root / trunk / libraries / libRaster / src / org / gvsig / raster / dataset / GeoRasterWriter.java @ 21345
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/* gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana
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*
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* Copyright (C) 2006 IVER T.I. and Generalitat Valenciana.
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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., 59 Temple Place - Suite 330, Boston, MA 02111-1307,USA.
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*/
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package org.gvsig.raster.dataset; |
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import java.awt.geom.AffineTransform; |
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import java.io.IOException; |
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import java.lang.reflect.Constructor; |
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import java.lang.reflect.InvocationTargetException; |
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import java.util.ArrayList; |
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import java.util.Iterator; |
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import java.util.Map; |
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import java.util.Set; |
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import java.util.TreeMap; |
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import org.cresques.cts.IProjection; |
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import org.gvsig.raster.dataset.io.RasterDriverException; |
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import org.gvsig.raster.dataset.io.features.WriteFileFormatFeatures; |
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import org.gvsig.raster.dataset.properties.DatasetColorInterpretation; |
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import org.gvsig.raster.util.RasterUtilities; |
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import org.gvsig.raster.util.extensionPoints.ExtensionPoint; |
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import org.gvsig.raster.util.extensionPoints.ExtensionPoints; |
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import org.gvsig.raster.util.extensionPoints.ExtensionPointsSingleton; |
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import es.gva.cit.jgdal.GdalException; |
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/**
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* Clase abstracta de la que heredan los drivers de escritura. Tiene los
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* m?todos abstractos que debe implementar cualquier driver de escritura
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* y las funcionalidades y opciones soportadas comunes a todos ellos.
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*
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* @author Nacho Brodin (nachobrodin@gmail.com)
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*/
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public abstract class GeoRasterWriter { |
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public static final int MODE_FILEWRITE = 1; |
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public static final int MODE_DATAWRITE = 2; |
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public static TreeMap fileFeature = new TreeMap(); |
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protected String outFileName = null; |
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protected String inFileName = null; |
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protected int sizeWindowX = 0; |
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protected int sizeWindowY = 0; |
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protected int ulX = 0; |
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protected int ulY = 0; |
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protected IDataWriter dataWriter = null; |
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protected int nBands = 0; |
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protected String ident = null; |
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protected String driver = null; |
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protected Params driverParams = null; |
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protected AffineTransform at = null; |
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protected int percent = 0; |
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protected int dataType = IBuffer.TYPE_BYTE; |
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protected IProjection proj = null; |
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protected DatasetColorInterpretation colorInterp = null; |
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/**
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* Obtiene la lista de extensiones registradas
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* @return Lista de extensiones registradas o null si no hay ninguna
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*/
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public static String[] getDriversExtensions(){ |
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ExtensionPoints extensionPoints = ExtensionPointsSingleton.getInstance(); |
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ExtensionPoint extensionPoint = (ExtensionPoint)extensionPoints.get("RasterWriter");
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if(extensionPoint == null) |
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return null; |
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String[] list = new String[extensionPoint.size()]; |
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Set values = extensionPoint.entrySet();
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int i = 0; |
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for (Iterator it = values.iterator(); it.hasNext(); ) { |
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list[i] = (String)((Map.Entry)it.next()).getKey(); |
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i++; |
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} |
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return list;
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} |
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/**
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* Obtiene la lista de extensiones de ficheros sobre los que se puede salvar en un determinado
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* tipo de datos. Como par?metro de la funci?n se especifica el tipo de datos sobre el que se
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* desea consultar.
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* Este m?todo consulta para cada driver registrado que extensiones soportan un tipoi
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* @return Lista de extensiones registradas que soportan el tipo de datos pasado por par?metro.
