Mercurial > dive4elements > river

annotate flys-client/src/main/java/de/intevation/flys/client/server/ChartOutputServiceImpl.java @ 5818:a4ff4167be1e

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Request feature info on all layers and show it as html if the server does not return valid gml. Non queryable layers produce an error message when the request fails. This is good enough
author Andre Heinecke <aheinecke@intevation.de>
date Wed, 24 Apr 2013 17:33:27 +0200
parents 2867a0192aed
children
rev   line source
78
9ca5160cf080 Added a service that builds up requests to retrieve chart images. Use this service to display charts in the ChartOutputTab.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
1 package de.intevation.flys.client.server;
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2
9ca5160cf080 Added a service that builds up requests to retrieve chart images. Use this service to display charts in the ChartOutputTab.
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3 import java.io.OutputStream;
9ca5160cf080 Added a service that builds up requests to retrieve chart images. Use this service to display charts in the ChartOutputTab.
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4 import java.io.IOException;
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5 import java.util.HashMap;
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6 import java.util.Map;
78
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7
9ca5160cf080 Added a service that builds up requests to retrieve chart images. Use this service to display charts in the ChartOutputTab.
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8 import org.w3c.dom.Document;
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9
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10 import org.apache.log4j.Logger;
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12 import javax.servlet.http.HttpServlet;
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13 import javax.servlet.http.HttpServletRequest;
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14 import javax.servlet.http.HttpServletResponse;
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15
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16 import de.intevation.artifacts.common.utils.ClientProtocolUtils;
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17
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18 import de.intevation.artifacts.httpclient.http.HttpClient;
9ca5160cf080 Added a service that builds up requests to retrieve chart images. Use this service to display charts in the ChartOutputTab.
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19 import de.intevation.artifacts.httpclient.http.HttpClientImpl;
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20
9ca5160cf080 Added a service that builds up requests to retrieve chart images. Use this service to display charts in the ChartOutputTab.
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21
9ca5160cf080 Added a service that builds up requests to retrieve chart images. Use this service to display charts in the ChartOutputTab.
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22 /**
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23 * This service is used to request a chart from the artifact server. The
9ca5160cf080 Added a service that builds up requests to retrieve chart images. Use this service to display charts in the ChartOutputTab.
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24 * response is directed directly to the output stream, so the image that is
9ca5160cf080 Added a service that builds up requests to retrieve chart images. Use this service to display charts in the ChartOutputTab.
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25 * retrieved is displayed in the UI afterwards.
9ca5160cf080 Added a service that builds up requests to retrieve chart images. Use this service to display charts in the ChartOutputTab.
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26 *
9ca5160cf080 Added a service that builds up requests to retrieve chart images. Use this service to display charts in the ChartOutputTab.
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27 * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a>
9ca5160cf080 Added a service that builds up requests to retrieve chart images. Use this service to display charts in the ChartOutputTab.
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28 */
9ca5160cf080 Added a service that builds up requests to retrieve chart images. Use this service to display charts in the ChartOutputTab.
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29 public class ChartOutputServiceImpl
9ca5160cf080 Added a service that builds up requests to retrieve chart images. Use this service to display charts in the ChartOutputTab.
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30 extends HttpServlet
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31 {
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32 private static final Logger logger =
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33 Logger.getLogger(ChartOutputServiceImpl.class);
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34
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35
78
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36 public void doGet(HttpServletRequest req, HttpServletResponse resp) {
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37 logger.info("ChartOutputServiceImpl.doGet");
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38
9ca5160cf080 Added a service that builds up requests to retrieve chart images. Use this service to display charts in the ChartOutputTab.
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39 try {
9ca5160cf080 Added a service that builds up requests to retrieve chart images. Use this service to display charts in the ChartOutputTab.
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40 OutputStream out = resp.getOutputStream();
9ca5160cf080 Added a service that builds up requests to retrieve chart images. Use this service to display charts in the ChartOutputTab.
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41
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2867a0192aed Cosmetics, whitespaces, docs.
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42 String url = getServletContext().getInitParameter("server-url");
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43
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44 String uuid = req.getParameter("uuid");
2867a0192aed Cosmetics, whitespaces, docs.
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45 String type = req.getParameter("type");
2867a0192aed Cosmetics, whitespaces, docs.
