gvsig-raster / org.gvsig.raster.gdal / trunk / org.gvsig.raster.gdal / org.gvsig.raster.gdal.io / src / main / java / org / gvsig / raster / gdal / io / GdalProvider.java @ 2885
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/* gvSIG. Geographic Information System of the Valencian Government
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*
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* Copyright (C) 2007-2008 Infrastructures and Transports Department
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* of the Valencian Government (CIT)
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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* MA 02110-1301, USA.
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*
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*/
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package org.gvsig.raster.gdal.io; |
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import java.awt.geom.AffineTransform; |
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import java.io.BufferedReader; |
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import java.io.File; |
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import java.io.FileNotFoundException; |
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import java.io.FileReader; |
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import java.io.IOException; |
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import org.gvsig.fmap.dal.DALFileLocator; |
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import org.gvsig.fmap.dal.DALLocator; |
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import org.gvsig.fmap.dal.DataStore; |
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import org.gvsig.fmap.dal.coverage.RasterLocator; |
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import org.gvsig.fmap.dal.coverage.dataset.Buffer; |
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import org.gvsig.fmap.dal.coverage.datastruct.Extent; |
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import org.gvsig.fmap.dal.coverage.exception.BandAccessException; |
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import org.gvsig.fmap.dal.coverage.exception.FileNotOpenException; |
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import org.gvsig.fmap.dal.coverage.exception.InvalidSetViewException; |
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import org.gvsig.fmap.dal.coverage.exception.NotSupportedExtensionException; |
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import org.gvsig.fmap.dal.coverage.exception.ParsingException; |
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import org.gvsig.fmap.dal.coverage.exception.ProcessInterruptedException; |
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import org.gvsig.fmap.dal.coverage.exception.RasterDriverException; |
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import org.gvsig.fmap.dal.coverage.store.props.Transparency; |
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import org.gvsig.fmap.dal.spi.DataManagerProviderServices; |
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import org.gvsig.fmap.dal.spi.DataStoreProviderServices; |
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import org.gvsig.jgdal.GdalException; |
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import org.gvsig.metadata.MetadataLocator; |
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import org.gvsig.raster.cache.tile.provider.TileServer; |
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import org.gvsig.raster.impl.buffer.SpiRasterQuery; |
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import org.gvsig.raster.impl.datastruct.ExtentImpl; |
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import org.gvsig.raster.impl.provider.AbstractRasterProvider; |
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import org.gvsig.raster.impl.provider.RasterProvider; |
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import org.gvsig.raster.impl.provider.tile.FileTileServer; |
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import org.gvsig.raster.impl.store.AbstractRasterDataParameters; |
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import org.gvsig.raster.impl.store.DefaultRasterStore; |
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import org.gvsig.raster.impl.store.DefaultStoreFactory; |
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import org.gvsig.raster.impl.store.properties.DataStoreMetadata; |
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import org.gvsig.tools.ToolsLocator; |
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import org.gvsig.tools.dynobject.DynObject; |
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import org.gvsig.tools.extensionpoint.ExtensionPoint; |
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import org.gvsig.tools.extensionpoint.ExtensionPointManager; |
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import org.slf4j.Logger; |
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import org.slf4j.LoggerFactory; |
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/**
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* This class represents the data access for gdal formats.
