/*
* GeoTools - The Open Source Java GIS Toolkit
* http://geotools.org
*
* (C) 2005-2015, Open Source Geospatial Foundation (OSGeo)
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation;
* version 2.1 of the License.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*/
/*
* NOTICE OF RELEASE TO THE PUBLIC DOMAIN
*
* This work was created by employees of the USDA Forest Service's
* Fire Science Lab for internal use. It is therefore ineligible for
* copyright under title 17, section 105 of the United States Code. You
* may treat it as you would treat any public domain work: it may be used,
* changed, copied, or redistributed, with or without permission of the
* authors, for free or for compensation. You may not claim exclusive
* ownership of this code because it is already owned by everyone. Use this
* software entirely at your own risk. No warranty of any kind is given.
*
* A copy of 17-USC-105 should have accompanied this distribution in the file
* 17USC105.html. If not, you may access the law via the US Government's
* public websites:
* - http://www.copyright.gov/title17/92chap1.html#105
* - http://www.gpoaccess.gov/uscode/ (enter "17USC105" in the search box.)
*/
package org.geotools.gce.geotiff;
import it.geosolutions.imageio.maskband.DatasetLayout;
import it.geosolutions.imageioimpl.plugins.tiff.TIFFImageReaderSpi;
import it.geosolutions.imageioimpl.plugins.tiff.TiffDatasetLayoutImpl;
import java.awt.Color;
import java.awt.Rectangle;
import java.awt.RenderingHints;
import java.awt.geom.AffineTransform;
import java.awt.image.ColorModel;
import java.awt.image.SampleModel;
import java.awt.image.renderable.ParameterBlock;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.net.URL;
import java.nio.channels.FileChannel;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.HashMap;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.imageio.ImageIO;
import javax.imageio.ImageReadParam;
import javax.imageio.ImageReader;
import javax.imageio.metadata.IIOMetadata;
import javax.imageio.spi.ImageInputStreamSpi;
import javax.imageio.stream.ImageInputStream;
import javax.media.jai.ImageLayout;
import javax.media.jai.JAI;
import javax.media.jai.PlanarImage;
import javax.media.jai.ROI;
import javax.media.jai.RenderedOp;
import org.geotools.coverage.Category;
import org.geotools.coverage.GridSampleDimension;
import org.geotools.coverage.TypeMap;
import org.geotools.coverage.grid.GridCoverage2D;
import org.geotools.coverage.grid.GridEnvelope2D;
import org.geotools.coverage.grid.GridGeometry2D;
import org.geotools.coverage.grid.io.AbstractGridCoverage2DReader;
import org.geotools.coverage.grid.io.AbstractGridFormat;
import org.geotools.coverage.grid.io.GridCoverage2DReader;
import org.geotools.coverage.grid.io.GroundControlPoints;
import org.geotools.coverage.grid.io.OverviewPolicy;
import org.geotools.coverage.grid.io.imageio.MaskOverviewProvider;
import org.geotools.coverage.grid.io.imageio.MaskOverviewProvider.MaskInfo;
import org.geotools.coverage.grid.io.imageio.geotiff.GeoTiffIIOMetadataDecoder;
import org.geotools.coverage.grid.io.imageio.geotiff.GeoTiffMetadata2CRSAdapter;
import org.geotools.coverage.grid.io.imageio.geotiff.TiePoint;
import org.geotools.data.DataSourceException;
import org.geotools.data.DataUtilities;
import org.geotools.data.FileGroupProvider.FileGroup;
import org.geotools.data.MapInfoFileReader;
import org.geotools.data.PrjFileReader;
import org.geotools.data.WorldFileReader;
import org.geotools.factory.Hints;
import org.geotools.geometry.GeneralEnvelope;
import org.geotools.image.ImageWorker;
import org.geotools.image.io.ImageIOExt;
import org.geotools.referencing.CRS;
import org.geotools.referencing.operation.matrix.XAffineTransform;
import org.geotools.referencing.operation.transform.ProjectiveTransform;
import org.geotools.resources.coverage.CoverageUtilities;
import org.geotools.resources.i18n.Vocabulary;
import org.geotools.resources.i18n.VocabularyKeys;
import org.geotools.resources.image.ImageUtilities;
import org.geotools.util.NumberRange;
import org.opengis.coverage.ColorInterpretation;
import org.opengis.coverage.grid.Format;
import org.opengis.coverage.grid.GridCoverage;
import org.opengis.coverage.grid.GridEnvelope;
import org.opengis.geometry.Envelope;
import org.opengis.parameter.GeneralParameterValue;
import org.opengis.parameter.ParameterValue;
import org.opengis.referencing.FactoryException;
import org.opengis.referencing.ReferenceIdentifier;
import org.opengis.referencing.crs.CoordinateReferenceSystem;
import org.opengis.referencing.operation.MathTransform;
import org.opengis.referencing.operation.TransformException;
/**
* this class is responsible for exposing the data and the Georeferencing
* metadata available to the Geotools library. This reader is heavily based on
* the capabilities provided by the ImageIO tools and JAI libraries.
