Mercurial > dive4elements > river

annotate artifacts/src/main/java/org/dive4elements/river/exports/DiagramAttributes.java @ 7062:4310c612a986 generator-refactoring

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Added 'include-zero' attribute to <axis> tag in diagram configuration.
author Sascha L. Teichmann <teichmann@intevation.de>
date Fri, 20 Sep 2013 12:35:14 +0200
parents 4f6b3ba542de
children 726d998dce29
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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78ded33f5f5b Some more accessors and typo fix
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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 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org