Mercurial > dive4elements > river

comparison flys-artifacts/src/main/java/de/intevation/flys/artifacts/states/LocationDistanceSelect.java @ 430:7ab81ff32111 2.3

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merged flys-artifacts/2.3
author Thomas Arendsen Hein <thomas@intevation.de>
date Fri, 28 Sep 2012 12:14:10 +0200
parents c21fb8de54f8
children 929137ee8154
comparison
equal deleted inserted replaced
290:a6f56ed9238b 430:7ab81ff32111
1 package de.intevation.flys.artifacts.states;
2
3 import java.util.Map;
4
5 import org.apache.log4j.Logger;
6
7 import org.w3c.dom.Element;
8
9 import de.intevation.artifacts.Artifact;
10 import de.intevation.artifacts.CallContext;
11
12 import de.intevation.artifacts.common.utils.XMLUtils;
13
14 import de.intevation.artifactdatabase.ProtocolUtils;
15 import de.intevation.artifactdatabase.data.StateData;
16
17 import de.intevation.flys.model.River;
18
19 import de.intevation.flys.artifacts.FLYSArtifact;
20 import de.intevation.flys.artifacts.model.RiverFactory;
21 import de.intevation.flys.artifacts.resources.Resources;
22
23 /**
24 * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a>
25 */
26 public class LocationDistanceSelect extends RangeState {
27
28 /** The logger used in this class.*/
29 private static Logger logger = Logger.getLogger(LocationDistanceSelect.class);
30
31
32 /** The default step width.*/
33 public static final String DEFAULT_STEP = "100";
34
35 /** The name of the 'from' field. */
36 public static final String FROM = "ld_from";
37
38 /** The name of the 'to' field. */
39 public static final String TO = "ld_to";
40
41 /** The name of the 'step' field. */
42 public static final String STEP = "ld_step";
43
44 /**
45 * The default constructor that initializes an empty State object.
46 */
47 public LocationDistanceSelect() {
48 }
49
50 protected Element createData(
51 XMLUtils.ElementCreator cr,
52 Artifact artifact,
53 StateData data,
54 CallContext context)
55 {
56 Element select = ProtocolUtils.createArtNode(
57 cr, "select", null, null);
58
59 cr.addAttr(select, "name", data.getName(), true);
60
61 Element label = ProtocolUtils.createArtNode(
62 cr, "label", null, null);
63
64 Element choices = ProtocolUtils.createArtNode(
65 cr, "choices", null, null);
66
67 label.setTextContent(Resources.getMsg(
68 context.getMeta(),
69 data.getName(),
70 data.getName()));
71
72 select.appendChild(label);
73
74 return select;
75 }
76
77
78 protected Element[] createItems(
79 XMLUtils.ElementCreator cr,
80 Artifact artifact,
81 String name,
82 CallContext context)
83 {
84 double[] minmax = getMinMaxDistance(artifact);
85
86 double minVal = Double.MIN_VALUE;
87 double maxVal = Double.MAX_VALUE;
88
89 if (minmax != null) {
90 minVal = minmax[0];
91 maxVal = minmax[1];
92 }
93 else {
94 logger.warn("Could not read min/max distance values!");
95 }
96
97 if (name.equals("ld_from")) {
98 Element min = createItem(
99 cr,
100 new String[] {"min", new Double(minVal).toString()});
101
102 return new Element[] { min };
103 }
104 else if (name.equals("ld_to")) {
105 Element max = createItem(
106 cr,
107 new String[] {"max", new Double(maxVal).toString()});
108
109 return new Element[] { max };
110 }
111 else {
112 Element step = createItem(cr, new String[] {"step", DEFAULT_STEP});
113 return new Element[] { step };
114 }
115
116 }
117
118
119 protected Element createItem(XMLUtils.ElementCreator cr, Object obj) {
120 Element item = ProtocolUtils.createArtNode(cr, "item", null, null);
121 Element label = ProtocolUtils.createArtNode(cr, "label", null, null);
122 Element value = ProtocolUtils.createArtNode(cr, "value", null, null);
123
124 String[] arr = (String[]) obj;
125
126 label.setTextContent(arr[0]);
127 value.setTextContent(arr[1]);
128
129 item.appendChild(label);
130 item.appendChild(value);
131
132 return item;
133 }
134
135
136 protected String getUIProvider() {
137 return "location_distance_panel";
138 }
139
140
141 protected double[] getMinMaxDistance(Artifact artifact) {
142 FLYSArtifact flysArtifact = (FLYSArtifact) artifact;
143 StateData data = flysArtifact.getData("river");
144
145 String name = (String) data.getValue();
146
147 logger.debug("Search for the min/max distances of '" + name + "'");
148
149 River river = RiverFactory.getRiver(name);
150
151 return river != null ? river.determineMinMaxDistance() : null;
152 }
153
154
155 @Override
156 public boolean validate(Artifact artifact, CallContext context)
157 throws IllegalArgumentException
158 {
159 logger.debug("LocationDistanceSelect.validate");
160
161 Map<String, StateData> data = getData();
162
163 String fromStr = (String) data.get(FROM).getValue();
164 String toStr = (String) data.get(TO).getValue();
165 String stepStr = (String) data.get(STEP).getValue();
166
167 if (fromStr == null || toStr == null || stepStr == null) {
168 throw new IllegalArgumentException("error_empty_state");
169 }
170
171 try {
172 double from = Double.parseDouble(fromStr);
173 double to = Double.parseDouble(toStr);
174 double step = Double.parseDouble(stepStr);
175
176 double[] minmaxDist = getMinMaxDistance(artifact);
177
178 return validateBounds(minmaxDist[0], minmaxDist[1], from, to, step);
179 }
180 catch (NumberFormatException nfe) {
181 throw new IllegalArgumentException("error_feed_number_format");
182 }
183 }
184 }
185 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 :
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