Mercurial > dive4elements > river

annotate flys-client/src/main/java/de/intevation/flys/client/server/CollectionItemAttributeServiceImpl.java @ 1289:d59dcaf52796

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Improved error handling if no calculation result data was found. flys-client/trunk@2879 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Ingo Weinzierl <ingo.weinzierl@intevation.de>
date Tue, 04 Oct 2011 07:55:43 +0000
parents 0f3b19df1880
children bdc270ea6195
rev   line source
1285
0f3b19df1880 Added new service and model for collection item attributes.
Raimund Renkert <raimund.renkert@intevation.de>
parents:
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1 package de.intevation.flys.client.server;
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2
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3 import org.w3c.dom.Document;
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4 import org.w3c.dom.Element;
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5 import org.w3c.dom.NodeList;
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6
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7 import com.google.gwt.user.server.rpc.RemoteServiceServlet;
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8
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9 import de.intevation.artifacts.httpclient.exceptions.ConnectionException;
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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 import de.intevation.artifacts.httpclient.http.response.DocumentResponseHandler;
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13
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14 import de.intevation.artifacts.common.ArtifactNamespaceContext;
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15 import de.intevation.artifacts.common.utils.XMLUtils;
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16
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17 import de.intevation.flys.client.shared.exceptions.ServerException;
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18 import de.intevation.flys.client.client.services.CollectionItemAttributeService;
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19
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20 import de.intevation.flys.client.shared.model.Collection;
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21 import de.intevation.flys.client.shared.model.Artifact;
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22 import de.intevation.flys.client.shared.model.CollectionItemAttribute;
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23 import de.intevation.flys.client.shared.model.Style;
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24 import de.intevation.flys.client.shared.model.StyleSetting;
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25
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26
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Raimund Renkert <raimund.renkert@intevation.de>
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27 /**
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28 *
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29 * @author <a href="mailto:raimund.renkert@intevation.de">Raimund Renkert</a>
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30 */
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31 public class CollectionItemAttributeServiceImpl
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32 extends RemoteServiceServlet
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33 implements CollectionItemAttributeService
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34 {
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35 public static final String XPATH_RESULT = "/art:result/text()";
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36
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37 public static final String OPERATION_FAILURE = "FAILED";
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38
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39
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Raimund Renkert <raimund.renkert@intevation.de>
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40 public CollectionItemAttribute getCollectionItemAttribute(
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41 Collection collection,
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42 String artifact,
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43 String url,
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Raimund Renkert <raimund.renkert@intevation.de>
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44 String locale)
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45 throws ServerException
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46 {
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47 System.out.println(
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48 "GetCollectionItemAttributeServiceImpl.getCollectionItemAttribute");
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49
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50 Document requestDoc = XMLUtils.newDocument();
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51
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52 XMLUtils.ElementCreator ec = new XMLUtils.ElementCreator(
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53 requestDoc,
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54 ArtifactNamespaceContext.NAMESPACE_URI,
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55 ArtifactNamespaceContext.NAMESPACE_PREFIX);
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56
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57 Element action = ec.create("action");
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58
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59 Element type = ec.create("type");
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60 ec.addAttr(type, "name", "getitemattribute", false);
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61
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62 Element art = ec.create("artifact");
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63 ec.addAttr(art, "uuid", artifact, false);
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64
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65 type.appendChild(art);
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66 action.appendChild(type);
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67 requestDoc.appendChild (action);
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68
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69 try {
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70 HttpClient client = new HttpClientImpl(url, locale);
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71 Document res = (Document) client.doCollectionAction(
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72 requestDoc,
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73 collection.identifier(),
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74 new DocumentResponseHandler());
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75
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76 return readXML (res);
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77 }
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78 catch (ConnectionException ce) {
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79 System.err.println(ce.getLocalizedMessage());
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80 }
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81 throw new ServerException("");
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82 }
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83
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84 protected CollectionItemAttribute readXML (Document doc) {
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85 CollectionItemAttribute cia = new CollectionItemAttribute();
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86
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87 Element root = doc.getDocumentElement();
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88 NodeList themes = root.getElementsByTagName("art:themes");
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89
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90 if (themes.getLength() != 1) {
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91 return null;
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92 }
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93
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94 Element e = (Element) themes.item(0);
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95 NodeList items = e.getElementsByTagName("theme");
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96
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97 for (int i = 0; i < items.getLength(); i++) {
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98 cia.appendStyle(getStyle ((Element) items.item(i)));
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99 }
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100
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101 return cia;
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102 }
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103
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104
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105 protected Style getStyle (Element element) {
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106
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107 if (!element.getTagName().equals("theme")) {
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108 return null;
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109 }
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110
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111 NodeList list = element.getElementsByTagName("field");
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112 Style style = new Style();
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113 style.setName (element.getAttribute("name"));
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114 for(int i = 0; i < list.getLength(); i++) {
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115 Element e = (Element) list.item(i);
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116 StyleSetting set = new StyleSetting (
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117 e.getAttribute("name"),
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118 e.getAttribute("default"),
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119 e.getAttribute("display"),
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Raimund Renkert <raimund.renkert@intevation.de>
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120 e.getAttribute("hints"),
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121 e.getAttribute("type"));
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122 style.appendStyleSetting(set);
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123 }
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124 return style;
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125 }
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126 }
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127 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org