org.geotools.gce.imagemosaic

Class GranuleDescriptor

Object

GranuleDescriptor

public class GranuleDescriptor
extends Object

A granuleDescriptor is a single piece of the mosaic, with its own overviews and everything.

This class is responsible for caching the various size of the different levels of each single granuleDescriptor since computing them each time is expensive (opening a file, looking for a reader, parsing metadata,etc...).

Right now we are making the assumption that a single granuleDescriptor is made a by a single file with embedded overviews, either explicit or intrinsic through wavelets like MrSID, ECW or JPEG2000.

Since:

2.5.5

Author:

Simone Giannecchini, GeoSolutions S.A.S., Stefan Alfons Krueger (alfonx), Wikisquare.de : Support for jar:file:foo.jar/bar.properties URLs

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	GranuleDescriptor.GranuleLoadingResult Simple placeholder class to store the result of a Granule Loading which comprises of a raster as well as a ROIShape for its footprint.

Field Summary

Fields

Modifier and Type	Field and Description
static Hints	EXCLUDE_MOSAIC Hints to use for avoiding to search for the ImageMosaic format
static double	READ_THRESHOLD Minimum portion of a single pixel the code is going to read before giving up on the read, this is used to avoid reading granules that touch the reading area without actually contributing anything to the output

Constructor Summary

Constructors

Constructor and Description
GranuleDescriptor(SimpleFeature feature, AbstractGridFormat suggestedFormat, ImageReaderSpi suggestedSPI, ImageInputStreamSpi suggestedIsSPI, PathType pathType, String locationAttribute, String parentLocation, boolean heterogeneousGranules)
GranuleDescriptor(SimpleFeature feature, AbstractGridFormat suggestedFormat, ImageReaderSpi suggestedSPI, ImageInputStreamSpi suggestedIsSPI, PathType pathType, String locationAttribute, String parentLocation, boolean heterogeneousGranules, Hints hints)
GranuleDescriptor(SimpleFeature feature, AbstractGridFormat suggestedFormat, ImageReaderSpi suggestedSPI, ImageInputStreamSpi suggestedIsSPI, PathType pathType, String locationAttribute, String parentLocation, MultiLevelROI roiProvider, boolean heterogeneousGranules, Hints hints) Constructor for the GranuleDescriptor
GranuleDescriptor(SimpleFeature feature, ImageReaderSpi suggestedSPI, AbstractGridFormat suggestedFormat, ImageInputStreamSpi suggestedIsSPI, PathType pathType, String locationAttribute, String parentLocation)
GranuleDescriptor(SimpleFeature feature, ImageReaderSpi suggestedSPI, PathType pathType, AbstractGridFormat suggestedFormat, ImageInputStreamSpi suggestedIsSPI, String locationAttribute, String parentLocation, MultiLevelROI roiProvider) Constructor for the GranuleDescriptor assuming it doesn't belong to an heterogeneous granules set.
GranuleDescriptor(String granuleLocation, BoundingBox granuleBBox, AbstractGridFormat suggestedFormat, ImageReaderSpi suggestedSPI, ImageInputStreamSpi suggestedIsSPI, MultiLevelROI roiProvider)
GranuleDescriptor(String granuleLocation, BoundingBox granuleBBox, AbstractGridFormat suggestedFormat, ImageReaderSpi suggestedSPI, ImageInputStreamSpi suggestedIsSPI, MultiLevelROI roiProvider, boolean heterogeneousGranules)
GranuleDescriptor(String granuleLocation, BoundingBox granuleBBox, AbstractGridFormat suggestedFormat, ImageReaderSpi suggestedSPI, ImageInputStreamSpi suggestedIsSPI, MultiLevelROI roiProvider, int maxDecimationFactor)
GranuleDescriptor(String granuleLocation, BoundingBox granuleBBox, AbstractGridFormat suggestedFormat, ImageReaderSpi suggestedSPI, ImageInputStreamSpi suggestedIsSPI, MultiLevelROI roiProvider, int maxDecimationFactor, boolean heterogeneousGranules)
GranuleDescriptor(String granuleLocation, BoundingBox granuleBBox, AbstractGridFormat suggestedFormat, ImageReaderSpi suggestedSPI, ImageInputStreamSpi suggestedIsSPI, MultiLevelROI roiProvider, int maxDecimationFactor, boolean heterogeneousGranules, boolean handleArtifactsFiltering)
GranuleDescriptor(String granuleLocation, BoundingBox granuleBBox, AbstractGridFormat suggestedFormat, ImageReaderSpi suggestedSPI, ImageInputStreamSpi suggestedIsSPI, MultiLevelROI roiProvider, int maxDecimationFactor, boolean heterogeneousGranules, boolean handleArtifactsFiltering, Hints hints)

