Mercurial > dive4elements > river

annotate flys-artifacts/src/main/java/de/intevation/flys/artifacts/services/GaugeOverviewInfoService.java @ 3879:ac49675f9335

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Add the gauge station to the GaugeOverviewInfoService xml response flys-artifacts/trunk@5516 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Bjoern Ricks <bjoern.ricks@intevation.de>
date Wed, 19 Sep 2012 08:45:51 +0000
parents b3fdb5a12613
children cfed96c53e9a
rev   line source
3739
0edc05642fa4 Add new artifact service for the gauge overview
Bjoern Ricks <bjoern.ricks@intevation.de>
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1 package de.intevation.flys.artifacts.services;
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2
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3 import java.math.BigDecimal;
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4 import java.util.List;
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5
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6 import org.apache.log4j.Logger;
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7
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8 import org.w3c.dom.Document;
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9 import org.w3c.dom.Element;
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10
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11 import de.intevation.artifacts.CallMeta;
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12 import de.intevation.artifacts.GlobalContext;
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13 import de.intevation.artifacts.common.ArtifactNamespaceContext;
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14 import de.intevation.artifacts.common.utils.XMLUtils;
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15
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16 import de.intevation.flys.artifacts.model.RiverFactory;
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17 import de.intevation.flys.model.Gauge;
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18 import de.intevation.flys.model.MinMaxWQ;
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19 import de.intevation.flys.model.Range;
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20 import de.intevation.flys.model.River;
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21
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22 /**
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23 * @author <a href="mailto:bjoern.ricks@intevation.de">Björn Ricks</a>
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24 */
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25 public class GaugeOverviewInfoService extends FLYSService {
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26
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27 private static final Logger logger = Logger.getLogger(
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28 GaugeOverviewInfoService.class);
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29
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30 public static final String RIVER_XPATH = "/art:river/text()";
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31
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32 @Override
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33 public Document doProcess(
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34 Document data,
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35 GlobalContext globalContext,
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36 CallMeta callMeta
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37 ) {
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38 logger.debug("GaugeOverviewInfoService.process");
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39
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40 String riverstr = XMLUtils.xpathString(
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41 data, RIVER_XPATH, ArtifactNamespaceContext.INSTANCE);
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42
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43 River river = RiverFactory.getRiver(riverstr);
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44
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45 Document result = XMLUtils.newDocument();
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46
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47 if (river == null) {
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48 logger.warn("No river with name " + riverstr + " found.");
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49 return result;
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50 }
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51
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52 XMLUtils.ElementCreator ec = new XMLUtils.ElementCreator(
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53 result,
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54 ArtifactNamespaceContext.NAMESPACE_URI,
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55 ArtifactNamespaceContext.NAMESPACE_PREFIX);
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56
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57 Element go = ec.create("gauge-info");
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58
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59 double[] minmax = river.determineMinMaxDistance();
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60 double[] minmaxq = river.determineMinMaxQ();
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61
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62 Element r = ec.create("river");
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63 ec.addAttr(r, "name", river.getName(), true);
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64 ec.addAttr(r, "start", Double.toString(minmax[0]), true);
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65 ec.addAttr(r, "end", Double.toString(minmax[1]), true);
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66 ec.addAttr(r, "wstunit", river.getWstUnit().getName(), true);
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67 ec.addAttr(r, "kmup", Boolean.toString(river.getKmUp()), true);
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68 ec.addAttr(r, "minq", Double.toString(minmaxq[0]), true);
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69 ec.addAttr(r, "maxq", Double.toString(minmaxq[1]), true);
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70
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71 Element egs = ec.create("gauges");
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72
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73 List<Gauge> gauges = river.getGauges();
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74
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75 if (logger.isDebugEnabled()) {
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76 logger.debug("Loaded gauges: " + gauges);
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77 }
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78
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79 for (Gauge gauge: river.getGauges()) {
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80 Element eg = ec.create("gauge");
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81
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82 String name = gauge.getName();
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83 if (name != null) {
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84 ec.addAttr(eg, "name", gauge.getName(), true);
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85 }
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86
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87 String aeo = getGaugeValue(gauge.getAeo());
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88 if (aeo != null) {
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89 ec.addAttr(eg, "aeo", aeo, true);
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90 }
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91
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92 String datum = getGaugeValue(gauge.getDatum());
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93 if (datum != null) {
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94 ec.addAttr(eg, "datum", datum, true);
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95 }
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96
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97 Range range = gauge.getRange();
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98 if (range != null) {
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99 BigDecimal a = range.getA();
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100 if (a != null) {
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101 double min = a.doubleValue();
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102 ec.addAttr(eg, "start", Double.toString(min), true);
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103 }
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104
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105 BigDecimal b = range.getB();
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106 if (b != null) {
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107 double max = range.getB().doubleValue();
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108 ec.addAttr(eg, "end", Double.toString(max), true);
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109 }
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110 }
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111 MinMaxWQ minmaxwq = gauge.fetchMaxMinWQ();
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112 String minw = getGaugeValue(minmaxwq.getMinW());
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113 String maxw = getGaugeValue(minmaxwq.getMaxW());
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114 String minq = getGaugeValue(minmaxwq.getMinQ());
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115 String maxq = getGaugeValue(minmaxwq.getMaxQ());
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116
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117 if (minw != null) {
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118 ec.addAttr(eg, "minw", minw, true);
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119 }
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120 if (maxw != null) {
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121 ec.addAttr(eg, "maxw", maxw, true);
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122 }
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123 if (minq != null) {
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124 ec.addAttr(eg, "minq", minq, true);
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125 }
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126 if (maxq != null) {
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127 ec.addAttr(eg, "maxq", maxq, true);
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128 }
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129
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130 String station = getGaugeValue(gauge.getStation());
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131 if (station != null) {
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132 ec.addAttr(eg, "station", station, true);
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133 }
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134
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135 egs.appendChild(eg);
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136 }
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137
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138 go.appendChild(r);
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139 go.appendChild(egs);
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140 result.appendChild(go);
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141
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142 return result;
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143 }
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144
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Bjoern Ricks <bjoern.ricks@intevation.de>
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145 /**
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146 * Returns a Double from a BigDecimal value or null if value is null
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147 */
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148 private static String getGaugeValue(BigDecimal value) {
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149 return value != null
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150 ? Double.toString(value.doubleValue())
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151 : "";
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152 }
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153 }
http://dive4elements.wald.intevation.org