Mercurial > dive4elements > river

annotate flys-artifacts/src/main/java/de/intevation/flys/artifacts/states/MinMaxState.java @ 2202:d1660809daab

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Added default values for min and max items prepared by MinMaxState. flys-artifacts/trunk@3821 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Ingo Weinzierl <ingo.weinzierl@intevation.de>
date Mon, 30 Jan 2012 10:08:25 +0000
parents 2792d2617be9
children a22e0cb6eace
rev   line source
2190
2792d2617be9 Introduced an abstract MinMaxState and a concrete class IntRangeState to add min/max value pairs.
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1 package de.intevation.flys.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 de.intevation.artifacts.Artifact;
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8 import de.intevation.artifacts.CallContext;
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9
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10 import de.intevation.artifacts.common.ArtifactNamespaceContext;
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11 import de.intevation.artifacts.common.utils.XMLUtils.ElementCreator;
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12
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13 import de.intevation.artifactdatabase.ProtocolUtils;
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14
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15 import de.intevation.flys.artifacts.FLYSArtifact;
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16
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17
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18 /**
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19 * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a>
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20 */
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21 public abstract class MinMaxState extends DefaultState {
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22
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23 private static final Logger logger = Logger.getLogger(MinMaxState.class);
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24
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25 @Override
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26 protected void appendItems(
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27 Artifact artifact,
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28 ElementCreator creator,
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29 String name,
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30 CallContext context,
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31 Element select
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32 ) {
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33 FLYSArtifact flys = (FLYSArtifact) artifact;
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34
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35 select.setAttributeNS(
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36 ArtifactNamespaceContext.NAMESPACE_URI,
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37 "art:type",
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38 getType());
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39
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40 String[] defMinMax = getDefaults(artifact, name);
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41
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42 Element min = ProtocolUtils.createArtNode(
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43 creator,
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44 "min",
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45 new String[] { "value", "default" },
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46 new String[] { String.valueOf(getLower(flys)), defMinMax[0] });
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47
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48 Element max = ProtocolUtils.createArtNode(
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49 creator,
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50 "max",
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51 new String[] { "value", "default" },
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52 new String[] { String.valueOf(getUpper(flys)), defMinMax[1] });
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53
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54 select.appendChild(min);
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55 select.appendChild(max);
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56 }
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57
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58
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59 /**
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60 * This method returns the default values for min and max. If the static
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61 * field DefaultState.USE_DEFAULTS is set, the minimum and maximum inserted
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62 * by the user is returned as string. Otherwise, the absolute minimum and
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63 * maximum are returned.
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64 *
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65 * @param artifact The FLYSArtifact.
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66 * @param name The name of the parameter.
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67 *
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68 * @return a string array [min,max] that contains the minimum and maximum
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69 * values for the parameter <i>name</i>.
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70 */
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71 protected String[] getDefaults(Artifact artifact, String name) {
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72 if (DefaultState.USE_DEFAULTS) {
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73 String[] tmp = getMinMaxByParameter(artifact, name);
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74
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75 return tmp != null ? tmp : getMinMaxDefaults(artifact, name);
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76 }
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77 else {
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78 return getMinMaxDefaults(artifact, name);
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79 }
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80 }
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81
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82
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83 /**
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84 * Returns a string array with minimum and maximum inserted by the user as
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85 * [min,max].
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86 *
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87 * @param artifact The FLYSArtifact that stores the parameter.
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88 * @param name The name of the parameter for raw min/max value string.
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89 *
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90 * @return a string array [min,max].
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91 */
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92 protected String[] getMinMaxByParameter(Artifact artifact, String name) {
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93 FLYSArtifact flys = (FLYSArtifact) artifact;
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94 String rawValue = flys.getDataAsString(name);
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95
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96 if (rawValue == null) {
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97 logger.debug("No value for '" + rawValue + "' existing.");
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98 return null;
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99 }
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100
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101 logger.debug("Raw value for '" + name + "' = " + rawValue);
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102
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103 return rawValue.split(";");
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104 }
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105
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106
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107 /**
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108 * Returns a string array with absolute minimum and maximum as [min,max].
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109 *
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110 * @param artifact The FLYSArtifact (not used in this implementation).
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111 * @param name The parameter name (not used in this implementation).
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112 *
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113 * @return a string array [min,max].
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114 */
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115 protected String[] getMinMaxDefaults(Artifact artifact, String name) {
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116 FLYSArtifact flys = (FLYSArtifact) artifact;
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117
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118 Object lower = getLower(flys);
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119 Object upper = getUpper(flys);
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120
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121 return new String[] { String.valueOf(lower), String.valueOf(upper) };
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122 }
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123
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124
2190
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125 protected abstract Object getLower(FLYSArtifact flys);
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126
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127 protected abstract Object getUpper(FLYSArtifact flys);
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128
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129 protected abstract String getType();
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130 }
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131 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 :
http://dive4elements.wald.intevation.org