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 / CSVStoreProvider.java @ 47638
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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 modify it under
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* the terms of the GNU General Public License as published by the Free Software
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* Foundation; either version 3 of the License, or (at your option) any later
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* version.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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* FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
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* details.
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*
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* You should have received a copy of the GNU General Public License along with
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* this program; if not, write to the Free Software Foundation, Inc., 51
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* Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* For any additional information, do not hesitate to contact us at info AT
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* 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 java.io.Reader; |
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import java.util.ArrayList; |
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import java.util.Iterator; |
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import java.util.List; |
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import org.apache.commons.io.FileUtils; |
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import org.apache.commons.io.FilenameUtils; |
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import org.gvsig.fmap.dal.DataStore; |
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import org.gvsig.fmap.dal.FileHelper; |
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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.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.spi.FeatureProvider; |
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import org.gvsig.fmap.dal.resource.ResourceAction; |
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import org.gvsig.fmap.dal.resource.spi.ResourceConsumer; |
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import org.gvsig.fmap.dal.spi.DataStoreProviderServices; |
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import org.gvsig.fmap.dal.store.csv.simplereaders.CSVReaderSuperCSV; |
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import org.gvsig.fmap.dal.store.csv.simplereaders.FixedLenReader; |
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import org.gvsig.fmap.dal.store.simplereader.simplereaders.SimpleReader; |
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import org.gvsig.fmap.dal.store.simplereader.SimpleReaderFeatureTypeLoader; |
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import org.gvsig.fmap.dal.store.simplereader.SimpleReaderStoreParameters; |
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import org.gvsig.fmap.dal.store.simplereader.SimpleReaderStoreProvider; |
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import org.gvsig.tools.ToolsLocator; |
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import org.gvsig.tools.dispose.DisposableIterator; |
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import org.gvsig.tools.i18n.I18nManager; |
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import org.slf4j.Logger; |
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import org.slf4j.LoggerFactory; |
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import org.supercsv.prefs.CsvPreference; |
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@SuppressWarnings("UseSpecificCatch") |
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public class CSVStoreProvider extends SimpleReaderStoreProvider implements |
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ResourceConsumer { |
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private static final Logger LOGGER = LoggerFactory.getLogger(CSVStoreProvider.class); |
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public static final String NAME = DataStore.CSV_PROVIDER_NAME; |
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public static final String DESCRIPTION = "CSV file"; |
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public static final String METADATA_DEFINITION_NAME = NAME; |
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protected final CSVFeatureWriter writer; |
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@SuppressWarnings({"OverridableMethodCallInConstructor", "LeakingThisInConstructor"}) |
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public CSVStoreProvider(
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CSVStoreParameters parameters, |
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DataStoreProviderServices storeServices |
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) throws InitializeException {
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super(
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parameters, |
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storeServices, |
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FileHelper.newMetadataContainer(METADATA_DEFINITION_NAME) |
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); |
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this.writer = new CSVFeatureWriter(); |
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} |
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private CSVStoreParameters getCSVParameters() {
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return (CSVStoreParameters) this.getParameters(); |
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} |
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@Override
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public String getProviderName() { |
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return NAME;
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} |
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@Override
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public boolean allowWrite() { |
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return true; |
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} |
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@Override
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@SuppressWarnings("Convert2Lambda") |
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public void performChanges(Iterator deleteds, Iterator inserteds, Iterator updateds, Iterator originalFeatureTypesUpdated) throws PerformEditingException { |
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try {
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I18nManager i18n = ToolsLocator.getI18nManager(); |
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this.taskStatus.add();
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taskStatus.message(i18n.getTranslation("_Preparing_writing"));
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this.getResource().closeRequest();
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getResource().execute(new ResourceAction() {
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@Override
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public Object run() throws Exception { |
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FeatureSet features = null;
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DisposableIterator it = null;
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try {
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File file = (File) resource.get(); |
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features = getStoreServices().getFeatureStore().getFeatureSet(); |
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taskStatus.message(i18n.getTranslation("_Writing_records"));
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if (virtualrows == null) { |
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List<FeatureProvider> newdata = new ArrayList<>(); |
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FeatureType ftype = getStoreServices().getDefaultFeatureType(); |
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writer.initialize(getCSVParameters(), file, ftype, getCSVPreferences()); |
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writer.begin(); |
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it = features.fastIterator(); |
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taskStatus.setRangeOfValues(0, features.getSize());
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taskStatus.setCurValue(0);
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while (it.hasNext()) {
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taskStatus.incrementCurrentValue(); |
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FeatureProvider feature = getStoreServices().getFeatureProviderFromFeature( |
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(org.gvsig.fmap.dal.feature.Feature) it.next()); |
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writer.add(feature); |
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if (feature.getOID() == null) { |
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LOGGER.warn("feature without OID");
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feature.setOID(createNewOID()); |
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} |
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newdata.add(feature); |
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} |
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data = newdata; |
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if (writer.getEnvelope() != null) { |
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envelope = writer.getEnvelope(); |
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} else {
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envelope = null;
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} |
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resource.notifyChanges(); |
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writer.end(); |
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bboxFileSave(envelope); |
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} else {
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CSVStoreParameters csvParams = getCSVParameters(); |
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CSVStoreParameters tmpParams = (CSVStoreParameters) csvParams.getCopy(); |
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String tmpBase = File.createTempFile("tmp_" + System.currentTimeMillis(), null).getAbsolutePath(); |
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File tmpFile = new File(tmpBase + ".csv"); |
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tmpParams.setFile(tmpFile); |
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FeatureType ftype = getStoreServices().getDefaultFeatureType(); |
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writer.initialize(tmpParams, tmpFile, ftype, getCSVPreferences(),spatialIndex); |
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writer.begin(); |
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it = features.fastIterator(); |
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taskStatus.setIndeterminate(); |
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taskStatus.setCurValue(0);
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while (it.hasNext()) {
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taskStatus.incrementCurrentValue(); |