*
*
* @author Bryce Nordgren, USDA Forest Service
* @author Simone Giannecchini
* @since 2.1
*
*/
public class GeoTiffReader extends AbstractGridCoverage2DReader implements GridCoverage2DReader {
/** Logger for the {@link GeoTiffReader} class. */
private Logger LOGGER = org.geotools.util.logging.Logging.getLogger(GeoTiffReader.class.toString());
/** With this java switch I can control whether or not an external PRJ files takes precedence over the internal CRS definition*/
public static final String OVERRIDE_CRS_SWITCH = "org.geotools.gce.geotiff.override.crs";
/** With this java switch I can control whether or not an external PRJ files takes precedence over the internal CRS definition*/
static boolean OVERRIDE_INNER_CRS=Boolean.valueOf(System.getProperty(GeoTiffReader.OVERRIDE_CRS_SWITCH, "True"));
/** SPI for creating tiff readers in ImageIO tools */
private final static TIFFImageReaderSpi READER_SPI = new TIFFImageReaderSpi();
/** Adapter for the GeoTiff crs. */
private GeoTiffMetadata2CRSAdapter gtcs;
private double noData = Double.NaN;
/** File containing image overviews */
private File ovrSource;
/** {@link ImageInputStreamSpi} for the file containing external overviews */
private ImageInputStreamSpi ovrInStreamSPI = null;
/** Image index of the overviews file */
private int extOvrImgChoice = -1;
/** {@link MaskOverviewProvider} instance used for handling internal/external Overviews*/
private MaskOverviewProvider maskOvrProvider;
/** Boolean indicating if {@link MaskOverviewProvider} is present*/
private boolean hasMaskOvrProvider;
/**
* The ground control points, populated if there is no grid to world transformation
*/
private GroundControlPoints gcps;
/**
* Creates a new instance of GeoTiffReader
*
* @param input
* the GeoTiff file
* @throws DataSourceException
*/
public GeoTiffReader(Object input) throws DataSourceException {
this(input, new Hints(Hints.FORCE_LONGITUDE_FIRST_AXIS_ORDER,Boolean.TRUE));
}
/**
* Creates a new instance of GeoTiffReader
*
* @param input
* the GeoTiff file
* @param uHints
* user-supplied hints TODO currently are unused
* @throws DataSourceException
*/
public GeoTiffReader(Object input, Hints uHints) throws DataSourceException {
super(input,uHints);
// /////////////////////////////////////////////////////////////////////
//
// Set the source being careful in case it is an URL pointing to a file
//
// /////////////////////////////////////////////////////////////////////
try {
// setting source
if (input instanceof URL) {
final URL sourceURL = (URL) input;
source = DataUtilities.urlToFile(sourceURL);
}
closeMe = true;
// /////////////////////////////////////////////////////////////////////
//
// Get a stream in order to read from it for getting the basic
// information for this coverage
//
// /////////////////////////////////////////////////////////////////////
if ((source instanceof InputStream)|| (source instanceof ImageInputStream))
closeMe = false;
if(source instanceof ImageInputStream )
inStream = (ImageInputStream) source;
else{
inStreamSPI = ImageIOExt.getImageInputStreamSPI(source);
if (inStreamSPI == null)
throw new IllegalArgumentException("No input stream for the provided source");
inStream = inStreamSPI.createInputStreamInstance(source, ImageIO.getUseCache(), ImageIO.getCacheDirectory());
}
if (inStream == null) {
// Try to figure out what went wrong and provide some info to the user.
