Mercurial > dive4elements > river

annotate flys-artifacts/src/main/java/de/intevation/flys/artifacts/model/DischargeTables.java @ 5200:42bb6ff78d1b 2.9.11

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Directly set the connectionInitSqls on the datasource Somehow the factory fails to set the connectionInitSqls if we add it to the dbcpProperties. So we now set it directly
author Andre Heinecke <aheinecke@intevation.de>
date Fri, 08 Mar 2013 11:48:33 +0100
parents dbe9b7d6b80b
children 5f38d1c39ebd
rev   line source
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e8dfe6ba2000 Fetch w/q values of discharge tables for given gauges.
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1 package de.intevation.flys.artifacts.model;
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2
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3 import java.util.List;
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4 import java.util.Map;
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5 import java.util.HashMap;
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6 import java.util.Arrays;
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7
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8 import java.io.Serializable;
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10 import org.hibernate.Session;
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11 import org.hibernate.Query;
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13 import org.apache.log4j.Logger;
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15 import de.intevation.flys.backend.SessionHolder;
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16 import de.intevation.flys.model.Gauge;
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17 import de.intevation.flys.model.DischargeTable;
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18 import de.intevation.flys.model.DischargeTableValue;
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20 import gnu.trove.TDoubleArrayList;
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22 /** Documentation goes here. */
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23 public class DischargeTables
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24 implements Serializable
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25 {
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26 /** Private logger. */
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27 private static Logger log = Logger.getLogger(DischargeTables.class);
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29 /** Scale to convert discharge table values of master table into [cm] */
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30 public static final double MASTER_SCALE = 100d;
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31
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32 /** Scale to convert discharge table values of historical tables into [cm] */
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33 public static final double HISTORICAL_SCALE = 1d;
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35 public static final int MASTER = 0;
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37 protected List<String> gaugeNames;
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39 protected String riverName;
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41 protected double scale;
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43 protected int kind;
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45 protected Map<String, double [][]> values;
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47 public DischargeTables() {
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48 }
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50 public DischargeTables(String riverName, String gaugeName) {
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51 this(riverName, gaugeName, MASTER);
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52 }
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54 public DischargeTables(String riverName, String gaugeName, int kind) {
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55 this(riverName, new String [] { gaugeName }, kind);
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56 }
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58 public DischargeTables(String riverName, String [] gaugeNames) {
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59 this(riverName, gaugeNames, MASTER);
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60 }
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62 public DischargeTables(String riverName, String [] gaugeNames, int kind) {
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63 this(riverName, Arrays.asList(gaugeNames), kind);
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64 }
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66 public DischargeTables(
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67 String riverName,
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68 List<String> gaugeNames,
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69 int kind
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70 ) {
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71 scale = Double.NaN;
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72 this.kind = kind;
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73 this.riverName = riverName;
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74 this.gaugeNames = gaugeNames;
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75 }
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76
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77 public double [][] getFirstTable() {
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78 return getFirstTable(MASTER_SCALE);
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79 }
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81 public double [][] getFirstTable(double scale) {
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82 Map<String, double [][]> values = getValues(scale);
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83 for (double [][] table: values.values()) {
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84 return table;
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85 }
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86 return null;
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87 }
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89 public Map<String, double [][]> getValues() {
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90 return getValues(MASTER_SCALE);
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91 }
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92
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93 public Map<String, double [][]> getValues(double scale) {
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94 if (values == null || scale != this.scale) {
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95 values = loadValues(scale);
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96 this.scale = scale;
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97 }
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98 return values;
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99 }
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100
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101 /**
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102 * Returns mapping of gauge name to values.
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103 */
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104 protected Map<String, double [][]> loadValues(double scale) {
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105 Map<String, double [][]> values = new HashMap<String, double [][]>();
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106
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107 Session session = SessionHolder.HOLDER.get();
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108
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109 Query gaugeQuery = session.createQuery(
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110 "from Gauge where name=:gauge and river.name=:river");
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111 gaugeQuery.setParameter("river", riverName);
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113 for (String gaugeName: gaugeNames) {
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parents: 154
diff changeset
114 gaugeQuery.setParameter("gauge", gaugeName);
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diff changeset
115 List<Gauge> gauges = gaugeQuery.list();
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diff changeset
116 if (gauges.isEmpty()) {
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diff changeset
117 log.warn(
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diff changeset
118 "no gauge '"+gaugeName+"' at river '"+riverName+"'");
ea3a438a7021 Backend access: Static methods are using the SessionHolder, too.
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parents: 154
diff changeset
119 continue;
ea3a438a7021 Backend access: Static methods are using the SessionHolder, too.
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parents: 154
diff changeset
120 }
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diff changeset
121 Gauge gauge = gauges.get(0);
146
e8dfe6ba2000 Fetch w/q values of discharge tables for given gauges.
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parents:
diff changeset
122
311
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diff changeset
123 List<DischargeTable> tables = gauge.getDischargeTables();
146
e8dfe6ba2000 Fetch w/q values of discharge tables for given gauges.
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parents:
diff changeset
124
311
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diff changeset
125 if (tables.isEmpty()) {
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diff changeset
126 log.warn(
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diff changeset
127 "no discharge table for gauge '" + gaugeName + "'");
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diff changeset
128 continue;
146
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parents:
diff changeset
129 }
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parents:
diff changeset
130
311
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diff changeset
131 // TODO: Filter by time interval
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132 DischargeTable table = null;
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133 for (DischargeTable dt : tables) {
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diff changeset
134 if (dt.getKind() == 0) {
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135 table = dt;
dbe9b7d6b80b Find correct discharge table for gauge.
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diff changeset
136 break;
dbe9b7d6b80b Find correct discharge table for gauge.
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parents: 4226
diff changeset
137 }
dbe9b7d6b80b Find correct discharge table for gauge.
Raimund Renkert <rrenkert@intevation.de>
parents: 4226
diff changeset
138 }
dbe9b7d6b80b Find correct discharge table for gauge.
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parents: 4226
diff changeset
139 if (table == null) {
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parents: 4226
diff changeset
140 table = tables.get(0);
dbe9b7d6b80b Find correct discharge table for gauge.
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parents: 4226
diff changeset
141 }
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diff changeset
142 double [][] vs = loadDischargeTableValues(table, scale);
329
0b2358bc716d Discharge table: Added static method getWForQ() to interpolate a w value for a given q value based on a given discharge table.
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diff changeset
143
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diff changeset
144 values.put(gaugeName, vs);
146
e8dfe6ba2000 Fetch w/q values of discharge tables for given gauges.
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parents:
diff changeset
145 }
311
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diff changeset
146
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diff changeset
147 return values;
146
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parents:
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148 }
329
0b2358bc716d Discharge table: Added static method getWForQ() to interpolate a w value for a given q value based on a given discharge table.
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diff changeset
149
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59af81364eb1 Improved the 'historical discharge' calculation: implemented findValueForW().
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1929
diff changeset
150
59af81364eb1 Improved the 'historical discharge' calculation: implemented findValueForW().
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1929
diff changeset
151 /**
59af81364eb1 Improved the 'historical discharge' calculation: implemented findValueForW().
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1929
diff changeset
152 * @param table The discharge table
59af81364eb1 Improved the 'historical discharge' calculation: implemented findValueForW().
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parents: 1929
diff changeset
153 * @param scale The scale factor to adjust W and Q values.
59af81364eb1 Improved the 'historical discharge' calculation: implemented findValueForW().
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1929
diff changeset
154 *
59af81364eb1 Improved the 'historical discharge' calculation: implemented findValueForW().
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1929
diff changeset
155 * @return the values of a discharge table.
59af81364eb1 Improved the 'historical discharge' calculation: implemented findValueForW().
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1929
diff changeset
156 */
59af81364eb1 Improved the 'historical discharge' calculation: implemented findValueForW().
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1929
diff changeset
157 public static double[][] loadDischargeTableValues(
59af81364eb1 Improved the 'historical discharge' calculation: implemented findValueForW().
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1929
diff changeset
158 DischargeTable table,
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diff changeset
159 double scale
2230
59af81364eb1 Improved the 'historical discharge' calculation: implemented findValueForW().
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parents: 1929
diff changeset
160 ) {
59af81364eb1 Improved the 'historical discharge' calculation: implemented findValueForW().
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1929
diff changeset
161 List<DischargeTableValue> dtvs = table.getDischargeTableValues();
59af81364eb1 Improved the 'historical discharge' calculation: implemented findValueForW().
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diff changeset
162
59af81364eb1 Improved the 'historical discharge' calculation: implemented findValueForW().
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1929
diff changeset
163 final double [][] vs = new double[2][dtvs.size()];
59af81364eb1 Improved the 'historical discharge' calculation: implemented findValueForW().
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diff changeset
164
59af81364eb1 Improved the 'historical discharge' calculation: implemented findValueForW().