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if( taskStatus.isCancellationRequested() ) {
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taskStatus.cancel(); |
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LOGGER.info("CSV writing canceled ("+getFullFileName()+")"); |
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break;
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} |
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FeatureProvider feature = getStoreServices().getFeatureProviderFromFeature( |
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(org.gvsig.fmap.dal.feature.Feature) it.next()); |
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writer.add(feature); |
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if (feature.getOID() == null) { |
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LOGGER.warn("feature without OID");
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feature.setOID(createNewOID()); |
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} |
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} |
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if (writer.getEnvelope() != null) { |
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envelope = writer.getEnvelope(); |
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} else {
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envelope = null;
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} |
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resource.notifyChanges(); |
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writer.end(); |
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if( !taskStatus.isCancelled() ) {
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if (!csvParams.getFile().delete()) {
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LOGGER.debug("Can't delete csv file '" + csvParams.getFile() + "'."); |
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throw new IOException("Can't delete csv '" |
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+ FilenameUtils.getBaseName(csvParams.getFile().getAbsolutePath()) |
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+ "' file to replace with the new csv.\nThe new csv is in temporary file '" + tmpFile.getAbsolutePath()
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+ "'");
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} |
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File csvFile = csvParams.getFile();
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FileUtils.moveFile(tmpParams.getFile(), csvFile); |
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FileUtils.delete(new File(FilenameUtils.removeExtension(csvFile.getAbsolutePath())+".idx")); |
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bboxFileSave(envelope); |
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loadFeatures(); |
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} |
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} |
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} finally {
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if (it != null) { |
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it.dispose(); |
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} |
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if (features != null) { |
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features.dispose(); |
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} |
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} |
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return null; |
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} |
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}); |
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this.taskStatus.terminate();
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} catch (Exception e) { |
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this.taskStatus.abort();
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throw new PerformEditingException(getResource().toString(), e); |
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} |
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} |
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private CsvPreference getCSVPreferences() {
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CSVReaderSuperCSV reader = new CSVReaderSuperCSV(getCSVParameters());
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return reader.getCSVPreferences();
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} |
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@Override
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public boolean supportsAppendMode() { |
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return true; |
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} |
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@Override
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@SuppressWarnings("Convert2Lambda") |
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public void append(final FeatureProvider featureProvider) { |
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//todo
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getResource().execute(new ResourceAction() {
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@Override
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public Object run() throws Exception { |
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//writer.append(getStoreServices().createFeature(featureProvider));
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writer.add(featureProvider); |
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return null; |
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} |
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}); |
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} |
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@Override
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@SuppressWarnings("Convert2Lambda") |
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public void beginAppend() throws DataException { |
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getResource().execute(new ResourceAction() {
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@Override
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public Object run() throws Exception { |
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writer.initialize( |
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getCSVParameters(), |
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getCSVParameters().getFile(), |
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getFeatureStore().getDefaultFeatureType(), |
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getCSVPreferences() |
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); |
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writer.beginAppend(); |
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return null; |
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} |
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}); |
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} |
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@Override
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@SuppressWarnings("Convert2Lambda") |
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public void endAppend() { |
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try {
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getResource().execute(new ResourceAction() {
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@Override
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public Object run() throws Exception { |
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writer.end(); |
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resource.notifyChanges(); //resourcesNotifyChanges();
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counterNewsOIDs = -1;
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return null; |
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} |
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}); |
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if (writer.getEnvelope() != null) { |
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envelope = writer.getEnvelope(); |
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} else {
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envelope = null;
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} |
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writer.end(); |
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this.close();
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bboxFileSave(envelope); |
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} catch (Exception ex) { |
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LOGGER.warn("Not been able to end append '" + this.getFullName() + "'.", ex); |
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} |
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} |
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@Override
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protected SimpleReader getSimpleReader(SimpleReaderStoreParameters parameters, Reader in) throws IOException { |
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SimpleReader reader; |
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if (CSVStoreParameters.getRawFieldsDefinition(parameters) != null) { |
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reader = new FixedLenReader(in, (CSVStoreParameters) parameters);
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} else {
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reader = new CSVReaderSuperCSV(in, (CSVStoreParameters) parameters);
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} |
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return reader;
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} |
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@Override
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protected SimpleReaderFeatureTypeLoader getFeatureTypeLoader() {
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return new CSVFeatureTypeLoader(getCSVParameters()); |
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} |
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@Override
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public List<String> getRowByIndex(long index) { |
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try {
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this.open();
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} catch(Exception ex) { |
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throw new RuntimeException("Can't get row by index", ex); |
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} |
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if (this.virtualrows == null) { |
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return null; |
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} |
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List<String> line = this.virtualrows.get64(index); |
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if( line!=null ) { |
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for (int i = 0; i < line.size(); i++) { |
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String s = line.get(i);
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line.set(i, CSVReaderSuperCSV.unescapeCRLF(s)); |
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} |
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} |
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return line;
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} |
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} |