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.csv / src / main / java / org / gvsig / fmap / dal / store / csv / CSVFilesystemServerProvider.java @ 45563
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/**
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* gvSIG. Desktop Geographic Information System.
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*
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* Copyright (C) 2007-2013 gvSIG Association.
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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 3
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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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* For any additional information, do not hesitate to contact us
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* at info AT gvsig.com, or visit our website www.gvsig.com.
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*/
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package org.gvsig.fmap.dal.store.csv; |
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import java.io.File; |
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import java.io.IOException; |
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import org.apache.commons.lang3.StringUtils; |
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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.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.EditableFeatureAttributeDescriptor; |
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import org.gvsig.fmap.dal.feature.EditableFeatureType; |
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import org.gvsig.fmap.dal.feature.FeatureType; |
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import org.gvsig.fmap.dal.feature.NewFeatureStoreParameters; |
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import org.gvsig.fmap.dal.resource.ResourceAction; |
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import org.gvsig.fmap.dal.resource.exception.ResourceExecuteException; |
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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.AbsolutePathRequiredException; |
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import org.gvsig.fmap.dal.serverexplorer.filesystem.impl.AbstractFilesystemServerExplorerProvider; |
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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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import org.gvsig.tools.dataTypes.DataTypes; |
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import org.supercsv.comment.CommentStartsWith; |
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import org.supercsv.prefs.CsvPreference; |
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import org.supercsv.quote.QuoteMode; |
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public class CSVFilesystemServerProvider extends AbstractFilesystemServerExplorerProvider |
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implements FilesystemServerExplorerProvider, ResourceConsumer {
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protected FilesystemServerExplorerProviderServices serverExplorer;
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@Override
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public String getDataStoreProviderName() { |
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return CSVStoreProvider.NAME;
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} |
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@Override
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public int getMode() { |
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return DataServerExplorer.MODE_FEATURE | DataServerExplorer.MODE_GEOMETRY;
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} |
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@Override
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public boolean accept(File file) { |
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String pathname = file.getName().toLowerCase();
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if ( pathname.endsWith(".csv") || pathname.endsWith(".json")){ |
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return true; |
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} |
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return false; |
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} |
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@Override
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public String getDescription() { |
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return CSVStoreProvider.DESCRIPTION;
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} |
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@Override
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public DataStoreParameters getParameters(File file) throws DataException { |
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DataManager manager = DALLocator.getDataManager(); |
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CSVStoreParameters params = (CSVStoreParameters) manager |
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.createStoreParameters(this.getDataStoreProviderName());
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params.setFile(file); |
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return params;
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} |
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@Override
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public boolean canCreate() { |
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return true; |
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} |
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@Override
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public boolean canCreate(NewDataStoreParameters parameters) { |
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CSVNewStoreParameters params = (CSVNewStoreParameters) parameters; |
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if (params.getFile().getParentFile().canWrite()) {
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return false; |
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} |
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if (params.getFile().exists()) {
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if (!params.getFile().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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final CSVNewStoreParameters params = (CSVNewStoreParameters) parameters;
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final File file = params.getFile(); |
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if (!file.isAbsolute()) {
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throw new AbsolutePathRequiredException(file.getPath()); |
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} |
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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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final 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.getFile().getAbsolutePath(), e1); |
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} |
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resource.addConsumer(this);
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try {
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resource.execute(new ResourceAction() {
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@Override
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public Object run() throws Exception { |
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String s;
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char quoteChar;
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int delimiterChar;
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String endOfLineSymbols;
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CSVFeatureWriter writer = new CSVFeatureWriter();
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CSVNewStoreParameters newparams = (CSVNewStoreParameters) params; |
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CsvPreference defaultPreference = CSVStoreParameters.getPredefinedCSVPreferences(newparams); |
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s = CSVStoreParameters.getQuoteCharacter(params); |
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if (StringUtils.isBlank(s)) {
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quoteChar = (char) defaultPreference.getQuoteChar();
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} else {
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quoteChar = s.charAt(0);
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} |
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s = CSVStoreParameters.getDelimiter(newparams); |
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if (StringUtils.isBlank(s)) {
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delimiterChar = defaultPreference.getDelimiterChar(); |
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} else {
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delimiterChar = s.charAt(0);
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} |
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endOfLineSymbols = CSVStoreParameters.getRecordSeparator(params); |
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if (StringUtils.isBlank(endOfLineSymbols)) {
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endOfLineSymbols = defaultPreference.getEndOfLineSymbols(); |
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} |
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CsvPreference.Builder builder = new CsvPreference.Builder(quoteChar, delimiterChar, endOfLineSymbols);
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s = CSVStoreParameters.getCommentStartMarker(newparams); |
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if (!StringUtils.isBlank(s)) {
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CommentStartsWith cs = new CommentStartsWith(s);
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builder.skipComments(cs); |
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} |
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//builder.surroundingSpacesNeedQuotes(CSVStoreParameters
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// .getSurroundingSpacesNeedQuotes(newparams));
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builder.surroundingSpacesNeedQuotes(true);
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QuoteMode quoteMode = CSVStoreParameters.getQuoteMode(newparams); |
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if (quoteMode != null) { |
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builder.useQuoteMode(quoteMode); |
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} |
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CsvPreference csvpreferences = builder.build(); |
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writer.initialize(params, file.getAbsoluteFile(), params.getDefaultFeatureType(), csvpreferences); |
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writer.begin(); |
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// writer.begin(
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// params,
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// fixFeatureType(params.getDefaultFeatureType()),
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// 0
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// );
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writer.end(); |
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//writer.dispose();
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resource.notifyChanges(); |
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return null; |
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} |
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}); |
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} catch (ResourceExecuteException e) {
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throw new CreateException(this.getDataStoreProviderName(), e); |
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} finally {
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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 CSVNewStoreParameters(); |
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} |
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@Override
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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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@Override
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public void initialize(FilesystemServerExplorerProviderServices serverExplorer) { |
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this.serverExplorer = serverExplorer;
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} |
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@Override
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public void remove(DataStoreParameters parameters) throws RemoveException { |
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CSVStoreParameters params = (CSVStoreParameters) 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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@Override
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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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@Override
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public void resourceChanged(ResourceProvider resource) { |
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// Do nothing
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} |
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protected EditableFeatureType fixFeatureType(FeatureType featureType) {
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EditableFeatureType newFeatureType; |
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if (featureType instanceof EditableFeatureType) { |
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newFeatureType = (EditableFeatureType) featureType.getCopy(); |
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} else {
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newFeatureType = featureType.getEditable(); |
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} |
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for (int i = 0; i < newFeatureType.size(); i++) { |
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EditableFeatureAttributeDescriptor attr = (EditableFeatureAttributeDescriptor) newFeatureType.getAttributeDescriptor(i); |
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String s;
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switch (attr.getType()) {
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case DataTypes.INT:
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s = String.valueOf(Integer.MAX_VALUE); |
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attr.setSize(18);
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attr.setPrecision(0);
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attr.setScale(0);
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break;
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case DataTypes.LONG:
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s = String.valueOf(Long.MAX_VALUE); |
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attr.setSize(18);
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attr.setPrecision(0);
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attr.setScale(0);
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break;
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case DataTypes.FLOAT:
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attr.setSize(18);
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attr.setPrecision(6);
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attr.setScale(0);
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break;
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case DataTypes.DOUBLE:
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attr.setSize(18);
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attr.setPrecision(6);
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attr.setScale(0);
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break;
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} |
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} |
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return newFeatureType;
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} |
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} |