Mercurial > dive4elements > river

annotate flys-client/src/main/java/de/intevation/flys/client/server/ChartServiceHelper.java @ 4740:fb135e1dfa35

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Added 'type' attribute to <dc:variable/> element. If an optional 'type' attribute is given the result of the XPATH expression is interpreted as this type. Valid values are 'number', 'bool', 'node' and 'nodeset'. All other defaults to 'string' which also is the default if nor type is given.
author Sascha L. Teichmann <teichmann@intevation.de>
date Wed, 02 Jan 2013 15:31:53 +0100
parents 1780841d79af
children
rev   line source
549
e74bf6bfeeb6 Use the same code to create the attribute document for the chart creation in ChartOutputService and ChartInfoService.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
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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 org.apache.log4j.Logger;
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9
549
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10 import de.intevation.artifacts.common.ArtifactNamespaceContext;
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11 import de.intevation.artifacts.common.utils.XMLUtils;
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12 import de.intevation.artifacts.common.utils.XMLUtils.ElementCreator;
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13
e74bf6bfeeb6 Use the same code to create the attribute document for the chart creation in ChartOutputService and ChartInfoService.
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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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Ingo Weinzierl <ingo.weinzierl@intevation.de>
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17 */
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18 public class ChartServiceHelper {
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19
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20 private static final Logger logger =
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21 Logger.getLogger(ChartServiceHelper.class);
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parents: 1351
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22
ab8eb2f544f2 Replaced stdout and stderr logging with log4j loggers in server classes.
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parents: 1351
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23
549
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24 /** The default chart width if no value is specified in the request.*/
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25 public static final int DEFAULT_CHART_WIDTH = 600;
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26
e74bf6bfeeb6 Use the same code to create the attribute document for the chart creation in ChartOutputService and ChartInfoService.
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27 /** The default chart height if no value is specified in the request.*/
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28 public static final int DEFAULT_CHART_HEIGHT = 400;
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29
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30
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31 private ChartServiceHelper() {
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32 }
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33
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34 /**
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35 * 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.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
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36 * chart settings. The document is created using the information that are
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Ingo Weinzierl <ingo.weinzierl@intevation.de>
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37 * contained in the request object.
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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38 *
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Ingo Weinzierl <ingo.weinzierl@intevation.de>
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39 * @param req The request document.
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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40 *
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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41 * @return a document to adjust chart settings.
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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42 */
e74bf6bfeeb6 Use the same code to create the attribute document for the chart creation in ChartOutputService and ChartInfoService.
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43 protected static Document getChartAttributes(Map<String, String> req) {
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44 logger.debug("ChartServiceHelper.getChartAttributes");
549
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45
e74bf6bfeeb6 Use the same code to create the attribute document for the chart creation in ChartOutputService and ChartInfoService.
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46 Document doc = XMLUtils.newDocument();
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47
e74bf6bfeeb6 Use the same code to create the attribute document for the chart creation in ChartOutputService and ChartInfoService.
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48 ElementCreator ec = new ElementCreator(
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49 doc,
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50 ArtifactNamespaceContext.NAMESPACE_URI,
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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51 ArtifactNamespaceContext.NAMESPACE_PREFIX);
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52
e74bf6bfeeb6 Use the same code to create the attribute document for the chart creation in ChartOutputService and ChartInfoService.
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53 Element attributes = ec.create("attributes");
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54
e74bf6bfeeb6 Use the same code to create the attribute document for the chart creation in ChartOutputService and ChartInfoService.
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55 appendChartSize(req, attributes, ec);
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56 appendFormat(req, attributes, ec);
549
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57 appendXRange(req, attributes, ec);
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58 appendYRange(req, attributes, ec);
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Raimund Renkert <raimund.renkert@intevation.de>
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59 appendCurrentKm(req, attributes, ec);
549
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60
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61 doc.appendChild(attributes);
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62
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63 return doc;
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64 }
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65
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66
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67 /**
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68 * 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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69 * object and append those values - if they exist - to the attribute
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70 * document used to adjust chart settings.
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71 *
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72 * @param req The request object that might contain the chart size.
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73 * @param attributes The attributes element used to adjust chart settings.
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Ingo Weinzierl <ingo.weinzierl@intevation.de>
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74 * @param ec The ElementCreator that might be used to create new Elements.
e74bf6bfeeb6 Use the same code to create the attribute document for the chart creation in ChartOutputService and ChartInfoService.
