root / branches / v2_0_0_prep / libraries / libFMap_dalfile / src / org / gvsig / fmap / dal / store / dbf / DBFFilesystemServerProvider.java @ 25789
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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 org.gvsig.fmap.dal.DALLocator; |
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import org.gvsig.fmap.dal.DataManager; |
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import org.gvsig.fmap.dal.DataStoreParameters; |
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import org.gvsig.fmap.dal.NewDataStoreParameters; |
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import org.gvsig.fmap.dal.exception.CreateException; |
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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.RemoveException; |
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import org.gvsig.fmap.dal.feature.NewFeatureStoreParameters; |
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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.spi.FilesystemServerExplorerProvider; |
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import org.gvsig.fmap.dal.serverexplorer.filesystem.spi.FilesystemServerExplorerProviderServices; |
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public class DBFFilesystemServerProvider implements FilesystemServerExplorerProvider, |
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ResourceConsumer {
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protected FilesystemServerExplorerProviderServices serverExplorer;
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public String getDataStoreProviderName() { |
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return DBFStoreProvider.NAME;
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} |
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public boolean accept(File pathname) { |
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return (pathname.getName().toLowerCase().endsWith(".dbf")); |
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} |
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public String getDescription() { |
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return DBFStoreProvider.DESCRIPTION;
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} |
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public DataStoreParameters getParameters(File file) throws DataException { |
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DataManager manager = DALLocator.getDataManager(); |
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DBFStoreParameters params = (DBFStoreParameters) manager |
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.createStoreParameters(this.getDataStoreProviderName());
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params.setDBFFileName(file.getPath()); |
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return params;
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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 canCreate(NewDataStoreParameters parameters) { |
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DBFNewStoreParameters params = (DBFNewStoreParameters) parameters; |
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if (params.getDBFFile().getParentFile().canWrite()) {
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return false; |
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} |
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if (params.getDBFFile().exists()) {
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if (!params.getDBFFile().canWrite()) {
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return false; |
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} |
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} |
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if (params.getDefaultFeatureType() == null) { |
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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 void create(NewDataStoreParameters parameters, boolean overwrite) |
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throws CreateException {
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DBFNewStoreParameters params = (DBFNewStoreParameters) parameters; |
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File file = params.getDBFFile();
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if (file.exists()) {
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if (overwrite) {
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if (!file.delete()) {
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throw new CreateException(this.getDataStoreProviderName(), |
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new IOException( |
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"cannot delete file"));
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} |
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} else {
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throw new CreateException(this.getDataStoreProviderName(), |
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new IOException( |
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"file already exist"));
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} |
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} |
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FileResource resource; |
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try {
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resource = (FileResource) this.serverExplorer
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.getServerExplorerProviderServices().createResource( |
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FileResource.NAME, |
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new Object[] { file.getAbsolutePath() }); |
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} catch (InitializeException e1) {
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throw new CreateException(params.getDBFFileName(), e1); |
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} |
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resource.addConsumer(this);
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try {
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resource.begin(); |
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DBFFeatureWriter writer = new DBFFeatureWriter(this |
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.getDataStoreProviderName()); |
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writer.begin(params, params.getDefaultFeatureType(), 0);
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writer.end(); |
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writer.dispose(); |
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resource.notifyChanges(); |
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} catch (Exception e) { |
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throw new CreateException(this.getDataStoreProviderName(), e); |
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} finally {
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resource.end(); |
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resource.removeConsumer(this);
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} |
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} |
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protected NewDataStoreParameters createInstanceNewDataStoreParameters() {
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return new DBFNewStoreParameters(); |
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} |
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public NewDataStoreParameters getCreateParameters() {
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NewFeatureStoreParameters params = (NewFeatureStoreParameters) this
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.createInstanceNewDataStoreParameters(); |
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params.setDefaultFeatureType(this.serverExplorer
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.getServerExplorerProviderServices().createNewFeatureType()); |
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return params;
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} |
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public void initialize(FilesystemServerExplorerProviderServices serverExplorer) { |
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this.serverExplorer = serverExplorer;
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} |
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public void remove(DataStoreParameters parameters) throws RemoveException { |
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DBFStoreParameters params = (DBFStoreParameters) parameters; |
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File file = params.getFile();
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if (!file.exists()) {
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throw new RemoveException(this.getDataStoreProviderName(), |
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new FileNotFoundException(params.getFile())); |
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} |
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if (!file.delete()) {
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throw new RemoveException(this.getDataStoreProviderName(), |
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new IOException()); // FIXME Exception |
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} |
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} |
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public boolean closeResourceRequested(ResourceProvider resource) { |
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// while it is using a resource anyone can't close it
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return !(this.equals(resource)); |
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} |
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/*
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* (non-Javadoc)
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*
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* @see
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* org.gvsig.fmap.dal.resource.spi.ResourceConsumer#resourceChanged(org.
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* gvsig.fmap.dal.resource.spi.ResourceProvider)
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*/
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public void resourceChanged(ResourceProvider resource) { |
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// Do nothing
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} |
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} |