ome.jxr.parser

Class FileParser

java.lang.Object

ome.jxr.parser.Parser

ome.jxr.parser.FileParser

public final class FileParser
extends Parser

Parses the first bytes of the image file and validates the extracted values for conformance with the file format specification. Throws exceptions early, so that further and more expensive operation can be avoided.

Author:

Blazej Pindelski bpindelski at dundee.ac.uk

Field Summary

Fields

Modifier and Type	Field and Description
private int	encoderVersion
private long	fileSize
private boolean	isLittleEndian
private int	rootIFDOffset

Fields inherited from class ome.jxr.parser.Parser

parsingOffset, stream

Constructor Summary

Constructors

Constructor and Description
FileParser(RandomAccessInputStream stream)

Method Summary

Methods

Modifier and Type	Method and Description
private void	calculateIFDOffset()
private void	checkFileSize()
private void	checkFileStructureVersion()
private void	checkHeaderBOM()
private void	checkHeaderLength()
private void	checkIfValidJpegXr()
void	close()
int	getEncoderVersion()
long	getFileSize()
int	getRootIFDOffset()
boolean	isLittleEndian()
void	parse(long parsingOffset)

Methods inherited from class ome.jxr.parser.Parser

getParentParser, parse

Methods inherited from class java.lang.Object

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

Field Detail

encoderVersion

private int encoderVersion

isLittleEndian

private boolean isLittleEndian

rootIFDOffset

private int rootIFDOffset

fileSize

private long fileSize

Constructor Detail

FileParser

public FileParser(RandomAccessInputStream stream)

Method Detail

getEncoderVersion

public int getEncoderVersion()

getFileSize

public long getFileSize()

isLittleEndian

public boolean isLittleEndian()

getRootIFDOffset

public int getRootIFDOffset()

parse

public void parse(long parsingOffset)
           throws JXRException

Overrides:

parse in class Parser

Throws:

JXRException

checkFileSize

private void checkFileSize()
                    throws IOException,
                           JXRException

Throws:

IOException

JXRException

checkHeaderLength

private void checkHeaderLength()
                        throws IOException,
                               JXRException

Throws:

IOException

JXRException

checkFileStructureVersion

private void checkFileStructureVersion()
                                throws IOException,
                                       JXRException

Throws:

IOException

JXRException

checkHeaderBOM

private void checkHeaderBOM()
                     throws IOException,
                            JXRException

Throws:

IOException

JXRException

checkIfValidJpegXr

private void checkIfValidJpegXr()
                         throws IOException,
                                JXRException

Throws:

IOException

JXRException

calculateIFDOffset

private void calculateIFDOffset()
                         throws IOException,
                                JXRException

Throws:

IOException

JXRException

close

public void close()
           throws IOException

Overrides:

close in class Parser

Throws:

IOException