@Override
@NonNull
public CacheDownloadLoader.Result loadInBackground() {
if (mUri == null) {
return Result.nullInstance();
}
final String scheme = mUri.getScheme();
File cacheFile = null;
if ("http".equals(scheme) || "https".equals(scheme)) {
final String uriString = mUri.toString();
if (uriString == null) return Result.nullInstance();
cacheFile = mDiskCache.get(uriString);
if (isValid(cacheFile)) {
return Result.getInstance(CacheProvider.getCacheUri(uriString));
}
try {
// from SD cache
ContentLengthInputStream cis;
final InputStream is = mDownloader.get(uriString);
if (is == null) return Result.nullInstance();
try {
final long length = is.available();
mHandler.post(new DownloadStartRunnable(this, mListener, length));
cis = new ContentLengthInputStream(is, length);
mDiskCache.save(
uriString,
cis,
new IoUtils.CopyListener() {
@Override
public boolean onBytesCopied(int current, int total) {
mHandler.post(new ProgressUpdateRunnable(mListener, current, total));
return !isAbandoned();
}
});
mHandler.post(new DownloadFinishRunnable(this, mListener));
} finally {
Utils.closeSilently(is);
}
cacheFile = mDiskCache.get(uriString);
if (isValid(cacheFile)) {
return Result.getInstance(CacheProvider.getCacheUri(uriString));
} else {
mDiskCache.remove(uriString);
throw new IOException();
}
} catch (final Exception e) {
mHandler.post(new DownloadErrorRunnable(this, mListener, e));
return Result.getInstance(e);
}
}
return Result.getInstance(mUri);
}
public File getCachedVideoFile(final String url, boolean loadIfNotFound) {
if (url == null) return null;
final File cache = mDiskCache.get(url);
if (cache.exists()) return cache;
else if (loadIfNotFound) {
loadVideo(url, null);
}
return null;
}
@Override
protected SingleResponse<File> doInBackground(Object... params) {
final DiskCache diskCache = mPreLoader.mDiskCache;
final File cachedFile = diskCache.get(mUri);
if (!mForceReload && cachedFile != null && cachedFile.isFile() && cachedFile.length() > 0)
return SingleResponse.getInstance(cachedFile);
InputStream is = null;
try {
is = mPreLoader.mImageDownloader.getStream(mUri, null);
diskCache.save(mUri, is, this);
return SingleResponse.getInstance(diskCache.get(mUri));
} catch (IOException e) {
diskCache.remove(mUri);
Log.w(LOGTAG, e);
return SingleResponse.getInstance(e);
} finally {
IoUtils.closeSilently(is);
}
}
@Override
public void save(
@NonNull final String key,
@NonNull final InputStream is,
byte[] extra,
final CopyListener listener)
throws IOException {
cache.save(
key,
is,
new IoUtils.CopyListener() {
@Override
public boolean onBytesCopied(final int current, final int total) {
return listener == null || listener.onCopied(current);
}
});
if (extra != null) {
cache.save(CacheProvider.getExtraKey(key), new ByteArrayInputStream(extra), null);
}
}
public static File findInCache(String paramString, DiskCache paramDiskCache) {
File localFile = paramDiskCache.get(paramString);
if ((localFile != null) && (localFile.exists())) return localFile;
return null;
}
public static boolean removeFromCache(String paramString, DiskCache paramDiskCache) {
File localFile = paramDiskCache.get(paramString);
return (localFile != null) && (localFile.exists()) && (localFile.delete());
}
@Override
public TileImageLoader.Result loadInBackground() {
if (mUri == null) {
return Result.nullInstance();
}
final String scheme = mUri.getScheme();
if ("http".equals(scheme) || "https".equals(scheme)) {
final String url = mUri.toString();
if (url == null) return Result.nullInstance();
File cacheFile = mDiskCache.get(url);
if (cacheFile != null) {
final int cachedValidity = ImageValidator.checkImageValidity(cacheFile);
if (ImageValidator.isValid(cachedValidity)) {
// The file is corrupted, so we remove it from
// cache.
return decodeBitmapOnly(
cacheFile, ImageValidator.isValidForRegionDecoder(cachedValidity));
}
}
try {
// from SD cache
final InputStream is = mDownloader.getStream(url, new AccountExtra(mAccountId));
if (is == null) return Result.nullInstance();
try {
final long length = is.available();
mHandler.post(new DownloadStartRunnable(this, mListener, length));
mDiskCache.save(
url,
is,
new IoUtils.CopyListener() {
@Override
public boolean onBytesCopied(int current, int total) {
mHandler.post(new ProgressUpdateRunnable(mListener, current));
return !isAbandoned();
}
});
mHandler.post(new DownloadFinishRunnable(this, mListener));
} finally {
IoUtils.closeSilently(is);
}
cacheFile = mDiskCache.get(url);
final int downloadedValidity = ImageValidator.checkImageValidity(cacheFile);
if (ImageValidator.isValid(downloadedValidity)) {
// The file is corrupted, so we remove it from
// cache.
return decodeBitmapOnly(
cacheFile, ImageValidator.isValidForRegionDecoder(downloadedValidity));
} else {
mDiskCache.remove(url);
throw new IOException();
}
} catch (final Exception e) {
mHandler.post(new DownloadErrorRunnable(this, mListener, e));
return Result.getInstance(cacheFile, e);
}
} else if (ContentResolver.SCHEME_FILE.equals(scheme)) {
final File file = new File(mUri.getPath());
try {
return decodeBitmapOnly(
file, ImageValidator.isValidForRegionDecoder(ImageValidator.checkImageValidity(file)));
} catch (final Exception e) {
return Result.getInstance(file, e);
}
}
return Result.nullInstance();
}
@Override
public void remove(@NonNull final String key) {
cache.remove(key);
}
@Override
public File get(@NonNull final String key) {
return cache.get(key);
}