cdac.medinfo.sdk.dcm30_04.dicomreaderwriters

Class DicomFileReader

java.lang.Object

cdac.medinfo.sdk.dcm30_04.dicomreaderwriters.DicomFileReader

All Implemented Interfaces:

IDicomFileReader

public class DicomFileReader
extends java.lang.Object
implements IDicomFileReader

This class will be used as a file reader capable of reading part-10 complaint dicom file

Constructor Summary

Constructors

Constructor and Description
DicomFileReader(IDicomStream objIDicomStream_) This constructor accepts DicomStream in which file is already set .
DicomFileReader(java.lang.String strFileNameWithPath) This constructor creates a DicomFileReader by accepting file name with complete path

Method Summary

Methods

Modifier and Type	Method and Description
byte[]	getDataContents() This method returns the DataSet present in the dicom file.
IDicomFileHeader	getDicomFileHeader() This method returns the Dicom File Header from the file attached to it, if this method is called after parsing the file it returns the Dicom File Header read while parsing the file.
int	getHeaderLength() This method returns the header length if present otherwise retuns 0.
int	getPreamble(byte[] preamble) This method checks whether the preamble is present, and if present reads the preamble from the stream .
IDicomFileHeader	readHeader() This method returns the DicomFileHeader from the DicomFileReader When called after parsing the Dicom File having DicomFileHeader, the user can get the populated DicomFileHeader class object from the reader.

Methods inherited from class java.lang.Object

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

Constructor Detail

DicomFileReader

public DicomFileReader(java.lang.String strFileNameWithPath)
                throws java.io.IOException

This constructor creates a DicomFileReader by accepting file name with complete path

Parameters:

strFileNameWithPath - : The file with complete path.

Throws:

java.io.IOException - Signals that an I/O exception of some sort has occurred.

DicomFileReader

public DicomFileReader(IDicomStream objIDicomStream_)

This constructor accepts DicomStream in which file is already set .

Parameters:

objIDicomStream_ - : The DicomStream in which file is already set.

Method Detail

getPreamble

public int getPreamble(byte[] preamble)
                throws java.io.IOException

This method checks whether the preamble is present, and if present reads the preamble from the stream .

Specified by:

getPreamble in interface IDicomFileReader

Parameters:

preamble - Preamble in byte array.

Returns:

int - returns 1 on success.

Throws:

java.io.IOException - Signals that an I/O exception of some sort has occurred.

readHeader

public IDicomFileHeader readHeader()
                            throws InvalidHeaderException,
                                   java.io.IOException

This method returns the DicomFileHeader from the DicomFileReader When called after parsing the Dicom File having DicomFileHeader, the user can get the populated DicomFileHeader class object from the reader.

Specified by:

readHeader in interface IDicomFileReader

Returns:

IDicomFileHeader instance of DicomFileHeader on presence of DicomFileHeader otherwise null.

Throws:

InvalidHeaderException - Signals that Dicom File Header is Corrupted.

java.io.IOException - Signals that an I/O exception of some sort has occurred.

getDicomFileHeader

public IDicomFileHeader getDicomFileHeader()
                                    throws java.io.IOException

This method returns the Dicom File Header from the file attached to it, if this method is called after parsing the file it returns the Dicom File Header read while parsing the file. Note: if this method is called in between reading the stream then unexpected behavior.

Specified by:

getDicomFileHeader in interface IDicomFileReader

Returns:

IDicomFileHeader instance of DicomFileHeader.

Throws:

java.io.IOException - Signals that an I/O exception of some sort has occurred.

getDataContents

public byte[] getDataContents()
                       throws java.io.IOException

This method returns the DataSet present in the dicom file.

Specified by:

getDataContents in interface IDicomFileReader

Returns:

byte[] - byte array of data content.

Throws:

java.io.IOException - Signals that an I/O exception of some sort has occurred.

getHeaderLength

public int getHeaderLength()
                    throws java.io.IOException

This method returns the header length if present otherwise retuns 0.

Specified by:

getHeaderLength in interface IDicomFileReader

Returns:

int- calculated length of Dicom File Header.

Throws:

java.io.IOException - Signals that an I/O exception of some sort has occurred.