if(source instanceof File) {
File f = (File) source;
if (!f.exists()) {
throw new FileNotFoundException("File " + f.getAbsolutePath() + " does not exist.");
} else if (f.isDirectory()) {
throw new IOException("File " + f.getAbsolutePath() + " is a directory.");
} else if(!f.canRead()) {
throw new IOException("File " + f.getAbsolutePath() + " can not be read.");
}
}
// If we can't give anything more specific, throw the generic error.
throw new IllegalArgumentException("No input stream for the provided source");
}
// /////////////////////////////////////////////////////////////////////
//
// Informations about multiple levels and such
//
// /////////////////////////////////////////////////////////////////////
getHRInfo(this.hints);
// /////////////////////////////////////////////////////////////////////
//
// Coverage name
//
// /////////////////////////////////////////////////////////////////////
coverageName = source instanceof File ? ((File) source).getName(): "geotiff_coverage";
final int dotIndex = coverageName.lastIndexOf('.');
if (dotIndex != -1 && dotIndex != coverageName.length())
coverageName = coverageName.substring(0, dotIndex);
} catch (IOException e) {
throw new DataSourceException(e);
}finally{
// /////////////////////////////////////////////////////////////////////
//
// Freeing streams
//
// /////////////////////////////////////////////////////////////////////
if (closeMe&&inStream!=null)//
try{
inStream.close();
}catch (Throwable t) {
}
}
}
/**
* Collect georeferencing information about this geotiff.
*
* @param hints
* @throws DataSourceException
*/
private void getHRInfo(Hints hints) throws DataSourceException {
ImageReader reader = null;
ImageReader ovrReader = null;
ImageInputStream ovrStream = null;
try {
// //
//
// Get a reader for this format
//
// //
reader = READER_SPI.createReaderInstance();
// //
//
// get the METADATA
//
// //
inStream.mark();
reader.setInput(inStream);
final IIOMetadata iioMetadata = reader.getImageMetadata(0);
final GeoTiffIIOMetadataDecoder metadata = new GeoTiffIIOMetadataDecoder(iioMetadata);
gtcs = new GeoTiffMetadata2CRSAdapter(hints);
// //
//
// get the CRS INFO
//
// //
final Object tempCRS = this.hints.get(Hints.DEFAULT_COORDINATE_REFERENCE_SYSTEM);
if (tempCRS != null) {
this.crs = (CoordinateReferenceSystem) tempCRS;
if (LOGGER.isLoggable(Level.FINE))
LOGGER.log(Level.FINE, "Using forced coordinate reference system");
} else {
// check external prj first
crs = getCRS(source);
// now, if we did not want to override the inner CRS or we did not have any external PRJ at hand
// let's look inside the geotiff
if (!OVERRIDE_INNER_CRS || crs==null){
if(metadata.hasGeoKey()&& gtcs != null){
crs = gtcs.createCoordinateSystem(metadata);
}
}
}
//
// No data
//
if (metadata.hasNoData()){
noData = metadata.getNoData();
}
//
// parse and set layout
//
setLayout(reader);
//
// parse TIFF StreamMetadata
//
dtLayout = TiffDatasetLayoutImpl.parseLayout(reader.getStreamMetadata());
// Creating a new OverviewsProvider instance
File inputFile = null;
if (source instanceof File) {
inputFile = (File) source;
} else if (source instanceof URL && (((URL) source).getProtocol() == "file")) {
inputFile = DataUtilities.urlToFile((URL) source);
}
if (inputFile != null) {
maskOvrProvider = new MaskOverviewProvider(dtLayout, inputFile);
hasMaskOvrProvider = true;
} else if (dtLayout != null && dtLayout.getExternalMasks() != null) {
String path = dtLayout.getExternalMasks().getAbsolutePath();
maskOvrProvider = new MaskOverviewProvider(dtLayout, new File(path.substring(0,
path.length() - 4)));
hasMaskOvrProvider = true;
}
// //
//
// get the dimension of the hr image and build the model as well as
// computing the resolution
// //
numOverviews = hasMaskOvrProvider ? maskOvrProvider.getNumOverviews() : dtLayout.getNumInternalOverviews();
int hrWidth = reader.getWidth(0);
int hrHeight = reader.getHeight(0);
final Rectangle actualDim = new Rectangle(0, 0, hrWidth, hrHeight);
originalGridRange = new GridEnvelope2D(actualDim);
if (gtcs != null&& metadata!=null&& (metadata.hasModelTrasformation()||(metadata.hasPixelScales()&&metadata.hasTiePoints()))) {
this.raster2Model = GeoTiffMetadata2CRSAdapter.getRasterToModel(metadata);
} else {
// world file
this.raster2Model = parseWorldFile(source);
// now world file --> mapinfo?
