Mercurial > dive4elements > river
comparison artifacts/src/main/java/org/dive4elements/river/artifacts/states/LocationSelect.java @ 5838:5aa05a7a34b7
Rename modules to more fitting names.
author | Sascha L. Teichmann <teichmann@intevation.de> |
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date | Thu, 25 Apr 2013 15:23:37 +0200 |
parents | flys-artifacts/src/main/java/org/dive4elements/river/artifacts/states/LocationSelect.java@bd047b71ab37 |
children | 4897a58c8746 |
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5837:d9901a08d0a6 | 5838:5aa05a7a34b7 |
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1 package org.dive4elements.river.artifacts.states; | |
2 | |
3 import gnu.trove.TDoubleArrayList; | |
4 | |
5 import org.apache.log4j.Logger; | |
6 | |
7 import org.w3c.dom.Element; | |
8 | |
9 import org.dive4elements.artifacts.Artifact; | |
10 import org.dive4elements.artifacts.CallContext; | |
11 | |
12 import org.dive4elements.artifacts.common.utils.XMLUtils; | |
13 | |
14 import org.dive4elements.artifactdatabase.data.StateData; | |
15 | |
16 import org.dive4elements.river.artifacts.FLYSArtifact; | |
17 | |
18 | |
19 /** | |
20 * This state is used to realize the input of multiple locations as string. | |
21 * | |
22 * The string should be a whitespace separated list of double values where each | |
23 * double value represents a location. | |
24 * | |
25 * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a> | |
26 */ | |
27 public class LocationSelect extends LocationDistanceSelect { | |
28 | |
29 /** The logger used in this class.*/ | |
30 private static Logger logger = Logger.getLogger(LocationSelect.class); | |
31 | |
32 | |
33 public LocationSelect() { | |
34 } | |
35 | |
36 | |
37 /** UI Provider (which input method should the client provide to user. */ | |
38 @Override | |
39 protected String getUIProvider() { | |
40 return "location_panel"; | |
41 } | |
42 | |
43 | |
44 @Override | |
45 protected Element[] createItems( | |
46 XMLUtils.ElementCreator cr, | |
47 Artifact artifact, | |
48 String name, | |
49 CallContext context) | |
50 { | |
51 double[] minmax = getMinMax(artifact); | |
52 | |
53 double minVal = Double.MIN_VALUE; | |
54 double maxVal = Double.MAX_VALUE; | |
55 | |
56 if (minmax != null) { | |
57 minVal = minmax[0]; | |
58 maxVal = minmax[1]; | |
59 } | |
60 else { | |
61 logger.warn("Could not read min/max distance values!"); | |
62 } | |
63 | |
64 if (name.equals(LOCATIONS)) { | |
65 Element min = createItem( | |
66 cr, | |
67 new String[] {"min", new Double(minVal).toString()}); | |
68 | |
69 Element max = createItem( | |
70 cr, | |
71 new String[] {"max", new Double(maxVal).toString()}); | |
72 | |
73 return new Element[] { min, max }; | |
74 } | |
75 | |
76 return null; | |
77 } | |
78 | |
79 | |
80 /** Validates data from artifact. */ | |
81 @Override | |
82 public boolean validate(Artifact artifact) | |
83 throws IllegalArgumentException | |
84 { | |
85 logger.debug("LocationSelect.validate"); | |
86 | |
87 FLYSArtifact flys = (FLYSArtifact) artifact; | |
88 StateData data = getData(flys, LOCATIONS); | |
89 | |
90 String locationStr = data != null | |
91 ? (String) data.getValue() | |
92 : null; | |
93 | |
94 if (locationStr == null || locationStr.length() == 0) { | |
95 logger.error("No locations given."); | |
96 throw new IllegalArgumentException("error_empty_state"); | |
97 } | |
98 | |
99 double[] minmax = getMinMax(artifact); | |
100 double[] mm = extractLocations(locationStr); | |
101 | |
102 logger.debug("Inserted min location: " + mm[0]); | |
103 logger.debug("Inserted max location: " + mm[mm.length-1]); | |
104 | |
105 return validateBounds(minmax[0], minmax[1], mm[0], mm[mm.length-1], 0d); | |
106 } | |
107 | |
108 | |
109 /** | |
110 * This method takes a string that consist of whitespace separated double | |
111 * values and returns the double values as array. | |
112 * | |
113 * @param locationStr The locations inserted in this state. | |
114 * | |
115 * @return the locations as array. | |
116 */ | |
117 protected double[] extractLocations(String locationStr) { | |
118 String[] tmp = locationStr.split(" "); | |
119 TDoubleArrayList locations = new TDoubleArrayList(); | |
120 | |
121 for (String l: tmp) { | |
122 try { | |
123 locations.add(Double.parseDouble(l)); | |
124 } | |
125 catch (NumberFormatException nfe) { | |
126 logger.warn(nfe, nfe); | |
127 } | |
128 } | |
129 | |
130 locations.sort(); | |
131 | |
132 return locations.toNativeArray(); | |
133 } | |
134 } | |
135 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 : |