org.gvsig.raster.lib.buffer.impl

Class DefaultBufferManager

java.lang.Object

org.gvsig.raster.lib.buffer.impl.DefaultBufferManager

All Implemented Interfaces:

BufferManager, OperationManager

public class DefaultBufferManager
extends java.lang.Object
implements BufferManager, OperationManager

Field Summary

Fields inherited from interface org.gvsig.raster.lib.buffer.api.BufferManager

TYPE_BYTE, TYPE_DOUBLE, TYPE_FLOAT, TYPE_INT, TYPE_SHORT, TYPE_UNDEFINED, TYPE_USHORT

Constructor Summary

Constructors

Constructor and Description
DefaultBufferManager()

Method Summary

Modifier and Type	Method and Description
java.lang.Object	coerce(int dataType, java.lang.Object value)
BandPageManager	createAwtRasterBandPageManager(java.awt.image.Raster img, int band)
java.util.List<PageManager>	createAwtRasterBandPageManagerList(java.awt.image.Raster img)
Band	createBand(int dataType, int rows, int columns, NoData noData, PageManager pageManager) Creates a Band.
BandInfo	createBandInfo(int band, java.lang.String name, java.lang.String description, int dataType, java.util.List<java.util.Map.Entry<java.lang.Object,java.lang.Object>> values) Creates BandInfo with information about one band.
Buffer	createBuffer(Buffer buffer, boolean paginated) Creates a buffer from another buffer.
Buffer	createBuffer(int rows, int columns, int[] bandDataTypes, IProjection projection) Creates a memory buffer.
Buffer	createBuffer(int rows, int columns, int[] bandDataTypes, NoData[] bandNoData, IProjection projection) Creates a memory buffer.
Buffer	createBuffer(int rows, int columns, int[] bandDataTypes, NoData[] bandNoData, IProjection projection, Envelope envelope) Creates a memory buffer.
Buffer	createBuffer(int rows, int columns, int[] bandDataTypes, NoData[] bandNoData, IProjection projection, Envelope envelope, java.util.List<PageManager> pageManagers) Creates a buffer.
BufferDimensions	createBufferDimensions(int rows, int columns, Envelope envelope)
Buffer	createBufferFromAwtRaster(java.awt.image.Raster raster, IProjection projection, Envelope envelope)
Band	createClippedBand(Buffer buffer, Band band) Creates a clipping of a band.
Buffer	createClippedBuffer(Buffer buffer, Envelope envelope) Creates a buffer from clipping of a buffer.
Band	createConvertedTypeBand(Buffer buffer, Band band, int type) Create one band from another by changing the type.
Buffer	createConvertedTypeBuffer(Buffer buffer, int type) Create one buffer from another by changing the type.
Kernel	createKernel(double[][] k)
Kernel	createKernel(double[][] k, double divisor)
NoData	createNoData(java.lang.Number value, java.lang.Number defaultValue) Creates a NoData object.
java.util.List<Buffer>	createOneBufferPerBand(Buffer buffer, boolean paginated)
Operation	createOperation(java.lang.String name)
OperationList	createOperationList() Creates a OperationList
OperationListEntry	createOperationListEntry(Operation operation, DynObject parameters) Creates a entry for OperationList
DynObject	createOperationParameters(java.lang.String name)
Buffer	createRGBABuffer(java.awt.image.BufferedImage img, IProjection projection, Envelope envelope) Creates a forced RGBA Buffer from a BufferedImage
Buffer	createRGBBuffer(java.awt.image.BufferedImage img, IProjection projection, Envelope envelope) Creates a forced RGB Buffer from a BufferedImage
BandPageManager	createSimpleBandPageManager(java.io.File file, int rows, int columns, int dataType)
java.util.List<PageManager>	createSimpleBandPageManagerList(java.io.File[] files, int rows, int columns, int[] dataType)
Buffer	execute(SimpleTaskStatus status, java.lang.String name, Buffer buffer, DynObject parameters)
int	getBufferTypeFromAwtRaster(java.awt.image.Raster raster)
java.lang.String	getBufferTypeName(int dataType)
int	getDataTypeSize(int dataType)
java.io.File	getLastFolderUsedToSaveRaster()
java.util.List<OperationFactory>	getOperationFactories()
OperationFactory	getOperationFactory(java.lang.String name)
java.lang.String	getTypeName(int type) Return type's name
void	registerOperationFactory(OperationFactory factory) Register operation factory
void	setLastFolderUsedToSaveRaster(java.io.File folder)

Methods inherited from class java.lang.Object

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

Constructor Detail

DefaultBufferManager

public DefaultBufferManager()

Method Detail

createNoData

public NoData createNoData(java.lang.Number value,
                           java.lang.Number defaultValue)

Description copied from interface: BufferManager

Creates a NoData object.

