Fix inconsistent whitespace
git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1590190 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Nick Burch
parent
c3769b5da0
commit
b77ce4fede
@ -29,147 +29,147 @@ import org.apache.poi.util.LittleEndian;
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* {@link NPOIFSFileSystem} instance.
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*/
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public final class NDocumentInputStream extends DocumentInputStream {
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/** current offset into the Document */
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private int _current_offset;
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/** current block count */
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private int _current_block_count;
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/** current offset into the Document */
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private int _current_offset;
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/** current block count */
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private int _current_block_count;
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/** current marked offset into the Document (used by mark and reset) */
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private int _marked_offset;
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/** and the block count for it */
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private int _marked_offset_count;
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/** current marked offset into the Document (used by mark and reset) */
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private int _marked_offset;
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/** and the block count for it */
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private int _marked_offset_count;
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/** the Document's size */
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private int _document_size;
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/** the Document's size */
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private int _document_size;
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/** have we been closed? */
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private boolean _closed;
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/** have we been closed? */
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private boolean _closed;
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/** the actual Document */
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private NPOIFSDocument _document;
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private Iterator<ByteBuffer> _data;
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private ByteBuffer _buffer;
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/** the actual Document */
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private NPOIFSDocument _document;
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/**
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* Create an InputStream from the specified DocumentEntry
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*
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* @param document the DocumentEntry to be read
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*
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* @exception IOException if the DocumentEntry cannot be opened (like, maybe it has
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* been deleted?)
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*/
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public NDocumentInputStream(DocumentEntry document) throws IOException {
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if (!(document instanceof DocumentNode)) {
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throw new IOException("Cannot open internal document storage, " + document + " not a Document Node");
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}
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_current_offset = 0;
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_current_block_count = 0;
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_marked_offset = 0;
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_marked_offset_count = 0;
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_document_size = document.getSize();
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_closed = false;
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DocumentNode doc = (DocumentNode)document;
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DocumentProperty property = (DocumentProperty)doc.getProperty();
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_document = new NPOIFSDocument(
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property,
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((DirectoryNode)doc.getParent()).getNFileSystem()
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);
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_data = _document.getBlockIterator();
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}
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private Iterator<ByteBuffer> _data;
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private ByteBuffer _buffer;
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/**
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* Create an InputStream from the specified Document
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*
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* @param document the Document to be read
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*/
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public NDocumentInputStream(NPOIFSDocument document) {
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_current_offset = 0;
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_current_block_count = 0;
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_marked_offset = 0;
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_marked_offset_count = 0;
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_document_size = document.getSize();
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_closed = false;
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_document = document;
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_data = _document.getBlockIterator();
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}
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/**
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* Create an InputStream from the specified DocumentEntry
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*
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* @param document the DocumentEntry to be read
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*
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* @exception IOException if the DocumentEntry cannot be opened (like, maybe it has
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* been deleted?)
