Mercurial > dive4elements > gnv-client

annotate gnv/src/main/java/de/intevation/gnv/action/DoExportAction.java @ 1145:dfe1ac687c7f tip

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added tags
author Thomas Arendsen Hein <thomas@intevation.de>
date Fri, 28 Sep 2012 12:16:15 +0200
parents 28a0628b11b0
children
rev   line source
1022
28a0628b11b0 Added license file and license header.
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1 /*
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2 * Copyright (c) 2010 by Intevation GmbH
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3 *
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4 * This program is free software under the LGPL (>=v2.1)
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5 * Read the file LGPL.txt coming with the software for details
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6 * or visit http://www.gnu.org/licenses/ if it does not exist.
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7 */
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8
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9 package de.intevation.gnv.action;
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10
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11 import de.intevation.gnv.action.sessionmodel.SessionModel;
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12 import de.intevation.gnv.action.sessionmodel.SessionModelFactory;
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13
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14 import de.intevation.gnv.artifactdatabase.client.ArtifactDatabaseClient;
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15 import de.intevation.gnv.artifactdatabase.client.ArtifactDatabaseClientFactory;
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16
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17 import de.intevation.gnv.artifactdatabase.objects.DefaultInputParameter;
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18 import de.intevation.gnv.artifactdatabase.objects.ExportMode;
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19 import de.intevation.gnv.artifactdatabase.objects.InputParameter;
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20 import de.intevation.gnv.artifactdatabase.objects.OutputMode;
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21 import de.intevation.gnv.artifactdatabase.objects.OutputParameter;
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22
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23 import java.io.OutputStream;
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24
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25 import java.util.ArrayList;
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26 import java.util.Collection;
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27 import java.util.Iterator;
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28
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29 import javax.servlet.http.HttpServletRequest;
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30 import javax.servlet.http.HttpServletResponse;
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31
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32 import org.apache.log4j.Logger;
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33
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34 import org.apache.struts.action.ActionForm;
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35 import org.apache.struts.action.ActionForward;
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36 import org.apache.struts.action.ActionMapping;
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37
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38 /**
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39 * This controller is called to trigger an export (e.g. pdf, svg, image). A
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40 * 'save-file' dialog is opened to save the export.
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41 *
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42 * @author <a href="mailto:tim.englich@intevation.de">Tim Englich</a>
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43 */
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44 public class DoExportAction extends ArtifactDatabaseActionBase {
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45
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46 /**
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47 * the logger, used to log exceptions and additonaly information
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48 */
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49 private static Logger log = Logger.getLogger(DoExportAction.class);
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50
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51 /**
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52 * Constructor
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53 */
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54 public DoExportAction() {
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55 super();
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56 }
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57
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58
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59 @Override
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60 public ActionForward execute(
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61 ActionMapping mapping,
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62 ActionForm form,
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63 HttpServletRequest request,
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64 HttpServletResponse response)
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65 throws Exception
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66 {
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67 if (isSessionExhausted(request)) {
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68 return sessionExhaustedForward(mapping, form, request, response);
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69 }
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70
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71 try {
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72 String target = request.getParameter("target");
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73 String mimeType = request.getParameter("mimetype");
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74 String mode = request.getParameter("mode");
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75
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76 log.debug("Target: " + target);
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77 log.debug("MimeType: " + mimeType);
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78 log.debug("ExportMode: " + mode);
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79
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80 SessionModel sm = SessionModelFactory.getInstance()
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81 .getSessionModel(request);
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82 OutputMode outputMode = sm.getOutputMode(target);
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83 if (outputMode != null) {
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84 ExportMode exportMode = outputMode.getExportMode(mode);
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85
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86 if (target.equals(mode) || (exportMode != null
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87 && exportMode.getMimeType().equals(mimeType)))
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88 {
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89 Collection<OutputParameter> inputParameter = outputMode
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90 .getOutputParameters();
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91 Collection<InputParameter> ips = null;
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92 if (inputParameter != null) {
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93 ips = new ArrayList<InputParameter>(inputParameter.size());
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94 Iterator<OutputParameter> it = inputParameter.iterator();
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95 while (it.hasNext()) {
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96 String name = it.next().getName();
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97 String[] values = request.getParameterValues(name);
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98 InputParameter ip = new DefaultInputParameter(name,
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99 values);
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100 ips.add(ip);
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101 }
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102 }
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103
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104 ArtifactDatabaseClient adc = ArtifactDatabaseClientFactory
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105 .getInstance()
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106 .getArtifactDatabaseClient(getLocale(request));
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107
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108 this.setHeaders(mode, mimeType, response, request);
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109
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110 OutputStream outputStream = response.getOutputStream();
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111 adc.doOutput(
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112 sm.getSelectedArtifactFactory(),
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113 sm.getCurrentArtifact(),
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114 outputStream,
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115 target,
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116 mode,
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117 mimeType,
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118 ips);
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119
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120 outputStream.flush();
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121 outputStream.close();
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122 }
576
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123 else if (exportMode == null) {
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124 Collection<OutputParameter> inputParameter = outputMode
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125 .getOutputParameters();
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126 Collection<InputParameter> ips = null;
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127 if (inputParameter != null) {
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128 ips = new ArrayList<InputParameter>(inputParameter.size());
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129 Iterator<OutputParameter> it = inputParameter.iterator();
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130 while (it.hasNext()) {
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131 String name = it.next().getName();
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132 String[] values = request.getParameterValues(name);
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133 InputParameter ip = new DefaultInputParameter(name,
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134 values);
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135 ips.add(ip);
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136 }
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137 }
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138
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139 ArtifactDatabaseClient adc = ArtifactDatabaseClientFactory
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140 .getInstance()
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141 .getArtifactDatabaseClient(getLocale(request));
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142
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143 this.setHeaders(target, mimeType, response, request);
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144
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145 OutputStream outputStream = response.getOutputStream();
583
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146 adc.doOutput(
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147 sm.getSelectedArtifactFactory(),
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148 sm.getCurrentArtifact(),
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149 outputStream,
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150 target,
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151 mode,
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152 mimeType,
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153 ips);
576
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154
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155 outputStream.flush();
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diff changeset
156 outputStream.close();
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157 }
573
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158 else {
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159 if (outputMode == null) {
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diff changeset
160 log.error("Outputmode is not supported.");
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161 }
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162 else if (!exportMode.getMimeType().equals(mimeType)) {
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163 log.error("MimeType "+mimeType+" wis not supported.");
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164 }
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165 // TODO FIXME: Fehlerbehandlung
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166 }
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167 }
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diff changeset
168 return super.execute(mapping, form, request, response);
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169 } catch (Exception e) {
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170 log.error(e, e);
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diff changeset
171 request.setAttribute(
bd67164cf28b Devided actions and exports. Adjusted output and export actions.
