root / branches / v2_0_0_prep / libraries / libFMap_dalfile / src / org / gvsig / fmap / dal / store / dbf / DBFStoreProvider.java @ 25213
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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.text.DateFormat; |
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import java.text.ParseException; |
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import java.util.ArrayList; |
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import java.util.Date; |
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import java.util.Iterator; |
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import java.util.List; |
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import java.util.Locale; |
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import org.gvsig.fmap.dal.DALLocator; |
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import org.gvsig.fmap.dal.DataManager; |
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import org.gvsig.fmap.dal.DataServerExplorer; |
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import org.gvsig.fmap.dal.DataTypes; |
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import org.gvsig.fmap.dal.exception.CloseException; |
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import org.gvsig.fmap.dal.exception.DataException; |
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import org.gvsig.fmap.dal.exception.FileNotFoundException; |
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import org.gvsig.fmap.dal.exception.InitializeException; |
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import org.gvsig.fmap.dal.exception.OpenException; |
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import org.gvsig.fmap.dal.exception.ReadException; |
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import org.gvsig.fmap.dal.exception.UnsupportedVersionException; |
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import org.gvsig.fmap.dal.feature.EditableFeatureType; |
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import org.gvsig.fmap.dal.feature.Feature; |
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import org.gvsig.fmap.dal.feature.FeatureAttributeDescriptor; |
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import org.gvsig.fmap.dal.feature.FeatureQuery; |
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import org.gvsig.fmap.dal.feature.FeatureSet; |
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import org.gvsig.fmap.dal.feature.FeatureType; |
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import org.gvsig.fmap.dal.feature.exception.PerformEditingException; |
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import org.gvsig.fmap.dal.feature.exception.UnknowDataTypeException; |
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import org.gvsig.fmap.dal.feature.impl.DefaultFeatureType; |
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import org.gvsig.fmap.dal.feature.spi.AbstractFeatureStoreProvider; |
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import org.gvsig.fmap.dal.feature.spi.FeatureData; |
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import org.gvsig.fmap.dal.feature.spi.FeatureReferenceProviderServices; |
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import org.gvsig.fmap.dal.feature.spi.FeatureSetProvider; |
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import org.gvsig.fmap.dal.feature.spi.FeatureStoreProvider; |
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import org.gvsig.fmap.dal.feature.spi.FeatureStoreProviderServices; |
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import org.gvsig.fmap.dal.resource.exception.AccessResourceException; |
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import org.gvsig.fmap.dal.resource.exception.ResourceBeginException; |
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import org.gvsig.fmap.dal.resource.exception.ResourceNotifyChangesException; |
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import org.gvsig.fmap.dal.resource.exception.ResourceNotifyCloseException; |
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import org.gvsig.fmap.dal.resource.exception.ResourceNotifyOpenException; |
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import org.gvsig.fmap.dal.resource.file.FileResource; |
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import org.gvsig.fmap.dal.resource.spi.ResourceConsumer; |
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import org.gvsig.fmap.dal.resource.spi.ResourceProvider; |
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import org.gvsig.fmap.dal.serverexplorer.filesystem.FilesystemServerExplorer; |
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import org.gvsig.fmap.dal.serverexplorer.filesystem.FilesystemServerExplorerParameters; |
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import org.gvsig.fmap.dal.store.dbf.utils.DbaseFile; |
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import org.gvsig.metadata.Metadata; |
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import org.gvsig.tools.exception.NotYetImplemented; |
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import org.gvsig.tools.persistence.PersistenceException; |
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import org.gvsig.tools.persistence.PersistentState; |
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public class DBFStoreProvider extends AbstractFeatureStoreProvider implements |
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ResourceConsumer {
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public static String NAME = "DBFStore"; |
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public static String DESCRIPTION = "DBF file"; |
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// private DBFResource dbf = null;
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private DbaseFile dbfFile = null; |
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private ResourceProvider dbfResource;
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protected Metadata metadata;
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private static final Locale ukLocale = new Locale("en", "UK"); |
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private DBFStoreParameters dbfParams;
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private long counterNewsOIDs = -1; |
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public DBFStoreProvider() throws InitializeException { |
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super();
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} |
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public DBFStoreProvider(DBFStoreParameters params)
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throws InitializeException {
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super();
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this.init(params);
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} |
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protected void init(DBFStoreParameters params) throws InitializeException { |
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this.dbfParams = params;
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File theFile = getDBFParameters().getDBFFile();
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dbfResource = this.createResource(FileResource.NAME,
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new Object[] { theFile.getAbsolutePath() }); |
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dbfResource.addConsumer(this);
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//DBFResource tmpResource = new DBFResource(dbfParameters);
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//
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//try {
