1 | package eu.clarin.cmdi.vlo.pages; |
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2 | |
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3 | import eu.clarin.cmdi.vlo.FacetConstants; |
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4 | import eu.clarin.cmdi.vlo.Resources; |
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5 | import eu.clarin.cmdi.vlo.StringUtils; |
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6 | import eu.clarin.cmdi.vlo.VloWebApplication; |
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7 | import eu.clarin.cmdi.vlo.VloWebApplication.ThemedSession; |
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8 | import eu.clarin.cmdi.vlo.config.VloConfig; |
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9 | import eu.clarin.cmdi.vlo.dao.DaoLocator; |
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10 | import java.io.InputStreamReader; |
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11 | import java.io.StringWriter; |
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12 | import java.io.UnsupportedEncodingException; |
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13 | import java.net.MalformedURLException; |
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14 | import java.net.URL; |
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15 | import java.net.URLEncoder; |
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16 | import java.util.ArrayList; |
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17 | import java.util.Collection; |
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18 | import java.util.HashMap; |
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19 | import java.util.Iterator; |
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20 | import java.util.List; |
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21 | import java.util.regex.Pattern; |
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22 | import javax.xml.transform.stream.StreamSource; |
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23 | import net.sf.saxon.s9api.Processor; |
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24 | import net.sf.saxon.s9api.Serializer; |
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25 | import net.sf.saxon.s9api.XdmNode; |
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26 | import net.sf.saxon.s9api.XsltCompiler; |
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27 | import net.sf.saxon.s9api.XsltExecutable; |
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28 | import net.sf.saxon.s9api.XsltTransformer; |
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29 | import org.apache.solr.common.SolrDocument; |
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30 | import org.apache.wicket.Component; |
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31 | import org.apache.wicket.PageParameters; |
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32 | import org.apache.wicket.RequestCycle; |
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33 | import org.apache.wicket.behavior.AbstractBehavior; |
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34 | import org.apache.wicket.extensions.ajax.markup.html.AjaxLazyLoadPanel; |
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35 | import org.apache.wicket.extensions.markup.html.basic.SmartLinkMultiLineLabel; |
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36 | import org.apache.wicket.extensions.markup.html.repeater.data.grid.ICellPopulator; |
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37 | import org.apache.wicket.extensions.markup.html.repeater.data.table.AbstractColumn; |
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38 | import org.apache.wicket.extensions.markup.html.repeater.data.table.DataTable; |
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39 | import org.apache.wicket.extensions.markup.html.repeater.data.table.HeadersToolbar; |
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40 | import org.apache.wicket.extensions.markup.html.repeater.data.table.IColumn; |
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41 | import org.apache.wicket.extensions.markup.html.repeater.data.table.PropertyColumn; |
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42 | import org.apache.wicket.markup.ComponentTag; |
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43 | import org.apache.wicket.markup.MarkupStream; |
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44 | import org.apache.wicket.markup.html.IHeaderResponse; |
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45 | import org.apache.wicket.markup.html.WebMarkupContainer; |
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46 | import org.apache.wicket.markup.html.basic.Label; |
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47 | import org.apache.wicket.markup.html.link.BookmarkablePageLink; |
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48 | import org.apache.wicket.markup.html.link.ExternalLink; |
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49 | import org.apache.wicket.markup.repeater.Item; |
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50 | import org.apache.wicket.markup.repeater.RepeatingView; |
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51 | import org.apache.wicket.model.IModel; |
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52 | import org.apache.wicket.model.ResourceModel; |
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53 | import org.apache.wicket.protocol.http.RequestUtils; |
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54 | import org.apache.wicket.protocol.http.WicketURLDecoder; |
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55 | import org.apache.wicket.protocol.http.WicketURLEncoder; |
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56 | import org.apache.wicket.resource.ContextRelativeResource; |
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57 | import org.slf4j.Logger; |
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58 | import org.slf4j.LoggerFactory; |
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59 | |
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60 | /** |
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61 | * Page showing VLO search results |
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62 | * |
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63 | * @author keeloo, for the addLandingPage links method and annotations |
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64 | */ |
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65 | public class ShowResultPage extends BasePage { |
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66 | |
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67 | private final static Logger LOG = LoggerFactory.getLogger(ShowResultPage.class); |
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68 | public static final String PARAM_DOC_ID = "docId"; |
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69 | public static final String feedbackfromURL = VloConfig.getFeedbackFromUrl(); |
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70 | |