if (raster2Model == null) {
MapInfoFileReader mifReader = parseMapInfoFile(source);
if(mifReader!=null){
raster2Model = mifReader.getTransform();
crs = mifReader.getCRS();
}
}
}
if (crs == null){
if(LOGGER.isLoggable(Level.WARNING)){
LOGGER.warning("Coordinate Reference System is not available");
}
crs = AbstractGridFormat.getDefaultCRS();
}
if (this.raster2Model == null) {
TiePoint[] modelTiePoints = metadata.getModelTiePoints();
if (modelTiePoints != null && modelTiePoints.length > 1) {
// use a unit transform and expose the GCPs
gcps = new GroundControlPoints(Arrays.asList(modelTiePoints), crs);
raster2Model = ProjectiveTransform.create(new AffineTransform());
crs = AbstractGridFormat.getDefaultCRS();
} else {
throw new DataSourceException("Raster to Model Transformation is not available");
}
}
// create envelope using corner transformation
final AffineTransform tempTransform = new AffineTransform(
(AffineTransform) raster2Model);
tempTransform.concatenate(CoverageUtilities.CENTER_TO_CORNER);
originalEnvelope = CRS.transform(ProjectiveTransform.create(tempTransform),
new GeneralEnvelope(actualDim));
originalEnvelope.setCoordinateReferenceSystem(crs);
// ///
//
// setting the higher resolution available for this coverage
//
// ///
highestRes = new double[2];
highestRes[0] = XAffineTransform.getScaleX0(tempTransform);
highestRes[1] = XAffineTransform.getScaleY0(tempTransform);
// External Overview management
if (maskOvrProvider != null) {
extOvrImgChoice = maskOvrProvider.getNumExternalOverviews() > 0 ? maskOvrProvider
.getNumInternalOverviews() + 1 : -1;
} else {
File extOvrFile = dtLayout.getExternalOverviews();
if (extOvrFile != null && extOvrFile.exists()) {
// Setting the overview file
ovrSource = extOvrFile;
ovrInStreamSPI = ImageIOExt.getImageInputStreamSPI(extOvrFile);
ovrReader = READER_SPI.createReaderInstance();
ovrStream = ovrInStreamSPI.createInputStreamInstance(extOvrFile,
ImageIO.getUseCache(), ImageIO.getCacheDirectory());
ovrReader.setInput(ovrStream);
// this includes the real image as this is a image index, we need to add one.
extOvrImgChoice = numOverviews + 1;
numOverviews = numOverviews + dtLayout.getNumExternalOverviews();
if (numOverviews < extOvrImgChoice)
extOvrImgChoice = -1;
}
}
// //
//
// get information for the successive images
//
// //
if (numOverviews >= 1) {
overViewResolutions = new double[numOverviews][2];
// Internal overviews start at 1, so lastInternalOverview matches numOverviews if no
// external.
int firstExternalOverview = extOvrImgChoice == -1 ? numOverviews
: extOvrImgChoice - 1;
double spanRes0 = highestRes[0] * this.originalGridRange.getSpan(0);
double spanRes1 = highestRes[1] * this.originalGridRange.getSpan(1);
if (maskOvrProvider != null) {
overViewResolutions = maskOvrProvider
.getOverviewResolutions(spanRes0, spanRes1);
} else {
for (int i = 0; i < firstExternalOverview; i++) {
// Setting the correct overview index
int overviewImageIndex = dtLayout.getInternalOverviewImageIndex(i + 1);
int index = overviewImageIndex >= 0 ? overviewImageIndex : 0;
overViewResolutions[i][0] = spanRes0 / reader.getWidth(index);
overViewResolutions[i][1] = spanRes1 / reader.getHeight(index);
}
for (int i = firstExternalOverview; i < numOverviews; i++) {
overViewResolutions[i][0] = spanRes0
/ ovrReader.getWidth(i - firstExternalOverview);
overViewResolutions[i][1] = spanRes1
/ ovrReader.getHeight(i - firstExternalOverview);
}
}
} else
overViewResolutions = null;
} catch (Throwable e) {
throw new DataSourceException(e);
} finally {
if (reader != null)
try {
reader.dispose();
} catch (Throwable t) {
}
if (ovrReader != null)
try {
ovrReader.dispose();
} catch (Throwable t) {
}
if (ovrStream != null)
try {
ovrStream.close();
} catch (Throwable t) {
}
if (inStream != null)
try {
inStream.reset();
} catch (Throwable t) {
}
}
}
/**
* @see org.opengis.coverage.grid.GridCoverageReader#getFormat()
*/
public Format getFormat() {
return new GeoTiffFormat();
}
/**
* This method reads in the TIFF image, constructs an appropriate CRS,
* determines the math transform from raster to the CRS model, and
* constructs a GridCoverage.