Specified by:

createNoData in interface BufferManager

Returns:

NoData

createBand

public Band createBand(int dataType,
                       int rows,
                       int columns,
                       NoData noData,
                       PageManager pageManager)
                throws CreateBandTypeException

Description copied from interface: BufferManager

Creates a Band. If PageManager is null, the band will be in memory, otherwise, the band will be paginated using page manager.

Specified by:

createBand in interface BufferManager

Parameters:

dataType - Type of band. Check BufferManager to see what types are available

rows - Band rows

columns - Band columns

noData - NoData of band. If It is null, a undefined NoData will be set.

pageManager - Page manager to paginate band. It page manager is null, band will be in memory.

Returns:

Band A empty band.

Throws:

CreateBandTypeException

See Also:

BufferManager.createNoData(Number, Number), BufferManager#createBandInfo(String, String, List), BufferManager.createSimpleBandPageManager(File, int, int, int)

createBuffer

public Buffer createBuffer(int rows,
                           int columns,
                           int[] bandDataTypes,
                           IProjection projection)
                    throws BufferException

Description copied from interface: BufferManager

Creates a memory buffer.

Specified by:

createBuffer in interface BufferManager

Parameters:

rows - Rows of buffer. All buffer bands will have the same rows as buffer.

columns - Columns of buffer. All buffer bands will have the same columns as buffer.

bandDataTypes - Types of buffer bands, see BufferManager to get types. The length of array indicates number of buffer bands.

projection - Projection of buffer.

Returns:

Buffer

Throws:

BufferException - If there is any problem creating buffer.

createBuffer

public Buffer createBuffer(int rows,
                           int columns,
                           int[] bandDataTypes,
                           NoData[] bandNoData,
                           IProjection projection)
                    throws CreateBufferException

Description copied from interface: BufferManager

Creates a memory buffer.

Specified by:

createBuffer in interface BufferManager

Parameters:

rows - Rows of buffer. All buffer bands will have the same rows as buffer.

columns - Columns of buffer. All buffer bands will have the same columns as buffer.

bandDataTypes - Types of buffer bands, see BufferManager to get types. The length of array indicates number of buffer bands.

bandNoData - NoData of each band. It can be null. If there are bands without NoData object, a undefined NoData will be set.

projection - Projection of buffer.

Returns:

Buffer

Throws:

CreateBufferException

createBuffer

public Buffer createBuffer(int rows,
                           int columns,
                           int[] bandDataTypes,
                           NoData[] bandNoData,
                           IProjection projection,
                           Envelope envelope)
                    throws BufferException

Description copied from interface: BufferManager

Creates a memory buffer.

Specified by:

createBuffer in interface BufferManager

Parameters:

rows - Rows of buffer. All buffer bands will have the same rows as buffer.

columns - Columns of buffer. All buffer bands will have the same columns as buffer.

bandDataTypes - Types of buffer bands, see BufferManager to get types. The length of array indicates number of buffer bands.

bandNoData - NoData of each band. If there are bands without NoData object, a undefined NoData will be set. It can be null.

projection - Projection of buffer.

envelope - Envelope of data. It can be null.

Returns:

Buffer

Throws:

BufferException - If there is any problem creating buffer.

createBuffer

public Buffer createBuffer(int rows,
                           int columns,
                           int[] bandDataTypes,
                           NoData[] bandNoData,
                           IProjection projection,
                           Envelope envelope,
                           java.util.List<PageManager> pageManagers)
                    throws BufferException

Description copied from interface: BufferManager

Creates a buffer. Buffer bands will be paginated using BandPageManager.

Specified by:

createBuffer in interface BufferManager

Parameters:

rows - Rows of buffer. All buffer bands will have the same rows as buffer.

columns - Columns of buffer. All buffer bands will have the same columns as buffer.

bandDataTypes - Types of buffer bands, see BufferManager to get types. The length of array indicates number of buffer bands.

bandNoData - NoData of each band. If there are bands without NoData object, a undefined NoData will be set. It can be null.

projection - Projection of buffer.

envelope - Envelope of data. It can be null.

pageManagers - Page manager list to paginate data bands. If there are bands without page manager, they will be loaded at memory.