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// this.dbf = (DBFResource) this.store.addResource(tmpResource);
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//} catch (DataException e1) {
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// throw new InitializeException(this.getName(), e1);
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//}
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this.dbfFile = new DbaseFile(theFile); |
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} |
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public FeatureStoreProvider initialize(FeatureStoreProviderServices store)
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throws InitializeException {
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super.initialize(store);
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this.initFeatureType();
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return this; |
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} |
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public String getName() { |
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return NAME;
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} |
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protected DBFStoreParameters getDBFParameters() {
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return dbfParams;
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} |
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public DataServerExplorer getExplorer() throws ReadException { |
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DataManager manager = DALLocator.getDataManager(); |
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FilesystemServerExplorerParameters params; |
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try {
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params = (FilesystemServerExplorerParameters) manager |
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.createServerExplorerParameters(FilesystemServerExplorer.NAME); |
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params.setRoot(this.getDBFParameters().getDBFFile().getParent());
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return manager.createServerExplorer(params);
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} catch (DataException e) {
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throw new ReadException(this.getName(), e); |
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} |
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} |
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public FeatureData getFeatureDataByReference(
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FeatureReferenceProviderServices reference, FeatureType featureType) |
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throws DataException {
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return this.getFeatureDataByIndex(((Integer) reference.getOID()) |
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.intValue(), |
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featureType); |
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} |
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public FeatureData getFeatureDataByReference(
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FeatureReferenceProviderServices reference) throws DataException {
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return this.getFeatureDataByReference(reference, this.store |
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.getDefaultFeatureType()); |
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} |
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public void performEditing(Iterator deleteds, Iterator inserteds, |
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Iterator updateds)
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throws PerformEditingException {
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try {
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this.close();
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} catch (CloseException e1) {
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throw new PerformEditingException(this.getName(), e1); |
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} |
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try {
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this.dbfResource.begin();
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DBFFeatureWriter writer = new DBFFeatureWriter(this.getName()); |
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FeatureSet set = this.store.getFeatureSet();
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writer.begin(this.getDBFParameters(), this.store |
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.getDefaultFeatureType(), set.getSize()); |
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Iterator iter = set.iterator();
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while (iter.hasNext()) {
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writer.write((Feature) iter.next()); |
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} |
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writer.end(); |
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this.dbfResource.notifyChanges();
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} catch (Exception e) { |
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throw new PerformEditingException(this.getName(), e); |
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} finally {
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this.dbfResource.end();
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this.dbfResource.removeConsumer(this); |
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} |
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this.counterNewsOIDs = -1; |
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} |
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/*
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* ==================================================
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*/
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public FeatureData createFeatureData(FeatureType type) throws DataException { |
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return new DBFFeatureData(this, (DefaultFeatureType) type); |
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} |
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/*
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* ===================================================
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*/
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FeatureStoreProviderServices getProviderServices() {
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return this.store; |
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} |
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protected void initFeatureType() throws InitializeException { |
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FeatureType defaultType = this.getTheFeatureType().getNotEditableCopy();
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List types = new ArrayList(1); |
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types.add(defaultType); |
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this.store.setFeatureTypes(types, defaultType);
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} |
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protected EditableFeatureType getTheFeatureType() throws InitializeException { |
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try {
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this.open();
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this.dbfResource.begin();
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} catch (DataException e) {
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throw new InitializeException(this.getName(), e); |
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} |
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try {
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int fieldCount = -1; |
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fieldCount = dbfFile.getFieldCount(); |
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EditableFeatureType fType = this.store.createFeatureType();
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for (int i = 0; i < fieldCount; i++) { |
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char fieldType = dbfFile.getFieldType(i);
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int attrType;
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int precision = 0; |
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if (fieldType == 'L') { |
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attrType = DataTypes.BOOLEAN; |
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} else if ((fieldType == 'F') || (fieldType == 'N')) { |
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precision = dbfFile.getFieldDecimalLength(i); |
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if (precision > 0) { |
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attrType = DataTypes.DOUBLE; |
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} else {
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attrType = DataTypes.INT; |
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} |
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} else if (fieldType == 'C') { |
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attrType = DataTypes.STRING; |
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} else if (fieldType == 'D') { |
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attrType = DataTypes.DATE; |
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} else {
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throw new InitializeException(this.getName(), |
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new UnknowDataTypeException(
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dbfFile.getFieldName(i), "" + fieldType,
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this.getName()));
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} |
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fType.add(dbfFile.getFieldName(i), attrType, |
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dbfFile.getFieldLength(i)).setPrecision(precision); |
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} |
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return fType;
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} finally {
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this.dbfResource.end();
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} |
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} |
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protected void loadValue(FeatureData featureData, int rowIndex, |
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FeatureAttributeDescriptor descriptor) throws ReadException {
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if (descriptor.getEvaluator() != null) { |
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// Nothing to do
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return;
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} |
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int fieldIndex = descriptor.getIndex();
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String value = null; |
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try {
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value = this.dbfFile.getStringFieldValue(rowIndex, fieldIndex);
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} catch (DataException e) {
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throw new ReadException(this.store.getName(), e); |
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} |
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value = value.trim(); |
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int fieldType = descriptor.getDataType();
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switch (fieldType) {
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case DataTypes.STRING:
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featureData.set(fieldIndex, value); |
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break;
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case DataTypes.DOUBLE:
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try {
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featureData.set(fieldIndex, new Double(value)); |
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} catch (NumberFormatException e) { |
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featureData.set(fieldIndex, null);
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} |
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break;
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case DataTypes.INT:
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try {
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featureData.set(fieldIndex, new Integer(value)); |
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} catch (NumberFormatException e) { |
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featureData.set(fieldIndex, null);
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} |
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break;
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case DataTypes.FLOAT:
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try {
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featureData.set(fieldIndex, new Float(value)); |
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} catch (NumberFormatException e) { |
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featureData.set(fieldIndex, null);
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} |
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break;
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case DataTypes.LONG:
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try {
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featureData.set(fieldIndex, new Long(value)); |
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} catch (NumberFormatException e) { |
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featureData.set(fieldIndex, null);
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} |
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break;
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case DataTypes.BOOLEAN:
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featureData.set(fieldIndex, new Boolean(value)); |
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break;
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case DataTypes.BYTE:
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try {
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featureData.set(fieldIndex, new Byte(value)); |
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} catch (NumberFormatException e) { |
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featureData.set(fieldIndex, null);
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} |
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break;
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case DataTypes.DATE:
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String year = value.substring(0, 4); |
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String month = value.substring(4, 6); |
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String day = value.substring(6, 8); |