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1929
diff changeset
165 int idx = 0;
59af81364eb1 Improved the 'historical discharge' calculation: implemented findValueForW().
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parents: 1929
diff changeset
166 for (DischargeTableValue dtv: dtvs) {
59af81364eb1 Improved the 'historical discharge' calculation: implemented findValueForW().
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parents: 1929
diff changeset
167 double q = dtv.getQ().doubleValue();
59af81364eb1 Improved the 'historical discharge' calculation: implemented findValueForW().
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parents: 1929
diff changeset
168 vs[0][idx] = q * scale;
59af81364eb1 Improved the 'historical discharge' calculation: implemented findValueForW().
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1929
diff changeset
169 vs[1][idx] = dtv.getW().doubleValue() * scale;
59af81364eb1 Improved the 'historical discharge' calculation: implemented findValueForW().
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parents: 1929
diff changeset
170 ++idx;
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parents: 1929
diff changeset
171 }
59af81364eb1 Improved the 'historical discharge' calculation: implemented findValueForW().
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1929
diff changeset
172
59af81364eb1 Improved the 'historical discharge' calculation: implemented findValueForW().
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1929
diff changeset
173 return vs;
59af81364eb1 Improved the 'historical discharge' calculation: implemented findValueForW().
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1929
diff changeset
174 }
59af81364eb1 Improved the 'historical discharge' calculation: implemented findValueForW().
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1929
diff changeset
175
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diff changeset
176 private static final double EPSILON = 1e-5;
2230
59af81364eb1 Improved the 'historical discharge' calculation: implemented findValueForW().
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parents: 1929
diff changeset
177
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diff changeset
178 private static final boolean epsEquals(double a, double b) {
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diff changeset
179 return Math.abs(a - b) < EPSILON;
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diff changeset
180 }
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diff changeset
181
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diff changeset
182 private static final boolean between(double a, double b, double x) {
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diff changeset
183 if (a > b) { double t = a; a = b; b = t; }
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diff changeset
184 return x > a && x < b;
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diff changeset
185 }
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diff changeset
186
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diff changeset
187 public static double [] getQsForW(double [][] values, double w) {
378
20c3a5b36434 Repaired DischargeTables.getQForW()
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parents: 376
diff changeset
188
20c3a5b36434 Repaired DischargeTables.getQForW()
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parents: 376
diff changeset
189 boolean debug = log.isDebugEnabled();
20c3a5b36434 Repaired DischargeTables.getQForW()
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parents: 376
diff changeset
190
20c3a5b36434 Repaired DischargeTables.getQForW()
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parents: 376
diff changeset
191 if (debug) {
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diff changeset
192 log.debug("getQsForW: W = " + w);
329
0b2358bc716d Discharge table: Added static method getWForQ() to interpolate a w value for a given q value based on a given discharge table.
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parents: 328
diff changeset
193 }
0b2358bc716d Discharge table: Added static method getWForQ() to interpolate a w value for a given q value based on a given discharge table.
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parents: 328
diff changeset
194
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diff changeset
195 double [] qs = values[0];
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parents: 2230
diff changeset
196 double [] ws = values[1];
329
0b2358bc716d Discharge table: Added static method getWForQ() to interpolate a w value for a given q value based on a given discharge table.
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parents: 328
diff changeset
197
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diff changeset
198 int N = Math.min(qs.length, ws.length);
329
0b2358bc716d Discharge table: Added static method getWForQ() to interpolate a w value for a given q value based on a given discharge table.
