Mercurial > dive4elements > river
comparison flys-artifacts/src/main/java/de/intevation/flys/artifacts/states/RangeState.java @ 1190:f514894ec2fd
merged flys-artifacts/2.5
| author | Thomas Arendsen Hein <thomas@intevation.de> |
|---|---|
| date | Fri, 28 Sep 2012 12:14:17 +0200 |
| parents | 9a77a9adbb36 |
| children | cafd8af6734a |
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| 917:b48c36076e17 | 1190:f514894ec2fd |
|---|---|
| 1 package de.intevation.flys.artifacts.states; | |
| 2 | |
| 3 import org.apache.log4j.Logger; | |
| 4 | |
| 5 import de.intevation.artifacts.Artifact; | |
| 6 | |
| 7 import de.intevation.artifactdatabase.data.StateData; | |
| 8 | |
| 9 import de.intevation.flys.artifacts.FLYSArtifact; | |
| 10 | |
| 11 | |
| 12 /** | |
| 13 * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a> | |
| 14 */ | |
| 15 public abstract class RangeState extends DefaultState { | |
| 16 | |
| 17 /** The logger that is used in this class.*/ | |
| 18 private Logger logger = Logger.getLogger(RangeState.class); | |
| 19 | |
| 20 | |
| 21 public RangeState() { | |
| 22 } | |
| 23 | |
| 24 | |
| 25 protected abstract String getLowerField(); | |
| 26 protected abstract String getUpperField(); | |
| 27 protected abstract String getStepField(); | |
| 28 protected abstract double[] getMinMax(Artifact artifact); | |
| 29 | |
| 30 | |
| 31 /** | |
| 32 * Validates a given range with a given valid range. | |
| 33 * | |
| 34 * @param fromValid Valid lower value of the range. | |
| 35 * @param toValid Valid upper value of the range. | |
| 36 * @param from The lower value. | |
| 37 * @param to The upper value. | |
| 38 * @param step The step width. | |
| 39 * | |
| 40 * @return true, if everything was fine, otherwise an exception is thrown. | |
| 41 */ | |
| 42 protected boolean validateBounds( | |
| 43 double fromValid, double toValid, | |
| 44 double from, double to, double step) | |
| 45 throws IllegalArgumentException | |
| 46 { | |
| 47 logger.debug("RangeState.validateRange"); | |
| 48 | |
| 49 if (from < fromValid) { | |
| 50 logger.error( | |
| 51 "Invalid 'from'. " + from + " is smaller than " + fromValid); | |
| 52 throw new IllegalArgumentException("error_feed_from_out_of_range"); | |
| 53 } | |
| 54 else if (to > toValid) { | |
| 55 logger.error( | |
| 56 "Invalid 'to'. " + to + " is bigger than " + toValid); | |
| 57 throw new IllegalArgumentException("error_feed_to_out_of_range"); | |
| 58 } | |
| 59 | |
| 60 return true; | |
| 61 } | |
| 62 | |
| 63 | |
| 64 @Override | |
| 65 public boolean validate(Artifact artifact) | |
| 66 throws IllegalArgumentException | |
| 67 { | |
| 68 FLYSArtifact flys = (FLYSArtifact) artifact; | |
| 69 | |
| 70 StateData dFrom = getData(flys, getLowerField()); | |
| 71 StateData dTo = getData(flys, getUpperField()); | |
| 72 StateData dStep = getData(flys, getStepField()); | |
| 73 | |
| 74 String fromStr = dFrom != null ? (String) dFrom.getValue() : null; | |
| 75 String toStr = dTo != null ? (String) dTo.getValue() : null; | |
| 76 String stepStr = dStep != null ? (String) dStep.getValue() : null; | |
| 77 | |
| 78 if (fromStr == null || toStr == null || stepStr == null) { | |
| 79 throw new IllegalArgumentException("error_empty_state"); | |
| 80 } | |
| 81 | |
| 82 try { | |
| 83 double from = Double.parseDouble(fromStr); | |
| 84 double to = Double.parseDouble(toStr); | |
| 85 double step = Double.parseDouble(stepStr); | |
| 86 | |
| 87 double[] minmax = getMinMax(flys); | |
| 88 | |
| 89 return validateBounds(minmax[0], minmax[1], from, to, step); | |
| 90 } | |
| 91 catch (NumberFormatException nfe) { | |
| 92 throw new IllegalArgumentException("error_invalid_double_value"); | |
| 93 } | |
| 94 } | |
| 95 } | |
| 96 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 : |