gvsig-raster / org.gvsig.raster.cache / trunk / org.gvsig.raster.cache / org.gvsig.raster.cache.lib.impl / deprecated / buffer / impl / io / BufferMultiDataSourceImpl.java @ 1939
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package org.gvsig.raster.cache.buffer.impl.io; |
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import java.io.IOException; |
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import org.gvsig.jgdal.GdalException; |
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import org.gvsig.raster.cache.buffer.Buffer; |
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import org.gvsig.raster.cache.buffer.BufferDataSource; |
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import org.gvsig.raster.cache.buffer.PxTile; |
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import org.gvsig.raster.cache.buffer.exception.OperationNotSupportedException; |
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import org.gvsig.raster.cache.buffer.exception.ProcessInterruptedException; |
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import org.gvsig.raster.cache.buffer.impl.PxTileImpl; |
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/**
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* Data Server for read only buffers.
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*
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* @author Nacho Brodin nachobrodin@gmail.com
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*/
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public class BufferMultiDataSourceImpl extends BufferDataSourceImpl implements BufferDataSource { |
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private GdalRead[] reader = null; |
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private String[] path = null; |
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private PxTile window = null; |
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private int selectedBand = -1; |
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/**
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* This constructor is useful to use this class with a image reference.
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* Typically ReadOnlyCache
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* @param path
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* Path to the file
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* @throws IOException
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*/
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public BufferMultiDataSourceImpl(String[] path) throws IOException { |
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this.path = path;
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reader = new GdalRead[path.length];
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int bandCount = 0; |
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try {
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for (int i = 0; i < path.length; i++) { |
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reader[i] = new GdalRead(path[i]);
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bandCount += reader[i].getBandCount(); |
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} |
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} catch (GdalException e) {
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throw new IOException(); |
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} |
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super.setWidth(reader[0].getWidth()); |
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super.setHeight(reader[0].getHeight()); |
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super.setDataType(reader[0].getRasterBufTypeFromGdalType(reader[0].getDataType())); |
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super.setBandCount(bandCount);
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window = new PxTileImpl(0, 0, reader[0].getWidth(), reader[0].getHeight()); |
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} |
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/**
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* This constructor is useful to use this class with a image reference
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* .Typically ReadOnlyCache.
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* @param path
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* Path to the file
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* @throws IOException
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*/
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public BufferMultiDataSourceImpl(String[] path, PxTileImpl window) throws IOException { |
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this.path = path;
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this.window = window;
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reader = new GdalRead[path.length];
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int bandCount = 0; |
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try {
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for (int i = 0; i < path.length; i++) { |
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reader[i] = new GdalRead(path[i]);
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bandCount += reader[i].getBandCount(); |
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} |
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} catch (GdalException e) {
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throw new IOException(); |
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} |
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super.setWidth(window.getWidth());
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super.setHeight(window.getHeight());
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super.setDataType(reader[0].getRasterBufTypeFromGdalType(reader[0].getDataType())); |
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super.setBandCount(bandCount);
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} |
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/*
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* (non-Javadoc)
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* @see org.cachete.buffer.IBufferDataSource#close()
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*/
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public void close() throws IOException { |
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for (int i = 0; i < reader.length; i++) { |
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if(reader[i] != null) |
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try {
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reader[i].close(); |
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reader[i] = null;
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} catch (GdalException e) {
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throw new IOException(); |
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} |
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} |
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} |
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/*
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* (non-Javadoc)
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* @see org.gvsig.raster.cache.buffer.BufferDataSource#getPath()
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*/
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public String[] getPath() { |
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return path;
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} |
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/*
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* (non-Javadoc)
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* @see org.gvsig.raster.cache.buffer.BufferDataSource#setPath(java.lang.String[])
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*/
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public void setPath(String[] path) { |
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this.path = path;
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} |
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/*
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* (non-Javadoc)
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* @see org.gvsig.raster.cache.buffer.BufferDataSource#setPath(java.lang.String)