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75 */
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76 protected static void appendChartSize(
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77 Map<String, String> req,
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78 Element attributes,
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79 ElementCreator ec)
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80 {
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parents: 1351
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81 logger.debug("ChartServiceHelper.appendChartSize");
549
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82
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83 Element size = ec.create("size");
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84
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85 String width = req.get("width");
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86 String height = req.get("height");
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87
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88 if (width == null || height == null) {
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89 width = String.valueOf(DEFAULT_CHART_WIDTH);
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90 height = String.valueOf(DEFAULT_CHART_HEIGHT);
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91 }
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92
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93 ec.addAttr(size, "width", width, true);
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94 ec.addAttr(size, "height", height, true);
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95
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96 attributes.appendChild(size);
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97 }
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98
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99
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100 /**
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101 * 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.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
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102 * appends those range - if it exists - to the attribute document used to
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103 * adjust the chart settings.
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Ingo Weinzierl <ingo.weinzierl@intevation.de>
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104 *
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Ingo Weinzierl <ingo.weinzierl@intevation.de>
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105 * @param req The request object that might contain the chart size.
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Ingo Weinzierl <ingo.weinzierl@intevation.de>
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106 * @param doc The attribute document used to adjust chart settings.
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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107 * @param ec The ElementCreator that might be used to create new Elements.
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Ingo Weinzierl <ingo.weinzierl@intevation.de>
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108 */
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109 protected static void appendXRange(
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110 Map<String, String> req,
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111 Element attributes,
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112 ElementCreator ec)
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113 {
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114 logger.debug("ChartServiceHelper.appendXRange");
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115
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116 Element range = ec.create("xrange");
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117
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118 String from = req.get("minx");
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119 String to = req.get("maxx");
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120
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121 if (from != null && to != null) {
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122 ec.addAttr(range, "from", from, true);
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123 ec.addAttr(range, "to", to, true);
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124
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125 attributes.appendChild(range);
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126 }
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127 }
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128
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129
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130 /**
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131 * This method extracts the x range for the chart from request object and
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132 * appends those range - if it exists - to the attribute document used to
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133 * adjust the chart settings.
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134 *
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135 * @param req The request object that might contain the chart size.
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136 * @param doc The attribute document used to adjust chart settings.
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137 * @param ec The ElementCreator that might be used to create new Elements.
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138 */
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139 protected static void appendYRange(
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140 Map<String, String> req,
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141 Element attributes,
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142 ElementCreator ec)
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143 {
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144 logger.debug("ChartServiceHelper.appendYRange");
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145
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146 Element range = ec.create("yrange");
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147
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148 String from = req.get("miny");
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149 String to = req.get("maxy");
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150
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151 if (from != null && to != null) {
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152 ec.addAttr(range, "from", from, true);
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153 ec.addAttr(range, "to", to, true);
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154
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155 attributes.appendChild(range);
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156 }
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157 }
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158
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159
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160 /**
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161 * This method extracts the format string from request object and appends
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162 * those format - if existing - to the attribute document used to adjust
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163 * the chart settings.
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164 *
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165 * @param req The request object that might contain the chart format.
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166 * @param doc The attribute document used to adjust chart settings.
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167 * @param ec The ElementCreator that might be used to create new Elements.
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168 */
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169 protected static void appendFormat(
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170 Map<String, String> req,
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171 Element attributes,
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172 ElementCreator ec
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173
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174 ) {
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175 logger.debug("ChartServiceHelper.appendFormat");
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176
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177 String formatStr = req.get("format");
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178 if (formatStr == null || formatStr.length() == 0) {
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179 return;
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180 }
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181
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182 Element format = ec.create("format");
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183 ec.addAttr(format, "value", formatStr, true);
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184
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185 attributes.appendChild(format);
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186 }
2906
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187
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188
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189 /**
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190 * This method extracts the current km for the chart from request object and
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191 * appends this km - if it exists - to the attribute document used to
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192 * adjust the chart settings.
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193 *
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194 * @param req The request object that might contain the chart size.
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195 * @param doc The attribute document used to adjust chart settings.
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196 * @param ec The ElementCreator that might be used to create new Elements.
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197 */
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198 protected static void appendCurrentKm(
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199 Map<String, String> req,
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200 Element attributes,
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201 ElementCreator ec)
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202 {
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203 logger.debug("ChartServiceHelper.appendCurrentKm");
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204
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205 Element currentKm = ec.create("currentKm");
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206
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207 String km = req.get("km");
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208
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209 if (km != null) {
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210 ec.addAttr(currentKm, "km", km, true);
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211
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212 attributes.appendChild(currentKm);
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213 }
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214 }
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215
549
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216 }
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217 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org