Mercurial > dive4elements > river

annotate flys-client/src/main/java/de/intevation/flys/client/server/FixingsOverviewServiceImpl.java @ 3370:08b2472111aa

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New implementation of OverviewOutputTab which has a minimalistic chart toolbar and no chart theme panel. The overview image is fetched as single image from server. flys-client/trunk@5078 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Ingo Weinzierl <ingo.weinzierl@intevation.de>
date Fri, 20 Jul 2012 07:40:55 +0000
parents 96d02c6f44a2
children 653dd9d7f5d5
rev   line source
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1 package de.intevation.flys.client.server;
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2
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3 import com.google.gwt.user.server.rpc.RemoteServiceServlet;
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4
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5 import de.intevation.artifacts.common.utils.XMLUtils;
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6 import de.intevation.artifacts.common.utils.XSLTransformer;
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7
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8 import de.intevation.artifacts.httpclient.exceptions.ConnectionException;
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9
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10 import de.intevation.artifacts.httpclient.http.HttpClient;
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11 import de.intevation.artifacts.httpclient.http.HttpClientImpl;
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12
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13 import de.intevation.flys.client.client.services.FixingsOverviewService;
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14
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15 import de.intevation.flys.client.shared.exceptions.ServerException;
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17 import de.intevation.flys.client.shared.model.FixingsOverviewInfo.FixEvent;
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18 import de.intevation.flys.client.shared.model.FixingsOverviewInfo.Sector;
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19
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20 import de.intevation.flys.client.shared.model.FixingsOverviewInfo;
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21
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22 import java.io.IOException;
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23 import java.io.InputStream;
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24
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25 import java.util.ArrayList;
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26 import java.util.List;
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27
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28 import javax.xml.xpath.XPathConstants;
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29
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30 import org.apache.log4j.Logger;
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31
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32 import org.w3c.dom.Document;
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33 import org.w3c.dom.Element;
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34 import org.w3c.dom.NodeList;
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35
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36 public class FixingsOverviewServiceImpl
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37 extends RemoteServiceServlet
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38 implements FixingsOverviewService
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39 {
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40 private static final Logger log =
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41 Logger.getLogger(FixingsOverviewServiceImpl.class);
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42
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43 public static final String SERVICE_NAME = "fixings-overview";
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44
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45 public static final String XSL_TRANSFORM =
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46 "/WEB-INF/stylesheets/fixoverview2html.xsl";
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47
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48 protected static final String XPATH_RID = "/fixings/river/@rid";
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49 protected static final String XPATH_RIVER = "/fixings/river/@name";
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50 protected static final String XPATH_RFROM = "/fixings/river/@from";
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51 protected static final String XPATH_RTO = "/fixings/river/@to";
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52
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53 protected static final String XPATH_EVENT = "/fixings/events/event";
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54
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55
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56 @Override
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57 public FixingsOverviewInfo generateOverview(
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58 String locale,
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59 String uuid,
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60 String filter,
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61 boolean checkboxes,
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62 String callback
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63 )
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64 throws ServerException
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65 {
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66 log.info("FixingsOverviewServiceImpl.doGet");
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67
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68 if (filter == null || filter.length() == 0) {
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69 log.warn("Missing 'filter' parameter.");
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70 return null;
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71 }
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72
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73 boolean debug = log.isDebugEnabled();
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74
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75 if (debug) {
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76 log.debug("JSON filter: ------------------");
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77 log.debug(filter);
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78 }
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79
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80 Document filterDoc = XMLUtils.jsonToXML(filter);
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81
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82 if (filterDoc == null) {
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83 log.warn("Creating filter document failed.");
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84 return null;
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85 }
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86
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87 if (debug) {
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88 log.debug("XML filter: ------------------");
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89 log.debug(XMLUtils.toString(filterDoc));
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90 }
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91
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92 try {
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93 String url = getServletContext().getInitParameter("server-url");
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94 HttpClient client = new HttpClientImpl(url, locale);
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95 Document resultDoc =
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96 client.callService(url, SERVICE_NAME, filterDoc);
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97
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98 if (debug) {
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99 log.debug("Result XML: -----------");
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100 log.debug(XMLUtils.toString(resultDoc));
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101 }
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102
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103 FixingsOverviewInfo i =
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104 getInfo(resultDoc, uuid, checkboxes, callback);
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105 return i;
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106 }
