Mercurial > dive4elements > river

comparison flys-artifacts/src/main/java/de/intevation/flys/artifacts/states/LocationDistanceSelect.java @ 3818:dc18457b1cef

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merged flys-artifacts/pre2.7-2012-03-16
author Thomas Arendsen Hein <thomas@intevation.de>
date Fri, 28 Sep 2012 12:14:59 +0200
parents ee5310134463
children c1f445b94d03
comparison
equal deleted inserted replaced
2456:60ab1054069d 3818:dc18457b1cef
1 package de.intevation.flys.artifacts.states;
2
3 import org.apache.log4j.Logger;
4
5 import gnu.trove.TDoubleArrayList;
6
7 import de.intevation.artifacts.Artifact;
8
9 import de.intevation.artifactdatabase.data.StateData;
10
11 import de.intevation.flys.artifacts.WINFOArtifact;
12
13
14 /**
15 * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a>
16 */
17 public class LocationDistanceSelect
18 extends ComputationRangeState
19 {
20
21 /** The logger used in this class. */
22 private static Logger logger = Logger.getLogger(LocationDistanceSelect.class);
23
24 /** The name of the 'mode' field. */
25 public static final String MODE = "ld_mode";
26
27 /** The name of the 'locations' field. */
28 public static final String LOCATIONS = "ld_locations";
29
30
31 /**
32 * The default constructor that initializes an empty State object.
33 */
34 public LocationDistanceSelect() {
35 }
36
37
38 @Override
39 protected String getUIProvider() {
40 return "location_distance_panel";
41 }
42
43
44 @Override
45 public boolean validate(Artifact artifact)
46 throws IllegalArgumentException
47 {
48 logger.debug("LocationDistanceSelect.validate");
49
50 WINFOArtifact flys = (WINFOArtifact) artifact;
51
52 if (flys.isRange()) {
53 return super.validate(flys);
54 }
55 else {
56 return validateLocations(flys);
57 }
58 }
59
60
61 protected boolean validateLocations(WINFOArtifact flys)
62 throws IllegalArgumentException
63 {
64 StateData dValues = getData(flys, LOCATIONS);
65 String values = dValues != null ? (String)dValues.getValue() : null;
66
67 if (values == null || values.length() == 0) {
68 throw new IllegalArgumentException("error_empty_state");
69 }
70
71 double[] absMinMax = getMinMax(flys);
72 double[] relMinMax = getMinMaxFromString(values);
73
74 if (relMinMax[0] < absMinMax[0] || relMinMax[0] > absMinMax[1]) {
75 throw new IllegalArgumentException("error_feed_from_out_of_range");
76 }
77
78 if (relMinMax[1] > absMinMax[1] || relMinMax[1] < absMinMax[0]) {
79 throw new IllegalArgumentException("error_feed_to_out_of_range");
80 }
81
82 return true;
83 }
84
85
86 /**
87 * Extracts the min/max values from String <i>s</i>. An
88 * IllegalArgumentException is thrown if there is a value that throws a
89 * NumberFormatException.
90 *
91 * @param s String that contains whitespace separated double values.
92 *
93 * @return a 2dmin array [min,max].
94 */
95 public static double[] getMinMaxFromString(String s)
96 throws IllegalArgumentException
97 {
98 String[] values = s.split(" ");
99
100 double[] minmax = new double[] {
101 Double.MAX_VALUE,
102 -Double.MAX_VALUE };
103
104 for (String v: values) {
105 try {
106 double value = Double.valueOf(v);
107
108 minmax[0] = minmax[0] < value ? minmax[0] : value;
109 minmax[1] = minmax[1] > value ? minmax[1] : value;
110 }
111 catch (NumberFormatException nfe) {
112 throw new IllegalArgumentException(
113 "error_invalid_double_value");
114 }
115 }
116
117 return minmax;
118 }
119
120
121 public static double[] getLocations(WINFOArtifact flys) {
122 StateData data = flys.getData(LOCATIONS);
123 String value = data != null ? (String) data.getValue() : null;
124
125 if (value == null || value.length() == 0) {
126 logger.warn("No location data given.");
127 return null;
128 }
129
130 String[] splitted = value.split(" ");
131 TDoubleArrayList values = new TDoubleArrayList();
132
133 for (String split: splitted) {
134 try {
135 values.add(Double.valueOf(split));
136 }
137 catch (NumberFormatException nfe) {
138 logger.warn(nfe, nfe);
139 }
140 }
141
142 return values.toNativeArray();
143 }
144 }
145 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 :
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