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parents: 328
diff changeset
199
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diff changeset
200 if (N == 0) {
378
20c3a5b36434 Repaired DischargeTables.getQForW()
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parents: 376
diff changeset
201 if (debug) {
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diff changeset
202 log.debug("Q(" + w + ") = []");
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diff changeset
203 }
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parents: 2230
diff changeset
204 return new double [0];
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parents: 2230
diff changeset
205 }
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parents: 2230
diff changeset
206
899ca89f497e Another partial fix for flys/issue499: Do the W to Q conversions
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parents: 2230
diff changeset
207 TDoubleArrayList outQs = new TDoubleArrayList();
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parents: 2230
diff changeset
208
899ca89f497e Another partial fix for flys/issue499: Do the W to Q conversions
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parents: 2230
diff changeset
209 if (epsEquals(ws[0], w)) {
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parents: 2230
diff changeset
210 outQs.add(qs[0]);
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parents: 2230
diff changeset
211 }
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2230
diff changeset
212
899ca89f497e Another partial fix for flys/issue499: Do the W to Q conversions
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parents: 2230
diff changeset
213 for (int i = 1; i < N; ++i) {
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parents: 2230
diff changeset
214 if (epsEquals(ws[i], w)) {
899ca89f497e Another partial fix for flys/issue499: Do the W to Q conversions
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parents: 2230
diff changeset
215 outQs.add(qs[i]);
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parents: 2230
diff changeset
216 }
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parents: 2230
diff changeset
217 else if (between(ws[i-1], ws[i], w)) {
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parents: 2230
diff changeset
218 double w1 = ws[i-1];
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parents: 2230
diff changeset
219 double w2 = ws[i];
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parents: 2230
diff changeset
220 double q1 = qs[i-1];
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parents: 2230
diff changeset
221 double q2 = qs[i];
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parents: 2230
diff changeset
222
899ca89f497e Another partial fix for flys/issue499: Do the W to Q conversions
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parents: 2230
diff changeset
223 // q1 = m*w1 + b
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parents: 2230
diff changeset
224 // q2 = m*w2 + b
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parents: 2230
diff changeset
225 // q2 - q1 = m*(w2 - w1)
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parents: 2230
diff changeset
226 // m = (q2 - q1)/(w2 - w1) # w2 != w1
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parents: 2230
diff changeset
227 // b = q1 - m*w1
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parents: 2230
diff changeset
228 // w1 != w2
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diff changeset
229
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parents: 2230
diff changeset
230 double m = (q2 - q1)/(w2 - w1);
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parents: 2230
diff changeset
231 double b = q1 - m*w1;
899ca89f497e Another partial fix for flys/issue499: Do the W to Q conversions
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parents: 2230
diff changeset
232 double q = w*m + b;
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233
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234 outQs.add(q);
378
20c3a5b36434 Repaired DischargeTables.getQForW()
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235 }
329
0b2358bc716d Discharge table: Added static method getWForQ() to interpolate a w value for a given q value based on a given discharge table.
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236 }
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237
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238 double [] result = outQs.toNativeArray();
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239
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240 if (debug) {
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241 log.debug("Q(" + w + ") = " + Arrays.toString(result));
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242 }
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243
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244 return result;
329
0b2358bc716d Discharge table: Added static method getWForQ() to interpolate a w value for a given q value based on a given discharge table.
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245 }
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246
cb9f22c3553f DischargeTables: Added missing getWsForQ()
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247 public static double [] getWsForQ(double [][] values, double q) {
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248
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249 boolean debug = log.isDebugEnabled();
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250
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251 if (debug) {
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252 log.debug("getWsForQ: W = " + q);
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253 }
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254
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255 double [] qs = values[0];
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256 double [] ws = values[1];
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257
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258 int N = Math.min(qs.length, ws.length);
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259
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260 if (N == 0) {
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261 if (debug) {
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262 log.debug("W(" + q + ") = []");
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263 }
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264 return new double [0];
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265 }
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266
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267 TDoubleArrayList outWs = new TDoubleArrayList();
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268
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269 if (epsEquals(qs[0], q)) {
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270 outWs.add(ws[0]);
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271 }
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272
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273 for (int i = 1; i < N; ++i) {
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274 if (epsEquals(qs[i], q)) {
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275 outWs.add(ws[i]);
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276 }
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277 else if (between(qs[i-1], qs[i], q)) {
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278 double w1 = ws[i-1];
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279 double w2 = ws[i];
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280 double q1 = qs[i-1];
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281 double q2 = qs[i];
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282
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283 // w1 = m*q1 + b
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284 // w2 = m*q2 + b
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285 // w2 - w1 = m*(q2 - q1)
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286 // m = (w2 - w1)/(q2 - q1) # q2 != q1
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287 // b = w1 - m*q1
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288 // q1 != q2
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289
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290 double m = (w2 - w1)/(q2 - q1);
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291 double b = w1 - m*q1;
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292 double w = q*m + b;
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293
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294 outWs.add(w);
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295 }
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296 }
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297
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298 double [] result = outWs.toNativeArray();
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299
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300 if (debug) {
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301 log.debug("W(" + q + ") = " + Arrays.toString(result));
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302 }
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303
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304 return result;
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305 }
146
e8dfe6ba2000 Fetch w/q values of discharge tables for given gauges.
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306 }
e8dfe6ba2000 Fetch w/q values of discharge tables for given gauges.
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307 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org