Mercurial > dive4elements > river
view flys-artifacts/src/main/java/de/intevation/flys/exports/WDifferencesExporter.java @ 1726:e3b9164a85fe
Fetch name of static WKms.
flys-artifacts/trunk@3008 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author | Felix Wolfsteller <felix.wolfsteller@intevation.de> |
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date | Tue, 18 Oct 2011 14:03:43 +0000 |
parents | 2c643a643026 |
children | 65dac9cf6ff5 |
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package de.intevation.flys.exports; import java.io.IOException; import java.io.OutputStream; import java.text.NumberFormat; import java.util.ArrayList; import java.util.List; import org.w3c.dom.Document; import org.apache.log4j.Logger; import au.com.bytecode.opencsv.CSVWriter; import de.intevation.artifacts.CallContext; import de.intevation.flys.artifacts.model.CalculationResult; import de.intevation.flys.artifacts.model.WKms; import de.intevation.flys.utils.Formatter; /** * (CSV)Exporter for WDifferences. */ public class WDifferencesExporter extends AbstractExporter { /** The logger used in this exporter. */ private static Logger logger = Logger.getLogger(WDifferencesExporter.class); public static final String WDIFF_CSV_KM_HEADER = "export.w_differences.csv.header.km"; public static final String WDIFF_CSV_W_HEADER = "export.w_differences.csv.header.w"; public static final String WDIFF_DEFAULT_CSV_KM_HEADER = "Fluss-Km"; public static final String WDIFF_DEFAULT_CSV_W_HEADER = "m"; /** The storage that contains all WKms objects for the different facets. */ protected List<WKms[]> data; public void init(Document request, OutputStream out, CallContext context) { logger.debug("WDifferencesExporter.init"); super.init(request, out, context); this.data = new ArrayList<WKms[]>(); } /** * Genereate data in csv format. */ @Override public void generate() throws IOException { logger.debug("WDifferencesExporter.generate"); if (facet == null) { throw new IOException("invalid (null) facet for exporter"); } else if (facet.equals(AbstractExporter.FACET_CSV)) { generateCSV(); } else { throw new IOException("invalid facet (" + facet + ") for exporter"); } } /** * Adds given data. * @param d either a WKms or a CalculationResult to add to data. */ @Override protected void addData(Object d) { if (d instanceof CalculationResult) { d = ((CalculationResult)d).getData(); if (d instanceof WKms []) { data.add((WKms [])d); } } else if (d instanceof WKms) { data.add(new WKms[] { (WKms) d }); } } /** * Lets writer write all data (including header). * @param writer Writer to write data with. */ @Override protected void writeCSVData(CSVWriter writer) { logger.info("WDifferencesExporter.writeData"); writeCSVHeader(writer); for (WKms[] tmp: data) { for (WKms wkms: tmp) { wKms2CSV(writer, wkms); } } } /** * Lets csvwriter write the header (first line in file). * @param write Writer to write header with. */ protected void writeCSVHeader(CSVWriter writer) { logger.info("WDifferencesExporter.writeCSVHeader"); writer.writeNext(new String[] { msg(WDIFF_CSV_KM_HEADER, WDIFF_DEFAULT_CSV_KM_HEADER), msg(WDIFF_CSV_W_HEADER, WDIFF_DEFAULT_CSV_W_HEADER) }); } protected void wKms2CSV(CSVWriter writer, WKms wkms) { logger.debug("WDifferencesExporter.wQKms2CSV"); NumberFormat kmf = getKmFormatter(); NumberFormat wf = getWFormatter(); int size = wkms.size(); for (int i = 0; i < size; i ++) { writer.writeNext(new String[] { kmf.format(wkms.getKm(i)), wf.format(wkms.getW(i)) }); } } /** * Returns the number formatter for kilometer values. * * @return the number formatter for kilometer values. */ protected NumberFormat getKmFormatter() { return Formatter.getWaterlevelKM(context); } /** * Returns the number formatter for W values. * * @return the number formatter for W values. */ protected NumberFormat getWFormatter() { return Formatter.getWaterlevelW(context); } } // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :