gvsig-raster / org.gvsig.raster / trunk / org.gvsig.raster / org.gvsig.raster.lib / org.gvsig.raster.lib.impl / src / main / java / org / gvsig / raster / impl / datastruct / DatasetBandImpl.java @ 4439
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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.impl.datastruct; |
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import java.io.File; |
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import java.net.URI; |
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import java.net.URISyntaxException; |
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import java.util.ArrayList; |
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import java.util.List; |
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import org.gvsig.fmap.dal.coverage.dataset.Buffer; |
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import org.gvsig.fmap.dal.coverage.datastruct.DatasetBand; |
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import org.gvsig.tools.ToolsLocator; |
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import org.gvsig.tools.dynobject.DynStruct; |
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import org.gvsig.tools.persistence.PersistenceManager; |
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import org.gvsig.tools.persistence.PersistentState; |
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import org.gvsig.tools.persistence.exception.PersistenceException; |
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import org.slf4j.Logger; |
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import org.slf4j.LoggerFactory; |
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/**
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* Clase que representa a una banda de un fichero.
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* @author Nacho Brodin (nachobrodin@gmail.com)
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*/
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public class DatasetBandImpl implements DatasetBand { |
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public static final String PERSISTENT_NAME = "DatasetBand_Persistent"; |
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public static final String PERSISTENT_DESCRIPTION = "DatasetBand Persistent"; |
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private final Logger logger = LoggerFactory.getLogger(DatasetBandImpl.class); |
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//Nombre del fichero al que pertenece la banda
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private String fileName = ""; |
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//Lista de nombre de otros ficheros que forman la banda. Esto es util para CompositeDataset que est? compuesto por un mosaico de ficheros.
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private List<String> additionalName = new ArrayList<String>(); |
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//Posici?n en el fichero de la banda
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private int position = -1; |
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//Tipo de dato de la banda
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private int dataType = Buffer.TYPE_BYTE; |
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//lista de bandas del buffer donde se dibuja esta banda de imagen. Cada elemento
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//del vector es un n?mero que corresponde con el n?mero de banda del buffer donde se escribe esta
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private int[] rasterBufBandToDrawList = null; |
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//
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private int nBandsInThisProvider = 0; |
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/**
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* Constructor
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*/
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public DatasetBandImpl() {
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} |
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/**
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* Creates a new <code>DatasetBand</code>
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* @param fileName
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* File name
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* @param position
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* Position of this band inside the provider
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* @param dataType
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* Data type
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* @param nBands
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* Number of bands of the provider
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*/
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public DatasetBandImpl(String fileName, int position, int dataType, int nBands){ |
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setFileName(fileName); |
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setPosition(position); |
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setDataType(dataType); |
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nBandsInThisProvider = nBands; |
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} |
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/**
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* Creates a new <code>DatasetBand</code>
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* @param uri
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* URI
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* @param position
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* Position of this band inside the provider
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* @param dataType
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* Data type
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* @param nBands
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* Number of bands of the provider
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*/
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public DatasetBandImpl(URI uri, int position, int dataType, int nBands){ |
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setFileName(uri.getPath()); |
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setPosition(position); |
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setDataType(dataType); |
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nBandsInThisProvider = nBands; |
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} |
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/*
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* (non-Javadoc)
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* @see java.lang.Object#clone()
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*/
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public Object clone() { |
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DatasetBandImpl result = new DatasetBandImpl(fileName, position, dataType, nBandsInThisProvider);
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if(rasterBufBandToDrawList != null) { |
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int[] drawBands = new int[rasterBufBandToDrawList.length]; |
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for (int i = 0; i < rasterBufBandToDrawList.length; i++) |
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drawBands[i] = rasterBufBandToDrawList[i]; |
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result.rasterBufBandToDrawList = drawBands; |
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} |
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return result;
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} |
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/**
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* Resetea la asignaci?n de dibujado de las bandas de la imagen
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* sobre el DataImage cuando se hace un update para esta banda.
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*/
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public void clearDrawableBands(){ |
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rasterBufBandToDrawList = null;
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} |
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//******************************
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//Setters and Getters
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//******************************
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/**
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* Obtiene las banda del RasterBuf sobre la que se pinta
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* este objeto banda
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* @return bandas del RasterBuf
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*/
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public int[] getBufferBandListToDraw() { |
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return rasterBufBandToDrawList;
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} |
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/**
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* Obtiene las banda del RasterBuf sobre la que se pinta
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* este objeto banda
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* @return bandas del RasterBuf
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*/
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public int[] getLocalBufferBandListToDraw() { |
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return rasterBufBandToDrawList;
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} |
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/**
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* Dice si la banda se est? dibujando en el buffers de salida.
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* @return true si la banda se est? dibujando y false si no se est? haciendo
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*/
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public boolean isDrawing(){ |
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if(this.rasterBufBandToDrawList == null) |
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return false; |
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return true; |
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} |
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/**
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* Adds a band of the output buffer where the input band is drawn. <code>rasterBufBandToDraw</code>
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* is the number of band of the output buffer. This number is added to the list of numbers.