*
* @param params
* currently ignored, potentially may be used for hints.
*
* @return grid coverage represented by the image
*
* @throws IOException
* on any IO related troubles
*/
public GridCoverage2D read(GeneralParameterValue[] params) throws IOException {
GeneralEnvelope requestedEnvelope = null;
Rectangle dim = null;
Color inputTransparentColor=null;
OverviewPolicy overviewPolicy=null;
int[] suggestedTileSize=null;
if (params != null) {
//
// Checking params
//
if (params != null) {
for (int i = 0; i < params.length; i++) {
final ParameterValue param = (ParameterValue) params[i];
final ReferenceIdentifier name = param.getDescriptor().getName();
if (name.equals(AbstractGridFormat.READ_GRIDGEOMETRY2D.getName())) {
final GridGeometry2D gg = (GridGeometry2D) param.getValue();
requestedEnvelope = new GeneralEnvelope((Envelope) gg.getEnvelope2D());
dim = gg.getGridRange2D().getBounds();
continue;
}
if (name.equals(AbstractGridFormat.OVERVIEW_POLICY.getName())) {
overviewPolicy=(OverviewPolicy) param.getValue();
continue;
}
if (name.equals(AbstractGridFormat.INPUT_TRANSPARENT_COLOR.getName())) {
inputTransparentColor = (Color) param.getValue();
continue;
}
if (name.equals(AbstractGridFormat.SUGGESTED_TILE_SIZE.getName())) {
String suggestedTileSize_= (String) param.getValue();
if(suggestedTileSize_!=null&&suggestedTileSize_.length()>0){
suggestedTileSize_=suggestedTileSize_.trim();
int commaPosition=suggestedTileSize_.indexOf(",");
if(commaPosition<0){
int tileDim=Integer.parseInt(suggestedTileSize_);
suggestedTileSize= new int[]{tileDim,tileDim};
} else {
int tileW=Integer.parseInt(suggestedTileSize_.substring(0,commaPosition));
int tileH=Integer.parseInt(suggestedTileSize_.substring(commaPosition+1));
suggestedTileSize= new int[]{tileW,tileH};
}
}
continue;
}
}
}
}
//
// set params
//
Integer imageChoice = new Integer(0);
final ImageReadParam readP = new ImageReadParam();
try {
imageChoice = setReadParams(overviewPolicy, readP,requestedEnvelope, dim);
} catch (TransformException e) {
new DataSourceException(e);
}
//
// IMAGE READ OPERATION
//
Hints newHints = null;
if(suggestedTileSize!=null){
newHints= hints.clone();
final ImageLayout layout = new ImageLayout();
layout.setTileGridXOffset(0);
layout.setTileGridYOffset(0);
layout.setTileHeight(suggestedTileSize[1]);
layout.setTileWidth(suggestedTileSize[0]);
newHints.add(new RenderingHints(JAI.KEY_IMAGE_LAYOUT, layout));
}
final ParameterBlock pbjRead = new ParameterBlock();
// Image Index used for the Overview management
if (maskOvrProvider != null) {
if (maskOvrProvider.isExternalOverview(imageChoice)) {
pbjRead.add(maskOvrProvider.getExternalOverviewInputStreamSpi()
.createInputStreamInstance(maskOvrProvider.getOvrURL(),
ImageIO.getUseCache(), ImageIO.getCacheDirectory()));
} else {
pbjRead.add(maskOvrProvider.getInputStreamSpi().createInputStreamInstance(
maskOvrProvider.getFileURL(), ImageIO.getUseCache(),
ImageIO.getCacheDirectory()));
}
pbjRead.add(maskOvrProvider.getOverviewIndex(imageChoice));
} else {
if (extOvrImgChoice >= 0 && imageChoice >= extOvrImgChoice) {
pbjRead.add(ovrInStreamSPI.createInputStreamInstance(ovrSource,
