org.geotools.imageio.netcdf

Class NetCDFImageReader

Object

ImageReader

GeoSpatialImageReader

NetCDFImageReader

All Implemented Interfaces:

FileSetManager

public class NetCDFImageReader
extends GeoSpatialImageReader
implements FileSetManager

Base implementation for NetCDF-CF image flat reader. Pixels are assumed organized according the COARDS convention (a precursor of CF Metadata conventions), i.e. in (t,z,y,x) order, where x varies faster. The image is created from the two last dimensions (x,y). Each ImageIndex corresponds to a 2D-slice of NetCDF. NetCDFImageReader is a ImageReader able to create RenderedImage from NetCDF-CF sources.

Author:

Alessio Fabiani, GeoSolutions, Simone Giannecchini, GeoSolutions

Field Summary

Fields inherited from class GeoSpatialImageReader

file, numImages

Fields inherited from class ImageReader

availableLocales, ignoreMetadata, input, locale, minIndex, originatingProvider, progressListeners, seekForwardOnly, updateListeners, warningListeners, warningLocales

Constructor Summary

Constructors

Constructor and Description
NetCDFImageReader(ImageReaderSpi originatingProvider)

Method Summary

Modifier and Type	Method and Description
void	addFile(String filePath) Add a file to the file set manager
void	dispose()
protected static void	flipVertically(ImageReadParam param, int srcHeight, Rectangle srcRegion)
protected VariableAdapter	getCoverageDescriptor(int imageIndex) Return the VariableWrapper related to that imageIndex
VariableAdapter	getCoverageDescriptor(Name name)
List<Name>	getCoveragesNames() Return the name of coverages made available by this provider
int	getCoveragesNumber() The number of coverages made available by this provider.
int	getHeight(int imageIndex)
RasterLayerRequest	getImageMosaicRequest()
Iterator<ImageTypeSpecifier>	getImageTypes(int imageIndex)
SimpleFeatureType	getIndexSchema(Name coverageName, CoordinateSystem cs)
SimpleFeatureType	getIndexSchema(Name coverageName, CoordinateSystem coordinateSystem, boolean isShared)
Slice2DIndex	getSlice2DIndex(int imageIndex) Return the Slice2DIndex associated to the specified imageIndex
Variable	getVariableByName(String varName) Get a Variable by name.
int	getWidth(int imageIndex)
protected int	initIndex() Index Initialization. store indexing information.
List<String>	list() Return the list of all the files currently added to the manager
protected IIOException	netcdfFailure(Exception e) Wraps a generic exception into a IIOException.
void	purge() Remove all the files from the manager (An implementation may also physically remove all the files)
BufferedImage	read(int imageIndex, ImageReadParam param)
void	removeFile(String filePath) Remove a file from the manager (An implementation may also physically remove the file)
void	reset() Reset the status of this reader
void	setInput(Object input, boolean seekForwardOnly, boolean ignoreMetadata)
protected void	setNumImages(int numImages)
void	setRasterLayerRequest(RasterLayerRequest request)

Methods inherited from class GeoSpatialImageReader

checkImageIndex, finalize, getAuxiliaryDatastorePath, getAuxiliaryFilesPath, getCatalog, getImageIndex, getImageMetadata, getNumImages, getStreamMetadata, initCatalog, initCatalog, setAuxiliaryDatastorePath, setAuxiliaryFilesPath, setCatalog

Methods inherited from class ImageReader

abort, abortRequested, addIIOReadProgressListener, addIIOReadUpdateListener, addIIOReadWarningListener, canReadRaster, checkReadParamBandSettings, clearAbortRequest, computeRegions, getAspectRatio, getAvailableLocales, getDefaultReadParam, getDestination, getFormatName, getImageMetadata, getInput, getLocale, getMinIndex, getNumThumbnails, getOriginatingProvider, getRawImageType, getSourceRegion, getStreamMetadata, getThumbnailHeight, getThumbnailWidth, getTileGridXOffset, getTileGridYOffset, getTileHeight, getTileWidth, hasThumbnails, isIgnoringMetadata, isImageTiled, isRandomAccessEasy, isSeekForwardOnly, processImageComplete, processImageProgress, processImageStarted, processImageUpdate, processPassComplete, processPassStarted, processReadAborted, processSequenceComplete, processSequenceStarted, processThumbnailComplete, processThumbnailPassComplete, processThumbnailPassStarted, processThumbnailProgress, processThumbnailStarted, processThumbnailUpdate, processWarningOccurred, processWarningOccurred, read, readAll, readAll, readAsRenderedImage, readerSupportsThumbnails, readRaster, readThumbnail, readTile, readTileRaster, removeAllIIOReadProgressListeners, removeAllIIOReadUpdateListeners, removeAllIIOReadWarningListeners, removeIIOReadProgressListener, removeIIOReadUpdateListener, removeIIOReadWarningListener, setInput, setInput, setLocale