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* @param rasterBufBandToDraw number of band of the <code>Buffer</code>
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*/
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public void addPositionToDrawInBuffer(int rasterBufBandToDraw) { |
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if (rasterBufBandToDrawList == null) { |
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rasterBufBandToDrawList = new int[1]; |
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rasterBufBandToDrawList[0] = rasterBufBandToDraw;
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} else {
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int[] auxList = new int[rasterBufBandToDrawList.length + 1]; |
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for (int i = 0; i < rasterBufBandToDrawList.length; i++) |
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auxList[i] = rasterBufBandToDrawList[i]; |
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auxList[rasterBufBandToDrawList.length] = rasterBufBandToDraw; |
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rasterBufBandToDrawList = auxList; |
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} |
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} |
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/**
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* Obtiene el nombre del fichero al que pertenece la banda
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* @return String con el nombre del fichero al
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* que pertenece la banda
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*/
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public String getFileName() { |
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return fileName;
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} |
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/**
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* Asigna el nombre del fichero al que pertenece la banda
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* @param fileName String con el nombre del fichero al
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* que pertenece la banda
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*/
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public void setFileName(String fileName) { |
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this.fileName = fileName;
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} |
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/**
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* Obtiene la posici?n de la banda en el fichero
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* @return entero con la posici?n de la banda en el fichero
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*/
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public int getPosition() { |
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return position;
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} |
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/**
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* Asigna la posici?n de la banda en el fichero
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* @param position Posici?n de la banda en el fichero
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*/
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public void setPosition(int position) { |
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this.position = position;
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} |
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/**
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* Obtiene el tipo de dato de la banda
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* @return entero con el tipo de dato
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*/
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public int getDataType() { |
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return dataType;
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} |
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/**
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* Asigna el tipo de dato de la banda
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* @param datatype entero con el tipo de dato de la banda
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*/
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public void setDataType(int dataType) { |
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this.dataType = dataType;
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} |
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/**
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* Asigna un nombre de fichero adicional al principal. Esto es util para
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* mosaicos de raster donde una banda est? compuesta por multiples ficheros.
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*/
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public void setAdditionalName(String fileName) { |
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additionalName.add(fileName); |
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} |
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/**
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* Obtiene la lista de nombres de fichero adicionales.
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* @return String[]
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*/
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public String[] getAdditionalName() { |
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return (String[]) additionalName.toArray(); |
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} |
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@SuppressWarnings("unchecked") |
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public void loadFromState(PersistentState state) |
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throws PersistenceException {
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List<String> aux = state.getList("additionalName"); |
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this.additionalName = new ArrayList<String>(); |
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this.additionalName.addAll(aux);
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try {
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URI uri = state.getURI("fileName"); |
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if(uri != null) { |
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fileName = uri.toString(); |
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if (uri.getScheme() != null && "FILE".equalsIgnoreCase(uri.getScheme())) { |
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File file = new File(uri); |
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if (file.isFile() && file.exists()) {
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fileName = file.getAbsolutePath(); |
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} else {
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fileName = uri.getPath(); |
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} |
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} |
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} |
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} catch(ClassCastException e) { |
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fileName = state.getString("fileName");
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} |
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this.position = state.getInt("position"); |
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this.dataType = state.getInt("dataType"); |
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this.nBandsInThisProvider = state.getInt("nBandsInThisProvider"); |
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this.rasterBufBandToDrawList = (int[])state.getIntArray("rasterBufBandToDrawList"); |
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} |
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public void saveToState(PersistentState state) throws PersistenceException { |
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try {
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File file = new File(fileName); |
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if(file.exists())
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state.set("fileName", file.toURI());
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else
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state.set("fileName", new URI(fileName)); |
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} catch (URISyntaxException e) { |
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logger.debug("Error saving the URI " + fileName);
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//Es mejor no propagar la excepci?n.
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//Mejor que solo afecte al fichero que a todo el proyecto
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//throw new PersistenceException(e);
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} |
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state.set("position", position);
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state.set("dataType", dataType);
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state.set("nBandsInThisProvider", nBandsInThisProvider);
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state.set("additionalName", additionalName);
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state.set("rasterBufBandToDrawList", rasterBufBandToDrawList);
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} |
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/**
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* Register persistence
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*/
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public static void registerPersistence() { |
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PersistenceManager manager = ToolsLocator.getPersistenceManager(); |
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DynStruct definition = manager.getDefinition(PERSISTENT_NAME); |
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if( definition == null ) { |
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definition = manager.addDefinition( |
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DatasetBandImpl.class, |
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PERSISTENT_NAME, |
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PERSISTENT_DESCRIPTION, |
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null,
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null
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); |
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definition.addDynFieldURI("fileName").setMandatory(false); |
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definition.addDynFieldInt("position").setMandatory(false); |
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definition.addDynFieldList("additionalName").setClassOfItems(String.class).setMandatory(false); |
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definition.addDynFieldList("rasterBufBandToDrawList").setClassOfItems(int.class).setMandatory(false); |
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definition.addDynFieldInt("dataType").setMandatory(false); |
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definition.addDynFieldInt("nBandsInThisProvider").setMandatory(false); |
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} |
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} |
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} |