svn-gvsig-desktop / trunk / org.gvsig.desktop / org.gvsig.desktop.compat.cdc / org.gvsig.fmap.dal / org.gvsig.fmap.dal.file / org.gvsig.fmap.dal.file.dbf / src / main / java / org / gvsig / fmap / dal / store / dbf / DBFFeatureWriter.java @ 40435
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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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/*
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* AUTHORS (In addition to CIT):
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* 2008 IVER T.I. S.A. {{Task}}
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*/
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package org.gvsig.fmap.dal.store.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 java.nio.charset.Charset; |
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import org.gvsig.fmap.dal.exception.DataException; |
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import org.gvsig.fmap.dal.exception.InitializeException; |
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import org.gvsig.fmap.dal.exception.WriteException; |
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import org.gvsig.fmap.dal.feature.Feature; |
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import org.gvsig.fmap.dal.feature.FeatureType; |
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import org.gvsig.fmap.dal.feature.exception.AttributeFeatureTypeNotSuportedException; |
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import org.gvsig.fmap.dal.store.dbf.utils.DbaseFileHeader; |
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import org.gvsig.fmap.dal.store.dbf.utils.DbaseFileWriter; |
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public class DBFFeatureWriter { |
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protected FeatureType featuretype;
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private DbaseFileWriter dbfWriter = null; |
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protected String name; |
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private File dbfFile; |
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private DbaseFileHeader myHeader;
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private FileChannel dbfChannel; |
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protected DBFFeatureWriter(String name) { |
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this.name= name;
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} |
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public void begin(DBFStoreParameters storeParameters, |
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FeatureType featureType, long numRows) throws DataException { |
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// TODO if is new set the langID
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try {
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myHeader = DbaseFileHeader.createDbaseHeader(featureType); |
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} catch (AttributeFeatureTypeNotSuportedException e1) {
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throw new WriteException(this.name, e1); |
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} |
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dbfFile = storeParameters.getDBFFile(); |
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dbfChannel = null;
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try {
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dbfChannel = (FileChannel) getWriteChannel(dbfFile
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.getAbsolutePath()); |
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} catch (IOException e) { |
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throw new WriteException(this.name, e); |
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} |
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try{
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this.dbfWriter = new DbaseFileWriter(myHeader, dbfChannel, true); |
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this.dbfWriter.setCharset(Charset.forName("ISO-8859-1")); |
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} catch (InitializeException e) {
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throw new WriteException(this.name, e); |
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} |
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this.featuretype=featureType;
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dbfFile = storeParameters.getDBFFile(); |
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} |
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public void append(Feature feature) throws DataException { |
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// TODO use FeatureProvider
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dbfWriter.append(feature); |
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} |
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public void end() throws DataException { |
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dbfWriter.close(); |
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} |
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public void dispose() { |
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dbfWriter = null;
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} |
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protected static WritableByteChannel getWriteChannel(String path) |
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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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/**
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* @return
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*/
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protected int getRowCount() { |
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return this.myHeader.getNumRecords(); |
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} |
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} |