Mercurial > dive4elements > gnv-client

annotate gnv-artifacts/src/main/java/de/intevation/gnv/state/MinMaxState.java @ 846:8b6ef091d38c

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It is possible to draw VerticalProfileCharts with just one single data point (issue229). gnv-artifacts/trunk@962 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Ingo Weinzierl <ingo.weinzierl@intevation.de>
date Wed, 21 Apr 2010 08:46:23 +0000
parents 499cfbbb61bc
children 41630b457b6a
rev   line source
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1 package de.intevation.gnv.state;
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2
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3 import java.util.ArrayList;
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4 import java.util.Collection;
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5 import java.util.Date;
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6 import java.util.GregorianCalendar;
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7 import java.util.Iterator;
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8 import java.util.List;
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9
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10 import org.apache.log4j.Logger;
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11 import org.w3c.dom.Document;
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12 import org.w3c.dom.Element;
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13 import org.w3c.dom.Node;
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14
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15 import de.intevation.artifactdatabase.XMLUtils;
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16 import de.intevation.artifacts.CallContext;
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17 import de.intevation.artifacts.CallMeta;
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18 import de.intevation.gnv.artifacts.ressource.RessourceFactory;
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19 import de.intevation.gnv.geobackend.base.Result;
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20 import de.intevation.gnv.geobackend.util.DateUtils;
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21 import de.intevation.gnv.state.describedata.DefaultMinMaxDescribeData;
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22 import de.intevation.gnv.state.describedata.DescribeData;
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23 import de.intevation.gnv.state.describedata.MinMaxDescribeData;
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24 import de.intevation.gnv.state.exception.StateException;
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25 import de.intevation.gnv.utils.InputValidator;
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26
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27 /**
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28 * This state handles input of a min and max value and validates the user input.
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29 * The min value needs to be equal or smaller than the max value, otherwise the
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30 * input results in an error.
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31 *
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32 * @author <a href="mailto:tim.englich@intevation.de">Tim Englich</a>
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33 * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a>
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34 */
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35 public class MinMaxState extends StateBase {
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36
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37 /**
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38 * the logger, used to log exceptions and additonaly information
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39 */
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40 private static Logger log = Logger.getLogger(MinMaxState.class);
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41
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42 /**
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43 * Constructor
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44 */
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45 public MinMaxState() {
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46 super();
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47 }
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48
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49 /**
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50 * The objects returned by the database are searched for two fields with
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51 * 'MIN' and 'MAX' as names. These objects are stored and used to be
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52 * displayed in the gui to give the user an orientation of the range he is
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53 * able to insert.
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54 */
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55 @Override
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56 protected List<Object> purifyResult(
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57 Collection<Result> result, String uuid)
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58 {
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59 List<Object> describeData = new ArrayList<Object>();
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60
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61 if (result != null && result.size() == 1) {
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62 Result value = result.iterator().next();
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63 DescribeData values = new DefaultMinMaxDescribeData(
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64 dataName,
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65 value.getObject("MIN"),
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66 value.getObject("MAX"),
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67 getID());
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68 describeData.add(values);
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69 } else {
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70 log.warn("Result cannot be handled as MinMax Resultset");
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71 }
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72
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73 return describeData;
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74 }
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75
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76
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77 @Override
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78 public Document feed(
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79 CallContext context,
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80 Collection<InputData> inputData,
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81 String uuid)
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82 throws StateException {
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83 RessourceFactory resFactory = RessourceFactory.getInstance();
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84
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85 if (inputData == null) {
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86 String msg = "No input data given.";
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87 log.warn(msg);
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88 return feedFailure(msg);
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89 }
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90
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91 InputValidator iv = new InputValidator();
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92 Iterator iter = inputData.iterator();
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93
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94 Object min = null;
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95 Object max = null;
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96
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97 while (iter.hasNext()) {
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98 InputData tmp = (InputData) iter.next();
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99 InputValue meta = inputValues.get(tmp.getName());
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100 String type = meta.getType();
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101 String value = tmp.getValue();
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102 String name = tmp.getName();
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103
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104 if (meta == null) {
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105 String msg = "Input data not expected here. Data will be ignored.";
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106 log.warn(msg);
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107 return feedFailure(msg);
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108 }
