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comparison flys-artifacts/src/main/java/de/intevation/flys/artifacts/states/ComputationRangeState.java @ 921:610d0e0f4f85

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#159 Modifications in the transition model to support a state with a kilometer range input only. flys-artifacts/trunk@2270 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Ingo Weinzierl <ingo.weinzierl@intevation.de>
date Thu, 30 Jun 2011 11:32:17 +0000
parents
children 022f62c75878
comparison
equal deleted inserted replaced
920:a618dd6d80ea 921:610d0e0f4f85
1 package de.intevation.flys.artifacts.states;
2
3 import java.util.List;
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 import de.intevation.artifactdatabase.state.Facet;
17
18 import de.intevation.flys.model.River;
19
20 import de.intevation.flys.artifacts.FLYSArtifact;
21 import de.intevation.flys.artifacts.WINFOArtifact;
22 import de.intevation.flys.artifacts.model.CalculationResult;
23 import de.intevation.flys.artifacts.model.FacetTypes;
24 import de.intevation.flys.artifacts.model.RiverFactory;
25 import de.intevation.flys.artifacts.model.WaterlevelFacet;
26 import de.intevation.flys.artifacts.model.WQKms;
27 import de.intevation.flys.artifacts.resources.Resources;
28
29 /**
30 * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a>
31 */
32 public class ComputationRangeState
33 extends RangeState
34 implements FacetTypes
35 {
36 private static Logger logger =
37 Logger.getLogger(ComputationRangeState.class);
38
39
40 /** The name of the 'from' field. */
41 public static final String FROM = "ld_from";
42
43 /** The name of the 'to' field. */
44 public static final String TO = "ld_to";
45
46 /** The name of the 'step' field. */
47 public static final String STEP = "ld_step";
48
49 /** The default step width.*/
50 public static final int DEFAULT_STEP = 100;
51
52
53
54 public ComputationRangeState() {
55 }
56
57
58 @Override
59 protected Element createData(
60 XMLUtils.ElementCreator cr,
61 Artifact artifact,
62 StateData data,
63 CallContext context)
64 {
65 Element select = ProtocolUtils.createArtNode(
66 cr, "select", null, null);
67
68 cr.addAttr(select, "name", data.getName(), true);
69
70 Element label = ProtocolUtils.createArtNode(
71 cr, "label", null, null);
72
73 Element choices = ProtocolUtils.createArtNode(
74 cr, "choices", null, null);
75
76 label.setTextContent(Resources.getMsg(
77 context.getMeta(),
78 data.getName(),
79 data.getName()));
80
81 select.appendChild(label);
82
83 return select;
84 }
85
86
87 @Override
88 protected Element[] createItems(
89 XMLUtils.ElementCreator cr,
90 Artifact artifact,
91 String name,
92 CallContext context)
93 {
94 double[] minmax = getMinMax(artifact);
95
96 double minVal = Double.MIN_VALUE;
97 double maxVal = Double.MAX_VALUE;
98
99 if (minmax != null) {
100 minVal = minmax[0];
101 maxVal = minmax[1];
102 }
103 else {
104 logger.warn("Could not read min/max distance values!");
105 }
106
107 if (name.equals("ld_from")) {
108 Element min = createItem(
109 cr,
110 new String[] {"min", new Double(minVal).toString()});
111
112 return new Element[] { min };
113 }
114 else if (name.equals("ld_to")) {
115 Element max = createItem(
116 cr,
117 new String[] {"max", new Double(maxVal).toString()});
118
119 return new Element[] { max };
120 }
121 else {
122 Element step = createItem(
123 cr,
124 new String[] {"step", String.valueOf(getDefaultStep())});
125 return new Element[] { step };
126 }
127
128 }
129
130
131 protected Element createItem(XMLUtils.ElementCreator cr, Object obj) {
132 Element item = ProtocolUtils.createArtNode(cr, "item", null, null);
133 Element label = ProtocolUtils.createArtNode(cr, "label", null, null);
134 Element value = ProtocolUtils.createArtNode(cr, "value", null, null);
135
136 String[] arr = (String[]) obj;
137
138 label.setTextContent(arr[0]);
139 value.setTextContent(arr[1]);
140
141 item.appendChild(label);
142 item.appendChild(value);
143
144 return item;
145 }
146
147
148 @Override
149 public Object computeFeed(
150 FLYSArtifact artifact,
151 String hash,
152 CallContext context,
153 List<Facet> facets,
154 Object old
155 ) {
156 logger.debug("computeFeed");
157
158 WINFOArtifact winfo = (WINFOArtifact)artifact;
159
160 CalculationResult res = old instanceof CalculationResult
161 ? (CalculationResult)old
162 : winfo.getDischargeCurveData();
163
164 if (facets == null) {
165 logger.debug("generate no facets");
166 return res;
167 }
168
169 WQKms [] wqkms = (WQKms [])res.getData();
170
171 logger.debug("generate " + wqkms.length + " facets.");
172
173 String stateID = winfo.getCurrentStateId();
174
175 for (int i = 0; i < wqkms.length; ++i) {
176 String name = wqkms[i].getName();
177 facets.add(new WaterlevelFacet(
178 i, DISCHARGE_CURVE, name, ComputeType.FEED, stateID, hash));
179 }
180
181
182 return res;
183 }
184
185
186 @Override
187 protected double[] getMinMax(Artifact artifact) {
188 FLYSArtifact flysArtifact = (FLYSArtifact) artifact;
189 StateData data = getData(flysArtifact, "river");
190
191 String name = data != null ? (String) data.getValue() : "";
192
193 logger.debug("Search for the min/max distances of '" + name + "'");
194
195 River river = RiverFactory.getRiver(name);
196
197 return river != null ? river.determineMinMaxDistance() : null;
198 }
199
200
201 protected double getDefaultStep() {
202 return DEFAULT_STEP;
203 }
204
205
206 @Override
207 protected String getLowerField() {
208 return FROM;
209 }
210
211
212 @Override
213 protected String getUpperField() {
214 return TO;
215 }
216
217
218 @Override
219 protected String getStepField() {
220 return STEP;
221 }
222 }
223 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 :
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