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*/
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public void setPath(String path) { |
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this.path = new String[]{path}; |
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} |
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/*
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* (non-Javadoc)
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* @see org.gvsig.raster.buffer.rocache.ICacheDataSource#loadSelectedBand(org.gvsig.raster.buffer.IRasterBuffer, org.gvsig.raster.buffer.rocache.ReadOnlyStripe)
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*/
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public void loadSelectedBand(Buffer rb, PxTile stripe) throws IOException, ProcessInterruptedException, OperationNotSupportedException { |
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loadPage(rb, stripe, selectedBand); |
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} |
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/*
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* (non-Javadoc)
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* @see org.gvsig.raster.buffer.rocache.ICacheDataSource#loadPage(org.gvsig.raster.buffer.IRasterBuffer, org.gvsig.raster.buffer.rocache.ReadOnlyStripe)
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*/
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public void loadPage(Buffer rb, PxTile stripe) throws IOException, ProcessInterruptedException, OperationNotSupportedException { |
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try {
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int dataType = reader[0].getDataType(); |
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if (dataType == GdalRead.GDT_Byte) {
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int last = 0; |
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byte[][][] buf = new byte[rb.getBandCount()][][]; |
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for (int i = 0; i < reader.length; i++) { |
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Object dataObj = reader[0].readBlock((int)stripe.getX() + window.getX(), (int)stripe.getY() + window.getY(), (int)stripe.getWidth(), (int)stripe.getHeight()); |
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byte[][][] b = (byte[][][])dataObj; |
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int k = 0; |
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for (int j = last; j < b.length; j++) { |
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buf[j] = b[k]; |
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k ++; |
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} |
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last += b.length; |
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} |
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for (int iBand = 0; iBand < buf.length; iBand++) |
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for (int iLine = 0; iLine < buf[iBand].length; iLine++) |
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for (int iColumn = 0; iColumn < buf[iBand][iLine].length; iColumn++) |
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rb.setElem(iLine, iColumn, iBand, buf[iBand][iLine][iColumn]); |
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} else if (dataType == GdalRead.GDT_CInt16 || dataType == GdalRead.GDT_Int16 || dataType == GdalRead.GDT_UInt16) { |
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int last = 0; |
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short[][][] buf = new short[rb.getBandCount()][][]; |
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for (int i = 0; i < reader.length; i++) { |
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Object dataObj = reader[0].readBlock((int)stripe.getX() + window.getX(), (int)stripe.getY() + window.getY(), (int)stripe.getWidth(), (int)stripe.getHeight()); |
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short[][][] b = (short[][][])dataObj; |
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int k = 0; |
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for (int j = last; j < b.length; j++) { |
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buf[j] = b[k]; |
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k ++; |
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} |
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last += b.length; |
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} |
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for (int iBand = 0; iBand < buf.length; iBand++) |
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for (int iLine = 0; iLine < buf[iBand].length; iLine++) |
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for (int iColumn = 0; iColumn < buf[iBand][iLine].length; iColumn++) |
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rb.setElem(iLine, iColumn, iBand, buf[iBand][iLine][iColumn]); |
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} else if (dataType == GdalRead.GDT_CInt32 || dataType == GdalRead.GDT_Int32 || dataType == GdalRead.GDT_UInt32) { |
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int last = 0; |
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int[][][] buf = new int[rb.getBandCount()][][]; |
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for (int i = 0; i < reader.length; i++) { |
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Object dataObj = reader[0].readBlock((int)stripe.getX() + window.getX(), (int)stripe.getY() + window.getY(), (int)stripe.getWidth(), (int)stripe.getHeight()); |
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int[][][] b = (int[][][])dataObj; |
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int k = 0; |
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for (int j = last; j < b.length; j++) { |
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buf[j] = b[k]; |
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k ++; |
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} |
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last += b.length; |
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} |
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for (int iBand = 0; iBand < buf.length; iBand++) |
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for (int iLine = 0; iLine < buf[iBand].length; iLine++) |
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for (int iColumn = 0; iColumn < buf[iBand][iLine].length; iColumn++) |
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rb.setElem(iLine, iColumn, iBand, buf[iBand][iLine][iColumn]); |
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} else if(dataType == GdalRead.GDT_Float32 || dataType == GdalRead.GDT_CFloat32) { |
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int last = 0; |
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float[][][] buf = new float[rb.getBandCount()][][]; |
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for (int i = 0; i < reader.length; i++) { |
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Object dataObj = reader[0].readBlock((int)stripe.getX() + window.getX(), (int)stripe.getY() + window.getY(), (int)stripe.getWidth(), (int)stripe.getHeight()); |
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float[][][] b = (float[][][])dataObj; |
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int k = 0; |
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for (int j = last; j < b.length; j++) { |
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buf[j] = b[k]; |
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k ++; |
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} |
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last += b.length; |
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} |
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for (int iBand = 0; iBand < buf.length; iBand++) |
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for (int iLine = 0; iLine < buf[iBand].length; iLine++) |
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for (int iColumn = 0; iColumn < buf[iBand][iLine].length; iColumn++) |
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rb.setElem(iLine, iColumn, iBand, buf[iBand][iLine][iColumn]); |