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diff changeset
172 CommunicationKeys.REQUEST_EXCEPTION_MESSAGE_ID, e
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diff changeset
173 .getMessage());
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diff changeset
174 return super.getExceptionForward(mapping);
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175 }
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176 }
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diff changeset
177
29
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178 protected void setHeaders(String target, String mimeType,
38
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179 HttpServletResponse response,
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180 HttpServletRequest request) {
29
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181 log.debug("DoExportAction.setHeaders");
34
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182 try {
573
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diff changeset
183 response.setHeader("Content-Type", mimeType);
36
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184 String fileName = "GNVEXPORT_" + System.currentTimeMillis() + ".";
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185
398
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diff changeset
186 target = target.toLowerCase();
589
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diff changeset
187 log.debug("******************************************************");
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188 log.debug("TARGET: " + target);
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189 log.debug("MIMETYPE: " + mimeType);
398
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190
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diff changeset
191 if (target.equals("chart")) {
36
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192 fileName = fileName
38
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diff changeset
193 + mimeType.substring(mimeType.indexOf("/") + 1);
681
15ac78a91d1b Removed trailing whitespace.
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194 }
579
dc548655a66e Removed litte copy-paste mistake while setting file-extension for exports.
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diff changeset
195 else if (target.equals("histogram")) {
578
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diff changeset
196 fileName = fileName
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197 + mimeType.substring(mimeType.indexOf("/") + 1);
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diff changeset
198 }
589
960ae818296e img-Exports will get a file extension that corresponds to their mime-type (issue187).
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diff changeset
199 else if (target.equals("img")) {
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diff changeset
200 fileName = fileName
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diff changeset
201 + mimeType.substring(mimeType.indexOf("/") + 1);
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diff changeset
202 }
398
9005b39c52ac Only display chart addons if we really display a chart.
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diff changeset
203 else if (target.equals("pdf")) {
283
ef10bf497a16 Added link in gui to export charts to pdf.
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parents: 38
diff changeset
204 fileName = fileName + "pdf";
398
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parents: 284
diff changeset
205 } else if (target.equals("svg")) {
284
47e3647af88f Added link in gui to export charts to svg.
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parents: 283
diff changeset
206 fileName = fileName + "svg";
398
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parents: 284
diff changeset
207 } else if (target.equals("csv")) {
36
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diff changeset
208 fileName = fileName + "csv";
398
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parents: 284
diff changeset
209 } else if (target.equals("zip")) {
9005b39c52ac Only display chart addons if we really display a chart.
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parents: 284
diff changeset
210 fileName = fileName + "zip";
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parents: 284
diff changeset
211 } else if (target.equals("wms")) {
9005b39c52ac Only display chart addons if we really display a chart.
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parents: 284
diff changeset
212 fileName = fileName + "xml";
36
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parents: 34
diff changeset
213 } else {
ad381cc47217 Format Code to max 80 Chars per Row
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parents: 34
diff changeset
214 fileName = fileName + "txt";
34
25fdec8b4c69 Added Global Errorhandling to the GNV-Client
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parents: 29
diff changeset
215 }
36
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parents: 34
diff changeset
216 log.debug("FileName for Export: " + fileName);
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diff changeset
217 response.setHeader("Content-Disposition", "attachment;filename="
38
fccf90761825 Format Code to max 80 Chars per Row better Formatter choosen
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parents: 36
diff changeset
218 + fileName);
34
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diff changeset
219 } catch (Exception e) {
36
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diff changeset
220 log.error(e, e);
29
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diff changeset
221 }
bba8fd97e549 Export and Diagrammoptions integrated into GUI
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222 }
bba8fd97e549 Export and Diagrammoptions integrated into GUI
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223 }
700
89ade245ca7a Using unix line endings only.
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parents: 699
diff changeset
224 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 :
http://dive4elements.wald.intevation.org