Mercurial > dive4elements > river
diff flys-backend/src/main/java/de/intevation/flys/importer/parsers/WaterlevelParser.java @ 2845:a65b5b0ade6f
Completed the MINFO waterlevel import.
flys-backend/trunk@4288 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author | Ingo Weinzierl <ingo.weinzierl@intevation.de> |
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date | Tue, 24 Apr 2012 12:46:26 +0000 |
parents | c4db0f75a94a |
children | f63b39799d2d |
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--- a/flys-backend/src/main/java/de/intevation/flys/importer/parsers/WaterlevelParser.java Tue Apr 24 11:16:06 2012 +0000 +++ b/flys-backend/src/main/java/de/intevation/flys/importer/parsers/WaterlevelParser.java Tue Apr 24 12:46:26 2012 +0000 @@ -1,15 +1,47 @@ package de.intevation.flys.importer.parsers; +import java.io.File; +import java.io.IOException; +import java.text.NumberFormat; +import java.text.ParseException; +import java.util.ArrayList; import java.util.List; +import java.util.regex.Matcher; +import java.util.regex.Pattern; +import org.apache.log4j.Logger; + +import de.intevation.flys.importer.ImportUnit; import de.intevation.flys.importer.ImportWaterlevel; +import de.intevation.flys.importer.ImportWaterlevelQRange; +import de.intevation.flys.importer.ImportWaterlevelValue; public class WaterlevelParser extends LineParser { + private static final Logger log = Logger.getLogger(WaterlevelParser.class); + + private static final NumberFormat nf = + NumberFormat.getInstance(DEFAULT_LOCALE); + + private static final Pattern META_Q_RANGE = + Pattern.compile("Abfluss\\s\\[(.*)\\];(.*)"); + + public static final Pattern META_UNIT = + Pattern.compile("^Einheit: \\[(.*)\\].*"); + + private List<ImportWaterlevel> waterlevels; + private ImportWaterlevel current; + + private ImportWaterlevelQRange currentQ; + + private String currentDescription; + + public WaterlevelParser() { + waterlevels = new ArrayList<ImportWaterlevel>(); } @@ -19,19 +51,110 @@ @Override + public void parse(File file) throws IOException { + currentDescription = file.getName(); + + super.parse(file); + } + + + @Override protected void reset() { - + currentQ = null; + current = new ImportWaterlevel(currentDescription); } @Override protected void finish() { + if (current != null) { + if (currentQ != null) { + current.addValue(currentQ); + } + waterlevels.add(current); + } } @Override protected void handleLine(String line) { + if (line.startsWith(START_META_CHAR)) { + handleMetaLine(stripMetaLine(line)); + return; + } + else if (handleQRange(line)) { + return; + } + else { + handleDataLine(line); + return; + } + } + + private void handleMetaLine(String meta) { + Matcher m = META_UNIT.matcher(meta); + + if (m.matches()) { + String unit = m.group(1); + log.debug("Found unit: '" + unit + "'"); + + current.setUnit(new ImportUnit(unit)); + } + } + + + private boolean handleQRange(String line) { + Matcher m = META_Q_RANGE.matcher(line); + + if (m.matches()) { + String unitStr = m.group(1); + String valueStr = m.group(2); + + if (currentQ != null) { + if (current != null) { + current.addValue(currentQ); + } + else { + // this should never happen + log.warn("Try to add Q range without waterlevel!"); + } + } + + try { + log.debug("Found new Q range: Q=" + valueStr); + + currentQ = new ImportWaterlevelQRange( + nf.parse(valueStr).doubleValue()); + + return true; + } + catch (ParseException pe) { + log.warn("Error while parsing Q range: '" + line + "'"); + } + } + + return false; + } + + + private void handleDataLine(String line) { + String[] cols = line.split(SEPERATOR_CHAR); + + if (cols == null || cols.length < 2) { + log.warn("skip invalid waterlevel line: '" + line + "'"); + return; + } + + try { + Double station = nf.parse(cols[0]).doubleValue(); + Double value = nf.parse(cols[1]).doubleValue(); + + currentQ.addValue(new ImportWaterlevelValue(station, value)); + } + catch (ParseException pe) { + log.warn("Error while parsing number values: '" + line + "'"); + } } } // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :