Mercurial > dive4elements > river
view flys-backend/src/main/java/de/intevation/flys/importer/parsers/MorphologicalWidthParser.java @ 4768:99f9e371371b
Move distance calculation to Coordinate class. Use inheritance instead of composition in Anchor class. Made Anchor class static. Use epsilon equal comparision when checking for same station: Boy, do you ever learn that sharp equal comparison of doubles is not a clever idea!?
author | Sascha L. Teichmann <teichmann@intevation.de> |
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date | Fri, 04 Jan 2013 15:35:51 +0100 |
parents | f63b39799d2d |
children | 255898799ed9 |
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package de.intevation.flys.importer.parsers; import java.math.BigDecimal; 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.ImportMorphWidth; import de.intevation.flys.importer.ImportMorphWidthValue; import de.intevation.flys.importer.ImportUnit; public class MorphologicalWidthParser extends LineParser { private static final Logger log = Logger.getLogger(MorphologicalWidthParser.class); public static final NumberFormat nf = NumberFormat.getInstance(DEFAULT_LOCALE); public static final Pattern META_UNIT = Pattern.compile("^Einheit: \\[(.*)\\].*"); protected List<ImportMorphWidth> morphWidths; protected ImportMorphWidth current; public MorphologicalWidthParser() { morphWidths = new ArrayList<ImportMorphWidth>(); } @Override protected void reset() { current = new ImportMorphWidth(); } @Override protected void finish() { if (current != null) { morphWidths.add(current); } } @Override protected void handleLine(int lineNum, String line) { if (line.startsWith(START_META_CHAR)) { handleMetaLine(stripMetaLine(line)); } else { handleDataLine(line); } } protected void handleMetaLine(String line) { if (handleMetaUnit(line)) { return; } else { log.warn("MWP: Unknown meta line: '" + line + "'"); } } protected boolean handleMetaUnit(String line) { Matcher m = META_UNIT.matcher(line); if (m.matches()) { String unit = m.group(1); current.setUnit(new ImportUnit(unit)); return true; } return false; } protected void handleDataLine(String line) { String[] vals = line.split(SEPERATOR_CHAR); if (vals == null || vals.length < 2) { log.warn("MWP: skip invalid data line: '" + line + "'"); return; } try { BigDecimal km = new BigDecimal(nf.parse(vals[0]).doubleValue()); BigDecimal width = new BigDecimal(nf.parse(vals[1]).doubleValue()); String desc = vals.length > 2 ? vals[2] : null; current.addValue(new ImportMorphWidthValue( km, width, desc )); } catch (ParseException pe) { log.warn("MWP: Error while parsing numbers in '" + line + "'"); } } public List<ImportMorphWidth> getMorphologicalWidths() { return morphWidths; } } // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :