private void loadPart(final int blockIndex) {
int size = blockSize;
int fileOffset = blockIndex * blockSize;
if ((blockIndex + 1) * blockSize > srcReference.getSize()) {
size = srcReference.getSize() - blockIndex * blockSize;
}
// TODO: Validate file part load ordering
inputFile
.read(fileOffset, size)
.then(
filePart -> {
if (isCompleted) {
return;
}
if (LOG) {
Log.d(TAG, "Block #" + blockIndex + " read");
}
if (isWriteToDestProvider) {
if (!outputFile.write(
fileOffset, filePart.getContents(), 0, filePart.getPartLength())) {
if (LOG) {
Log.w(TAG, "write #" + blockIndex + " error");
}
reportError();
return;
}
}
crc32.update(filePart.getContents(), 0, filePart.getPartLength());
if (LOG) {
Log.d(TAG, "Starting block upload #" + blockIndex);
}
uploadCount++;
uploadPart(blockIndex, filePart.getContents(), 0);
checkQueue();
})
.failure(
e -> {
if (isCompleted) {
return;
}
if (LOG) {
Log.w(TAG, "Block #" + blockIndex + " read failure");
}
reportError();
});
}
@Override
public void preStart() {
alreadyInTemp = false; // Storage.isAlreadyInTemp(descriptor);
isWriteToDestProvider = Storage.isFsPersistent() && !alreadyInTemp;
srcReference = Storage.fileFromDescriptor(descriptor);
if (srcReference == null) {
if (LOG) {
Log.d(TAG, "Error during file reference creating");
}
reportError();
return;
}
if (isWriteToDestProvider) {
destReference = Storage.createTempFile();
if (destReference == null) {
if (LOG) {
Log.w(TAG, "Error during file dest reference creating");
}
reportError();
return;
}
}
srcReference
.openRead()
.flatMap(
f -> {
inputFile = f;
if (isWriteToDestProvider) {
return destReference.openWrite(srcReference.getSize());
} else {
return Promise.success(null);
}
})
.flatMap(
f -> {
outputFile = f;
crc32 = new CRC32();
blocksCount = srcReference.getSize() / blockSize;
if (srcReference.getSize() % blockSize != 0) {
blocksCount++;
}
if (LOG) {
Log.d(TAG, "Starting uploading " + blocksCount + " blocks");
Log.d(TAG, "Requesting upload config...");
}
return api(new RequestGetFileUploadUrl(srcReference.getSize()));
})
.then(
r -> {
if (LOG) {
Log.d(TAG, "Upload config loaded");
}
uploadConfig = r.getUploadKey();
checkQueue();
})
.failure(
e -> {
if (LOG) {
Log.w(TAG, "Error during initialization of upload");
}
reportError();
});
}