ImageIO.getUseCache(), ImageIO.getCacheDirectory()));
pbjRead.add(imageChoice - extOvrImgChoice);
} else {
if(inStream instanceof ImageInputStream && !closeMe) {
pbjRead.add(inStream);
}
else {
pbjRead.add(inStreamSPI != null ? inStreamSPI.createInputStreamInstance(source,
ImageIO.getUseCache(), ImageIO.getCacheDirectory()) : ImageIO
.createImageInputStream(source));
}
// Setting correct ImageChoice (taking into account overviews and masks)
int overviewImageIndex = dtLayout.getInternalOverviewImageIndex(imageChoice);
int index = overviewImageIndex >= 0 ? overviewImageIndex : 0;
pbjRead.add(index);
}
}
pbjRead.add(Boolean.FALSE);
pbjRead.add(Boolean.FALSE);
pbjRead.add(Boolean.FALSE);
pbjRead.add(null);
pbjRead.add(null);
pbjRead.add(readP);
pbjRead.add(READER_SPI.createReaderInstance());
RenderedOp coverageRaster=JAI.create("ImageRead", pbjRead,newHints!=null?(RenderingHints) newHints:null);
//
// MASKING INPUT COLOR as indicated
//
if(inputTransparentColor!=null){
coverageRaster= new ImageWorker(coverageRaster).setRenderingHints(newHints).makeColorTransparent(inputTransparentColor).getRenderedOperation();
}
//
// External/Internal Masking
//
// ROI definition
ROI roi = null;
// Using MaskOvrProvider
if (hasMaskOvrProvider) {
// Parameter definiton
GridEnvelope ogr = getOriginalGridRange();
Rectangle sourceRegion;
if (readP.getSourceRegion() != null) {
sourceRegion = readP.getSourceRegion();
} else {
sourceRegion = new Rectangle(ogr.getSpan(0), ogr.getSpan(1));
}
MaskInfo info = maskOvrProvider.getMaskInfo(imageChoice, sourceRegion, readP);
if (info != null) {
// Reading Mask
RenderedOp roiRaster = readROIRaster(info.streamSpi,
DataUtilities.fileToURL(info.file), info.index, newHints,
info.readParameters);
roi = MaskOverviewProvider.scaleROI(roiRaster, coverageRaster.getBounds());
}
}
//
// BUILDING COVERAGE
//
AffineTransform rasterToModel = getRescaledRasterToModel(coverageRaster);
try {
return createCoverage(coverageRaster, ProjectiveTransform.create(rasterToModel), roi);
} catch (Exception e) {
// dispose and close file
ImageUtilities.disposePlanarImageChain(coverageRaster);
// rethrow
if (e instanceof DataSourceException) {
throw (DataSourceException) e;
}
throw new DataSourceException(e);
}
}
/**
* General method for reading an input ROI Mask from a file
*
* @return A {@link RenderedOp} representing the Raster ROI
*/
private RenderedOp readROIRaster(ImageInputStreamSpi spi, URL inFile, int index,
RenderingHints newHints, ImageReadParam readP) {
// Raster initialization
RenderedOp raster = null;
try {
// ParameterBlock creation
ParameterBlock pb = new ParameterBlock();
pb.add(spi.createInputStreamInstance(inFile, ImageIO.getUseCache(),
ImageIO.getCacheDirectory()));
pb.add(index);
pb.add(Boolean.FALSE);
pb.add(Boolean.FALSE);
pb.add(Boolean.FALSE);
pb.add(null);
pb.add(null);
pb.add(readP);
pb.add(READER_SPI.createReaderInstance());
raster = JAI.create("ImageRead", pb, newHints != null ? (RenderingHints) newHints
: null);
} catch (Exception e) {
LOGGER.severe("Unable to read input Mask Band for coverage: " + coverageName);
}
return raster;
}
/**
* Returns the geotiff metadata for this geotiff file.
