Mercurial > dive4elements > river
annotate artifacts/src/main/java/org/dive4elements/river/exports/DiagramAttributes.java @ 7068:726d998dce29 generator-refactoring
Remove Axis Walker, unabstract Diagram generator
Diagram generator can now be used as an instance configured
in the out-generators config
author | Andre Heinecke <aheinecke@intevation.de> |
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date | Fri, 20 Sep 2013 14:55:44 +0200 |
parents | 4310c612a986 |
children | f0731aa7b735 |
rev | line source |
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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 private boolean includeZero; |
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35 |
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36 public AxisAttributes() { |
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37 } |
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38 |
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39 public AxisAttributes( |
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40 String name, |
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41 boolean isLeftAlign, |
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42 boolean forceAlign, |
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43 boolean includeZero |
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44 ) { |
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45 this.name = name; |
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46 this.isLeftAlign = isLeftAlign; |
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47 this.forceAlign = forceAlign; |
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48 this.includeZero = includeZero; |
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49 } |
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50 |
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51 public String getName() { |
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52 return name; |
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53 } |
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54 |
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55 public boolean isLeftAlign() { |
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56 return isLeftAlign; |
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57 } |
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58 |
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59 public boolean forceAlign() { |
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60 return forceAlign; |
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61 } |
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62 |
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63 public boolean includeZero() { |
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64 return includeZero; |
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65 } |
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66 } // class AxisAttributes |
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67 |
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68 public static class Argument { |
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69 private String expression; |
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70 private String type; |
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71 |
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72 public Argument() { |
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73 } |
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74 |
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75 public Argument(String expression, String type) { |
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76 this.expression = expression; |
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77 this.type = type; |
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78 } |
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79 |
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80 public Object evaluate(D4EArtifact artifact, CallContext context) { |
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81 if (expression.startsWith("artifact.")) { |
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82 String value = artifact.getDataAsString( |
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83 expression.substring("artifact.".length())); |
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84 return convert(value); |
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85 } |
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86 if (expression.startsWith("context.")) { |
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87 return context.getContextValue( |
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88 expression.substring("context.".length())); |
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89 } |
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90 return expression; |
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91 } |
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92 |
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93 private Object convert(String value) { |
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94 if (value == null || type == null) { |
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95 return value; |
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96 } |
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97 if ("double".equals(type)) { |
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98 return Double.valueOf(value); |
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99 } |
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100 if ("int".equals(type)) { |
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101 return Integer.valueOf(value); |
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102 } |
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103 // TODO: more types |
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104 return value; |
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105 } |
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106 } // class Argument |
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107 |
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108 public static class Title { |
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109 |
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110 private String key; |
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111 private String def; |
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112 private List<Argument> arguments; |
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113 |
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114 public Title() { |
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115 arguments = new ArrayList<Argument>(5); |
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116 } |
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117 |
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118 public Title(String key) { |
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119 this(key, key); |
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120 } |
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121 |
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122 public Title(String key, String def) { |
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123 this(); |
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124 this.key = key; |
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125 this.def = def; |
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126 } |
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127 |
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128 public String getKey() { |
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129 return key; |
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130 } |
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131 |
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132 public void addArgument(Argument argument) { |
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133 arguments.add(argument); |
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134 } |
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135 |
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136 public String evaluate(D4EArtifact artifact, CallContext context) { |
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137 if (key == null || key.isEmpty()) { |
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138 return def; |
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139 } |
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140 Object [] args = new Object[arguments.size()]; |
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141 for (int i = 0; i < args.length; ++i) { |
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142 args[i] = arguments.get(i).evaluate(artifact, context); |
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143 } |
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144 return Resources.getMsg(context.getMeta(), key, def, args); |
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145 } |
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146 } // class Title |
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147 |
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148 private List<AxisAttributes> axesAttrs; |
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149 private List<Processor> processors; |
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150 |
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151 private Title title; |
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152 private Title subtitle; |
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153 private Title domainAxisTitle; |
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154 |
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155 public DiagramAttributes() { |
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156 axesAttrs = new ArrayList<AxisAttributes>(5); |
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157 processors = new ArrayList<Processor>(5); |
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158 } |
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159 |
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160 public DiagramAttributes(Element config) { |
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161 this(); |
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162 parseAxis(config); |
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163 parseProcessors(config); |
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164 parseTitle(config); |
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165 parseSubtitle(config); |
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166 parseDomainAxisTitle(config); |
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167 } |
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168 |
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169 public List<AxisAttributes> getAxesAttributes() { |
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170 return axesAttrs; |
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171 } |
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172 |
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173 private void parseAxis(Element config) { |
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174 NodeList axisNodes = config.getElementsByTagName("axis"); |
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175 |
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176 for (int i = 0, N = axisNodes.getLength(); i < N; ++i) { |
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177 Element axisElement = (Element)axisNodes.item(i); |
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178 String name = axisElement.getAttribute("name").trim(); |
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179 String align = axisElement.getAttribute("align").trim(); |
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180 String includeZero = |
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181 axisElement.getAttribute("include-zero").trim(); |
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182 if (name.isEmpty()) { |
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183 continue; |
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184 } |
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185 boolean isleftAlign = false; |
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186 boolean forceAlign = false; |
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187 for (String part: align.split("[\\s,]")) { |
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188 part = part.trim(); |
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189 if ("left" .equals(part)) isleftAlign = true; |
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190 else if ("right".equals(part)) isleftAlign = false; |
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191 else if ("force".equals(part)) forceAlign = true; |
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192 } |
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193 |
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194 axesAttrs.add(new AxisAttributes( |
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195 name, isleftAlign, forceAlign, |
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196 includeZero.equals("true"))); |
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197 } |
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198 } |
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199 |
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200 public List<Processor> getProcessors() { |
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201 return processors; |
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202 } |
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203 |
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204 public Title getTitle() { |
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205 return title; |
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206 } |
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207 |
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208 public Title getSubtitle() { |
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209 return subtitle; |
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210 } |
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211 |
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212 public Title getDomainAxisTitle() { |
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213 return domainAxisTitle; |
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214 } |
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215 |
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216 private void parseProcessors(Element config) { |
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217 NodeList processorNodes = config.getElementsByTagName("processor"); |
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218 |
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219 for (int i = 0, N = processorNodes.getLength(); i < N; ++i) { |
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220 Element processorElement = (Element)processorNodes.item(i); |
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221 String className = processorElement.getAttribute("class").trim(); |
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222 String axisName = processorElement.getAttribute("axis").trim(); |
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223 if (className.isEmpty() || axisName.isEmpty()) { |
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224 continue; |
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225 } |
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226 |
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227 try { |
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228 Processor processor = |
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229 (Processor)Class.forName(className).newInstance(); |
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230 processor.setAxisName(axisName); |
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231 processors.add(processor); |
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232 } |
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233 catch (ClassNotFoundException cnfe) { |
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234 log.error(cnfe, cnfe); |
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235 } |
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236 catch (InstantiationException ie) { |
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237 log.error(ie, ie); |
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238 } |
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239 catch (IllegalAccessException ia) { |
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240 log.error(ia, ia); |
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241 } |
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242 catch (ClassCastException cce) { |
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243 log.error(cce, cce); |
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244 } |
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245 } |
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246 } |
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247 |
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248 private void parseTitle(Element config) { |
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249 title = extractTitle(config, "title"); |
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250 } |
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251 |
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252 private void parseSubtitle(Element config) { |
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253 subtitle = extractTitle(config, "subtitle"); |
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254 } |
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255 |
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256 private void parseDomainAxisTitle(Element config) { |
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257 domainAxisTitle = extractTitle(config, "domain-axis"); |
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258 } |
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259 |
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260 private static Title extractTitle(Element config, String tagName) { |
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261 NodeList titleNodes = config.getElementsByTagName(tagName); |
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262 if (titleNodes.getLength() < 1) { |
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263 return null; |
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264 } |
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265 Element titleElement = (Element)titleNodes.item(0); |
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266 String key = titleElement.getAttribute("key"); |
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267 String def = titleElement.getAttribute("default"); |
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268 Title title = new Title(key, def); |
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269 NodeList argumentNodes = titleElement.getElementsByTagName("arg"); |
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270 for (int i = 0, N = argumentNodes.getLength(); i < N; ++i) { |
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271 Element argumentElement = (Element)argumentNodes.item(i); |
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272 String expression = argumentElement.getAttribute("expr"); |
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273 String type = argumentElement.getAttribute("type"); |
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274 title.addArgument(new Argument(expression, type)); |
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275 } |
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276 return title; |
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277 } |
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278 |
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279 public int getAxisIndex(String axisName) { |
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280 for (int i = axesAttrs.size()-1; i >= 0; --i) { |
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281 if (axesAttrs.get(i).getName().equals(axisName)) { |
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282 return i; |
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283 } |
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284 } |
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285 return -1; |
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286 } |
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287 |
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288 public String getAxisName(int index) { |
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289 AxisAttributes att = axesAttrs.get(index); |
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290 if (att == null) { |
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291 return ""; /* null? */ |
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292 } |
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293 return att.getName(); |
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294 } |
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295 } |
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296 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 : |