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*/
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public static ArrayList getExtensionsSupported(int dataType, int bands) throws RasterDriverException { |
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ExtensionPoints extensionPoints = ExtensionPointsSingleton.getInstance(); |
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ExtensionPoint extensionPoint = (ExtensionPoint)extensionPoints.get("RasterWriter");
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if(extensionPoint == null) |
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return null; |
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Set values = extensionPoint.entrySet();
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ArrayList result = new ArrayList(); |
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for (Iterator it = values.iterator(); it.hasNext(); ) { |
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Map.Entry entry = ((Map.Entry)it.next()); |
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String ext = (String)entry.getKey(); |
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Class writerClass = (Class)entry.getValue(); |
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Class [] args = {String.class}; |
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try {
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Constructor hazNuevo = writerClass.getConstructor(args);
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Object [] args2 = {ext}; |
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GeoRasterWriter grw = (GeoRasterWriter) hazNuevo.newInstance(args2); |
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if(grw.isSupportedThisExtension(ext, dataType, bands))
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result.add(ext); |
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} catch (SecurityException e) { |
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throw new RasterDriverException("Error SecurityException in open"); |
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} catch (NoSuchMethodException e) { |
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throw new RasterDriverException("Error NoSuchMethodException in open"); |
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} catch (IllegalArgumentException e) { |
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throw new RasterDriverException("Error IllegalArgumentException in open"); |
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} catch (InstantiationException e) { |
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throw new RasterDriverException("Error InstantiationException in open"); |
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} catch (IllegalAccessException e) { |
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throw new RasterDriverException("Error IllegalAccessException in open"); |
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} catch (InvocationTargetException e) { |
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throw new RasterDriverException("Error in open"); |
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} |
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} |
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return result;
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} |
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/**
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* Obtiene la lista de tipos de driver
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* @return Lista de tipos de driver registradas o null si no hay ninguno
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*/
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public static String[] getDriversType(){ |
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if (fileFeature.size() == 0) |
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return null; |
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String[] list = new String[fileFeature.size()]; |
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Set values = fileFeature.entrySet();
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int i = 0; |
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for (Iterator it=values.iterator(); it.hasNext(); ) { |
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list[i] = ((WriteFileFormatFeatures)((Map.Entry)it.next()).getValue()).getDriverName();
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i++; |
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} |
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return list;
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} |
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/**
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* Obtiene el tipo de driver a partir de la extensi?n
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* @param ext Extensi?n
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* @return Tipo
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*/
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public static String getDriverType(String ext){ |
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return ((WriteFileFormatFeatures)fileFeature.get(ext)).getDriverName();
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} |
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/**
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* Devuelve el n?mero de drivers soportados
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* @return N?mero de drivers soportados
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*/
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public static int getNDrivers() { |
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ExtensionPoints extensionPoints = ExtensionPointsSingleton.getInstance(); |
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ExtensionPoint extensionPoint = (ExtensionPoint)extensionPoints.get("RasterWriter");
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return extensionPoint.size();
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} |
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/**
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* Devuelve el n?mero de tipos de driver registrados
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* @return N?mero de tipos de driver soportados
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*/
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public static int getNTypes() { |
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return fileFeature.size();
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} |
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/**
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* Devuelve el identificador del driver
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* @return Identificador del driver
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*/
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public String getIdent() { |
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return ident;
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} |
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/**
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* Obtiene el nombre del driver.
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* @return Nombre del driver
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*/
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public String getDriverName() { |
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return driver;
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} |
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/**
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*
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* @return
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*/
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public String getDriverType() { |
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return driver;
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} |
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/**
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* Asigna el porcentaje de incremento. Esto es usado por el driver para actualizar
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* la variable percent
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* @param percent
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*/
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public void setPercent(int percent) { |
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this.percent = percent;
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} |
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/**
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* Porcentaje de escritura completado.
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* @return Entero con el porcentaje de escritura.
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*/
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public int getPercent() { |
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return percent;
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} |
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/**
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* Factoria para obtener escritores de los distintos tipos de raster.
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*
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* @param fName Nombre del fichero.
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* @return GeoRasterWriter, o null si hay problemas.
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*/
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public static GeoRasterWriter getWriter(String fName) throws NotSupportedExtensionException, RasterDriverException { |
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String ext = RasterUtilities.getExtensionFromFileName(fName);
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GeoRasterWriter grw = null;
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ExtensionPoints extensionPoints = ExtensionPointsSingleton.getInstance(); |
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ExtensionPoint extensionPoint = (ExtensionPoint)extensionPoints.get("RasterWriter");
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if(extensionPoint.get(ext) == null) |
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return grw;
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Class clase = (Class) extensionPoint.get(ext); |
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Class [] args = {String.class}; |
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try {
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Constructor hazNuevo = clase.getConstructor(args);
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Object [] args2 = {fName}; |
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grw = (GeoRasterWriter) hazNuevo.newInstance(args2); |
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} catch (SecurityException e) { |
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throw new RasterDriverException("Error SecurityException in open"); |
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} catch (NoSuchMethodException e) { |
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throw new RasterDriverException("Error NoSuchMethodException in open"); |
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} catch (IllegalArgumentException e) { |
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throw new RasterDriverException("Error IllegalArgumentException in open"); |
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} catch (InstantiationException e) { |
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throw new RasterDriverException("Error InstantiationException in open"); |
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} catch (IllegalAccessException e) { |
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throw new RasterDriverException("Error IllegalAccessException in open"); |
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} catch (InvocationTargetException e) { |
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throw new NotSupportedExtensionException("Error in open"); |
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} |
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return grw;
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} |
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/**
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* Factoria para obtener escritores de los distintos tipos de raster.
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*
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* @param fName Nombre del fichero.
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* @return GeoRasterWriter, o null si hay problemas.
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*/
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public static GeoRasterWriter getWriter(IDataWriter dataWriter, |
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String outFileName,
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int nBands,
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AffineTransform at,
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int outSizeX,
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int outSizeY,
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int dataType,
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Params params, |
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IProjection proj) throws NotSupportedExtensionException, RasterDriverException {
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return GeoRasterWriter.getWriter(dataWriter, outFileName, nBands, at, outSizeX, outSizeY, dataType, params, proj, true); |
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} |
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/**
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* Factoria para obtener escritores de los distintos tipos de raster.