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DateFormat df;
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if (descriptor.getDateFormat() == null){ |
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df = DateFormat.getDateInstance(DateFormat.SHORT, |
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ukLocale); |
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} else{
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df = descriptor.getDateFormat(); |
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} |
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/*
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* Calendar c = Calendar.getInstance(); c.clear();
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* c.set(Integer.parseInt(year), Integer.parseInt(month),
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* Integer.parseInt(day)); c.set(Calendar.MILLISECOND, 0);
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*/
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String strAux = month + "/" + day + "/" + year; |
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Date dat = null; |
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try {
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dat = df.parse(strAux); |
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} catch (ParseException e) { |
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throw new ReadException(this.store.getName(), e); |
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} |
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featureData.set(fieldIndex, dat); |
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break;
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default:
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featureData.set(fieldIndex, descriptor.getDefaultValue()); |
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break;
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} |
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} |
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/***
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* NOT supported in Alter Mode
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*
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* @param index
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* @return
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* @throws ReadException
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*/
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protected FeatureData getFeatureDataByIndex(long index) throws DataException { |
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return this |
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.getFeatureDataByIndex(index, this.store
|
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.getDefaultFeatureType()); |
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} |
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protected int getFeatureCount() throws ReadException, OpenException, |
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ResourceNotifyChangesException {
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this.open();
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try {
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this.dbfResource.begin();
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} catch (ResourceBeginException e) {
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throw new ReadException(this.getName(), e); |
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} |
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try {
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return this.dbfFile.getRecordCount(); |
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} finally {
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this.dbfResource.end();
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} |
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} |
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public FeatureSetProvider createSet(FeatureQuery query)
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throws DataException {
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return new DBFSetProvider(this, query); |
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} |
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public boolean canCreate() { |
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return true; |
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} |
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public boolean canWriteGeometry(int geometryType) throws DataException { |
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return false; |
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} |
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public void open() throws OpenException { |
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if (this.dbfFile.isOpen()) { |
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return;
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} |
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try {
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this.dbfResource.begin();
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} catch (ResourceBeginException e) {
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throw new OpenException(this.getName(), e); |
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} |
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try {
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this.dbfFile.open();
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this.dbfResource.notifyOpen();
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} catch (UnsupportedVersionException e) {
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throw new OpenException(this.getName(), e); |
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} catch (ResourceNotifyOpenException e) {
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throw new OpenException(this.getName(), e); |
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} catch (FileNotFoundException e) { |
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throw new OpenException(this.getName(), e); |
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} catch (IOException e) { |
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throw new OpenException(this.getName(), e); |
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} finally {
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this.dbfResource.end();
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} |
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} |
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public void close() throws CloseException { |
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super.close();
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if (!this.dbfFile.isOpen()) { |
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return;
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} |
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//Cerrar recurso
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try {
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this.dbfResource.begin();
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} catch (ResourceBeginException e) {
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throw new CloseException(this.getName(), e); |
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} |
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try {
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this.dbfFile.close();
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this.dbfResource.notifyClose();
|
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|
