Mercurial > dive4elements > river
annotate artifacts/src/main/java/org/dive4elements/river/exports/DiagramAttributes.java @ 7049:165ea04b1545 generator-refactoring
Added alignment rules for diagrams.
author | Sascha L. Teichmann <teichmann@intevation.de> |
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date | Thu, 19 Sep 2013 11:08:43 +0200 |
parents | a43137dfdcac |
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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.exports; |
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10 |
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11 import java.util.ArrayList; |
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12 import java.util.List; |
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13 |
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14 import org.w3c.dom.Element; |
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15 import org.w3c.dom.NodeList; |
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16 |
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17 import org.dive4elements.river.exports.process.Processor; |
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18 |
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19 import org.apache.log4j.Logger; |
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20 |
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21 import org.dive4elements.artifacts.CallContext; |
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22 |
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23 import org.dive4elements.river.artifacts.resources.Resources; |
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24 import org.dive4elements.river.artifacts.D4EArtifact; |
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25 |
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26 public class DiagramAttributes |
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27 { |
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28 private static Logger log = Logger.getLogger(DiagramAttributes.class); |
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29 |
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30 public static class AxisAttributes { |
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31 private String name; |
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32 private boolean isLeftAlign; |
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33 private boolean forceAlign; |
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34 |
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35 public AxisAttributes() { |
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36 } |
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37 |
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38 public AxisAttributes( |
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39 String name, |
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40 boolean isLeftAlign, |
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41 boolean forceAlign |
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42 ) { |
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43 this.name = name; |
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44 this.isLeftAlign = isLeftAlign; |
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45 this.forceAlign = forceAlign; |
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46 } |
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47 |
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48 public String getName() { |
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49 return name; |
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50 } |
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51 |
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52 public boolean isLeftAlign() { |
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53 return isLeftAlign; |
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54 } |
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55 |
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56 public boolean forceAlign() { |
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57 return forceAlign; |
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58 } |
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59 } // class AxisAttributes |
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60 |
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61 public static class AxisProcessor { |
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62 private Processor processor; |
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63 private String axisName; |
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64 |
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65 public AxisProcessor() { |
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66 } |
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67 |
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68 public AxisProcessor(Processor processor, String axisName) { |
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69 this.processor = processor; |
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70 this.axisName = axisName; |
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71 } |
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72 |
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73 public Processor getProcessor() { |
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74 return processor; |
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75 } |
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76 |
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78 return axisName; |
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79 } |
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80 } // class AxisProcessor |
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81 |
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82 public static class Argument { |
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83 private String expression; |
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84 private String type; |
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85 |
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86 public Argument() { |
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87 } |
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88 |
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89 public Argument(String expression, String type) { |
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90 this.expression = expression; |
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91 this.type = type; |
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92 } |
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93 |
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94 public Object evaluate(D4EArtifact artifact, CallContext context) { |
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95 if (expression.startsWith("artifact.")) { |
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96 String value = artifact.getDataAsString( |
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97 expression.substring("artifact.".length())); |
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98 return convert(value); |
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99 } |
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100 if (expression.startsWith("context.")) { |
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101 return context.getContextValue( |
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102 expression.substring("context.".length())); |
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103 } |
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104 return expression; |
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105 } |
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106 |
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107 private Object convert(String value) { |
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108 if (value == null || type == null) { |
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109 return value; |
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110 } |
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111 if ("double".equals(type)) { |
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112 return Double.valueOf(value); |
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113 } |
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114 if ("int".equals(type)) { |
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115 return Integer.valueOf(value); |
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116 } |
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117 // TODO: more types |
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118 return value; |
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119 } |
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120 } // class Argument |
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121 |
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122 public static class Title { |
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123 |
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124 private String key; |
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125 private String def; |
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126 private List<Argument> arguments; |
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127 |
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128 public Title() { |
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129 arguments = new ArrayList<Argument>(5); |
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130 } |
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131 |
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132 public Title(String key) { |
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133 this(key, key); |
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134 } |
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135 |
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136 public Title(String key, String def) { |
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137 this(); |
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138 this.key = key; |
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139 this.def = def; |
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140 } |
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141 |
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142 public String getKey() { |
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143 return key; |
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144 } |
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145 |
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146 public void addArgument(Argument argument) { |
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147 arguments.add(argument); |
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148 } |
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149 |
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150 public String evalute(D4EArtifact artifact, CallContext context) { |
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151 if (key == null || key.isEmpty()) { |
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152 return def; |
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153 } |
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154 Object [] args = new Object[arguments.size()]; |
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155 for (int i = 0; i < args.length; ++i) { |
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156 args[i] = arguments.get(i).evaluate(artifact, context); |
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157 } |
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158 return Resources.getMsg(context.getMeta(), key, def, args); |
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159 } |
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160 } // class Title |
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161 |
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162 private List<AxisAttributes> axesAttrs; |
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163 private List<AxisProcessor> axesProcessors; |
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164 |
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165 private Title title; |
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166 private Title subtitle; |
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167 |
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168 public DiagramAttributes() { |
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169 axesAttrs = new ArrayList<AxisAttributes>(5); |
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170 axesProcessors = new ArrayList<AxisProcessor>(5); |
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171 } |
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172 |
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173 public DiagramAttributes(Element config) { |
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174 this(); |
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175 parseAxis(config); |
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176 parseProcessors(config); |
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177 parseTitle(config); |
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178 parseSubtitle(config); |
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179 } |
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180 |
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181 private void parseAxis(Element config) { |
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182 NodeList axisNodes = config.getElementsByTagName("axis"); |
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183 |
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184 for (int i = 0, N = axisNodes.getLength(); i < N; ++i) { |
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185 Element axisElement = (Element)axisNodes.item(i); |
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186 String name = axisElement.getAttribute("name").trim(); |
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187 String align = axisElement.getAttribute("align").trim(); |
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188 if (name.isEmpty()) { |
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189 continue; |
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190 } |
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191 boolean isleftAlign = false; |
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192 boolean forceAlign = false; |
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193 for (String part: align.split("[\\s,]")) { |
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194 part = part.trim(); |
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195 if ("left" .equals(part)) isleftAlign = true; |
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196 else if ("right".equals(part)) isleftAlign = false; |
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197 else if ("force".equals(part)) forceAlign = true; |
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198 } |
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199 axesAttrs.add(new AxisAttributes(name, isleftAlign, forceAlign)); |
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200 } |
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201 } |
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202 |
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203 public List<AxisProcessor> getAxesProcessors() { |
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204 return axesProcessors; |
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205 } |
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206 |
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207 public Title getTitle() { |
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208 return title; |
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209 } |
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210 |
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211 public Title getSubtitle() { |
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212 return subtitle; |
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213 } |
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214 |
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215 private void parseProcessors(Element config) { |
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216 NodeList processorNodes = config.getElementsByTagName("processor"); |
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217 |
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218 for (int i = 0, N = processorNodes.getLength(); i < N; ++i) { |
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219 Element processorElement = (Element)processorNodes.item(i); |
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220 String className = processorElement.getAttribute("class").trim(); |
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221 String axisName = processorElement.getAttribute("axis").trim(); |
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222 if (className.isEmpty() || axisName.isEmpty()) { |
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223 continue; |
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224 } |
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225 |
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226 try { |
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227 Processor processor = |
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228 (Processor)Class.forName(className).newInstance(); |
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229 axesProcessors.add(new AxisProcessor(processor, axisName)); |
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230 } |
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231 catch (ClassNotFoundException cnfe) { |
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232 log.error(cnfe, cnfe); |
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233 } |
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234 catch (InstantiationException ie) { |
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235 log.error(ie, ie); |
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236 } |
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237 catch (IllegalAccessException ia) { |
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238 log.error(ia, ia); |
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239 } |
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240 catch (ClassCastException cce) { |
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241 log.error(cce, cce); |
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242 } |
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243 } |
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244 } |
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245 |
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246 private void parseTitle(Element config) { |
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247 title = extractTitle(config, "title"); |
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248 } |
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249 |
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250 private void parseSubtitle(Element config) { |
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251 subtitle = extractTitle(config, "subtitle"); |
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252 } |
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253 |
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254 private static Title extractTitle(Element config, String tagName) { |
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255 NodeList titleNodes = config.getElementsByTagName(tagName); |
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256 if (titleNodes.getLength() < 1) { |
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257 return null; |
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258 } |
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259 Element titleElement = (Element)titleNodes.item(0); |
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260 String key = titleElement.getAttribute("key"); |
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261 String def = titleElement.getAttribute("default"); |
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262 Title title = new Title(key, def); |
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263 NodeList argumentNodes = titleElement.getElementsByTagName("arg"); |
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264 for (int i = 0, N = argumentNodes.getLength(); i < N; ++i) { |
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265 Element argumentElement = (Element)argumentNodes.item(i); |
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266 String expression = argumentElement.getAttribute("expr"); |
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267 String type = argumentElement.getAttribute("type"); |
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268 title.addArgument(new Argument(expression, type)); |
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269 } |
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270 return title; |
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271 } |
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272 } |
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273 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 : |