Mercurial > dive4elements > river

comparison artifacts/src/main/java/org/dive4elements/river/artifacts/model/OfficialLineFinder.java @ 6385:ef08c4f57ede

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Artifacts: First part of the official lines guessing.
author Sascha L. Teichmann <teichmann@intevation.de>
date Fri, 21 Jun 2013 12:46:59 +0200
parents
children d2803cc7a338
comparison
equal deleted inserted replaced
6384:2987d81ea719 6385:ef08c4f57ede
1 /* Copyright (C) 2011, 2012, 2013 by Bundesanstalt für Gewässerkunde
2 * Software engineering by Intevation GmbH
3 *
4 * This file is Free Software under the GNU AGPL (>=v3)
5 * and comes with ABSOLUTELY NO WARRANTY! Check out the
6 * documentation coming with Dive4Elements River for details.
7 */
8
9 package org.dive4elements.river.artifacts.model;
10
11 import java.util.ArrayList;
12 import java.util.Collections;
13 import java.util.HashMap;
14 import java.util.List;
15 import java.util.Map;
16
17 import net.sf.ehcache.Cache;
18 import net.sf.ehcache.Element;
19
20 import org.dive4elements.river.artifacts.D4EArtifact;
21 import org.dive4elements.river.artifacts.cache.CacheFactory;
22 import org.dive4elements.river.model.Gauge;
23 import org.dive4elements.river.model.MainValue;
24 import org.dive4elements.river.model.NamedMainValue;
25 import org.dive4elements.river.model.OfficialLine;
26 import org.dive4elements.river.model.River;
27 import org.dive4elements.river.model.Wst;
28 import org.dive4elements.river.model.WstColumn;
29
30 public class OfficialLineFinder
31 {
32 public static final String CACHE_NAME = "official-lines";
33
34 // We will only have one entry in this cache.
35 public static final String CACHE_KEY = CACHE_NAME;
36
37 public static final double EPSILON = 1e-4;
38
39
40 public static class ValueRange extends Range {
41
42 private double value;
43 private int wstId;
44 private int columnPos;
45
46 public ValueRange(
47 double start,
48 double end,
49 double value,
50 int wstId,
51 int columnPos
52 ) {
53 super(start, end);
54 this.value = value;
55 this.wstId = wstId;
56 this.columnPos = columnPos;
57 }
58
59 public boolean sameValue(double value) {
60 return Math.abs(value - this.value) < EPSILON;
61 }
62
63 public int getWstId() {
64 return wstId;
65 }
66
67 public int getColumnPos() {
68 return columnPos;
69 }
70 }
71
72 public OfficialLineFinder() {
73 }
74
75 public static Map<String, List<ValueRange>> getAll() {
76 Cache cache = CacheFactory.getCache(CACHE_NAME);
77
78 if (cache == null) {
79 return getAllUncached();
80 }
81
82 Element element = cache.get(CACHE_KEY);
83
84 if (element != null) {
85 return (Map<String, List<ValueRange>>)element.getValue();
86 }
87
88 Map<String, List<ValueRange>> result = getAllUncached();
89 if (result != null) {
90 cache.put(new Element(CACHE_KEY, result));
91 }
92 return result;
93
94 }
95
96 public static Map<String, List<ValueRange>> getAllUncached() {
97
98 Map<String, List<ValueRange>> rivers2officialLines =
99 new HashMap<String, List<ValueRange>>();
100
101
102 for (OfficialLine line: OfficialLine.fetchAllOfficalLines()) {
103 String name = line.getNamedMainValue().getName();
104 WstColumn wc = line.getWstColumn();
105 Wst wst = wc.getWst();
106
107 List<ValueRange> ranges = new ArrayList<ValueRange>();
108
109 River river = wst.getRiver();
110 List<Gauge> gauges = river.getGauges();
111 for (Gauge gauge: gauges) {
112 List<MainValue> mainValues = gauge.getMainValues();
113 for (MainValue mainValue: mainValues) {
114 NamedMainValue nmv = mainValue.getMainValue();
115 if (nmv.getName().equalsIgnoreCase(name)) {
116 // found gauge with this main value
117
118 double from = gauge.getRange().getA().doubleValue();
119 double to = gauge.getRange().getA().doubleValue();
120 double value = mainValue.getValue().doubleValue();
121 int wstId = wst.getId();
122 int pos = wc.getPosition();
123 ValueRange range =
124 new ValueRange(from, to, value, wstId, pos);
125 ranges.add(range);
126 break;
127 }
128 }
129 }
130
131 if (!ranges.isEmpty()) {
132 rivers2officialLines.put(river.getName(), ranges);
133 }
134 }
135
136 return rivers2officialLines;
137 }
138
139 public static List<OfficialLine> findOfficialLines(D4EArtifact artifact) {
140
141 Map<String, List<ValueRange>> rivers2officialLines = getAll();
142
143 String riverName = artifact.getDataAsString("river");
144
145 if (riverName == null) {
146 return Collections.<OfficialLine>emptyList();
147 }
148
149 List<ValueRange> ranges = rivers2officialLines.get(riverName);
150
151 if (ranges.isEmpty()) {
152 return Collections.<OfficialLine>emptyList();
153 }
154
155 // TODO: Figure out all the cases here.
156
157 return Collections.<OfficialLine>emptyList();
158 }
159 }
http://dive4elements.wald.intevation.org