Returns:

Buffer

Throws:

BufferException - If there is any problem creating buffer.

createSimpleBandPageManager

public BandPageManager createSimpleBandPageManager(java.io.File file,
                                                   int rows,
                                                   int columns,
                                                   int dataType)
                                            throws java.io.IOException

Specified by:

createSimpleBandPageManager in interface BufferManager

Returns:

BandPageManager

Throws:

java.io.IOException

getDataTypeSize

public int getDataTypeSize(int dataType)

Specified by:

getDataTypeSize in interface BufferManager

Parameters:

dataType - Data tpye

Returns:

Data type size in bytes

createSimpleBandPageManagerList

public java.util.List<PageManager> createSimpleBandPageManagerList(java.io.File[] files,
                                                                   int rows,
                                                                   int columns,
                                                                   int[] dataType)
                                                            throws java.io.IOException

Specified by:

createSimpleBandPageManagerList in interface BufferManager

Returns:

A list of page managers

Throws:

java.io.IOException

createClippedBuffer

public Buffer createClippedBuffer(Buffer buffer,
                                  Envelope envelope)
                           throws BufferException

Description copied from interface: BufferManager

Creates a buffer from clipping of a buffer. The returned clipping will be like a view of the original buffer. It not reserve additional memory. It will only be a walkway to access an area of the buffer.

Specified by:

createClippedBuffer in interface BufferManager

Returns:

a clip buffer

Throws:

BufferException

createConvertedTypeBuffer

public Buffer createConvertedTypeBuffer(Buffer buffer,
                                        int type)
                                 throws BufferException

Description copied from interface: BufferManager

Create one buffer from another by changing the type. The returned buffer will be like a view of the original buffer. It not reserve additional memory.

Specified by:

createConvertedTypeBuffer in interface BufferManager

Returns:

a converted type buffer

Throws:

BufferException

createClippedBand

public Band createClippedBand(Buffer buffer,
                              Band band)
                       throws CreateBandTypeException

Description copied from interface: BufferManager

Creates a clipping of a band. The returned clipping will be like a view of the original band. It not reserve additional memory. It will only be a walkway to access an area of the band.

Specified by:

createClippedBand in interface BufferManager

Returns:

Band

Throws:

CreateBandTypeException

createConvertedTypeBand

public Band createConvertedTypeBand(Buffer buffer,
                                    Band band,
                                    int type)
                             throws BandException

Description copied from interface: BufferManager

Create one band from another by changing the type. The returned clipping will be like a view of the original band. It not reserve additional memory.

Specified by:

createConvertedTypeBand in interface BufferManager

Returns:

Band

Throws:

BandException

createBandInfo

public BandInfo createBandInfo(int band,
                               java.lang.String name,
                               java.lang.String description,
                               int dataType,
                               java.util.List<java.util.Map.Entry<java.lang.Object,java.lang.Object>> values)

Description copied from interface: BufferManager

Creates BandInfo with information about one band.

Specified by:

createBandInfo in interface BufferManager

Parameters:

band - Band of this BandInfo

name - Band name

description - Description of band

dataType - Data type of band. See BufferManager to check types.

values - A key-value map with information properties about band

Returns:

BandInfo

createBuffer

public Buffer createBuffer(Buffer buffer,
                           boolean paginated)
                    throws BufferException

Description copied from interface: BufferManager

Creates a buffer from another buffer. If paginated parameter is false the buffer bands will be in memory. If paginated parameter is true the buffer bands will be paginated using a simple band page manager.

Specified by:

createBuffer in interface BufferManager

Returns:

Buffer

Throws:

BufferException

createAwtRasterBandPageManager

public BandPageManager createAwtRasterBandPageManager(java.awt.image.Raster img,
                                                      int band)

Specified by:

createAwtRasterBandPageManager in interface BufferManager

Returns:

createAwtRasterBandPageManagerList

public java.util.List<PageManager> createAwtRasterBandPageManagerList(java.awt.image.Raster img)
                                                               throws java.io.IOException

Specified by:

createAwtRasterBandPageManagerList in interface BufferManager

Returns:

Throws:

java.io.IOException

createOneBufferPerBand

public java.util.List<Buffer> createOneBufferPerBand(Buffer buffer,
                                                     boolean paginated)
                                              throws BufferException