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107 catch (ConnectionException ce) {
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108 log.error(ce);
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109 }
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110 return null;
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111 }
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112
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113
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114 protected FixingsOverviewInfo getInfo(
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115 Document doc,
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116 String uuid,
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117 boolean checkboxes,
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118 String callback
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119 ) {
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120 InputStream transform = getServletContext()
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121 .getResourceAsStream(XSL_TRANSFORM);
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122
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2536
diff changeset
123 if (transform == null) {
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2536
diff changeset
124 log.warn("transform not found");
d20f16a430a9 Removed some XPath misuse.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2536
diff changeset
125 return null;
d20f16a430a9 Removed some XPath misuse.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2536
diff changeset
126 }
d20f16a430a9 Removed some XPath misuse.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2536
diff changeset
127
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
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diff changeset
128 String result = null;
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
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diff changeset
129 try {
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130 XSLTransformer xformer = new XSLTransformer();
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131 xformer.addParameter("project-uuid", uuid);
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
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132 xformer.addParameter(
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2536
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133 "render-checkboxes",
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2536
diff changeset
134 checkboxes ? Boolean.TRUE : Boolean.FALSE);
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135 xformer.addParameter("callback", callback);
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parents: 2536
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136 result = xformer.transform(doc, transform);
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2536
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137 }
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2536
diff changeset
138 finally {
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2536
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139 try { transform.close(); }
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2536
diff changeset
140 catch (IOException ioe) {}
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2536
diff changeset
141 }
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2536
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142
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2915
diff changeset
143 if (log.isDebugEnabled()) {
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144 log.debug("--------------------------------------");
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parents: 2915
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145 log.debug(result);
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parents: 2915
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146 log.debug("--------------------------------------");
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2915
diff changeset
147 }
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2915
diff changeset
148
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diff changeset
149 int rid = -1;
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parents: 2493
diff changeset
150 double from = -1;
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diff changeset
151 double to = -1;
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2536
diff changeset
152
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2536
diff changeset
153 String rid_str = XMLUtils.xpathString(doc, XPATH_RID, null);
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2536
diff changeset
154 String river = XMLUtils.xpathString(doc, XPATH_RIVER, null);
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diff changeset
155 String from_str = XMLUtils.xpathString(doc, XPATH_RFROM, null);
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parents: 2536
diff changeset
156 String to_str = XMLUtils.xpathString(doc, XPATH_RTO, null);
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2536
diff changeset
157
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diff changeset
158 try {
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parents: 2536
diff changeset
159 rid = Integer.parseInt(rid_str);
d20f16a430a9 Removed some XPath misuse.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2536
diff changeset
160 from = Double.parseDouble(from_str);
d20f16a430a9 Removed some XPath misuse.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2536
diff changeset
161 to = Double.parseDouble(to_str);
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diff changeset
162 }
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Raimund Renkert <raimund.renkert@intevation.de>
parents: 2493
diff changeset
163 catch(NumberFormatException nfe) {
87ac5c532523 First part of the UI for fixing analysis parameter.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 2493
diff changeset
164 log.warn(nfe, nfe);
2493
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2489
diff changeset
165 }
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2489
diff changeset
166
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diff changeset
167 List<FixEvent> fixEvents = getFixEvents(doc);
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parents: 2493
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168 return new FixingsOverviewInfo(
87ac5c532523 First part of the UI for fixing analysis parameter.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 2493
diff changeset
169 rid,
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Raimund Renkert <raimund.renkert@intevation.de>
parents: 2493
diff changeset
170 river,
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Raimund Renkert <raimund.renkert@intevation.de>
parents: 2493
diff changeset
171 from,
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Raimund Renkert <raimund.renkert@intevation.de>
parents: 2493
diff changeset
172 to,
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Raimund Renkert <raimund.renkert@intevation.de>
parents: 2493
diff changeset
173 fixEvents,
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Raimund Renkert <raimund.renkert@intevation.de>
parents: 2493
diff changeset
174 result);
87ac5c532523 First part of the UI for fixing analysis parameter.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 2493
diff changeset
175 }
87ac5c532523 First part of the UI for fixing analysis parameter.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 2493
diff changeset
176
87ac5c532523 First part of the UI for fixing analysis parameter.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 2493
diff changeset
177
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diff changeset
178 protected List<FixEvent> getFixEvents(Document doc) {
2916
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parents: 2915
diff changeset
179 List<FixEvent> list = new ArrayList<FixEvent>();
1f63e2ef03d2 Added more debug output about the transmitted fix overview documents.
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parents: 2915
diff changeset
180
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diff changeset
181 NodeList events = (NodeList) XMLUtils.xpath(
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parents: 2493
diff changeset
182 doc,
87ac5c532523 First part of the UI for fixing analysis parameter.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 2493
diff changeset
183 XPATH_EVENT,
87ac5c532523 First part of the UI for fixing analysis parameter.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 2493
diff changeset
184 XPathConstants.NODESET,
87ac5c532523 First part of the UI for fixing analysis parameter.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 2493
diff changeset
185 null);
87ac5c532523 First part of the UI for fixing analysis parameter.
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parents: 2493
diff changeset
186
87ac5c532523 First part of the UI for fixing analysis parameter.