*
* @return the metadata
*/
public GeoTiffIIOMetadataDecoder getMetadata() {
GeoTiffIIOMetadataDecoder metadata = null;
ImageReader reader = null;
boolean closeMe = true;
ImageInputStream stream = null;
try {
if ((source instanceof InputStream)|| (source instanceof ImageInputStream)){
closeMe = false;
}
if (source instanceof ImageInputStream ) {
stream =(ImageInputStream) source;
} else {
inStreamSPI = ImageIOExt.getImageInputStreamSPI(source);
if (inStreamSPI == null) {
throw new IllegalArgumentException("No input stream for the provided source");
}
stream = inStreamSPI.createInputStreamInstance(source, ImageIO.getUseCache(), ImageIO.getCacheDirectory());
}
if (stream == null) {
throw new IllegalArgumentException("No input stream for the provided source");
}
stream.mark();
reader = READER_SPI.createReaderInstance();
reader.setInput(stream);
final IIOMetadata iioMetadata = reader.getImageMetadata(0);
metadata = new GeoTiffIIOMetadataDecoder(iioMetadata);
} catch (IOException e) {
if (LOGGER.isLoggable(Level.SEVERE)) {
LOGGER.log(Level.SEVERE, e.getMessage(), e);
}
} finally {
if (reader != null)
try {
reader.dispose();
} catch (Throwable t) {
}
if (stream != null){
try {
stream.reset();
} catch (Throwable t) {
}
if (closeMe){
try {
stream.close();
} catch (Throwable t) {
}
}
}
}
return metadata;
}
/**
* Creates a {@link GridCoverage} for the provided {@link PlanarImage} using
* the {@link #raster2Model} that was provided for this coverage.
*
* <p>
* This method is vital when working with coverages that have a raster to
* model transformation that is not a simple scale and translate.
*
* @param image
* contains the data for the coverage to create.
* @param raster2Model
* is the {@link MathTransform} that maps from the raster space
* to the model space.
* @param roi Optional ROI used as Mask
* @return a {@link GridCoverage}
* @throws IOException
*/
protected final GridCoverage2D createCoverage(PlanarImage image, MathTransform raster2Model, ROI roi) throws IOException {
//creating bands
final SampleModel sm = image.getSampleModel();
final ColorModel cm = image.getColorModel();
final int numBands = sm.getNumBands();
final GridSampleDimension[] bands = new GridSampleDimension[numBands];
// setting bands names.
Category noDataCategory = null;
final Map<String, Object> properties = new HashMap<String, Object>();
if (!Double.isNaN(noData)){
noDataCategory = new Category(Vocabulary
.formatInternational(VocabularyKeys.NODATA), new Color[] { new Color(0, 0, 0, 0) }, NumberRange
.create(noData, noData));
CoverageUtilities.setNoDataProperty(properties, new Double(noData));
}
// Setting ROI Property
if (roi != null) {
image.setProperty("ROI", roi);
CoverageUtilities.setROIProperty(properties, roi);
}
Set<String> bandNames = new HashSet<String>();
for (int i = 0; i < numBands; i++) {
final ColorInterpretation colorInterpretation=TypeMap.getColorInterpretation(cm, i);
if(colorInterpretation==null)
throw new IOException("Unrecognized sample dimension type");
Category[] categories = null;
if (noDataCategory != null) {
categories = new Category[]{noDataCategory};
}
String bandName = colorInterpretation.name();
// make sure we create no duplicate band names
if(colorInterpretation == ColorInterpretation.UNDEFINED || bandNames.contains(bandName)) {
bandName = "Band" + (i + 1);
}
bands[i] = new GridSampleDimension(bandName,categories,null);
}
// creating coverage
if (raster2Model != null) {
return coverageFactory.create(coverageName, image, crs,raster2Model, bands, null, properties);
}
return coverageFactory.create(coverageName, image, new GeneralEnvelope(originalEnvelope), bands, null, properties);
}
private CoordinateReferenceSystem getCRS(Object source) {
CoordinateReferenceSystem crs = null;
if (source instanceof File
|| (source instanceof URL && (((URL) source).getProtocol() == "file"))) {
// getting name for the prj file
final String sourceAsString;
if (source instanceof File) {
sourceAsString = ((File) source).getAbsolutePath();
} else {
String auth = ((URL) source).getAuthority();
String path = ((URL) source).getPath();
if (auth != null && !auth.equals("")) {
sourceAsString = "//" + auth + path;
} else {
sourceAsString = path;
}
}
final int index = sourceAsString.lastIndexOf(".");
final String base=index>0?sourceAsString.substring(0, index)+".prj":sourceAsString+".prj";
// does it exist?
