Package gov.nih.mipav.model.file

Class MetadataExtractor.JpegDhtReader

java.lang.Object

gov.nih.mipav.model.file.MetadataExtractor.JpegDhtReader

All Implemented Interfaces:

MetadataExtractor.JpegSegmentMetadataReader

Enclosing class:

MetadataExtractor

public class MetadataExtractor.JpegDhtReader
extends Object
implements MetadataExtractor.JpegSegmentMetadataReader

Reader for JPEG Huffman tables, found in the DHT JPEG segment.

Author:

Nadahar

Constructor Summary

Constructors

Constructor	Description
JpegDhtReader()

Method Summary

Modifier and Type	Method	Description
void	extract(MetadataExtractor.SequentialReader reader, MetadataExtractor.Metadata metadata)	Performs the DHT tables extraction, adding found tables to the specified instance of MetadataExtractor.Metadata.
private byte[]	getBytes(MetadataExtractor.SequentialReader reader, int count)
Iterable<MetadataExtractor.JpegSegmentType>	getSegmentTypes()	Gets the set of JPEG segment types that this reader is interested in.
void	readJpegSegments(Iterable<byte[]> segments, MetadataExtractor.Metadata metadata, MetadataExtractor.JpegSegmentType segmentType)	Extracts metadata from all instances of a particular JPEG segment type.

Methods inherited from class java.lang.Object

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

Constructor Details

JpegDhtReader

public JpegDhtReader()

Method Details

getSegmentTypes

public Iterable<MetadataExtractor.JpegSegmentType> getSegmentTypes()

Description copied from interface: MetadataExtractor.JpegSegmentMetadataReader

Gets the set of JPEG segment types that this reader is interested in.

Specified by:

getSegmentTypes in interface MetadataExtractor.JpegSegmentMetadataReader

readJpegSegments

public void readJpegSegments(Iterable<byte[]> segments,
 MetadataExtractor.Metadata metadata,
 MetadataExtractor.JpegSegmentType segmentType)

Description copied from interface: MetadataExtractor.JpegSegmentMetadataReader

Extracts metadata from all instances of a particular JPEG segment type.

Specified by:

readJpegSegments in interface MetadataExtractor.JpegSegmentMetadataReader

Parameters:

segments - A sequence of byte arrays from which the metadata should be extracted. These are in the order encountered in the original file.

metadata - The MetadataExtractor.Metadata object into which extracted values should be merged.

segmentType - The MetadataExtractor.JpegSegmentType being read.

extract

public void extract(MetadataExtractor.SequentialReader reader,
 MetadataExtractor.Metadata metadata)

Performs the DHT tables extraction, adding found tables to the specified instance of MetadataExtractor.Metadata.

getBytes

private byte[] getBytes(MetadataExtractor.SequentialReader reader,
 int count)
                 throws IOException

Throws:

IOException