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*/
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public NDocumentInputStream(DocumentEntry document) throws IOException {
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if (!(document instanceof DocumentNode)) {
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throw new IOException("Cannot open internal document storage, " + document + " not a Document Node");
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}
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_current_offset = 0;
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_current_block_count = 0;
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_marked_offset = 0;
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_marked_offset_count = 0;
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_document_size = document.getSize();
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_closed = false;
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@Override
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public int available() {
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if (_closed) {
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throw new IllegalStateException("cannot perform requested operation on a closed stream");
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}
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return _document_size - _current_offset;
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}
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DocumentNode doc = (DocumentNode)document;
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DocumentProperty property = (DocumentProperty)doc.getProperty();
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_document = new NPOIFSDocument(
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property,
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((DirectoryNode)doc.getParent()).getNFileSystem()
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);
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_data = _document.getBlockIterator();
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}
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@Override
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public void close() {
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_closed = true;
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}
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/**
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* Create an InputStream from the specified Document
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*
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* @param document the Document to be read
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*/
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public NDocumentInputStream(NPOIFSDocument document) {
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_current_offset = 0;
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_current_block_count = 0;
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_marked_offset = 0;
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_marked_offset_count = 0;
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_document_size = document.getSize();
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_closed = false;
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_document = document;
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_data = _document.getBlockIterator();
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}
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@Override
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public void mark(int ignoredReadlimit) {
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_marked_offset = _current_offset;
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_marked_offset_count = Math.max(0, _current_block_count - 1);
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}
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@Override
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public int available() {
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if (_closed) {
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throw new IllegalStateException("cannot perform requested operation on a closed stream");
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}
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return _document_size - _current_offset;
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}
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@Override
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public int read() throws IOException {
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dieIfClosed();
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if (atEOD()) {
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return EOF;
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}
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byte[] b = new byte[1];
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int result = read(b, 0, 1);
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if(result >= 0) {
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if(b[0] < 0) {
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return b[0]+256;
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}
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return b[0];
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}
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return result;
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}
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@Override
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public void close() {
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_closed = true;
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}
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@Override
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public int read(byte[] b, int off, int len) throws IOException {
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dieIfClosed();
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if (b == null) {
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throw new IllegalArgumentException("buffer must not be null");
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}
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if (off < 0 || len < 0 || b.length < off + len) {
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throw new IndexOutOfBoundsException("can't read past buffer boundaries");
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}
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if (len == 0) {
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return 0;
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}
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if (atEOD()) {
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return EOF;
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}
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int limit = Math.min(available(), len);
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readFully(b, off, limit);
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return limit;
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}
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@Override
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public void mark(int ignoredReadlimit) {
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_marked_offset = _current_offset;
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_marked_offset_count = Math.max(0, _current_block_count - 1);
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}
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/**
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* Repositions this stream to the position at the time the mark() method was
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* last called on this input stream. If mark() has not been called this
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* method repositions the stream to its beginning.
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*/
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@Override
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public void reset() {
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// Special case for reset to the start
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if(_marked_offset == 0 && _marked_offset_count == 0) {
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_current_block_count = _marked_offset_count;
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_current_offset = _marked_offset;
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_data = _document.getBlockIterator();
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_buffer = null;
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return;
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}
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// Start again, then wind on to the required block
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_data = _document.getBlockIterator();
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_current_offset = 0;
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@Override
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public int read() throws IOException {
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dieIfClosed();
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if (atEOD()) {
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return EOF;
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}
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byte[] b = new byte[1];
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int result = read(b, 0, 1);
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if(result >= 0) {
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if(b[0] < 0) {
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return b[0]+256;
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}
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return b[0];
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}
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return result;
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}
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@Override
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public int read(byte[] b, int off, int len) throws IOException {
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dieIfClosed();
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if (b == null) {
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throw new IllegalArgumentException("buffer must not be null");
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}
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if (off < 0 || len < 0 || b.length < off + len) {
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throw new IndexOutOfBoundsException("can't read past buffer boundaries");
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}
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if (len == 0) {
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return 0;
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}
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if (atEOD()) {
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return EOF;
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}
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int limit = Math.min(available(), len);
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readFully(b, off, limit);
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return limit;
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}
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/**
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* Repositions this stream to the position at the time the mark() method was
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* last called on this input stream. If mark() has not been called this
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* method repositions the stream to its beginning.
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*/
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@Override
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public void reset() {
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// Special case for reset to the start
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if(_marked_offset == 0 && _marked_offset_count == 0) {
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_current_block_count = _marked_offset_count;
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_current_offset = _marked_offset;
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_data = _document.getBlockIterator();
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_buffer = null;
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return;
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}
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// Start again, then wind on to the required block
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_data = _document.getBlockIterator();
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_current_offset = 0;
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for(int i=0; i<_marked_offset_count; i++) {
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_buffer = _data.next();
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_current_offset += _buffer.remaining();
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