Mercurial > dive4elements > river
view flys-artifacts/src/main/java/de/intevation/flys/artifacts/states/RangeState.java @ 4902:e1566938d04c
Added new functions to datacage templating language.
* get minimum of location/distance:
dc:fromValue($ld_mode, $ld_locations, $ld_from)
- returns -Double.MAX_VALUE if no min exists.
* get maximum of location/distance:
dc:toValue($ld_mode, $ld_locations, $ld_to)
- returns Double.MAX_VALUE if no max exists.
author | Raimund Renkert <rrenkert@intevation.de> |
---|---|
date | Tue, 29 Jan 2013 17:11:26 +0100 |
parents | 1358d0c8481c |
children | 53be73133104 |
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package de.intevation.flys.artifacts.states; import org.apache.log4j.Logger; import de.intevation.artifacts.Artifact; import de.intevation.artifactdatabase.data.StateData; import de.intevation.flys.artifacts.access.RangeAccess; import de.intevation.flys.artifacts.FLYSArtifact; /** * State in which km range is set. * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a> */ public abstract class RangeState extends DefaultState { /** The logger that is used in this class. */ private Logger logger = Logger.getLogger(RangeState.class); public RangeState() { } protected abstract double[] getMinMax(Artifact artifact); protected boolean validateBounds( double fromValid, double toValid, double from, double to) throws IllegalArgumentException { if (from < fromValid) { logger.error( "Invalid 'from'. " + from + " is smaller than " + fromValid); throw new IllegalArgumentException("error_feed_from_out_of_range"); } else if (to > toValid) { logger.error( "Invalid 'to'. " + to + " is bigger than " + toValid); throw new IllegalArgumentException("error_feed_to_out_of_range"); } return true; } /** * Validates a given range with a given valid range. * * @param fromValid Valid lower value of the range. * @param toValid Valid upper value of the range. * @param from The lower value. * @param to The upper value. * @param step The step width. * * @return true, if everything was fine, otherwise an exception is thrown. */ protected boolean validateBounds( double fromValid, double toValid, double from, double to, double step) throws IllegalArgumentException { logger.debug("RangeState.validateRange"); // XXX The step width is not validated at the moment! return validateBounds(fromValid, toValid, from, to); } @Override public boolean validate(Artifact artifact) throws IllegalArgumentException { FLYSArtifact flys = (FLYSArtifact) artifact; try { RangeAccess rangeAccess = new RangeAccess(flys, null); double from = rangeAccess.getFrom(); double to = rangeAccess.getTo(); double step = rangeAccess.getStep(); double[] minmax = getMinMax(flys); return validateBounds(minmax[0], minmax[1], from, to, step); } catch (NumberFormatException nfe) { throw new IllegalArgumentException("error_invalid_double_value"); } catch (NullPointerException npe) { throw new IllegalArgumentException("error_empty_state"); } } } // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 :