Class TIFFReader

java.lang.Object

com.twelvemonkeys.imageio.metadata.MetadataReader

com.twelvemonkeys.imageio.metadata.tiff.TIFFReader

public final class TIFFReader
extends MetadataReader

TIFFReader

Version:

$Id: TIFFReader.java,v 1.0 Nov 13, 2009 5:42:51 PM haraldk Exp$

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	TIFFReader.HexDump	///////////////////

Field Summary

Fields

Modifier and Type	Field	Description
(package private) static final boolean	DEBUG
private long	inputLength
private boolean	longOffsets
private int	offsetSize
private final Set<Long>	parsedIFDs
private static final Map<Integer, Collection<Integer>>	VALID_SUB_IFDS
private static final Collection<Integer>	VALID_TOP_LEVEL_IFDS

Constructor Summary

Constructors

Constructor	Description
TIFFReader()

Method Summary

Modifier and Type	Method	Description
private int	assertIntCount(long count)
private static Rational	createSafeRational(long numerator, long denominator)
private static Map<Integer, Collection<Integer>>	createSubIFDMap()
private long[]	getPointerOffsets(Entry entry)
private boolean	isValidLengthAtOffset(ImageInputStream input, long offset, long valueLength)
private boolean	isValidOffset(ImageInputStream input, long pos)
private boolean	isValidType(short type)
static void	main(String[] args)
Directory	read(ImageInputStream input)
private TIFFEntry	readEntry(ImageInputStream pInput)
private long	readEntryCount(ImageInputStream pInput)
private IFD	readIFD(ImageInputStream pInput, long pOffset, Collection<Integer> subIFDIds)
private TIFFDirectory	readLinkedIFDs(ImageInputStream input)
private long	readOffset(ImageInputStream input)
private void	readSubIFDs(ImageInputStream input, List<TIFFEntry> entries, Collection<Integer> subIFDIds)
private static Object	readValue(ImageInputStream pInput, short pType, int pCount, boolean bigTIFF)
private Object	readValueAt(ImageInputStream input, long offset, long length, short type, int count)
private int	readValueCount(ImageInputStream pInput)
private Object	readValueInLine(ImageInputStream pInput, short pType, int pCount)

Methods inherited from class Object

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

Field Details

DEBUG

static final boolean DEBUG

VALID_TOP_LEVEL_IFDS

private static final Collection<Integer> VALID_TOP_LEVEL_IFDS

VALID_SUB_IFDS

private static final Map<Integer, Collection<Integer>> VALID_SUB_IFDS

parsedIFDs

private final Set<Long> parsedIFDs

inputLength

private long inputLength

longOffsets

private boolean longOffsets

offsetSize

private int offsetSize

Constructor Details

TIFFReader

public TIFFReader()

Method Details

createSubIFDMap

private static Map<Integer, Collection<Integer>> createSubIFDMap()

read

public Directory read(ImageInputStream input)
               throws IOException

Specified by:

read in class MetadataReader

Throws:

IOException

readLinkedIFDs

private TIFFDirectory readLinkedIFDs(ImageInputStream input)
                              throws IOException

Throws:

IOException

readOffset

private long readOffset(ImageInputStream input)
                 throws IOException

Throws:

IOException

readIFD

private IFD readIFD(ImageInputStream pInput,
 long pOffset,
 Collection<Integer> subIFDIds)
             throws IOException

Throws:

IOException

readEntryCount

private long readEntryCount(ImageInputStream pInput)
                     throws IOException

Throws:

IOException

readSubIFDs

private void readSubIFDs(ImageInputStream input,
 List<TIFFEntry> entries,
 Collection<Integer> subIFDIds)
                  throws IOException

Throws:

IOException

getPointerOffsets

private long[] getPointerOffsets(Entry entry)
                          throws IIOException

Throws:

IIOException

readEntry

private TIFFEntry readEntry(ImageInputStream pInput)
                     throws IOException

Throws:

IOException

isValidType

private boolean isValidType(short type)

readValueCount

private int readValueCount(ImageInputStream pInput)
                    throws IOException

Throws:

IOException

assertIntCount

private int assertIntCount(long count)
                    throws IOException

Throws:

IOException

isValidOffset

private boolean isValidOffset(ImageInputStream input,
 long pos)
                       throws IOException

Throws:

IOException

isValidLengthAtOffset

private boolean isValidLengthAtOffset(ImageInputStream input,
 long offset,
 long valueLength)
                               throws IOException

Throws:

IOException

readValueAt

private Object readValueAt(ImageInputStream input,
 long offset,
 long length,
 short type,
 int count)
                    throws IOException

Throws:

IOException

readValueInLine

private Object readValueInLine(ImageInputStream pInput,
 short pType,
 int pCount)
                        throws IOException

Throws:

IOException

readValue

private static Object readValue(ImageInputStream pInput,
 short pType,
 int pCount,
 boolean bigTIFF)
                         throws IOException

Throws:

IOException

createSafeRational

private static Rational createSafeRational(long numerator,
 long denominator)

main

public static void main(String[] args)
                 throws IOException

Throws:

IOException