org.deegree.coverage.raster.io.jai
Class JAIRasterDataReader

java.lang.Object
  org.deegree.coverage.raster.io.jai.JAIRasterDataReader

All Implemented Interfaces:

RasterDataReader

public class JAIRasterDataReader
extends Object
implements RasterDataReader

This class implements a simple reader for raster files. It is based on Java Advanced Imaging and it returns RasterData objects. rb: This class needs heavy refactoring, maybe enable tiling for supporting files, than streams would not work any more, but using the renderOp would.

Version:

$Revision:10872 $, $Date:2008-04-01 15:41:48 +0200 (Tue, 01 Apr 2008) $

Author:

Oliver Tonnhofer, last edited by: $Author:otonnhofer $

Constructor Summary

JAIRasterDataReader(File file, RasterIOOptions options)
Create a JAIRasterReader for given file

JAIRasterDataReader(InputStream stream, RasterIOOptions options)
Create a JAIRasterReader for given stream

Method Summary

void	close() Removes the internal references to the loaded raster to allow garbage collection of the raster.
void	dispose()
File	file()
int	getColumns() Retruns the width of the raster associated with the reader
RasterDataInfo	getRasterDataInfo()
int	getRows() Retruns the height of the raster associated with the reader
ByteBufferRasterData	read() Reads data and returns a new RasterData object

Methods inherited from class java.lang.Object

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

Constructor Detail

JAIRasterDataReader

public JAIRasterDataReader(File file,
                           RasterIOOptions options)

Create a JAIRasterReader for given file

Parameters:

file - file to read

options - holding information

JAIRasterDataReader

public JAIRasterDataReader(InputStream stream,
                           RasterIOOptions options)

Create a JAIRasterReader for given stream

Parameters:

stream - stream to read

options - holding information

Method Detail

read

public ByteBufferRasterData read()

Reads data and returns a new RasterData object

Specified by:

read in interface RasterDataReader

Returns:

new RasterData

getColumns

public int getColumns()

Retruns the width of the raster associated with the reader

Returns:

raster width

getRows

public int getRows()

Retruns the height of the raster associated with the reader

Returns:

raster height

close

public void close()

Removes the internal references to the loaded raster to allow garbage collection of the raster.

Specified by:

close in interface RasterDataReader

file

public File file()

Returns:

the file containing the data.

dispose

public void dispose()

getRasterDataInfo

public RasterDataInfo getRasterDataInfo()

Returns:

the raster data info.