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} else if(dataType == GdalRead.GDT_Float64 || dataType == GdalRead.GDT_CFloat64) { |
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int last = 0; |
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double[][][] buf = new double[rb.getBandCount()][][]; |
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for (int i = 0; i < reader.length; i++) { |
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Object dataObj = reader[0].readBlock((int)stripe.getX() + window.getX(), (int)stripe.getY() + window.getY(), (int)stripe.getWidth(), (int)stripe.getHeight()); |
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double[][][] b = (double[][][])dataObj; |
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int k = 0; |
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for (int j = last; j < b.length; j++) { |
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buf[j] = b[k]; |
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k ++; |
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} |
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last += b.length; |
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} |
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for (int iBand = 0; iBand < buf.length; iBand++) |
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for (int iLine = 0; iLine < buf[iBand].length; iLine++) |
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for (int iColumn = 0; iColumn < buf[iBand][iLine].length; iColumn++) |
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rb.setElem(iLine, iColumn, iBand, buf[iBand][iLine][iColumn]); |
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} |
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} catch (GdalException e) {
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throw new IOException("Error reading block."); |
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} |
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} |
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/*
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* (non-Javadoc)
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* @see org.fv.raster.buffer.rocache.ICacheDataSource#loadPage(org.fv.raster.buffer.IRasterBuffer, org.fv.raster.buffer.rocache.ReadOnlyStripe, int)
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*/
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public void loadPage(Buffer rb, PxTile stripe, int iBand) throws IOException, ProcessInterruptedException, OperationNotSupportedException { |
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if(rb.getBandCount() != 1) |
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throw new IOException("Wrong buffer"); |
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int dataType = reader[0].getDataType(); |
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int readerNum = 0; |
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int bandInsideReader = 0; |
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int accum = 0; |
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for (int i = 0; i < reader.length; i++) { |
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bandInsideReader = iBand - accum; |
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accum += reader[i].getBandCount(); |
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if(accum > iBand) {
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readerNum = i; |
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break;
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} |
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} |
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try {
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Object dataObj = reader[readerNum].readBlock((int)stripe.getX() + window.getX(), (int)stripe.getY() + window.getY(), (int)stripe.getWidth(), (int)stripe.getHeight(), bandInsideReader); |
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if (dataType == GdalRead.GDT_Byte) {
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byte[][] buf = (byte[][])dataObj; |
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for (int iLine = 0; iLine < buf.length; iLine++) |
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for (int iColumn = 0; iColumn < buf[iLine].length; iColumn++) |
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rb.setElem(iLine, iColumn, 0, buf[iLine][iColumn]);
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} else if (dataType == GdalRead.GDT_CInt16 || dataType == GdalRead.GDT_Int16 || dataType == GdalRead.GDT_UInt16) { |
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short[][] buf = (short[][])dataObj; |
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for (int iLine = 0; iLine < buf.length; iLine++) |
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for (int iColumn = 0; iColumn < buf[iLine].length; iColumn++) |
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rb.setElem(iLine, iColumn, 0, buf[iLine][iColumn]);
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} else if (dataType == GdalRead.GDT_CInt32 || dataType == GdalRead.GDT_Int32 || dataType == GdalRead.GDT_UInt32) { |
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int[][] buf = (int[][])dataObj; |
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for (int iLine = 0; iLine < buf.length; iLine++) |
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for (int iColumn = 0; iColumn < buf[iLine].length; iColumn++) |
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rb.setElem(iLine, iColumn, 0, buf[iLine][iColumn]);
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} else if(dataType == GdalRead.GDT_Float32 || dataType == GdalRead.GDT_CFloat32) { |
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float[][] buf = (float[][])dataObj; |
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for (int iLine = 0; iLine < buf.length; iLine++) |
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for (int iColumn = 0; iColumn < buf[iLine].length; iColumn++) |
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rb.setElem(iLine, iColumn, iBand, buf[iLine][iColumn]); |
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} else if(dataType == GdalRead.GDT_Float64 || dataType == GdalRead.GDT_CFloat64) { |
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double[][] buf = (double[][])dataObj; |
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for (int iLine = 0; iLine < buf.length; iLine++) |
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for (int iColumn = 0; iColumn < buf[iLine].length; iColumn++) |
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rb.setElem(iLine, iColumn, 0, buf[iLine][iColumn]);
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} |
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} catch (GdalException e) {
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throw new IOException("Error reading block."); |
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} |
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} |
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/* (non-Javadoc)
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* @see org.gvsig.fmap.dataaccess.cache.ICacheDataSource#loadPage(int, org.gvsig.fmap.dataaccess.cache.PageBuffer)
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*/
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public void loadPage(Buffer buf, String inFileName) { |
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for (int i = 0; i < buf.getBandCount(); i++) |
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loadBand(buf.getBand(i), inFileName + i); |
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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 BufferDataSource clone() {
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try {
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BufferMultiDataSourceImpl result = new BufferMultiDataSourceImpl(path, (PxTileImpl)window);
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result.selectedBand = selectedBand; |
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return result;
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} catch (IOException e) { |
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return null; |
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} |
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} |
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} |