Mercurial > dive4elements > gnv-client

annotate gnv/src/main/java/de/intevation/gnv/action/DoExportAction.java @ 573:bd67164cf28b

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Devided actions and exports. Adjusted output and export actions. gnv/trunk@704 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Ingo Weinzierl <ingo.weinzierl@intevation.de>
date Tue, 23 Feb 2010 17:43:16 +0000
parents 9005b39c52ac
children b21fc7502750
rev   line source
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1 /**
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2 *
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3 */
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4 package de.intevation.gnv.action;
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5
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6 import javax.servlet.http.HttpServletRequest;
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7 import javax.servlet.http.HttpServletResponse;
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8
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9 import org.apache.log4j.Logger;
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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 * @author Tim Englich <tim.englich@intevation.de>
36
ad381cc47217 Format Code to max 80 Chars per Row
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40 *
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41 */
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42 public class DoExportAction extends ArtifactDatabaseActionBase {
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43
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44 /**
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45 * the logger, used to log exceptions and additonaly information
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46 */
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47 private static Logger log = Logger.getLogger(DoExportAction.class);
36
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48
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49 /**
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50 * Constructor
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51 */
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52 public DoExportAction() {
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53 super();
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54 }
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55
573
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56 /**
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57 * @see de.intevation.gnv.action.ArtifactDatabaseActionBase#execute(org.apache.struts.action.ActionMapping,
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58 * org.apache.struts.action.ActionForm,
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59 * javax.servlet.http.HttpServletRequest,
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60 * javax.servlet.http.HttpServletResponse)
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61 */
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62 @Override
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63 public ActionForward execute(
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64 ActionMapping mapping,
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65 ActionForm form,
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66 HttpServletRequest request,
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67 HttpServletResponse response)
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68 throws Exception
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69 {
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70 try {
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71 String target = request.getParameter("target");
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72 String mimeType = request.getParameter("mimetype");
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73 String mode = request.getParameter("mode");
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74
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75 log.debug("Target: " + target);
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76 log.debug("MimeType: " + mimeType);
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77 log.debug("ExportMode: " + mode);
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78
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79 SessionModel sm = SessionModelFactory.getInstance()
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80 .getSessionModel(request);
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81 OutputMode outputMode = sm.getOutputMode(target);
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82 if (outputMode != null) {
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83 ExportMode exportMode = outputMode.getExportMode(mode);
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84
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85 if (target.equals(mode) || (exportMode != null
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86 && exportMode.getMimeType().equals(mimeType)))
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87 {
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88 Collection<OutputParameter> inputParameter = outputMode
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89 .getOutputParameters();
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90 Collection<InputParameter> ips = null;
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91 if (inputParameter != null) {
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92 ips = new ArrayList<InputParameter>(inputParameter.size());
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93 Iterator<OutputParameter> it = inputParameter.iterator();
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94 while (it.hasNext()) {
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95 String name = it.next().getName();
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96 String[] values = request.getParameterValues(name);
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97 InputParameter ip = new DefaultInputParameter(name,
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98 values);
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99 ips.add(ip);
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100 }
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101 }
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102
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103 ArtifactDatabaseClient adc = ArtifactDatabaseClientFactory
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104 .getInstance()
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105 .getArtifactDatabaseClient(getLocale(request));
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106
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107 this.setHeaders(mode, mimeType, response, request);
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108
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109 OutputStream outputStream = response.getOutputStream();
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110 adc.doOutput(sm.getSelectedArtifactFactory(), sm
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111 .getCurrentArtifact(), outputStream, mode, mimeType,
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112 ips);
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113
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114 outputStream.flush();
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115 outputStream.close();
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116 }
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117 else {
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118 if (outputMode == null) {
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119 log.error("Outputmode is not supported.");
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120 }
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121 else if (!exportMode.getMimeType().equals(mimeType)) {
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122 log.error("MimeType "+mimeType+" wis not supported.");
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123 }
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124 // TODO FIXME: Fehlerbehandlung
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125 }
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126 }
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127 return super.execute(mapping, form, request, response);
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128 } catch (Exception e) {
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129 log.error(e, e);
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130 request.setAttribute(
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131 CommunicationKeys.REQUEST_EXCEPTION_MESSAGE_ID, e
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132 .getMessage());
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133 return super.getExceptionForward(mapping);
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134 }
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135 }
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136
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137 protected void setHeaders(String target, String mimeType,
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138 HttpServletResponse response,
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139 HttpServletRequest request) {
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140 log.debug("DoExportAction.setHeaders");
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141 try {
573
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142 response.setHeader("Content-Type", mimeType);
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143 String fileName = "GNVEXPORT_" + System.currentTimeMillis() + ".";
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144
398
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145 target = target.toLowerCase();
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146
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147 if (target.equals("chart")) {
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148 fileName = fileName
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149 + mimeType.substring(mimeType.indexOf("/") + 1);
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150 }
398
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151 else if (target.equals("pdf")) {
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152 fileName = fileName + "pdf";
398
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153 } else if (target.equals("svg")) {
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154 fileName = fileName + "svg";
398
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155 } else if (target.equals("csv")) {
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156 fileName = fileName + "csv";
398
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157 } else if (target.equals("zip")) {
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158 fileName = fileName + "zip";
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159 } else if (target.equals("wms")) {
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160 fileName = fileName + "xml";
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161 } else {
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162 fileName = fileName + "txt";
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163 }
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164 log.debug("FileName for Export: " + fileName);
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165 response.setHeader("Content-Disposition", "attachment;filename="
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166 + fileName);
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167 } catch (Exception e) {
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168 log.error(e, e);
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169 }
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170 }
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171 }
http://dive4elements.wald.intevation.org