private void initChunk() throws IOException {
blockPointer = blockCursor.getBlockPointer();
streamOffset = 0;
if (blockCursor.getBlockType() == Constants.PLAIN_BLOCK) {
inputStream = new CountingInputStream(blockCursor.getInputStream());
return;
}
Preconditions.checkState(blockCursor.getBlockType() == Constants.FIRST_LZMA_BLOCK);
startLzmaDecoder(true);
}
private void resumeLzmaDecoder() throws IOException {
if (lzmaDecoder == null) {
lzmaDecoder = new LzmaDecoder(blockCursor.getExecutorService());
}
lzmaDecoder.init(lzmaProperties);
inputStream = new CountingInputStream(lzmaDecoder.getInputStream(encodedInputStream));
}
public void next() throws IOException {
streamOffset = getRecordOffset();
inputStream.close();
if (encodedInputStream != null && encodedInputStream.available() > 0) {
Preconditions.checkState(
blockCursor.getBlockType() == Constants.FIRST_LZMA_BLOCK
|| blockCursor.getBlockType() == Constants.NEXT_LZMA_BLOCK);
resumeLzmaDecoder();
return;
}
encodedInputStream = null;
blockCursor.next();
if (blockCursor.getBlockType() == Constants.NEXT_LZMA_BLOCK) {
startLzmaDecoder(false);
return;
}
initChunk();
}
public void seek(BlockPointer pointer) throws IOException {
inputStream.close();
blockCursor.seek(pointer);
initChunk();
}