Mercurial > dive4elements > river

annotate artifacts/src/main/java/org/dive4elements/river/artifacts/states/MinMaxState.java @ 6693:88bb0c794833

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issue1391: Enable GaugeDischarge artifact to directly load a table by its ID This allows us to use the GaugeDischargeArtifact for any discharge tables that we have in our database. The name of the created facet is taken from the ids string as is also usual in the WMS artifacts.
author Andre Heinecke <aheinecke@intevation.de>
date Mon, 29 Jul 2013 12:19:57 +0200
parents af13ceeba52a
children e4606eae8ea5
rev   line source
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4897a58c8746 River artifacts: Added new copyright headers.
Sascha L. Teichmann <teichmann@intevation.de>
parents: 5838
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1 /* Copyright (C) 2011, 2012, 2013 by Bundesanstalt für Gewässerkunde
4897a58c8746 River artifacts: Added new copyright headers.
Sascha L. Teichmann <teichmann@intevation.de>
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2 * Software engineering by Intevation GmbH
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3 *
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4 * This file is Free Software under the GNU AGPL (>=v3)
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5 * and comes with ABSOLUTELY NO WARRANTY! Check out the
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6 * documentation coming with Dive4Elements River for details.
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7 */
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8
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9 package org.dive4elements.river.artifacts.states;
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10
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11 import org.w3c.dom.Element;
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12
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13 import org.apache.log4j.Logger;
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14
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15 import org.dive4elements.artifacts.Artifact;
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16 import org.dive4elements.artifacts.CallContext;
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17
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18 import org.dive4elements.artifacts.common.ArtifactNamespaceContext;
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19 import org.dive4elements.artifacts.common.utils.XMLUtils.ElementCreator;
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20
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21 import org.dive4elements.artifactdatabase.ProtocolUtils;
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22
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23 import org.dive4elements.river.artifacts.D4EArtifact;
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24
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25
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26 /**
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27 * State that holds minimun and maximum (for validation).
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28 *
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29 * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a>
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30 */
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31 public abstract class MinMaxState extends DefaultState {
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32
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33 private static final Logger logger = Logger.getLogger(MinMaxState.class);
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34
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35 @Override
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36 protected void appendItems(
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37 Artifact artifact,
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38 ElementCreator creator,
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39 String name,
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40 CallContext context,
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41 Element select
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42 ) {
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59ff03ff48f1 River artifacts: Renamed FLYSArtifact(Collection) to D4EArtifact(Collection).
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43 D4EArtifact flys = (D4EArtifact) artifact;
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44
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45 select.setAttributeNS(
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46 ArtifactNamespaceContext.NAMESPACE_URI,
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47 "art:type",
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48 getType());
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49
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50 String[] defMinMax = getDefaults(artifact, name);
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51
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52 Element min = ProtocolUtils.createArtNode(
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53 creator,
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54 "min",
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55 new String[] { "value", "default" },
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56 new String[] { String.valueOf(getLower(flys)), defMinMax[0] });
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57
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58 Element max = ProtocolUtils.createArtNode(
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59 creator,
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60 "max",
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61 new String[] { "value", "default" },
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62 new String[] { String.valueOf(getUpper(flys)), defMinMax[1] });
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63
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64 select.appendChild(min);
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65 select.appendChild(max);
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66 }
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67
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68
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69 /**
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70 * @param cc
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71 * @param name
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72 * @param value
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73 * @param type
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74 *
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75 * @return
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76 */
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77 @Override
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78 protected String getLabelFor(
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79 CallContext cc,
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80 String name,
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81 String value,
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82 String type
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83 ) {
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84 if (type.indexOf("range") > 0) {
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85 String[] minmax = extractRangeAsString(value);
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86
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87 if (minmax != null) {
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88 return minmax[0] + " - " + minmax[1];
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89 }
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90 }
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91
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92 return super.getLabelFor(cc, name, value, type);
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93 }
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94
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95
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96 /**
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97 * Returns a string array with [min,max] from <i>rawValue</i>.
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98 * <i>rawValue</i> should be a string like "1999;2001".
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99 *
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100 * @param rawValue A string with min and max separated by a ';'.
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101 *
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102 * @return the min and max as string array ([min,max]).
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103 */
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104 protected String[] extractRangeAsString(String rawValue) {
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105 return rawValue.split(";");
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106 }
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107
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108
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109 /**
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110 * This method returns the default values for min and max. If the static
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111 * field DefaultState.USE_DEFAULTS is set, the minimum and maximum inserted
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112 * by the user is returned as string. Otherwise, the absolute minimum and
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113 * maximum are returned.
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114 *
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115 * @param artifact The D4EArtifact.
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116 * @param name The name of the parameter.
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117 *
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118 * @return a string array [min,max] that contains the minimum and maximum
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119 * values for the parameter <i>name</i>.
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120 */
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121 protected String[] getDefaults(Artifact artifact, String name) {
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122 if (DefaultState.USE_DEFAULTS) {
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123 String[] tmp = getMinMaxByParameter(artifact, name);
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124
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125 return tmp != null ? tmp : getMinMaxDefaults(artifact, name);
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126 }
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127 else {
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128 return getMinMaxDefaults(artifact, name);
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129 }
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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 * Returns a string array with minimum and maximum inserted by the user as
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135 * [min,max].
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136 *
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137 * @param artifact The D4EArtifact that stores the parameter.
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138 * @param name The name of the parameter for raw min/max value string.
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139 *
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140 * @return a string array [min,max].
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141 */
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142 protected String[] getMinMaxByParameter(Artifact artifact, String name) {
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143 D4EArtifact flys = (D4EArtifact) artifact;
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144 String rawValue = flys.getDataAsString(name);
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145
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146 if (rawValue == null) {
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147 logger.debug("No value for '" + rawValue + "' existing.");
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148 return null;
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149 }
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150
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151 logger.debug("Raw value for '" + name + "' = " + rawValue);
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152
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153 return extractRangeAsString(rawValue);
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154 }
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155
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156
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157 /**
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158 * Returns a string array with absolute minimum and maximum as [min,max].
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159 *
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160 * @param artifact The D4EArtifact (not used in this implementation).
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161 * @param name The parameter name (not used in this implementation).
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162 *
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163 * @return a string array [min,max].
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164 */
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165 protected String[] getMinMaxDefaults(Artifact artifact, String name) {
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166 D4EArtifact flys = (D4EArtifact) artifact;
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167
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168 Object lower = getLower(flys);
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169 Object upper = getUpper(flys);
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170
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171 return new String[] { String.valueOf(lower), String.valueOf(upper) };
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172 }
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173
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174
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175 protected abstract Object getLower(D4EArtifact flys);
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176
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177 protected abstract Object getUpper(D4EArtifact flys);
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178
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179 protected abstract String getType();
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180 }
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181 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 :
http://dive4elements.wald.intevation.org