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*
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* @author Nacho Brodin (nachobrodin@gmail.com)
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*/
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public class GdalProvider extends AbstractRasterProvider { |
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public static String NAME = "Gdal Store"; |
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public static String DESCRIPTION = "Gdal Raster file"; |
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public static final String METADATA_DEFINITION_NAME = "GdalStore"; |
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private static final Logger logger = LoggerFactory.getLogger(GdalProvider.class); |
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public static final String FORMAT_GTiff = "GTiff"; |
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public static final String FORMAT_VRT = "VRT"; |
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public static final String FORMAT_NITF = "NITF"; |
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public static final String FORMAT_HFA = "HFA"; |
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public static final String FORMAT_ELAS = "ELAS"; |
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public static final String FORMAT_MEM = "MEM"; |
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public static final String FORMAT_BMP = "BMP"; |
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public static final String FORMAT_PCIDSK = "PCIDSK"; |
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public static final String FORMAT_ILWIS = "ILWIS"; |
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public static final String FORMAT_HDF4 = "HDF4Image"; |
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public static final String FORMAT_PNM = "PNM"; |
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public static final String FORMAT_ENVI = "ENVI"; |
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public static final String FORMAT_EHDR = "EHdr"; |
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public static final String FORMAT_PAUX = "PAux"; |
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public static final String FORMAT_MFF = "MFF"; |
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public static final String FORMAT_MFF2 = "MFF2"; |
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public static final String FORMAT_BT = "BT"; |
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public static final String FORMAT_IDA = "IDA"; |
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public static final String FORMAT_RMF = "RMF"; |
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public static final String FORMAT_RST = "RST"; |
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public static final String FORMAT_LEVELLER = "Leveller"; |
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public static final String FORMAT_TERRAGEN = "Terragen"; |
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public static final String FORMAT_ERS = "ERS"; |
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public static final String FORMAT_INGR = "INGR"; |
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public static final String FORMAT_GSAG = "GSAG"; |
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public static final String FORMAT_GSBG = "GSBG"; |
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public static final String FORMAT_ADRG = "ADRG"; |
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public static final String FORMAT_JP2 = "JPEG2000"; |
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public static final String FORMAT_GRD = "GRD"; |
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public static final int BAND_HEIGHT = 64; |
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protected GdalNative file = null; |
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private Extent viewRequest = null; |
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protected static String[] formatList = null; |
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public static void register() { |
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ExtensionPointManager extensionPoints = ToolsLocator.getExtensionPointManager(); |
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registerFormats(); |
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ExtensionPoint point = extensionPoints.get("DefaultRasterProvider");
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point.append("reader", GdalProvider.NAME, GdalProvider.class);
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RasterLocator.getManager().getProviderServices().registerFileProvidersTiled(GdalProvider.class); |
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DataManagerProviderServices dataman = (DataManagerProviderServices) DALLocator.getDataManager(); |
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if (dataman != null && !dataman.getStoreProviders().contains(NAME)) { |
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dataman.registerStoreProvider(NAME, |
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GdalProvider.class, GdalDataParameters.class); |
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} |
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if(DALFileLocator.getFilesystemServerExplorerManager() != null) |
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DALFileLocator.getFilesystemServerExplorerManager().registerProvider( |
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NAME, DESCRIPTION, |
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GdalFilesystemServerExplorer.class); |
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dataman.registerStoreFactory(NAME, DefaultStoreFactory.class); |
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} |
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private static void registerFormats() { |
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formatList = new String[] { |
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"bmp",
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"gif",
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"tif",
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"tiff",
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"jpg",
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"jpeg",
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"png",
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"vrt",
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"dat", // Envi |
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"lan", // Erdas |
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"gis", // Erdas |
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"img", // Erdas |
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"pix", // PCI Geomatics |
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"aux", // PCI Geomatics |
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"adf", // ESRI Grids |
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"mpr", // Ilwis |
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"mpl", // Ilwis |
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"map", // PC Raster |
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"asc",
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"pgm", //Ficheros PNM en escala de grises |
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"ppm", //Ficheros PNM en RGB |
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"rst", //IDRISIS |
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"rmf", //Raster Matrix Format |
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"nos",
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"kap",
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"hdr",
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"raw",
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"ers",
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"xml",
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"grd",
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"txt"/*, |
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"jp2"*/};
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for (int i = 0; i < formatList.length; i++) |
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RasterLocator.getManager().getProviderServices().addFormat(formatList[i], GdalProvider.class); |
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} |
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public String[] getFormatList() { |
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return formatList;
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} |
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/**
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* Returns true if the extension is supported and false if doesn't
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* @param ext
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* @return
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*/
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public boolean isExtensionSupported(String ext) { |
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if(ext.indexOf(".") != -1) |
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ext = ext.substring(ext.lastIndexOf(".") + 1, ext.length()); |
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for (int i = 0; i < formatList.length; i++) { |
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if(formatList[i].compareTo(ext) == 0) |
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return true; |
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} |
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return false; |
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} |
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/**
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* Mandatory constructor to instantiate an empty provider
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*/
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public GdalProvider() {
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} |
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/**
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* Constructor. Abre el dataset.