final File prjFile = new File(base.toString());
if (prjFile.exists()) {
// it exists then we have top read it
PrjFileReader projReader = null;
FileInputStream instream=null;
try {
instream=new FileInputStream(prjFile);
final FileChannel channel = instream.getChannel();
projReader = new PrjFileReader(channel);
crs = projReader.getCoordinateReferenceSystem();
} catch (FileNotFoundException e) {
// warn about the error but proceed, it is not fatal
// we have at least the default crs to use
LOGGER.log(Level.INFO, e.getLocalizedMessage(), e);
} catch (IOException e) {
// warn about the error but proceed, it is not fatal
// we have at least the default crs to use
LOGGER.log(Level.INFO, e.getLocalizedMessage(), e);
} catch (FactoryException e) {
// warn about the error but proceed, it is not fatal
// we have at least the default crs to use
LOGGER.log(Level.INFO, e.getLocalizedMessage(), e);
} finally {
if (projReader != null)
try {
projReader.close();
} catch (IOException e) {
// warn about the error but proceed, it is not fatal
// we have at least the default crs to use
LOGGER .log(Level.FINE, e.getLocalizedMessage(),e);
}
if (instream != null)
try {
instream.close();
} catch (IOException e) {
// warn about the error but proceed, it is not fatal
// we have at least the default crs to use
LOGGER.log(Level.FINE, e.getLocalizedMessage(),e);
}
}
}
}
return crs;
}
/**
* @throws IOException
*/
static MathTransform parseWorldFile(Object source) throws IOException {
MathTransform raster2Model = null;
// TODO: Add support for FileImageInputStreamExt
// TODO: Check for WorldFile on URL beside the actual connection.
if (source instanceof File) {
final File sourceFile = ((File) source);
String parentPath = sourceFile.getParent();
String filename = sourceFile.getName();
final int i = filename.lastIndexOf('.');
filename = (i == -1) ? filename : filename.substring(0, i);
// getting name and extension
final String base = (parentPath != null) ? new StringBuilder(
parentPath).append(File.separator).append(filename)
.toString() : filename;
// We can now construct the baseURL from this string.
File file2Parse = new File(new StringBuilder(base).append(".wld")
.toString());
if (file2Parse.exists()) {
final WorldFileReader reader = new WorldFileReader(file2Parse);
raster2Model = reader.getTransform();
} else {
// looking for another extension
file2Parse = new File(new StringBuilder(base).append(".tfw")
.toString());
if (file2Parse.exists()) {
// parse world file
final WorldFileReader reader = new WorldFileReader(
file2Parse);
raster2Model = reader.getTransform();
}
}
}
return raster2Model;
}
/**
* @throws IOException
*/
static MapInfoFileReader parseMapInfoFile(Object source) throws IOException {
if (source instanceof File) {
final File sourceFile = ((File) source);
File file2Parse = getSibling(sourceFile, ".tab");
if (file2Parse != null && file2Parse.exists()) {
final MapInfoFileReader reader = new MapInfoFileReader(file2Parse);
return reader;
}
}
return null;
}
/**
* Number of coverages for this reader is 1
*
* @return the number of coverages for this reader.
*/
@Override
public int getGridCoverageCount() {
return 1;
}
@Override
public GroundControlPoints getGroundControlPoints() {
return gcps;
}
@Override
protected List<FileGroup> getFiles() {
File file = getSourceAsFile();
if (file == null) {
return null;
}
List<File> files = new ArrayList<>();
// add all common sidecars
addAllSiblings(file, files, ".prj", ".tab", ".wld", ".tfw");
if (hasMaskOvrProvider) {
DatasetLayout layout = maskOvrProvider.getLayout();
addSiblings(files, layout.getExternalMaskOverviews(), layout.getExternalOverviews(),
layout.getExternalMasks());
}
return Collections.singletonList(new FileGroup(file, files, null));
}
}