root / trunk / libraries / libDataSourceBaseDrivers / src / org / gvsig / data / datastores / vectorial / driver / dbf / DBFFeaturesWriter.java @ 19673
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package org.gvsig.data.datastores.vectorial.driver.dbf; |
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import java.io.File; |
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import java.io.IOException; |
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import java.io.RandomAccessFile; |
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import java.nio.channels.FileChannel; |
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import java.nio.channels.WritableByteChannel; |
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import org.gvsig.data.datastores.vectorial.driver.IDriver; |
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import org.gvsig.data.datastores.vectorial.driver.IFeaturesWriter; |
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import org.gvsig.data.datastores.vectorial.driver.dbf.filedbf.DbaseFileHeader; |
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import org.gvsig.data.datastores.vectorial.driver.dbf.filedbf.DbaseFileWriter; |
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import org.gvsig.data.datastores.vectorial.driver.exception.UnsupportedEncodingDriverException; |
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import org.gvsig.data.exception.InitializeWriterException; |
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import org.gvsig.data.exception.OpenException; |
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import org.gvsig.data.exception.WriteException; |
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import org.gvsig.data.vectorial.IFeature; |
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import org.gvsig.data.vectorial.IFeatureType; |
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public class DBFFeaturesWriter implements IFeaturesWriter { |
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private DbaseFileWriter dbfWrite;
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private DbaseFileHeader myHeader;
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private IFeatureType featureType;
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private File dbfFile; |
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private int numRows; |
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public void setFile(File file){ |
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dbfFile=file; |
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} |
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public void init(IDriver driver) { |
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DBFDriverParameters parameters=(DBFDriverParameters)driver.getParameters(); |
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dbfFile=((DBFDriverParameters)parameters).getDBFFile(); |
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} |
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public void postProcess() throws OpenException, WriteException { |
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try {
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myHeader.setNumRecords(numRows); |
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dbfWrite = new DbaseFileWriter(myHeader,
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(FileChannel) getWriteChannel(dbfFile.getAbsolutePath()));
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} catch (IOException e) { |
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// throw new StopWriterVisitorException(getName(),e);
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} |
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} |
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public void preProcess() throws OpenException, InitializeWriterException { |
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myHeader = DbaseFileHeader.createDbaseHeader(featureType); |
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try {
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dbfWrite = new DbaseFileWriter(myHeader,
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(FileChannel) getWriteChannel(dbfFile.getAbsolutePath()));
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} catch (IOException e) { |
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throw new InitializeWriterException("DBF Feature Writer",e); |
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} |
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} |
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public void insertFeature(IFeature feature) throws WriteException, UnsupportedEncodingDriverException { |
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dbfWrite.write(feature); |
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numRows++; |
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} |
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public void updateFeatureType(IFeatureType featureType) { |
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this.featureType=featureType;
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} |
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protected static WritableByteChannel getWriteChannel(String path) throws IOException { |
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WritableByteChannel channel;
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File f = new File(path); |
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if (!f.exists()) {
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// System.out.println("Creando fichero " + f.getAbsolutePath());
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if (!f.createNewFile()) {
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System.err.print("Error al crear el fichero " |
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+ f.getAbsolutePath()); |
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throw new IOException("Cannot create file " + f); |
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} |
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} |
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RandomAccessFile raf = new RandomAccessFile(f, "rw"); |
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channel = raf.getChannel(); |
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return channel;
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} |
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public static void create(DBFDriverParameters parameters, IFeatureType featureType)throws OpenException, InitializeWriterException { |
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DbaseFileHeader myHeader = DbaseFileHeader.createDbaseHeader(featureType); |
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try {
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DbaseFileWriter dbfWrite = new DbaseFileWriter(myHeader,
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(FileChannel) getWriteChannel(parameters.getDBFFile().getAbsolutePath()));
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} catch (IOException e) { |
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throw new InitializeWriterException("DBF Feature Writer",e); |
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} |
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} |
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} |