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71 | private final URL xslFile = getClass().getResource("/cmdi2xhtml.xsl"); |
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72 | |
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73 | @SuppressWarnings("serial") |
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74 | public ShowResultPage(final PageParameters currentParam) { |
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75 | |
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76 | super(currentParam); |
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77 | final String docId = WicketURLDecoder.QUERY_INSTANCE.decode(getPageParameters().getString(PARAM_DOC_ID, null)); |
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78 | SolrDocument solrDocument = DaoLocator.getSearchResultsDao().getSolrDocument(docId); |
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79 | if (solrDocument != null) { |
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80 | final SearchPageQuery query = new SearchPageQuery(currentParam); |
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81 | |
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82 | // now the persistent parameters are not in the query parameters |
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83 | PageParameters newParam = new PageParameters (); |
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84 | // add the new query parameters to this map |
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85 | newParam.putAll(query.getPageParameters()); |
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86 | // add the persistent parameters to this map |
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87 | //newParam = webApp.reflectPersistentParameters(newParam); |
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88 | |
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89 | newParam = ((VloWebApplication.ThemedSession)getSession()).reflectPersistentParameters(newParam); |
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90 | |
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91 | BookmarkablePageLink<String> backLink = new BookmarkablePageLink<String>("backLink", FacetedSearchPage.class, newParam); |
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92 | add(backLink); |
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93 | String href = getHref(docId); |
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94 | if (href != null) { |
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95 | add(new ExternalLink("openBrowserLink", href, new ResourceModel(Resources.OPEN_IN_ORIGINAL_CONTEXT).getObject())); |
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96 | } else { |
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97 | add(new Label("openBrowserLink", new ResourceModel(Resources.ORIGINAL_CONTEXT_NOT_AVAILABLE).getObject())); |
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98 | } |
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99 | addAttributesTable(solrDocument); |
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100 | |
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101 | /* If there are any, add the link or links to landing pages |
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102 | * contained in the solr document. |
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103 | */ |
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104 | addLandingPageLinks(solrDocument); |
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105 | |
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106 | // also, if there are any, add the link or links to search pages |
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107 | addSearchPageLinks(solrDocument); |
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108 | |
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109 | // add the rest of the resource links to the result page |
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110 | addResourceLinks(solrDocument); |
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111 | |
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112 | addSearchServiceForm(solrDocument); |
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113 | addCompleteCmdiView(solrDocument); |
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114 | |
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115 | add(new AjaxLazyLoadPanel("prevNextHeader") { |
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116 | |
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117 | @Override |
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118 | public Component getLazyLoadComponent(String markupId) { |
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119 | return new PrevNextHeaderPanel(markupId, docId, query); |
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120 | } |
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121 | |
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122 | @Override |
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123 | public Component getLoadingComponent(String markupId) { |
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124 | return new PrevNextHeaderPanel(markupId); |
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125 | } |
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126 | }); |
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127 | } else { |
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128 | setResponsePage(new ResultNotFoundPage(currentParam)); |
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129 | } |
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130 | |
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131 | // add the feedback link to the result page |
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132 | addFeedbackLink(currentParam); |
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133 | } |
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134 | |
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135 | private String getHref(String linkToOriginalContext) { |
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136 | String result = linkToOriginalContext; |
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137 | if (linkToOriginalContext != null) { |
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138 | if (linkToOriginalContext.startsWith(FacetConstants.TEST_HANDLE_MPI_PREFIX)) { |
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139 | linkToOriginalContext = linkToOriginalContext.replace(FacetConstants.TEST_HANDLE_MPI_PREFIX, FacetConstants.HANDLE_MPI_PREFIX); |
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140 | } |
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141 | if (linkToOriginalContext.startsWith(FacetConstants.HANDLE_MPI_PREFIX)) { |
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142 | result = VloConfig.getIMDIBrowserUrl(linkToOriginalContext); |
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143 | } else { |
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144 | try { |
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145 | new URL(linkToOriginalContext); |
