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annotate flys-client/src/main/java/de/intevation/flys/client/server/ChartServiceHelper.java @ 1351:19f621663b7a

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Add the format (png, pdf, svg) string into the xml document which is used for querying charts. flys-client/trunk@3022 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Ingo Weinzierl <ingo.weinzierl@intevation.de>
date Wed, 19 Oct 2011 09:35:41 +0000
parents e74bf6bfeeb6
children ab8eb2f544f2
rev   line source
549
e74bf6bfeeb6 Use the same code to create the attribute document for the chart creation in ChartOutputService and ChartInfoService.
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1 package de.intevation.flys.client.server;
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2
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3 import java.util.Map;
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4
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5 import org.w3c.dom.Document;
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6 import org.w3c.dom.Element;
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7
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8 import de.intevation.artifacts.common.ArtifactNamespaceContext;
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9 import de.intevation.artifacts.common.utils.XMLUtils;
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10 import de.intevation.artifacts.common.utils.XMLUtils.ElementCreator;
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11
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12
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13 /**
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14 * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a>
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15 */
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16 public class ChartServiceHelper {
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17
e74bf6bfeeb6 Use the same code to create the attribute document for the chart creation in ChartOutputService and ChartInfoService.
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18 /** The default chart width if no value is specified in the request.*/
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19 public static final int DEFAULT_CHART_WIDTH = 600;
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20
e74bf6bfeeb6 Use the same code to create the attribute document for the chart creation in ChartOutputService and ChartInfoService.
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21 /** The default chart height if no value is specified in the request.*/
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22 public static final int DEFAULT_CHART_HEIGHT = 400;
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23
e74bf6bfeeb6 Use the same code to create the attribute document for the chart creation in ChartOutputService and ChartInfoService.
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24
e74bf6bfeeb6 Use the same code to create the attribute document for the chart creation in ChartOutputService and ChartInfoService.
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25 private ChartServiceHelper() {
e74bf6bfeeb6 Use the same code to create the attribute document for the chart creation in ChartOutputService and ChartInfoService.
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26 }
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27
e74bf6bfeeb6 Use the same code to create the attribute document for the chart creation in ChartOutputService and ChartInfoService.
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28 /**
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29 * This method returns a document which might contain parameters to adjust
e74bf6bfeeb6 Use the same code to create the attribute document for the chart creation in ChartOutputService and ChartInfoService.
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30 * chart settings. The document is created using the information that are
e74bf6bfeeb6 Use the same code to create the attribute document for the chart creation in ChartOutputService and ChartInfoService.
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31 * contained in the request object.
e74bf6bfeeb6 Use the same code to create the attribute document for the chart creation in ChartOutputService and ChartInfoService.
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32 *
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33 * @param req The request document.
e74bf6bfeeb6 Use the same code to create the attribute document for the chart creation in ChartOutputService and ChartInfoService.
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34 *
e74bf6bfeeb6 Use the same code to create the attribute document for the chart creation in ChartOutputService and ChartInfoService.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
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35 * @return a document to adjust chart settings.
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36 */
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37 protected static Document getChartAttributes(Map<String, String> req) {
e74bf6bfeeb6 Use the same code to create the attribute document for the chart creation in ChartOutputService and ChartInfoService.
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38 System.out.println("ChartServiceHelper.getChartAttributes");
e74bf6bfeeb6 Use the same code to create the attribute document for the chart creation in ChartOutputService and ChartInfoService.
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39
e74bf6bfeeb6 Use the same code to create the attribute document for the chart creation in ChartOutputService and ChartInfoService.
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40 Document doc = XMLUtils.newDocument();
e74bf6bfeeb6 Use the same code to create the attribute document for the chart creation in ChartOutputService and ChartInfoService.
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41
e74bf6bfeeb6 Use the same code to create the attribute document for the chart creation in ChartOutputService and ChartInfoService.
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42 ElementCreator ec = new ElementCreator(
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43 doc,
e74bf6bfeeb6 Use the same code to create the attribute document for the chart creation in ChartOutputService and ChartInfoService.
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44 ArtifactNamespaceContext.NAMESPACE_URI,
e74bf6bfeeb6 Use the same code to create the attribute document for the chart creation in ChartOutputService and ChartInfoService.
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45 ArtifactNamespaceContext.NAMESPACE_PREFIX);
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46
e74bf6bfeeb6 Use the same code to create the attribute document for the chart creation in ChartOutputService and ChartInfoService.
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47 Element attributes = ec.create("attributes");
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48
e74bf6bfeeb6 Use the same code to create the attribute document for the chart creation in ChartOutputService and ChartInfoService.
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49 appendChartSize(req, attributes, ec);
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19f621663b7a Add the format (png, pdf, svg) string into the xml document which is used for querying charts.
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50 appendFormat(req, attributes, ec);
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51 appendXRange(req, attributes, ec);
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52 appendYRange(req, attributes, ec);
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53
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54 doc.appendChild(attributes);
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55
e74bf6bfeeb6 Use the same code to create the attribute document for the chart creation in ChartOutputService and ChartInfoService.
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56 return doc;
e74bf6bfeeb6 Use the same code to create the attribute document for the chart creation in ChartOutputService and ChartInfoService.
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57 }
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58
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59
e74bf6bfeeb6 Use the same code to create the attribute document for the chart creation in ChartOutputService and ChartInfoService.
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60 /**
e74bf6bfeeb6 Use the same code to create the attribute document for the chart creation in ChartOutputService and ChartInfoService.
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61 * This method extracts the size (width/height) of a chart from request
e74bf6bfeeb6 Use the same code to create the attribute document for the chart creation in ChartOutputService and ChartInfoService.
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62 * object and append those values - if they exist - to the attribute
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63 * document used to adjust chart settings.
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64 *
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65 * @param req The request object that might contain the chart size.
e74bf6bfeeb6 Use the same code to create the attribute document for the chart creation in ChartOutputService and ChartInfoService.
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66 * @param attributes The attributes element used to adjust chart settings.
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67 * @param ec The ElementCreator that might be used to create new Elements.
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68 */
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69 protected static void appendChartSize(
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70 Map<String, String> req,
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71 Element attributes,
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72 ElementCreator ec)
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73 {
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74 System.out.println("ChartServiceHelper.appendChartSize");
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75
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76 Element size = ec.create("size");
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77
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78 String width = req.get("width");
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79 String height = req.get("height");
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80
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81 if (width == null || height == null) {
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82 width = String.valueOf(DEFAULT_CHART_WIDTH);
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83 height = String.valueOf(DEFAULT_CHART_HEIGHT);
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84 }
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85
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86 ec.addAttr(size, "width", width, true);
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87 ec.addAttr(size, "height", height, true);
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88
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89 attributes.appendChild(size);
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90 }
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91
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92
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93 /**
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94 * This method extracts the x range for the chart from request object and
e74bf6bfeeb6 Use the same code to create the attribute document for the chart creation in ChartOutputService and ChartInfoService.
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95 * appends those range - if it exists - to the attribute document used to
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96 * adjust the chart settings.
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97 *
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Ingo Weinzierl <ingo.weinzierl@intevation.de>
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98 * @param req The request object that might contain the chart size.
e74bf6bfeeb6 Use the same code to create the attribute document for the chart creation in ChartOutputService and ChartInfoService.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
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99 * @param doc The attribute document used to adjust chart settings.
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Ingo Weinzierl <ingo.weinzierl@intevation.de>
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100 * @param ec The ElementCreator that might be used to create new Elements.
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101 */
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102 protected static void appendXRange(
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103 Map<String, String> req,
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104 Element attributes,
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105 ElementCreator ec)
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106 {
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107 System.out.println("ChartServiceHelper.appendXRange");
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108
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109 Element range = ec.create("xrange");
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110
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111 String from = req.get("minx");
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112 String to = req.get("maxx");
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113
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114 if (from != null && to != null) {
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115 ec.addAttr(range, "from", from, true);
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116 ec.addAttr(range, "to", to, true);
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117
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118 attributes.appendChild(range);
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119 }
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120 }
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121
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122
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123 /**
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124 * This method extracts the x range for the chart from request object and
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125 * appends those range - if it exists - to the attribute document used to
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126 * adjust the chart settings.
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127 *
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128 * @param req The request object that might contain the chart size.
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129 * @param doc The attribute document used to adjust chart settings.
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130 * @param ec The ElementCreator that might be used to create new Elements.
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131 */
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132 protected static void appendYRange(
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133 Map<String, String> req,
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134 Element attributes,
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135 ElementCreator ec)
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136 {
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137 System.out.println("ChartServiceHelper.appendYRange");
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138
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139 Element range = ec.create("yrange");
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140
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141 String from = req.get("miny");
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142 String to = req.get("maxy");
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143
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144 if (from != null && to != null) {
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145 ec.addAttr(range, "from", from, true);
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146 ec.addAttr(range, "to", to, true);
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147
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148 attributes.appendChild(range);
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149 }
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150 }
1351
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151
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152
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153 /**
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154 * This method extracts the format string from request object and appends
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155 * those format - if existing - to the attribute document used to adjust
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156 * the chart settings.
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157 *
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158 * @param req The request object that might contain the chart format.
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159 * @param doc The attribute document used to adjust chart settings.
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160 * @param ec The ElementCreator that might be used to create new Elements.
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161 */
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162 protected static void appendFormat(
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163 Map<String, String> req,
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164 Element attributes,
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165 ElementCreator ec
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166
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167 ) {
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168 System.out.println("ChartServiceHelper.appendFormat");
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169
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170 String formatStr = req.get("format");
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171 if (formatStr == null || formatStr.length() == 0) {
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172 return;
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173 }
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174
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175 Element format = ec.create("format");
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176 ec.addAttr(format, "value", formatStr, true);
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177
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178 attributes.appendChild(format);
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179 }
549
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180 }
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181 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org