public AppEngineFile createNewBlobFile(String mimeType, String uploadedFileName)
throws IOException {
if (mimeType == null || mimeType.trim().isEmpty()) {
mimeType = DEFAULT_MIME_TYPE;
}
Map<String, String> params = new TreeMap<String, String>();
params.put(PARAMETER_MIME_TYPE, mimeType);
if (uploadedFileName != null && !uploadedFileName.isEmpty()) {
params.put(PARAMETER_BLOB_INFO_UPLOADED_FILE_NAME, uploadedFileName);
}
String filePath =
createFilePath(
FILESYSTEM_BLOBSTORE, null, FileServicePb.FileContentType.ContentType.RAW, params);
AppEngineFile file = new AppEngineFile(filePath);
if (!file.getNamePart().startsWith(CREATION_HANDLE_PREFIX)) {
throw new RuntimeException("Expected creation handle: " + file.getFullPath());
}
return file;
}
public FileReadChannel openReadChannel(AppEngineFile file, boolean lock)
throws FileNotFoundException, LockException, IOException {
GridFilesystem gfs = getGridFilesystem();
return new JBossFileReadChannel(gfs.getInput(file.getFullPath())); // TODO lock?
}