Method Summary

Modifier and Type	Method and Description
Geometry	getFootprint()
BoundingBox	getGranuleBBOX()
GeneralEnvelope	getGranuleEnvelope()
URL	getGranuleUrl()
SimpleFeature	getOriginator()
OverviewsController	getOverviewsController()
AbstractGridCoverage2DReader	getReader() Returns a new instance of the AbstractGridCoverage2DReader associated with this descriptor.
MultiLevelROI	getRoiProvider()
protected void	init(BoundingBox granuleBBOX, URL granuleUrl, AbstractGridFormat suggestedFormat, ImageReaderSpi suggestedSPI, ImageInputStreamSpi suggestedIsSPI, MultiLevelROI roiProvider, boolean heterogeneousGranules, boolean handleArtifactsFiltering, Hints hints)
GranuleDescriptor.GranuleLoadingResult	loadRaster(ImageReadParam imageReadParameters, int index, ReferencedEnvelope cropBBox, MathTransform2D mosaicWorldToGrid, RasterLayerRequest request, Hints hints) Load a specified a raster as a portion of the granule describe by this GranuleDescriptor.
void	setGranuleEnvelope(GeneralEnvelope granuleEnvelope)
String	toString()

Methods inherited from class Object

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

Field Detail

EXCLUDE_MOSAIC

public static final Hints EXCLUDE_MOSAIC

Hints to use for avoiding to search for the ImageMosaic format

READ_THRESHOLD

public static final double READ_THRESHOLD

Minimum portion of a single pixel the code is going to read before giving up on the read, this is used to avoid reading granules that touch the reading area without actually contributing anything to the output

Constructor Detail

GranuleDescriptor

public GranuleDescriptor(String granuleLocation,
                         BoundingBox granuleBBox,
                         AbstractGridFormat suggestedFormat,
                         ImageReaderSpi suggestedSPI,
                         ImageInputStreamSpi suggestedIsSPI,
                         MultiLevelROI roiProvider)

GranuleDescriptor

public GranuleDescriptor(String granuleLocation,
                         BoundingBox granuleBBox,
                         AbstractGridFormat suggestedFormat,
                         ImageReaderSpi suggestedSPI,
                         ImageInputStreamSpi suggestedIsSPI,
                         MultiLevelROI roiProvider,
                         boolean heterogeneousGranules)

GranuleDescriptor

public GranuleDescriptor(String granuleLocation,
                         BoundingBox granuleBBox,
                         AbstractGridFormat suggestedFormat,
                         ImageReaderSpi suggestedSPI,
                         ImageInputStreamSpi suggestedIsSPI,
                         MultiLevelROI roiProvider,
                         int maxDecimationFactor)

GranuleDescriptor

public GranuleDescriptor(String granuleLocation,
                         BoundingBox granuleBBox,
                         AbstractGridFormat suggestedFormat,
                         ImageReaderSpi suggestedSPI,
                         ImageInputStreamSpi suggestedIsSPI,
                         MultiLevelROI roiProvider,
                         int maxDecimationFactor,
                         boolean heterogeneousGranules)

GranuleDescriptor

public GranuleDescriptor(String granuleLocation,
                         BoundingBox granuleBBox,
                         AbstractGridFormat suggestedFormat,
                         ImageReaderSpi suggestedSPI,
                         ImageInputStreamSpi suggestedIsSPI,
                         MultiLevelROI roiProvider,
                         int maxDecimationFactor,
                         boolean heterogeneousGranules,
                         boolean handleArtifactsFiltering)

GranuleDescriptor

public GranuleDescriptor(String granuleLocation,
                         BoundingBox granuleBBox,
                         AbstractGridFormat suggestedFormat,
                         ImageReaderSpi suggestedSPI,
                         ImageInputStreamSpi suggestedIsSPI,
                         MultiLevelROI roiProvider,
                         int maxDecimationFactor,
                         boolean heterogeneousGranules,
                         boolean handleArtifactsFiltering,
                         Hints hints)

GranuleDescriptor

public GranuleDescriptor(SimpleFeature feature,
                         ImageReaderSpi suggestedSPI,
                         AbstractGridFormat suggestedFormat,
                         ImageInputStreamSpi suggestedIsSPI,
                         PathType pathType,
                         String locationAttribute,
                         String parentLocation)