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* @param proj Proyecci?n
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* @param fName Nombre del fichero
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* @throws NotSupportedExtensionException
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*/
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public GdalProvider(String params) throws NotSupportedExtensionException { |
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super(params);
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if(params instanceof String) { |
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GdalDataParameters p = new GdalDataParameters();
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p.setURI((String)params);
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super.init(p, null, ToolsLocator.getDynObjectManager() |
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.createDynObject( |
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MetadataLocator.getMetadataManager().getDefinition( |
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DataStore.METADATA_DEFINITION_NAME))); |
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init(p, null);
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} |
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} |
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public GdalProvider (GdalDataParameters params,
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DataStoreProviderServices storeServices) throws NotSupportedExtensionException {
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super(params, storeServices, ToolsLocator.getDynObjectManager()
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.createDynObject( |
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MetadataLocator.getMetadataManager().getDefinition( |
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DataStore.METADATA_DEFINITION_NAME))); |
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init(params, storeServices); |
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} |
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public GdalProvider(AbstractRasterDataParameters params,
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DataStoreProviderServices storeServices, DynObject metadata) {
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super(params, storeServices, metadata);
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} |
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/**
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* Creates file references and loads structures with the information and metadata
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* @param params load parameters
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* @throws NotSupportedExtensionException
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*/
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public void init (AbstractRasterDataParameters params, |
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DataStoreProviderServices storeServices) throws NotSupportedExtensionException {
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try {
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setParam(storeServices, params); |
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validRmf(params.getURI()); |
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setFName(translateFileName(params.getURI())); |
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file = new GdalNative(translateFileName(params.getURI()));
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setColorInterpretation(file.colorInterpr); |
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setColorTable(file.palette); |
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noData = file.getNoDataValue(); |
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String wktProjection = file.getProjectionRef();
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if(wktProjection != null && wktProjection != "") { |
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try {
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if(RasterLocator.getManager().isCRSUtilSupported())
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proj = RasterLocator.getManager().getCRSUtils().convertWktToIProjection(wktProjection); |
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} catch (Exception e) { |
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logger.info("Error reading WKT from the raster provider", e);
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} |
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} |
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//CrsWkt crs = new CrsWkt(wktProjection);
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//IProjection proj = CRSFactory.getCRS("EPSG:23030");
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ownTransformation = file.getOwnTransformation(); |
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externalTransformation = (AffineTransform)ownTransformation.clone();
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load(); |
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if(file != null) |
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bandCount = file.getRasterCount(); |
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} catch (GdalException e) {
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throw new NotSupportedExtensionException("Extension not supported", e); |
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} catch(Exception e) { |
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System.out.println("Error en GdalOpen"); |
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e.printStackTrace(); |
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file = null;
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} |
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//Obtenemos el tipo de dato de gdal y lo convertimos el de RasterBuf
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int[] dt = new int[file.getDataType().length]; |
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for (int i = 0; i < dt.length; i++) |
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dt[i] = GdalNative.getRasterBufTypeFromGdalType(file.getDataType()[i]); |
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setDataType(dt); |
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super.init();
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try {
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loadFromRmf(getRmfBlocksManager()); |
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} catch (ParsingException e) {
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//No lee desde rmf
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logger.debug("Problems reading from the RMF file", e);
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} |
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} |
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/**
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* Comprueba si el fichero abierto es un RasterMetaFile o una imagen
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* raster.
