Mercurial > dive4elements > river

annotate artifacts/src/main/java/org/dive4elements/river/themes/ThemeMapping.java @ 6931:2c8e5bad8699

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Fix NPE in case the artifact does not even have the master attribute Started happening with the new other.wqkms.w attribute condition and official lines in waterlevel calculations
author Andre Heinecke <aheinecke@intevation.de>
date Tue, 27 Aug 2013 18:35:51 +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>
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1 /* Copyright (C) 2011, 2012, 2013 by Bundesanstalt für Gewässerkunde
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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.themes;
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11 import org.apache.log4j.Logger;
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12
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13 import java.io.Serializable;
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14 import java.util.regex.Matcher;
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15 import java.util.regex.Pattern;
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16
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17 import org.dive4elements.river.artifacts.D4EArtifact;
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18
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19 /**
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20 * Represents mapping to a theme (including conditions).
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21 */
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22 public class ThemeMapping implements Serializable {
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23
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24 /** The logger that is used in this class */
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25 private static Logger logger = Logger.getLogger(ThemeMapping.class);
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26
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27 /** Name from which to map. */
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28 protected String from;
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29
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30 /** Name to which to map. */
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31 protected String to;
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32
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33 /** Given pattern (held against facet description). */
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34 protected String patternStr;
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35
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36 /** Given masterAttr pattern (held against masterartifacts attributes). */
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37 protected String masterAttr;
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38
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39 /** Given output for which mapping is valid. */
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40 protected String output;
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41
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42 protected Pattern pattern;
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43
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44
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45 public ThemeMapping(String from, String to) {
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46 this(from, to, null, null, null);
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47 }
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48
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49
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50 public ThemeMapping(
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51 String from,
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52 String to,
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53 String patternStr,
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54 String masterAttr,
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55 String output)
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56 {
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57 this.from = from;
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58 this.to = to;
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59 this.patternStr = patternStr;
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60 this.masterAttr = masterAttr;
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61 this.output = output;
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62
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63 this.pattern = Pattern.compile(patternStr);
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64 }
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65
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66
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67 public String getFrom() {
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68 return from;
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69 }
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70
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72 /**
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73 * Get name of theme that is mapped to.
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74 */
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75 public String getTo() {
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76 return to;
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77 }
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78
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79
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80 /**
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81 * Get pattern.
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82 */
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83 public String getPatternStr() {
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84 return patternStr;
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85 }
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88 /**
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89 * Match regular expression against text.
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90 *
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91 * @param text string to be matched against.
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92 * @return true if pattern matches text or pattern is empty.
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93 */
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94 public boolean applyPattern(String text) {
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95 if (patternStr == null || patternStr.length() == 0) {
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96 return true;
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97 }
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98 Matcher m = pattern.matcher(text);
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99
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100 if (m.matches()) {
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101 logger.debug("Pattern matches: " + text);
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102 return true;
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103 }
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104 else {
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105 logger.debug(
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106 "Pattern '"+ text + "' does not match: " + this.patternStr);
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107 return false;
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108 }
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109 }
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112 /**
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parents: 1747
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113 * Inspects Artifacts data given the masterAttr-condition.
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Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 1747
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114 *
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Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 1747
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115 * The only condition implemented so far is 'key==value', for which
6ed439ff61bf Changed theme-mapping mechanism to include further condition (on master-artifacts attributes), added point themes for longitudinal.ws for calculations at locations.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 1747
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116 * the Artifacts data with name "key" has to be of value "value" in order
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Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 1747
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117 * for true to be returned.
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Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 1747
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118 *
6ed439ff61bf Changed theme-mapping mechanism to include further condition (on master-artifacts attributes), added point themes for longitudinal.ws for calculations at locations.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 1747
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119 * @param artifact Artifact of which to inspect data.
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parents: 1747
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120 * @return true if no condition is specified or condition is met.
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parents: 1747
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121 */
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59ff03ff48f1 River artifacts: Renamed FLYSArtifact(Collection) to D4EArtifact(Collection).
Sascha L. Teichmann <teichmann@intevation.de>
parents: 5863
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122 public boolean masterAttrMatches(D4EArtifact artifact) {
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parents: 1828
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123 if (masterAttr == null || masterAttr.length() == 0) {
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parents: 1747
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124 return true;
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parents: 1747
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125 }
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parents: 1747
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126
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parents: 1747
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127 // Operator split.
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parents: 1747
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128 String[] parts = masterAttr.split("==");
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parents: 1747
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129 if (parts.length != 2) {
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parents: 1747
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130 logger.error("ThemeMapping could not parse masterAttr.-condition:_"
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parents: 1747
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131 + masterAttr + "_");
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parents: 1747
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132 return false;
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parents: 1747
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133 }
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parents: 1747
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134
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Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 1747
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135 // Test.
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2c8e5bad8699 Fix NPE in case the artifact does not even have the master attribute
Andre Heinecke <aheinecke@intevation.de>
parents: 5994
diff changeset
136 String artData = artifact.getDataAsString(parts[0]);
2c8e5bad8699 Fix NPE in case the artifact does not even have the master attribute
Andre Heinecke <aheinecke@intevation.de>
parents: 5994
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137 if (artData != null && artData.equals(parts[1])) {
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Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 3453
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138 logger.debug("Matches master Attribute.");
8e713e9bb4d7 Defined colors for bed quality themes.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 3453
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139 return true;
8e713e9bb4d7 Defined colors for bed quality themes.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 3453
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140 }
8e713e9bb4d7 Defined colors for bed quality themes.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 3453
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141 else {
8e713e9bb4d7 Defined colors for bed quality themes.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 3453
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142 logger.debug("Does not match master Attribute.");
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Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 3453
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143 return false;
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parents: 3453
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144 }
1822
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parents: 1747
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145 }
1828
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Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 1822
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146
9562ca537143 Added new optional condition for theme-mappings: the output name.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 1822
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147
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Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 1822
diff changeset
148 /**
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Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 1822
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149 * Returns true if no output condition exists, or the condition is met
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Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 1822
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150 * in parameter output.
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Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 1822
diff changeset
151 */
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Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 1822
diff changeset
152 public boolean outputMatches(String output) {
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parents: 1828
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153 if (this.output == null || this.output.length() == 0) {
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Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 1822
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154 return true;
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Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 1822
diff changeset
155 }
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Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 1822
diff changeset
156
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parents: 3453
diff changeset
157 if (this.output.equals(output)) {
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Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 3453
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158 logger.debug("Output matches this mapping: " + output);
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parents: 3453
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159 return true;
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parents: 3453
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160 }
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parents: 3453
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161 else {
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parents: 3453
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162 logger.debug("Output '"+ output +"' does not match: "+ this.output);
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parents: 3453
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163 return false;
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parents: 3453
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164 }
1828
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Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 1822
diff changeset
165 }
1747
d2a17e990c70 Improved the Themes: we now support special themes for facets which need to match a given pattern string.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
166 }
d2a17e990c70 Improved the Themes: we now support special themes for facets which need to match a given pattern string.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
167 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org