Specified by:

createOneBufferPerBand in interface BufferManager

Throws:

BufferException

getBufferTypeFromAwtRaster

public int getBufferTypeFromAwtRaster(java.awt.image.Raster raster)

Specified by:

getBufferTypeFromAwtRaster in interface BufferManager

Parameters:

raster -

Returns:

createRGBABuffer

public Buffer createRGBABuffer(java.awt.image.BufferedImage img,
                               IProjection projection,
                               Envelope envelope)
                        throws BufferException

Description copied from interface: BufferManager

Creates a forced RGBA Buffer from a BufferedImage

Specified by:

createRGBABuffer in interface BufferManager

Returns:

Buffer

Throws:

BufferException

createRGBBuffer

public Buffer createRGBBuffer(java.awt.image.BufferedImage img,
                              IProjection projection,
                              Envelope envelope)
                       throws BufferException

Description copied from interface: BufferManager

Creates a forced RGB Buffer from a BufferedImage

Specified by:

createRGBBuffer in interface BufferManager

Returns:

Buffer

Throws:

BufferException

getTypeName

public java.lang.String getTypeName(int type)

Description copied from interface: BufferManager

Return type's name

Specified by:

getTypeName in interface BufferManager

Returns:

getBufferTypeName

public java.lang.String getBufferTypeName(int dataType)

Specified by:

getBufferTypeName in interface BufferManager

Returns:

coerce

public java.lang.Object coerce(int dataType,
                               java.lang.Object value)
                        throws CoercionException

Specified by:

coerce in interface BufferManager

Throws:

CoercionException

createBufferDimensions

public BufferDimensions createBufferDimensions(int rows,
                                               int columns,
                                               Envelope envelope)

Specified by:

createBufferDimensions in interface BufferManager

Returns:

getLastFolderUsedToSaveRaster

public java.io.File getLastFolderUsedToSaveRaster()

Specified by:

getLastFolderUsedToSaveRaster in interface BufferManager

Returns:

setLastFolderUsedToSaveRaster

public void setLastFolderUsedToSaveRaster(java.io.File folder)

Specified by:

setLastFolderUsedToSaveRaster in interface BufferManager

createOperation

public Operation createOperation(java.lang.String name)

Specified by:

createOperation in interface OperationManager

Returns:

a Operation from its name

createOperationParameters

public DynObject createOperationParameters(java.lang.String name)

Specified by:

createOperationParameters in interface OperationManager

Returns:

parameters to create a operation

registerOperationFactory

public void registerOperationFactory(OperationFactory factory)

Description copied from interface: OperationManager

Register operation factory

Specified by:

registerOperationFactory in interface OperationManager

getOperationFactories

public java.util.List<OperationFactory> getOperationFactories()

Specified by:

getOperationFactories in interface OperationManager

Returns:

a List of operation factories

getOperationFactory

public OperationFactory getOperationFactory(java.lang.String name)

Specified by:

getOperationFactory in interface OperationManager

Returns:

a operation factory from its name

execute

public Buffer execute(SimpleTaskStatus status,
                      java.lang.String name,
                      Buffer buffer,
                      DynObject parameters)
               throws BufferOperationException

Specified by:

execute in interface OperationManager

Returns:

the buffer result of executing the operation

Throws:

BufferOperationException

createKernel

public Kernel createKernel(double[][] k)

Specified by:

createKernel in interface BufferManager

createKernel

public Kernel createKernel(double[][] k,
                           double divisor)

Specified by:

createKernel in interface BufferManager

createOperationListEntry

public OperationListEntry createOperationListEntry(Operation operation,
                                                   DynObject parameters)

Description copied from interface: OperationManager

Creates a entry for OperationList

Specified by:

createOperationListEntry in interface OperationManager

Returns:

new OperationListEntry

createOperationList

public OperationList createOperationList()

Description copied from interface: OperationManager

Creates a OperationList

Specified by:

createOperationList in interface OperationManager

Returns:

new OperationList

createBufferFromAwtRaster

public Buffer createBufferFromAwtRaster(java.awt.image.Raster raster,
                                        IProjection projection,
                                        Envelope envelope)
                                 throws java.io.IOException,
                                        BufferException

Specified by:

createBufferFromAwtRaster in interface BufferManager

Returns:

Throws:

java.io.IOException

BufferException