Package org.apache.pdfbox.pdfparser

Class PDFXrefStreamParser

java.lang.Object

org.apache.pdfbox.pdfparser.BaseParser

org.apache.pdfbox.pdfparser.PDFXrefStreamParser

public class PDFXrefStreamParser
extends BaseParser

This will parse a PDF 1.5 (or better) Xref stream and extract the xref information from the stream.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
private static class	PDFXrefStreamParser.ObjectNumbers

Field Summary

Fields

Modifier and Type	Field	Description
private PDFXrefStreamParser.ObjectNumbers	objectNumbers
private int[]	w
private XrefTrailerResolver	xrefTrailerResolver

Fields inherited from class org.apache.pdfbox.pdfparser.BaseParser

A, ASCII_CR, ASCII_LF, B, D, DEF, document, E, ENDOBJ_STRING, ENDSTREAM_STRING, J, M, MAX_LENGTH_LONG, N, O, R, S, seqSource, STREAM_STRING, T

Constructor Summary

Constructors

Constructor	Description
PDFXrefStreamParser(COSStream stream, COSDocument document, XrefTrailerResolver resolver)	Constructor.

Method Summary

Modifier and Type	Method	Description
private void	close()
private void	initParserValues(COSStream stream)
void	parse()	Parses through the unfiltered stream and populates the xrefTable HashMap.
private long	parseValue(byte[] data, int start, int length)

Methods inherited from class org.apache.pdfbox.pdfparser.BaseParser

isClosing, isClosing, isDigit, isDigit, isEndOfName, isEOL, isEOL, isSpace, isSpace, isWhitespace, isWhitespace, parseBoolean, parseCOSArray, parseCOSDictionary, parseCOSName, parseCOSString, parseDirObject, readExpectedChar, readExpectedString, readExpectedString, readGenerationNumber, readInt, readLine, readLong, readObjectNumber, readString, readString, readStringNumber, skipSpaces, skipWhiteSpaces

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

xrefTrailerResolver

private final XrefTrailerResolver xrefTrailerResolver

w

private final int[] w

objectNumbers

private PDFXrefStreamParser.ObjectNumbers objectNumbers

Constructor Detail

PDFXrefStreamParser

public PDFXrefStreamParser(COSStream stream,
                           COSDocument document,
                           XrefTrailerResolver resolver)
                    throws java.io.IOException

Constructor.

Parameters:

stream - The stream to parse.

document - The document for the current parsing.

resolver - resolver to read the xref/trailer information

Throws:

java.io.IOException - If there is an error initializing the stream.

Method Detail

initParserValues

private void initParserValues(COSStream stream)
                       throws java.io.IOException

Throws:

java.io.IOException

close

private void close()
            throws java.io.IOException

Throws:

java.io.IOException

parse

public void parse()
           throws java.io.IOException

Parses through the unfiltered stream and populates the xrefTable HashMap.

Throws:

java.io.IOException - If there is an error while parsing the stream.

parseValue

private long parseValue(byte[] data,
                        int start,
                        int length)