Mercurial > dive4elements > river
view flys-client/src/main/java/de/intevation/flys/client/server/CSVExportServiceImpl.java @ 5818:a4ff4167be1e
Request feature info on all layers and show it as html if
the server does not return valid gml.
Non queryable layers produce an error message when the request
fails. This is good enough
author | Andre Heinecke <aheinecke@intevation.de> |
---|---|
date | Wed, 24 Apr 2013 17:33:27 +0200 |
parents | 1f2f08211a5f |
children |
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package de.intevation.flys.client.server; import java.util.ArrayList; import java.util.List; import java.io.Reader; import java.io.InputStream; import java.io.InputStreamReader; import java.io.IOException; import org.w3c.dom.Document; import org.w3c.dom.Element; import org.apache.log4j.Logger; import com.google.gwt.user.server.rpc.RemoteServiceServlet; import au.com.bytecode.opencsv.CSVReader; import de.intevation.artifacts.common.ArtifactNamespaceContext; import de.intevation.artifacts.common.utils.XMLUtils; import de.intevation.artifacts.httpclient.http.HttpClient; import de.intevation.artifacts.httpclient.http.HttpClientImpl; import de.intevation.flys.client.shared.exceptions.ServerException; import de.intevation.flys.client.client.services.CSVExportService; /** * @author <a href="mailto:raimund.renkert@intevation.de">Raimund Renkert</a> */ public class CSVExportServiceImpl extends RemoteServiceServlet implements CSVExportService { private static final Logger logger = Logger.getLogger(CSVExportServiceImpl.class); public static final String ERROR_NO_EXPORT_FOUND = "error_no_export_found"; public List<String[]> getCSV( String locale, String uuid, String name) throws ServerException { logger.info("CSVExportServiceImpl.getCSV"); String url = getServletContext().getInitParameter("server-url"); Document requestDoc = XMLUtils.newDocument(); XMLUtils.ElementCreator ec = new XMLUtils.ElementCreator( requestDoc, ArtifactNamespaceContext.NAMESPACE_URI, ArtifactNamespaceContext.NAMESPACE_PREFIX); Element action = ec.create("action"); ec.addAttr(action, "type", "csv", true); ec.addAttr(action, "name", name, true); requestDoc.appendChild(action); HttpClient client = new HttpClientImpl(url, locale); try { InputStream in = client.collectionOut(requestDoc, uuid, "export"); Reader reader = new InputStreamReader (in, "UTF-8"); CSVReader csvReader = new CSVReader (reader); List<String[]> lines = new ArrayList<String[]>(); String[] line = null; while ((line = csvReader.readNext()) != null) { if (line != null) { if (!line[0].startsWith("#") && line.length > 0) { if (line[0].replace("'", "").length() > 0) { lines.add(line); } } } } return lines; } catch (IOException ce) { logger.error(ce.getLocalizedMessage()); } throw new ServerException(ERROR_NO_EXPORT_FOUND); } } // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :