Mercurial > dive4elements > river

annotate artifacts/src/main/java/org/dive4elements/river/artifacts/states/MinMaxState.java @ 5838:5aa05a7a34b7

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Rename modules to more fitting names.
author Sascha L. Teichmann <teichmann@intevation.de>
date Thu, 25 Apr 2013 15:23:37 +0200
parents flys-artifacts/src/main/java/org/dive4elements/river/artifacts/states/MinMaxState.java@bd047b71ab37
children 4897a58c8746
rev   line source
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1 package org.dive4elements.river.artifacts.states;
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2
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3 import org.w3c.dom.Element;
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4
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5 import org.apache.log4j.Logger;
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6
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7 import org.dive4elements.artifacts.Artifact;
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8 import org.dive4elements.artifacts.CallContext;
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9
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10 import org.dive4elements.artifacts.common.ArtifactNamespaceContext;
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11 import org.dive4elements.artifacts.common.utils.XMLUtils.ElementCreator;
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12
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13 import org.dive4elements.artifactdatabase.ProtocolUtils;
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14
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15 import org.dive4elements.river.artifacts.FLYSArtifact;
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16
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17
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18 /**
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19 * State that holds minimun and maximum (for validation).
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20 *
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21 * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a>
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22 */
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23 public abstract class MinMaxState extends DefaultState {
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24
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25 private static final Logger logger = Logger.getLogger(MinMaxState.class);
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26
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27 @Override
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28 protected void appendItems(
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29 Artifact artifact,
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30 ElementCreator creator,
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31 String name,
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32 CallContext context,
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33 Element select
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34 ) {
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35 FLYSArtifact flys = (FLYSArtifact) artifact;
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36
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37 select.setAttributeNS(
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38 ArtifactNamespaceContext.NAMESPACE_URI,
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39 "art:type",
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40 getType());
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41
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42 String[] defMinMax = getDefaults(artifact, name);
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43
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44 Element min = ProtocolUtils.createArtNode(
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45 creator,
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46 "min",
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47 new String[] { "value", "default" },
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48 new String[] { String.valueOf(getLower(flys)), defMinMax[0] });
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49
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50 Element max = ProtocolUtils.createArtNode(
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51 creator,
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52 "max",
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53 new String[] { "value", "default" },
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54 new String[] { String.valueOf(getUpper(flys)), defMinMax[1] });
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55
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56 select.appendChild(min);
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57 select.appendChild(max);
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58 }
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59
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60
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61 /**
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62 * @param cc
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63 * @param name
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64 * @param value
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65 * @param type
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66 *
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67 * @return
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68 */
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69 @Override
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70 protected String getLabelFor(
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71 CallContext cc,
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72 String name,
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73 String value,
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74 String type
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75 ) {
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76 if (type.indexOf("range") > 0) {
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77 String[] minmax = extractRangeAsString(value);
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78
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79 if (minmax != null) {
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80 return minmax[0] + " - " + minmax[1];
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81 }
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82 }
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83
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84 return super.getLabelFor(cc, name, value, type);
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85 }
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86
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87
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88 /**
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89 * Returns a string array with [min,max] from <i>rawValue</i>.
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90 * <i>rawValue</i> should be a string like "1999;2001".
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91 *
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92 * @param rawValue A string with min and max separated by a ';'.
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93 *
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94 * @return the min and max as string array ([min,max]).
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95 */
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96 protected String[] extractRangeAsString(String rawValue) {
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97 return rawValue.split(";");
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98 }
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99
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100
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101 /**
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102 * This method returns the default values for min and max. If the static
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103 * field DefaultState.USE_DEFAULTS is set, the minimum and maximum inserted
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104 * by the user is returned as string. Otherwise, the absolute minimum and
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105 * maximum are returned.
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106 *
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107 * @param artifact The FLYSArtifact.
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108 * @param name The name of the parameter.
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109 *
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110 * @return a string array [min,max] that contains the minimum and maximum
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111 * values for the parameter <i>name</i>.
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112 */
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113 protected String[] getDefaults(Artifact artifact, String name) {
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114 if (DefaultState.USE_DEFAULTS) {
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115 String[] tmp = getMinMaxByParameter(artifact, name);
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116
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117 return tmp != null ? tmp : getMinMaxDefaults(artifact, name);
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118 }
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119 else {
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120 return getMinMaxDefaults(artifact, name);
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121 }
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122 }
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123
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124
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125 /**
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126 * Returns a string array with minimum and maximum inserted by the user as
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127 * [min,max].
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128 *
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129 * @param artifact The FLYSArtifact that stores the parameter.
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130 * @param name The name of the parameter for raw min/max value string.
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131 *
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132 * @return a string array [min,max].
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133 */
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134 protected String[] getMinMaxByParameter(Artifact artifact, String name) {
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135 FLYSArtifact flys = (FLYSArtifact) artifact;
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136 String rawValue = flys.getDataAsString(name);
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137
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138 if (rawValue == null) {
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139 logger.debug("No value for '" + rawValue + "' existing.");
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140 return null;
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141 }
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142
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143 logger.debug("Raw value for '" + name + "' = " + rawValue);
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144
2205
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145 return extractRangeAsString(rawValue);
2202
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146 }
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147
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148
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149 /**
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150 * Returns a string array with absolute minimum and maximum as [min,max].
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151 *
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152 * @param artifact The FLYSArtifact (not used in this implementation).
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153 * @param name The parameter name (not used in this implementation).
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154 *
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155 * @return a string array [min,max].
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156 */
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157 protected String[] getMinMaxDefaults(Artifact artifact, String name) {
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158 FLYSArtifact flys = (FLYSArtifact) artifact;
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159
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160 Object lower = getLower(flys);
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161 Object upper = getUpper(flys);
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162
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163 return new String[] { String.valueOf(lower), String.valueOf(upper) };
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164 }
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165
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166
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167 protected abstract Object getLower(FLYSArtifact flys);
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168
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169 protected abstract Object getUpper(FLYSArtifact flys);
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170
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171 protected abstract String getType();
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172 }
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173 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 :
http://dive4elements.wald.intevation.org