GranuleDescriptor

public GranuleDescriptor(SimpleFeature feature,
                         AbstractGridFormat suggestedFormat,
                         ImageReaderSpi suggestedSPI,
                         ImageInputStreamSpi suggestedIsSPI,
                         PathType pathType,
                         String locationAttribute,
                         String parentLocation,
                         boolean heterogeneousGranules,
                         Hints hints)

GranuleDescriptor

public GranuleDescriptor(SimpleFeature feature,
                         AbstractGridFormat suggestedFormat,
                         ImageReaderSpi suggestedSPI,
                         ImageInputStreamSpi suggestedIsSPI,
                         PathType pathType,
                         String locationAttribute,
                         String parentLocation,
                         boolean heterogeneousGranules)

GranuleDescriptor

public GranuleDescriptor(SimpleFeature feature,
                         ImageReaderSpi suggestedSPI,
                         PathType pathType,
                         AbstractGridFormat suggestedFormat,
                         ImageInputStreamSpi suggestedIsSPI,
                         String locationAttribute,
                         String parentLocation,
                         MultiLevelROI roiProvider)

Constructor for the GranuleDescriptor assuming it doesn't belong to an heterogeneous granules set.

Parameters:

feature - a SimpleFeature referring to that granule

suggestedSPI - the suggested ImageReaderSpi to be used to get a reader to handle this granule.

pathType - A PathType identifying if the granule location should be resolved as a relative or an absolute path.

locationAttribute - the attribute containing the granule location.

parentLocation - the location of the parent of that granule.

GranuleDescriptor

public GranuleDescriptor(SimpleFeature feature,
                         AbstractGridFormat suggestedFormat,
                         ImageReaderSpi suggestedSPI,
                         ImageInputStreamSpi suggestedIsSPI,
                         PathType pathType,
                         String locationAttribute,
                         String parentLocation,
                         MultiLevelROI roiProvider,
                         boolean heterogeneousGranules,
                         Hints hints)

Constructor for the GranuleDescriptor

Parameters:

feature - a SimpleFeature referring to that granule

suggestedSPI - the suggested ImageReaderSpi to be used to get a reader to handle this granule.

pathType - A PathType identifying if the granule location should be resolved as a relative or an absolute path.

locationAttribute - the attribute containing the granule location.

parentLocation - the location of the parent of that granule.

heterogeneousGranules - if true, this granule belongs to a set of heterogeneous granules

Method Detail

getGranuleEnvelope

public GeneralEnvelope getGranuleEnvelope()

setGranuleEnvelope

public void setGranuleEnvelope(GeneralEnvelope granuleEnvelope)

init

protected void init(BoundingBox granuleBBOX,
                    URL granuleUrl,
                    AbstractGridFormat suggestedFormat,
                    ImageReaderSpi suggestedSPI,
                    ImageInputStreamSpi suggestedIsSPI,
                    MultiLevelROI roiProvider,
                    boolean heterogeneousGranules,
                    boolean handleArtifactsFiltering,
                    Hints hints)

getOverviewsController

public OverviewsController getOverviewsController()

loadRaster

public GranuleDescriptor.GranuleLoadingResult loadRaster(ImageReadParam imageReadParameters,
                                                         int index,
                                                         ReferencedEnvelope cropBBox,
                                                         MathTransform2D mosaicWorldToGrid,
                                                         RasterLayerRequest request,
                                                         Hints hints)
                                                  throws IOException

Load a specified a raster as a portion of the granule describe by this GranuleDescriptor.

Parameters:

imageReadParameters - the ImageReadParam to use for reading.

index - the index to use for the ImageReader.

cropBBox - the bbox to use for cropping.

mosaicWorldToGrid - the cropping grid to world transform.

request - the incoming request to satisfy.

hints - Hints to be used for creating this raster.

Returns:

a specified a raster as a portion of the granule describe by this GranuleDescriptor.

Throws:

IOException - in case an error occurs.

toString

public String toString()

Overrides:

toString in class Object

getGranuleBBOX

public BoundingBox getGranuleBBOX()

getGranuleUrl

public URL getGranuleUrl()

getOriginator

public SimpleFeature getOriginator()

getFootprint

public Geometry getFootprint()

getReader

public AbstractGridCoverage2DReader getReader()

Returns a new instance of the AbstractGridCoverage2DReader associated with this descriptor. It's the responsibility of the caller to dispose of it.

getRoiProvider

public MultiLevelROI getRoiProvider()

Returns: