Mercurial > dive4elements > river

annotate flys-artifacts/src/main/java/de/intevation/flys/themes/ThemeFactory.java @ 342:f72c63713099

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Removed debug code that has been commited by accident. flys-artifacts/trunk@1741 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Ingo Weinzierl <ingo.weinzierl@intevation.de>
date Thu, 21 Apr 2011 08:49:58 +0000
parents b36fd8f21e6a
children 88a669785863
rev   line source
340
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1 package de.intevation.flys.themes;
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2
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3 import javax.xml.xpath.XPathConstants;
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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 org.w3c.dom.Document;
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8 import org.w3c.dom.NamedNodeMap;
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9 import org.w3c.dom.Node;
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10 import org.w3c.dom.NodeList;
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11
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12 import de.intevation.artifacts.common.utils.XMLUtils;
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13
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14
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15 /**
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16 * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a>
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17 */
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18 public class ThemeFactory {
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19
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20 private static Logger logger = Logger.getLogger(ThemeFactory.class);
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21
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22 private ThemeFactory() {
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23 }
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24
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25
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26 /**
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27 * Creates a new theme from <i>config</i>.
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28 *
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29 * @param themeCfg The theme config document that is used to fetch parent
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30 * themes.
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31 * @param config The theme config node.
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32 *
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33 * @return a new theme.
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34 */
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35 public static Theme createTheme(Document themeCfg, Node config) {
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36 String name = getName(config);
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37 String desc = getDescription(config);
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38
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39 logger.debug("Create new theme: " + name);
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40
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41 Theme theme = new DefaultTheme(name, desc);
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42
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43 parseInherits(themeCfg, config, theme);
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44 parseFields(config, theme);
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45 parseAttrs(config, theme);
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46
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47 return theme;
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48 }
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49
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50
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51 protected static String getName(Node config) {
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52 return (String) XMLUtils.xpath(config, "@name", XPathConstants.STRING);
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53 }
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54
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55
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56 protected static String getDescription(Node config) {
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57 return (String) XMLUtils.xpath(config, "@desc", XPathConstants.STRING);
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58 }
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59
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60
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61 protected static void parseInherits(Document themeCfg, Node cfg, Theme t) {
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62 logger.debug("ThemeFactory.parseInherits");
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63
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64 NodeList inherits = (NodeList) XMLUtils.xpath(
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65 cfg, "inherits/inherit", XPathConstants.NODESET);
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66
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67 int num = inherits != null ? inherits.getLength() : 0;
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68
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69 if (num == 0) {
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70 logger.debug("Theme does not inherit from other themes.");
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71 return;
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72 }
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73
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74 logger.debug("Theme inherits from " + num + " other themes.");
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75
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76 for (int i = 0; i < num; i++) {
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77 Node inherit = inherits.item(i);
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78 String from = (String) XMLUtils.xpath(
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79 inherit, "@from", XPathConstants.STRING);
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80
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81 Node tmp = getThemeNode(themeCfg, from);
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82
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83 parseInherits(themeCfg, tmp, t);
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84 parseFields(tmp, t);
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85 }
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86 }
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87
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88
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89 protected static Node getThemeNode(Document themeCfg, String name) {
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90 if (name == null) {
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91 logger.warn("Cannot search theme config without name!");
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92 return null;
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93 }
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94
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95 logger.debug("Search for theme: " + name);
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96
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97 String xpath = "/themes/theme[@name='" + name + "']";
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98
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99 return (Node) XMLUtils.xpath(themeCfg, xpath, XPathConstants.NODE);
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100 }
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101
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102
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103 protected static void parseFields(Node config, Theme theme) {
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104 if (config == null || theme == null) {
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105 logger.warn("Parsing fields without node or theme is senseless!");
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106 return;
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107 }
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108
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109 NodeList fields = (NodeList) XMLUtils.xpath(
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110 config, "fields/field", XPathConstants.NODESET);
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111
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112 int num = fields != null ? fields.getLength() : 0;
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113
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114 logger.debug("Found " + num + " own fields in this theme.");
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115
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116 if (num == 0) {
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117 logger.debug("Theme has no own fields.");
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118 return;
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119 }
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120
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121 for (int i = 0; i < num; i++) {
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122 Node field = fields.item(i);
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123
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124 addField(theme, field);
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125 }
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126 }
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127
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128
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129 protected static void addField(Theme theme, Node field) {
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130 String name = (String) XMLUtils.xpath(
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131 field, "@name", XPathConstants.STRING);
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132
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133 logger.debug("Add field: " + name);
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134
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135 NamedNodeMap attrs = field.getAttributes();
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136
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137 int num = attrs != null ? attrs.getLength() : 0;
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138
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139 if (num == 0) {
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140 logger.warn("This field has no attributes.");
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141 return;
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142 }
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143
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144 ThemeField theField = new DefaultThemeField(name);
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145
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146 for (int i = 0; i < num; i++) {
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147 Node attr = attrs.item(i);
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148
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149 String key = attr.getNodeName();
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150 String value = attr.getNodeValue();
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151
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152 theField.setAttribute(key, value);
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153 }
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154
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155 theme.addField(name, theField);
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156 }
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157
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158
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159 protected static void parseAttrs(Node config, Theme theme) {
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160 NamedNodeMap attrs = config.getAttributes();
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161
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162 int num = attrs != null ? attrs.getLength() : 0;
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163
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164 if (num == 0) {
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165 logger.debug("Theme has no attributes set.");
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166 return;
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167 }
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168
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169 for (int i = 0; i < num; i++) {
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170 Node attr = attrs.item(i);
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171
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172 String name = attr.getNodeName();
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173 String value = attr.getNodeValue();
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174
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175 theme.addAttribute(name, value);
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176 }
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177 }
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178 }
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179 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org