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* @throws GdalException
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*/
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private void validRmf(String file) throws GdalException { |
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if(file.endsWith(".rmf")) { |
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File f = new File(file); |
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try {
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FileReader fr = new FileReader(f); |
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BufferedReader br = new BufferedReader(fr); |
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char[] buffer = new char[5]; |
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br.read(buffer); |
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StringBuffer st = new StringBuffer(new String(buffer)); |
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br.close(); |
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fr.close(); |
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if(st.toString().equals("<?xml")) |
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throw new GdalException("RasterMetaFile"); |
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} catch (FileNotFoundException e) { |
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throw new GdalException("File Not Found"); |
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} catch (IOException e) { |
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throw new GdalException(""); |
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} |
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} |
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} |
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public RasterProvider load() {
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return this; |
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} |
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public boolean isOpen() { |
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if(file != null && file.isOpen()) |
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return true; |
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return false; |
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} |
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public String translateFileName(String fileName) { |
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if(fileName.endsWith("hdr")) |
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return fileName.substring(0, fileName.lastIndexOf(".")); |
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return fileName;
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} |
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/**
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* Asigna el extent de la vista actual. existe un fichero .rmf debemos hacer una transformaci?n
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* de la vista asignada ya que la petici?n viene en coordenadas del fichero .rmf y la vista (v)
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* ha de estar en coordenadas del fichero.
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*/
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public void setView(Extent e) { |
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viewRequest = new ExtentImpl(e);
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} |
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public Extent getView() {
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return viewRequest;
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} |
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public double getWidth() { |
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return file.width;
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} |
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public double getHeight() { |
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return file.height;
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} |
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/**
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* Read a line from the file
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* @param line
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* @param band
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* @return
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* @throws InvalidSetViewException
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* @throws FileNotOpenException
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* @throws RasterDriverException
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* @Deprecated This operation is deprecated because is not useful and in the future
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* it will not be maintained. The abstract operation has dissapear
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*/
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public Object readCompleteLine(int line, int band)throws InvalidSetViewException, FileNotOpenException, RasterDriverException { |
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if(line > this.getHeight() || band > this.getBandCount()) |
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throw new InvalidSetViewException("Request out of grid"); |
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try{
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return file.readCompleteLine(line, band);
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}catch(GdalException e){
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throw new RasterDriverException("Error reading data from Gdal library"); |
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} |
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} |
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public Object readBlock(int pos, int blockHeight, double scale) |
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throws InvalidSetViewException, FileNotOpenException, RasterDriverException, ProcessInterruptedException {
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if(pos < 0) |
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throw new InvalidSetViewException("Request out of grid"); |
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if((pos + blockHeight) > getHeight())
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blockHeight = Math.abs(((int)getHeight()) - pos); |
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try{
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return file.readBlock(pos, blockHeight, scale);
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}catch(GdalException e){
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throw new RasterDriverException("Error reading data from Gdal library"); |
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} |
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} |
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public Object getData(int x, int y, int band)throws InvalidSetViewException, FileNotOpenException, RasterDriverException { |
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if(file != null){ |
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if(x < 0 || y < 0 || x >= file.width || y >= file.height) |
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throw new InvalidSetViewException("Request out of grid"); |
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Object[] data = file.getData(x, y); |
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return data[band];
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} |
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throw new FileNotOpenException("GdalNative not exist"); |
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} |
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@Override
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public void loadBuffer(SpiRasterQuery q) |
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throws ProcessInterruptedException, RasterDriverException {
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setView(q.getAdjustedRequestBoundingBox()); |
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try {
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file.readWindow(q.getBufferForProviders(), |
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q.getBandList(), |
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q.getAdjustedRequestBoundingBox(), |
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q.getAdjustedRequestPxWindow(), |
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q.getTaskStatus()); |
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} catch (GdalException e) {
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throw new RasterDriverException("Error reading data", e); |
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} |
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} |
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public int getBlockSize(){ |
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if(file != null) |
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return file.getBlockSize();
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else
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return 0; |
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} |
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public DataStoreMetadata getMetadata() {
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if(file != null) |
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return file.metadata;
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else
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return null; |
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} |
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public Transparency getTransparency() { |
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return file.fileTransparency;
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} |
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public boolean isGeoreferenced() { |
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if(file != null) |
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return file.georeferenced;
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else
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return false; |
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} |
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|
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/**
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* Informa de si el driver ha supersampleado en el ?ltimo dibujado. Es el driver el que colocar?
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* el valor de esta variable cada vez que dibuja.
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* @return true si se ha supersampleado y false si no se ha hecho.