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*
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* @param fName Nombre del fichero.
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* @return GeoRasterWriter, o null si hay problemas.
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*/
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public static GeoRasterWriter getWriter(IDataWriter dataWriter, |
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String outFileName,
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int nBands,
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AffineTransform at,
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int outSizeX,
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int outSizeY,
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int dataType,
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Params params, |
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IProjection proj, |
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boolean geo) throws NotSupportedExtensionException, RasterDriverException { |
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String ext = outFileName.toLowerCase().substring(outFileName.lastIndexOf('.')+1); |
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GeoRasterWriter grw = null;
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ExtensionPoints extensionPoints = ExtensionPointsSingleton.getInstance(); |
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ExtensionPoint extensionPoint = (ExtensionPoint)extensionPoints.get("RasterWriter");
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if(extensionPoint.get(ext) == null) |
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return grw;
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Class clase = (Class) extensionPoint.get(ext); |
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Class [] args = {IDataWriter.class, String.class, Integer.class, AffineTransform.class, |
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Integer.class, Integer.class, Integer.class, Params.class, IProjection.class, Boolean.class}; |
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try {
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Constructor hazNuevo = clase.getConstructor(args);
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Object [] args2 = {dataWriter, outFileName, new Integer(nBands), at, |
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new Integer(outSizeX), new Integer(outSizeY), new Integer(dataType), |
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params, proj, new Boolean(geo)}; |
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grw = (GeoRasterWriter) hazNuevo.newInstance(args2); |
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} catch (SecurityException e) { |
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throw new RasterDriverException("Error SecurityException in open"); |
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} catch (NoSuchMethodException e) { |
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throw new RasterDriverException("Error NoSuchMethodException in open"); |
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} catch (IllegalArgumentException e) { |
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throw new RasterDriverException("Error IllegalArgumentException in open"); |
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} catch (InstantiationException e) { |
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throw new RasterDriverException("Error InstantiationException in open"); |
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} catch (IllegalAccessException e) { |
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throw new RasterDriverException("Error IllegalAccessException in open"); |
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} catch (InvocationTargetException e) { |
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throw new NotSupportedExtensionException("Error in open. Problemas con las librer?as nativas."); |
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} |
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return grw;
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} |
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/**
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* Obtiene los par?metros del driver.
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* @return WriterParams
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*/
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public Params getParams() {
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return driverParams;
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} |
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/**
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* Asigna los par?metros del driver modificados por el cliente.
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* @param Params
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*/
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public void setParams(Params params) { |
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this.driverParams = params;
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} |
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/**
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* Realiza la funci?n de compresi?n a partir de un GeoRasterFile.
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* @throws IOException
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*/
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public abstract void fileWrite() throws IOException, InterruptedException; |
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/**
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* Realiza la funci?n de compresi?n a partir de los datos pasados por el cliente.
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* @throws IOException
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*/
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public abstract void dataWrite() throws IOException, InterruptedException; |
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/**
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* Cierra el driver
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*/
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public abstract void writeClose(); |
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/**
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* Cancela el grabado de datos
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*/
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public abstract void writeCancel(); |
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/**
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* A?ade la proyecci?n Wkt con la que salvar.
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* @param wkt
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* @throws GdalException
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*/
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public abstract void setWkt(String wkt); |
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/**
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* Asigna la interpretaci?n de color para el fichero de salida.
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* @param colorInterp Interpretaci?n de color
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*/
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public void setColorBandsInterpretation(String[] colorInterp) { |
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if(colorInterp != null) { |
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this.colorInterp = new DatasetColorInterpretation(); |
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this.colorInterp.initColorInterpretation(colorInterp.length);
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for (int i = 0; i < colorInterp.length; i++) { |
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this.colorInterp.setColorInterpValue(i, colorInterp[i]);
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} |
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} |
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} |
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/**
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* M?todo que pregunta si la extensi?n pasada por par?metro est? soportada
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* con el tipo y n?mero de bandas indicadas.
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* @param dataType Tipo de dato
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* @param bands N?mero de bandas
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* @param extensi?n
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* @return true si est? soportada y false si no lo est?
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*/
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public boolean isSupportedThisExtension(String ext, int dataType, int bands) { |
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WriteFileFormatFeatures features = (WriteFileFormatFeatures) fileFeature.get(ext); |
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if (features == null) |
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return false; |
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int[] bandsSupported = features.getNBandsSupported(); |
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for (int i = 0; i < bandsSupported.length; i++) { |
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if (bandsSupported[i] == -1) |
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break;
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if (bandsSupported[i] >= bands)
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break;
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return false; |
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} |
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int[] dt = features.getDataTypesSupported(); |
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for (int i = 0; i < dt.length; i++) |
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if (dataType == dt[i])
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return true; |
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return false; |
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} |
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} |