
}
/**
* Closes the disk cache associated with this ImageCache object. Note that this includes disk
* access so this should not be executed on the main/UI thread.
*/
public void close() {
synchronized (mDiskCacheLock) {
if (mDiskLruCache != null) {
try {
if (!mDiskLruCache.isClosed()) {
mDiskLruCache.close();
mDiskLruCache = null;
}
} catch (Throwable e) {
LogUtils.e(e.getMessage(), e);
}
}
}
}
public void clearDiskCache() {
synchronized (mDiskCacheLock) {
if (mDiskLruCache != null && !mDiskLruCache.isClosed()) {
try {
mDiskLruCache.delete();
} catch (Throwable e) {
LogUtils.e(e.getMessage(), e);
}
mDiskLruCache = null;
isDiskCacheReadied = false;
}
}
initDiskCache();
}
/**
* Flushes the disk cache associated with this ImageCache object. Note that this includes disk
* access so this should not be executed on the main/UI thread.
*/
public void flush() {
synchronized (mDiskCacheLock) {
if (mDiskLruCache != null) {
try {
mDiskLruCache.flush();
} catch (Throwable e) {
LogUtils.e(e.getMessage(), e);
}
}
}
}
/**
* Get the bitmap from disk cache.
*
* @param uri
* @param config
* @return
*/
public Bitmap getBitmapFromDiskCache(String uri, BitmapDisplayConfig config) {
if (uri == null || !globalConfig.isDiskCacheEnabled()) return null;
synchronized (mDiskCacheLock) {
while (!isDiskCacheReadied) {
try {
mDiskCacheLock.wait();
} catch (Throwable e) {
}
}
}
if (mDiskLruCache != null) {
LruDiskCache.Snapshot snapshot = null;
try {
snapshot = mDiskLruCache.get(uri);
if (snapshot != null) {
Bitmap bitmap = null;
if (config == null || config.isShowOriginal()) {
bitmap =
BitmapDecoder.decodeFileDescriptor(
snapshot.getInputStream(DISK_CACHE_INDEX).getFD());
} else {
bitmap =
BitmapDecoder.decodeSampledBitmapFromDescriptor(
snapshot.getInputStream(DISK_CACHE_INDEX).getFD(),
config.getBitmapMaxSize(),
config.getBitmapConfig());
}
bitmap = rotateBitmapIfNeeded(uri, config, bitmap);
addBitmapToMemoryCache(uri, config, bitmap, mDiskLruCache.getExpiryTimestamp(uri));
return bitmap;
}
} catch (Throwable e) {
LogUtils.e(e.getMessage(), e);
} finally {
IOUtils.closeQuietly(snapshot);
}
}
return null;
}
/**
* Initializes the disk cache. Note that this includes disk access so this should not be executed
* on the main/UI thread. By default an ImageCache does not initialize the disk cache when it is
* created, instead you should call initDiskCache() to initialize it on a background thread.
*/
public void initDiskCache() {
if (!globalConfig.isDiskCacheEnabled()) return;
// Set up disk cache
synchronized (mDiskCacheLock) {
if (mDiskLruCache == null || mDiskLruCache.isClosed()) {
File diskCacheDir = new File(globalConfig.getDiskCachePath());
if (diskCacheDir.exists() || diskCacheDir.mkdirs()) {
long availableSpace = OtherUtils.getAvailableSpace(diskCacheDir);
long diskCacheSize = globalConfig.getDiskCacheSize();
diskCacheSize = availableSpace > diskCacheSize ? diskCacheSize : availableSpace;
try {
mDiskLruCache = LruDiskCache.open(diskCacheDir, 1, 1, diskCacheSize);
mDiskLruCache.setFileNameGenerator(globalConfig.getFileNameGenerator());
} catch (Throwable e) {
mDiskLruCache = null;
LogUtils.e(e.getMessage(), e);
}
}
}
isDiskCacheReadied = true;
mDiskCacheLock.notifyAll();
}
}
/**
* Get the bitmap file from disk cache.
*
* @param uri Unique identifier for which item to get
* @return The file if found in cache.
*/
public File getBitmapFileFromDiskCache(String uri) {
if (mDiskLruCache != null) {
return mDiskLruCache.getCacheFile(uri, DISK_CACHE_INDEX);
}
return null;
}
public Bitmap downloadBitmap(
String uri, BitmapDisplayConfig config, final BitmapUtils.BitmapLoadTask<?> task) {
BitmapMeta bitmapMeta = new BitmapMeta();
OutputStream outputStream = null;
LruDiskCache.Snapshot snapshot = null;
try {
Bitmap bitmap = null;
// try download to disk
if (globalConfig.isDiskCacheEnabled()) {
synchronized (mDiskCacheLock) {
// Wait for disk cache to initialize
while (!isDiskCacheReadied) {
try {
mDiskCacheLock.wait();
} catch (Throwable e) {
}
}
}
if (mDiskLruCache != null) {
try {
snapshot = mDiskLruCache.get(uri);
if (snapshot == null) {
LruDiskCache.Editor editor = mDiskLruCache.edit(uri);
if (editor != null) {
outputStream = editor.newOutputStream(DISK_CACHE_INDEX);
bitmapMeta.expiryTimestamp =
globalConfig.getDownloader().downloadToStream(uri, outputStream, task);
if (bitmapMeta.expiryTimestamp < 0) {
editor.abort();
return null;
} else {
editor.setEntryExpiryTimestamp(bitmapMeta.expiryTimestamp);
editor.commit();
}
snapshot = mDiskLruCache.get(uri);
}
}
if (snapshot != null) {
bitmapMeta.inputStream = snapshot.getInputStream(DISK_CACHE_INDEX);
bitmap = decodeBitmapMeta(bitmapMeta, config);
if (bitmap == null) {
bitmapMeta.inputStream = null;
mDiskLruCache.remove(uri);
}
}
} catch (Throwable e) {
LogUtils.e(e.getMessage(), e);
}
}
}
// try download to memory stream
if (bitmap == null) {
outputStream = new ByteArrayOutputStream();
bitmapMeta.expiryTimestamp =
globalConfig.getDownloader().downloadToStream(uri, outputStream, task);
if (bitmapMeta.expiryTimestamp < 0) {
return null;
} else {
bitmapMeta.data = ((ByteArrayOutputStream) outputStream).toByteArray();
bitmap = decodeBitmapMeta(bitmapMeta, config);
}
}
if (bitmap != null) {
bitmap = rotateBitmapIfNeeded(uri, config, bitmap);
if (config != null && config.getImageFactory() != null) {
bitmap = config.getImageFactory().createBitmap(bitmap);
}
addBitmapToMemoryCache(uri, config, bitmap, bitmapMeta.expiryTimestamp);
}
return bitmap;
} catch (Throwable e) {
LogUtils.e(e.getMessage(), e);
} finally {
IOUtils.closeQuietly(outputStream);
IOUtils.closeQuietly(snapshot);
}
return null;
}
public void setDiskCacheFileNameGenerator(FileNameGenerator fileNameGenerator) {
if (mDiskLruCache != null && fileNameGenerator != null) {
mDiskLruCache.setFileNameGenerator(fileNameGenerator);
}
}
public void setDiskCacheSize(int maxSize) {
if (mDiskLruCache != null) {
mDiskLruCache.setMaxSize(maxSize);
}
}