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*/
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public boolean isSupersampling() { |
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if(file != null) |
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return file.isSupersampling;
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else
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return false; |
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} |
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|
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public GdalNative getNative(){
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return file;
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} |
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|
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public void setAffineTransform(AffineTransform t){ |
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super.setAffineTransform(t);
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file.setExternalTransform(t); |
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} |
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|
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public int getOverviewCount(int band) throws BandAccessException, RasterDriverException { |
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if(band >= getBandCount())
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throw new BandAccessException("Wrong band"); |
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try {
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return file.getRasterBand(band + 1).getOverviewCount(); |
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} catch (GdalException e) {
|
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throw new RasterDriverException(""); |
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} |
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} |
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|
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public int getOverviewWidth(int band, int overview) throws BandAccessException, RasterDriverException { |
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if (band >= getBandCount())
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throw new BandAccessException("Wrong band"); |
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try {
|
| 471 |
if (overview >= file.getRasterBand(band + 1).getOverviewCount()) |
| 472 |
throw new BandAccessException("Wrong overview count"); |
| 473 |
return file.getRasterBand(band + 1).getOverview(overview).getRasterBandXSize(); |
| 474 |
} catch (GdalException e) {
|
| 475 |
throw new RasterDriverException(""); |
| 476 |
} |
| 477 |
} |
| 478 |
|
| 479 |
public int getOverviewHeight(int band, int overview) throws BandAccessException, RasterDriverException { |
| 480 |
if (band >= getBandCount())
|
| 481 |
throw new BandAccessException("Wrong band"); |
| 482 |
try {
|
| 483 |
if (overview >= file.getRasterBand(band + 1).getOverviewCount()) |
| 484 |
throw new BandAccessException("Wrong overview count"); |
| 485 |
return file.getRasterBand(band + 1).getOverview(overview).getRasterBandYSize(); |
| 486 |
} catch (GdalException e) {
|
| 487 |
throw new RasterDriverException(""); |
| 488 |
} |
| 489 |
} |
| 490 |
|
| 491 |
public boolean isOverviewsSupported() { |
| 492 |
return true; |
| 493 |
} |
| 494 |
|
| 495 |
public boolean isReproyectable() { |
| 496 |
return true; |
| 497 |
} |
| 498 |
|
| 499 |
public boolean needEnhanced() { |
| 500 |
return (getDataType()[0] != Buffer.TYPE_BYTE); |
| 501 |
//Desconozco pq raz?n estaba esta condici?n. Quiz?s haya que volver a a?adirla
|
| 502 |
//Eliminada 30/5/2013
|
| 503 |
//|| (getBandCount() == 1 && getDataType()[0] == Buffer.TYPE_BYTE));
|
| 504 |
} |
| 505 |
|
| 506 |
public String getProviderName() { |
| 507 |
return NAME;
|
| 508 |
} |
| 509 |
|
| 510 |
public void setStatus(RasterProvider provider) { |
| 511 |
if(provider instanceof GdalProvider) { |
| 512 |
//Not implemented yet
|
| 513 |
} |
| 514 |
} |
| 515 |
|
| 516 |
public TileServer getTileServer() {
|
| 517 |
if(tileServer == null) { |
| 518 |
DefaultRasterStore store = new DefaultRasterStore();
|
| 519 |
store.setProvider(this);
|
| 520 |
tileServer = new FileTileServer(store);
|
| 521 |
} |
| 522 |
return tileServer;
|
| 523 |
} |
| 524 |
|
| 525 |
public void close() { |
| 526 |
if(file != null){ |
| 527 |
file.dispose(); |
| 528 |
} |
| 529 |
try {
|
| 530 |
finalize(); |
| 531 |
} catch (Throwable e) { |
| 532 |
} |
| 533 |
} |
| 534 |
|
| 535 |
protected void finalize() throws Throwable { |
| 536 |
file = null;
|
| 537 |
viewRequest = null;
|
| 538 |
if(formatList != null) { |
| 539 |
for (int i = 0; i < formatList.length; i++) { |
| 540 |
formatList[i] = null;
|
| 541 |
} |
| 542 |
formatList = null;
|
| 543 |
} |
| 544 |
super.finalize();
|
| 545 |
} |
| 546 |
} |