Methods inherited from class Object

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

Constructor Detail

NetCDFImageReader

public NetCDFImageReader(ImageReaderSpi originatingProvider)

Method Detail

setRasterLayerRequest

public void setRasterLayerRequest(RasterLayerRequest request)

getImageMosaicRequest

public RasterLayerRequest getImageMosaicRequest()

getCoveragesNames

public List<Name> getCoveragesNames()

Description copied from class: GeoSpatialImageReader

Return the name of coverages made available by this provider

Specified by:

getCoveragesNames in class GeoSpatialImageReader

getCoveragesNumber

public int getCoveragesNumber()

Description copied from class: GeoSpatialImageReader

The number of coverages made available by this provider.

Specified by:

getCoveragesNumber in class GeoSpatialImageReader

setNumImages

protected void setNumImages(int numImages)

getHeight

public int getHeight(int imageIndex)
              throws IOException

Specified by:

getHeight in class ImageReader

Throws:

IOException

getImageTypes

public Iterator<ImageTypeSpecifier> getImageTypes(int imageIndex)
                                           throws IOException

Specified by:

getImageTypes in class ImageReader

Throws:

IOException

getWidth

public int getWidth(int imageIndex)
             throws IOException

Specified by:

getWidth in class ImageReader

Throws:

IOException

getVariableByName

public Variable getVariableByName(String varName)

Get a Variable by name.

Parameters:

varName - the name of the Variable to pick.

Returns:

the variable or null.

reset

public void reset()

Reset the status of this reader

Overrides:

reset in class ImageReader

setInput

public void setInput(Object input,
                     boolean seekForwardOnly,
                     boolean ignoreMetadata)

Overrides:

setInput in class ImageReader

initIndex

protected int initIndex()
                 throws InvalidRangeException,
                        IOException

Index Initialization. store indexing information.

Returns:

Throws:

InvalidRangeException

IOException

dispose

public void dispose()

Overrides:

dispose in class GeoSpatialImageReader

netcdfFailure

protected IIOException netcdfFailure(Exception e)
                              throws IOException

Wraps a generic exception into a IIOException.

Throws:

IOException

getSlice2DIndex

public Slice2DIndex getSlice2DIndex(int imageIndex)
                             throws IOException

Return the Slice2DIndex associated to the specified imageIndex

Parameters:

imageIndex -

Returns:

Throws:

IOException

getCoverageDescriptor

protected VariableAdapter getCoverageDescriptor(int imageIndex)

Return the VariableWrapper related to that imageIndex

Parameters:

imageIndex -

Returns:

getCoverageDescriptor

public VariableAdapter getCoverageDescriptor(Name name)

Specified by:

getCoverageDescriptor in class GeoSpatialImageReader

Returns:

read

public BufferedImage read(int imageIndex,
                          ImageReadParam param)
                   throws IOException

Specified by:

read in class ImageReader

Throws:

IOException

See Also:

ImageReader.read(int, javax.imageio.ImageReadParam)

flipVertically

protected static void flipVertically(ImageReadParam param,
                                     int srcHeight,
                                     Rectangle srcRegion)

getIndexSchema

public SimpleFeatureType getIndexSchema(Name coverageName,
                                        CoordinateSystem cs)
                                 throws Exception

Throws:

Exception

getIndexSchema

public SimpleFeatureType getIndexSchema(Name coverageName,
                                        CoordinateSystem coordinateSystem,
                                        boolean isShared)
                                 throws Exception

Throws:

Exception

addFile

public void addFile(String filePath)

Description copied from interface: FileSetManager

Add a file to the file set manager

Specified by:

addFile in interface FileSetManager

list

public List<String> list()

Description copied from interface: FileSetManager

Return the list of all the files currently added to the manager

Specified by:

list in interface FileSetManager

removeFile

public void removeFile(String filePath)

Description copied from interface: FileSetManager

Remove a file from the manager (An implementation may also physically remove the file)

Specified by:

removeFile in interface FileSetManager

purge

public void purge()

Description copied from interface: FileSetManager

Remove all the files from the manager (An implementation may also physically remove all the files)

Specified by:

purge in interface FileSetManager