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46 String locale = req.getParameter("locale");
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47
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48 prepareHeader(req, resp);
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49
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50 Document request = ClientProtocolUtils.newOutCollectionDocument(
549
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51 uuid, type, type,
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52 ChartServiceHelper.getChartAttributes(prepareChartAttributes(req)));
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53
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54 HttpClient client = new HttpClientImpl(url, locale);
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55 client.collectionOut(request, uuid, "chart", out);
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56
9ca5160cf080 Added a service that builds up requests to retrieve chart images. Use this service to display charts in the ChartOutputTab.
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57 out.close();
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58 out.flush();
9ca5160cf080 Added a service that builds up requests to retrieve chart images. Use this service to display charts in the ChartOutputTab.
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59 }
9ca5160cf080 Added a service that builds up requests to retrieve chart images. Use this service to display charts in the ChartOutputTab.
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60 catch (IOException ioe) {
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61 logger.error(ioe, ioe);
78
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62 }
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63 catch (Exception e) {
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64 logger.error(e, e);
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65 }
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66 }
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68
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69 protected Map<String, String> prepareChartAttributes(HttpServletRequest req) {
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70 Map<String, String> attr = new HashMap<String, String>();
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71
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72 Map params = req.getParameterMap();
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73
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74 attr.put("width", req.getParameter("width"));
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75 attr.put("height", req.getParameter("height"));
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76 attr.put("minx", req.getParameter("minx"));
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77 attr.put("maxx", req.getParameter("maxx"));
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78 attr.put("miny", req.getParameter("miny"));
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79 attr.put("maxy", req.getParameter("maxy"));
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80 attr.put("format", req.getParameter("format"));
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81 attr.put("km", req.getParameter("currentKm"));
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82
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83 if (logger.isDebugEnabled()) {
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84 logger.debug("====== ZOOM VALUES =======");
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85 logger.debug(" min x: " + req.getParameter("minx"));
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86 logger.debug(" max x: " + req.getParameter("maxx"));
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87 logger.debug(" min y: " + req.getParameter("miny"));
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88 logger.debug(" max y: " + req.getParameter("maxy"));
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89 }
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90
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91 return attr;
78
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92 }
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93
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94
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95 protected void prepareHeader(
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96 HttpServletRequest req,
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97 HttpServletResponse resp
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98 ) {
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99 String export = req.getParameter("export");
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100
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101 if (export != null && export.equals("true")) {
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102 String format = req.getParameter("format");
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103
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104 if (format == null || format.length() == 0) {
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105 format = "png";
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106 }
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107
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108 String fn = "chart_export" + getFileExtension(format);
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109
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110 resp.setHeader("Content-Disposition", "attachment;filename=" + fn);
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111 resp.setHeader("Content-Type", getMimeType(format));
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112 }
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113 }
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114
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115
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116 protected String getFileExtension(String format) {
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117 if (format.equals("png")) {
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118 return ".png";
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119 }
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120 else if (format.equals("pdf")) {
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121 return ".pdf";
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122 }
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123 else if (format.equals("svg")) {
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124 return ".svg";
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125 }
1587
45cd2364adad Issue 466.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 1425
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126 else if (format.equals("csv")) {
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Raimund Renkert <raimund.renkert@intevation.de>
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127 return ".csv";
45cd2364adad Issue 466.
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parents: 1425
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128 }
1344
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129
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130 return ".png";
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131 }
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132
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133
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134 protected String getMimeType(String format) {
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135 if (format.equals("png")) {
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136 return "image/png";
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parents: 549
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137 }
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parents: 549
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138 else if (format.equals("pdf")) {
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139 return "application/pdf";
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parents: 549
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140 }
51d4b51a51ed Added icons to export chart as PNG, PDF and SVG to the ChartToolbar.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 549
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141 else if (format.equals("svg")) {
51d4b51a51ed Added icons to export chart as PNG, PDF and SVG to the ChartToolbar.
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142 return "svg+xml";
51d4b51a51ed Added icons to export chart as PNG, PDF and SVG to the ChartToolbar.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 549
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143 }
1587
45cd2364adad Issue 466.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 1425
diff changeset
144 else if (format.equals("csv")) {
45cd2364adad Issue 466.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 1425
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145 return "text/plain";
45cd2364adad Issue 466.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 1425
diff changeset
146 }
1344
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Ingo Weinzierl <ingo.weinzierl@intevation.de>
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147
51d4b51a51ed Added icons to export chart as PNG, PDF and SVG to the ChartToolbar.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 549
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148 return "image/png";
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149 }
78
9ca5160cf080 Added a service that builds up requests to retrieve chart images. Use this service to display charts in the ChartOutputTab.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
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150 }
280
b493d606fdef Enabled the client to request charts in different sizes.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 254
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151 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org