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parents: 2493
diff changeset
187 if (events == null || events.getLength() == 0) {
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parents: 2493
diff changeset
188 log.warn("No events in Overview!");
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2915
diff changeset
189 return list;
2505
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Raimund Renkert <raimund.renkert@intevation.de>
parents: 2493
diff changeset
190 }
87ac5c532523 First part of the UI for fixing analysis parameter.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 2493
diff changeset
191
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parents: 2536
diff changeset
192 for (int i = 0, E = events.getLength(); i < E; i++) {
d20f16a430a9 Removed some XPath misuse.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2536
diff changeset
193 Element n = (Element)events.item(i);
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parents: 2493
diff changeset
194 List<Sector> sectors = getSectors(n);
2915
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2536
diff changeset
195 String cid = n.getAttribute("cid");
d20f16a430a9 Removed some XPath misuse.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2536
diff changeset
196 String date = n.getAttribute("date");;
d20f16a430a9 Removed some XPath misuse.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2536
diff changeset
197 String name = n.getAttribute("description");
d20f16a430a9 Removed some XPath misuse.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2536
diff changeset
198 list.add(new FixEvent( cid, date, name, sectors));
2505
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parents: 2493
diff changeset
199 }
87ac5c532523 First part of the UI for fixing analysis parameter.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 2493
diff changeset
200 return list;
87ac5c532523 First part of the UI for fixing analysis parameter.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 2493
diff changeset
201 }
87ac5c532523 First part of the UI for fixing analysis parameter.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 2493
diff changeset
202
2915
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2536
diff changeset
203 protected List<Sector> getSectors(Element event) {
d20f16a430a9 Removed some XPath misuse.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2536
diff changeset
204 NodeList sectors = event.getElementsByTagName("sector");
d20f16a430a9 Removed some XPath misuse.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2536
diff changeset
205
d20f16a430a9 Removed some XPath misuse.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2536
diff changeset
206 if (sectors.getLength() == 0) {
2505
87ac5c532523 First part of the UI for fixing analysis parameter.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 2493
diff changeset
207 log.warn("No Sectors in Event!");
87ac5c532523 First part of the UI for fixing analysis parameter.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 2493
diff changeset
208 return null;
87ac5c532523 First part of the UI for fixing analysis parameter.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 2493
diff changeset
209 }
87ac5c532523 First part of the UI for fixing analysis parameter.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 2493
diff changeset
210
2915
d20f16a430a9 Removed some XPath misuse.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2536
diff changeset
211 List<Sector> list = new ArrayList<Sector>();
d20f16a430a9 Removed some XPath misuse.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2536
diff changeset
212 for (int i = 0, S = sectors.getLength(); i < S; i++) {
d20f16a430a9 Removed some XPath misuse.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2536
diff changeset
213 Element n = (Element)sectors.item(i);
d20f16a430a9 Removed some XPath misuse.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2536
diff changeset
214 int cls = -1;
2505
87ac5c532523 First part of the UI for fixing analysis parameter.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 2493
diff changeset
215 double from = -1;
2915
d20f16a430a9 Removed some XPath misuse.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2536
diff changeset
216 double to = -1;
d20f16a430a9 Removed some XPath misuse.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2536
diff changeset
217 String cls_str = n.getAttribute("class");
d20f16a430a9 Removed some XPath misuse.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2536
diff changeset
218 String from_str = n.getAttribute("from");
d20f16a430a9 Removed some XPath misuse.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2536
diff changeset
219 String to_str = n.getAttribute("to");
2505
87ac5c532523 First part of the UI for fixing analysis parameter.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 2493
diff changeset
220 try {
2915
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2536
diff changeset
221 cls = Integer.parseInt(cls_str);
d20f16a430a9 Removed some XPath misuse.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2536
diff changeset
222 from = Double.parseDouble(from_str);
d20f16a430a9 Removed some XPath misuse.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2536
diff changeset
223 to = Double.parseDouble(to_str);
2505
87ac5c532523 First part of the UI for fixing analysis parameter.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 2493
diff changeset
224 }
87ac5c532523 First part of the UI for fixing analysis parameter.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 2493
diff changeset
225 catch(NumberFormatException nfe) {
87ac5c532523 First part of the UI for fixing analysis parameter.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 2493
diff changeset
226 log.warn(nfe, nfe);
87ac5c532523 First part of the UI for fixing analysis parameter.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 2493
diff changeset
227 }
2915
d20f16a430a9 Removed some XPath misuse.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2536
diff changeset
228 list.add(new Sector(cls, from, to));
2505
87ac5c532523 First part of the UI for fixing analysis parameter.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 2493
diff changeset
229 }
87ac5c532523 First part of the UI for fixing analysis parameter.
Raimund Renkert <raimund.renkert@intevation.de>
parents: 2493
diff changeset
230 return list;
2489
2a504b6d9a1b Added stub for fixings overview service.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
231 }
2a504b6d9a1b Added stub for fixings overview service.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
232 }
2a504b6d9a1b Added stub for fixings overview service.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
233 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org