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109
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110 boolean valid = InputValidator.isInputValid(value, type);
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111 if (!valid) {
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112 String msg = "Input is not valid for this state.";
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113 log.error(msg);
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114 return feedFailure(msg);
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115 }
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116
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117 if (name.equals(MINVALUEFIELDNAME)) {
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118 min = value;
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119 }
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120
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121 if (name.equals(MAXVALUEFIELDNAME)) {
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122 max = value;
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123 }
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124
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125 if (min != null && max != null) {
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126 if (!InputValidator.isInputValid((String) min, (String) max, type)) {
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127 String msg = "Input is not valid for this state.";
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128 log.error(msg);
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129 return feedFailure(msg);
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130 }
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131 }
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132 }
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133
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134
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135
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136 DescribeData values = new DefaultMinMaxDescribeData(
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137 dataName, min, max, getID());
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138
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139 this.inputData.put(dataName, new DefaultInputData(dataName, values));
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140
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141 return feedSuccess();
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142 }
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143
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144
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145 @Override
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146 protected void appendToStaticNode(
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147 XMLUtils.ElementCreator artCreator,
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148 XMLUtils.ElementCreator creator,
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149 Document document,
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150 Node staticNode,
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151 CallMeta callMeta
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152 ) {
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153 InputData data = inputData.get(dataName);
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154
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155 if (data == null) {
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156 return;
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157 }
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158
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159 MinMaxDescribeData minMax = (MinMaxDescribeData) data.getObject();
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160
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161 Object min = minMax.getMinValue();
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162 Object max = minMax.getMaxValue();
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163 if (min instanceof GregorianCalendar) {
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164 Date d = ((GregorianCalendar) min).getTime();
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165 min = DateUtils.getPatternedDateAmer(d);
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166 }
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167
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168 if (max instanceof GregorianCalendar) {
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169 Date d = ((GregorianCalendar) max).getTime();
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170 max = DateUtils.getPatternedDateAmer(d);
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171 }
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172
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173 Element groupNode = creator.create("group");
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174 artCreator.addAttr(groupNode, "state", minMax.getState(), true);
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175
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176 creator.addAttr(groupNode, "ref", minMax.getName());
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177 Element groupNodeLableNode = creator.create("label");
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178 groupNodeLableNode.setTextContent(RessourceFactory
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179 .getInstance().getRessource(
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180 callMeta.getLanguages(),
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181 minMax.getName(),
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182 minMax.getName()));
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183 groupNode.appendChild(groupNodeLableNode);
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184
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185 Element inputMinNode = creator.create("input");
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186 creator.addAttr(inputMinNode, "ref", MINVALUEFIELDNAME);
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187 Element inputMinLableNode = creator.create("label");
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188 inputMinLableNode.setTextContent(RessourceFactory
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189 .getInstance().getRessource(
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190 callMeta.getLanguages(), MINVALUEFIELDNAME,
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191 MINVALUEFIELDNAME));
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192 inputMinNode.appendChild(inputMinLableNode);
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193
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194 Element inputMinValueNode = creator.create("value");
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195 inputMinValueNode.setTextContent(min.toString());
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196 inputMinNode.appendChild(inputMinValueNode);
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197
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198 Element inputMaxNode = creator.create("input");
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199 creator.addAttr(inputMaxNode, "ref", MAXVALUEFIELDNAME);
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200 Element inputMaxLableNode = creator.create("label");
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201 inputMaxLableNode.setTextContent(RessourceFactory
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202 .getInstance().getRessource(
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203 callMeta.getLanguages(), MAXVALUEFIELDNAME,
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204 MAXVALUEFIELDNAME));
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205 inputMaxNode.appendChild(inputMaxLableNode);
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206
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207 Element inputMaxValueNode = creator.create("value");
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Ingo Weinzierl <ingo.weinzierl@intevation.de>
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208 inputMaxValueNode.setTextContent(max.toString());
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209 inputMaxNode.appendChild(inputMaxValueNode);
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210
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211 groupNode.appendChild(inputMinNode);
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212 groupNode.appendChild(inputMaxNode);
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213
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214 staticNode.appendChild(groupNode);
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Ingo Weinzierl <ingo.weinzierl@intevation.de>
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215 }
335
e964a3d8f7bc Some Refactoring work done.
Tim Englich <tim.englich@intevation.de>
parents:
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216 }
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a5526908f92f Added javadoc in state package.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
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217 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org