Mercurial > dive4elements > river

annotate flys-client/src/main/java/de/intevation/flys/client/server/ChartServiceHelper.java @ 1361:9d67cd17ab78

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Bugfix: #352 Keep grid selection in theme panels alive after themes has been modified. flys-client/trunk@3054 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Ingo Weinzierl <ingo.weinzierl@intevation.de>
date Fri, 21 Oct 2011 10:19:07 +0000
parents 19f621663b7a
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
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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
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24
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25 private ChartServiceHelper() {
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26 }
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27
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28 /**
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29 * This method returns a document which might contain parameters to adjust
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30 * chart settings. The document is created using the information that are
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31 * contained in the request object.
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32 *
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33 * @param req The request document.
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34 *
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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) {
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38 System.out.println("ChartServiceHelper.getChartAttributes");
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39
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40 Document doc = XMLUtils.newDocument();
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41
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42 ElementCreator ec = new ElementCreator(
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43 doc,
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44 ArtifactNamespaceContext.NAMESPACE_URI,
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45 ArtifactNamespaceContext.NAMESPACE_PREFIX);
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46
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47 Element attributes = ec.create("attributes");
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48
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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);
549
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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
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56 return doc;
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57 }
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58
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59
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60 /**
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61 * This method extracts the size (width/height) of a chart from request
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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.
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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
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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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98 * @param req The request object that might contain the chart size.
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99 * @param doc The attribute document used to adjust chart settings.
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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