Mercurial > dive4elements > river

annotate flys-artifacts/src/main/java/de/intevation/flys/artifacts/model/DischargeTables.java @ 328:07e642030172

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Discharge tables: Added convenience constructors/methods to ease the access to the master discharge table of a gauge. flys-artifacts/trunk@1726 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Sascha L. Teichmann <sascha.teichmann@intevation.de>
date Tue, 19 Apr 2011 10:32:31 +0000
parents 94c176fdcb89
children 0b2358bc716d
rev   line source
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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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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 public class DischargeTables
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21 implements Serializable
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22 {
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23 public static final double DEFAULT_SCALE = 100.0;
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25 public static final int MASTER = 0;
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27 private static Logger log = Logger.getLogger(DischargeTables.class);
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29 protected List<String> gaugeNames;
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31 protected String riverName;
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33 protected double scale;
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34
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35 protected int kind;
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37 protected Map<String, double [][]> values;
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39 public DischargeTables() {
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40 }
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42 public DischargeTables(String riverName, String gaugeName) {
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43 this(riverName, gaugeName, MASTER);
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44 }
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45
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46 public DischargeTables(String riverName, String gaugeName, int kind) {
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47 this(riverName, new String [] { gaugeName }, kind);
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48 }
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50 public DischargeTables(String riverName, String [] gaugeNames) {
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51 this(riverName, gaugeNames, MASTER);
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52 }
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54 public DischargeTables(String riverName, String [] gaugeNames, int kind) {
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55 this(riverName, Arrays.asList(gaugeNames), kind);
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56 }
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58 public DischargeTables(
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59 String riverName,
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60 List<String> gaugeNames,
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61 int kind
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62 ) {
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63 scale = Double.NaN;
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64 this.kind = kind;
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65 this.riverName = riverName;
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66 this.gaugeNames = gaugeNames;
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67 }
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68
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69 public double [][] getFirstTable() {
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70 return getFirstTable(DEFAULT_SCALE);
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71 }
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72
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73 public double [][] getFirstTable(double scale) {
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74 Map<String, double [][]> values = getValues(scale);
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75 for (double [][] table: values.values()) {
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76 return table;
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77 }
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78 return null;
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79 }
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80
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81 public Map<String, double [][]> getValues() {
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82 return getValues(DEFAULT_SCALE);
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83 }
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84
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85 public Map<String, double [][]> getValues(double scale) {
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86 if (values == null || scale != this.scale) {
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87 values = loadValues(scale);
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88 this.scale = scale;
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89 }
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90 return values;
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91 }
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92
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93 protected Map<String, double [][]> loadValues(double scale) {
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94 Map<String, double [][]> values = new HashMap<String, double [][]>();
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96 Session session = SessionHolder.HOLDER.get();
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98 Query gaugeQuery = session.createQuery(
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99 "from Gauge where name=:gauge and river.name=:river and kind=:kind");
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100 gaugeQuery.setParameter("river", riverName);
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101 gaugeQuery.setInteger("kind", kind);
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102
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103 for (String gaugeName: gaugeNames) {
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104 gaugeQuery.setParameter("gauge", gaugeName);
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105 List<Gauge> gauges = gaugeQuery.list();
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106 if (gauges.isEmpty()) {
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107 log.warn(
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108 "no gauge '"+gaugeName+"' at river '"+riverName+"'");
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109 continue;
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110 }
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111 Gauge gauge = gauges.get(0);
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112
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113 List<DischargeTable> tables = gauge.getDischargeTables();
146
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114
311
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115 if (tables.isEmpty()) {
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116 log.warn(
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117 "no discharge table for gauge '" + gaugeName + "'");
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118 continue;
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119 }
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120
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121 // TODO: Filter by time interval
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122 DischargeTable table = tables.get(0);
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123
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124 List<DischargeTableValue> dtvs =
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125 table.getDischargeTableValues();
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126
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127 double [][] vs = new double[2][dtvs.size()];
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128
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129 int idx = 0;
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130 for (DischargeTableValue dtv: dtvs) {
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131 vs[0][idx] = dtv.getQ().doubleValue() * scale;
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132 vs[1][idx] = dtv.getW().doubleValue() * scale;
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133 ++idx;
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134 }
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135
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136 values.put(gaugeName, vs);
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137 }
311
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138
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139 return values;
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140 }
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141 }
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142 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org