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} catch (ResourceNotifyCloseException e) {
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throw new CloseException(this.getName(), e); |
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} finally {
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this.dbfResource.end();
|
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} |
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} |
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public void dispose() throws CloseException { |
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this.close();
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dbfFile = null;
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this.dbfResource.removeConsumer(this); |
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dbfResource = null;
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metadata = null;
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super.dispose();
|
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} |
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public boolean closeResourceRequested(ResourceProvider resource) { |
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try {
|
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this.close();
|
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} catch (CloseException e) {
|
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return false; |
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} |
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return true; |
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} |
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public boolean allowWrite() { |
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File file;
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try {
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file = new File((String) this.dbfResource.get()); |
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} catch (AccessResourceException e) {
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return false; |
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} |
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return super.allowWrite() && file.canWrite(); |
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} |
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public void refresh() throws OpenException { |
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try {
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this.close();
|
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} catch (CloseException e) {
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throw new OpenException(this.getName(), e); |
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} |
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this.open();
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try {
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this.getTheFeatureType();
|
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} catch (InitializeException e) {
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throw new OpenException(this.getName(), e); |
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} |
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} |
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/**
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*
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* @param index
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* @param featureType
|
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* @return
|
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* @throws ReadException
|
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*/
|
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protected FeatureData getFeatureDataByIndex(long index, |
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FeatureType featureType) throws DataException {
|
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FeatureData featureData = this.createFeatureData(featureType);
|
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featureData.setOID(new Long(index)); |
| 492 |
return featureData;
|
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} |
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|
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protected void initFeatureDataByIndex(FeatureData featureData, |
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long index, FeatureType featureType) throws DataException { |
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featureData.setOID(new Long(index)); |
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} |
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|
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/**
|
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*
|
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* @param featureData
|
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* @throws DataException
|
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*/
|
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protected void loadFeatureDataByIndex(FeatureData featureData) |
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throws DataException {
|
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this.open();
|
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this.dbfResource.begin();
|
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long index = ((Long) featureData.getOID()).longValue(); |
| 510 |
try {
|
| 511 |
if (index >= this.dbfFile.getRecordCount()) { |
| 512 |
// FIXME
|
| 513 |
throw new ArrayIndexOutOfBoundsException("" + index); |
| 514 |
} |
| 515 |
Iterator iterator = featureData.getType().iterator();
|
| 516 |
while (iterator.hasNext()) {
|
| 517 |
FeatureAttributeDescriptor descriptor = (FeatureAttributeDescriptor) iterator |
| 518 |
.next(); |
| 519 |
this.loadValue(featureData, (int) index, descriptor); |
| 520 |
} |
| 521 |
|
| 522 |
|
| 523 |
} finally {
|
| 524 |
this.dbfResource.end();
|
| 525 |
} |
| 526 |
} |
| 527 |
|
| 528 |
public int getFeatureReferenceOIDType() { |
| 529 |
return DataTypes.LONG;
|
| 530 |
} |
| 531 |
|
| 532 |
public Object createNewOID() { |
| 533 |
if (this.counterNewsOIDs < 0) { |
| 534 |
try {
|
| 535 |
this.counterNewsOIDs = this.getFeatureCount(); |
| 536 |
} catch (DataException e) {
|
| 537 |
e.printStackTrace(); |
| 538 |
} |
| 539 |
|
| 540 |
} |
| 541 |
this.counterNewsOIDs++;
|
| 542 |
return null; |
| 543 |
} |
| 544 |
|
| 545 |
public boolean supportsAppendMode() { |
| 546 |
return false; |
| 547 |
} |
| 548 |
|
| 549 |
|
| 550 |
public void append(Feature feature) { |
| 551 |
// TODO Auto-generated method stub
|
| 552 |
throw new NotYetImplemented(); |
| 553 |
|
| 554 |
} |
| 555 |
|
| 556 |
public void beginAppend() { |
| 557 |
// TODO Auto-generated method stub
|
| 558 |
throw new NotYetImplemented(); |
| 559 |
} |
| 560 |
|
| 561 |
public void endAppend() { |
| 562 |
// TODO Auto-generated method stub
|
| 563 |
throw new NotYetImplemented(); |
| 564 |
|
| 565 |
} |
| 566 |
|
| 567 |
public PersistentState getState() throws PersistenceException { |
| 568 |
// Nothing to do
|
| 569 |
return null; |
| 570 |
} |
| 571 |
|
| 572 |
public void loadState(PersistentState state) throws PersistenceException { |
| 573 |
try {
|
| 574 |
this.init((DBFStoreParameters) this.store.getParameters()); |
| 575 |
} catch (InitializeException e) {
|
| 576 |
throw new PersistenceException(e); |
| 577 |
} |
| 578 |
} |
| 579 |
|
| 580 |
public void setState(PersistentState state) throws PersistenceException { |
| 581 |
try {
|
| 582 |
this.init((DBFStoreParameters) this.store.getParameters()); |
| 583 |
} catch (InitializeException e) {
|
| 584 |
throw new PersistenceException(e); |
| 585 |
} |
| 586 |
} |
| 587 |
|
| 588 |
|
| 589 |
} |