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146 | } catch (MalformedURLException e) { |
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147 | LOG.debug("Link to original context is incorrect:", e); |
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148 | result = null; |
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149 | } |
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150 | } |
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151 | } |
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152 | return result; |
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153 | } |
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154 | |
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155 | /* |
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156 | * Based on the solr document, create a table of meta data attribute and value pairs |
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157 | */ |
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158 | private void addAttributesTable(final SolrDocument solrDocument) { |
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159 | // because of FIELD_LANGUAGE_LINK, remove the FIELD_LANDGUAGE facet |
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160 | solrDocument.remove(FacetConstants.FIELD_LANGUAGE); |
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161 | /* Use the data provider from the solrDocument object as a provider |
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162 | * for the table to be instantiated here. |
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163 | */ |
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164 | DocumentAttributesDataProvider attributeProvider = new DocumentAttributesDataProvider(solrDocument); |
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165 | |
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166 | DataTable table; |
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167 | /* Create table: use the provider, and pass a method to create the |
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168 | * columns. |
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169 | */ |
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170 | table = new DataTable("attributesTable", createAttributesColumns(), attributeProvider, 250); |
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171 | // associate css with table |
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172 | table.setTableBodyCss("attributesTbody"); |
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173 | table.addTopToolbar(new HeadersToolbar(table, null)); |
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174 | // add table to page |
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175 | add(table); |
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176 | } |
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177 | |
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178 | /** |
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179 | * Create the columns for the table. |
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180 | * |
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181 | * Create one column for the attributes and one column for their values. |
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182 | * |
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183 | * @param |
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184 | */ |
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185 | private IColumn[] createAttributesColumns() { |
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186 | IColumn[] columns = new IColumn[2]; |
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187 | |
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188 | // create the column for the attribute names |
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189 | columns[0] = new PropertyColumn<Object>(new ResourceModel(Resources.FIELD), "field") { |
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190 | |
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191 | @Override |
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192 | public String getCssClass() { |
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193 | return "attribute"; |
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194 | } |
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195 | }; |
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196 | |
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197 | // create the column for the values of the attributes |
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198 | columns[1] = new AbstractColumn<DocumentAttribute>(new ResourceModel(Resources.VALUE)) { |
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199 | @Override |
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200 | public void populateItem(Item<ICellPopulator<DocumentAttribute>> cellItem, |
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201 | String componentId, IModel<DocumentAttribute> rowModel) { |
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202 | |
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203 | /* |
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204 | * While in the data for the table, the values (for the |
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205 | * description) attribute are structured. Creating a single |
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206 | * attribute, these values are collapsed. Refer to the |
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207 | * |
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208 | * DocumentAttribute |
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209 | * |
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210 | * class. |
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211 | */ |
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212 | DocumentAttribute attribute = rowModel.getObject(); |
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213 | |
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214 | if (attribute.getField().equals(FacetConstants.FIELD_LANGUAGES)) { |
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215 | cellItem.add(new SmartLinkMultiLineLabel(componentId, attribute.getValue()) { |
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216 | @Override |
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217 | protected void onComponentTagBody(MarkupStream markupStream, ComponentTag openTag) { |
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218 | setEscapeModelStrings(false); |
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219 | CharSequence body = getDefaultModelObjectAsString(); |
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220 | replaceComponentTagBody(markupStream, openTag, body); |
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221 | } |
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222 | }); |
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223 | } else if (attribute.getField().equals(FacetConstants.FIELD_COMPLETE_METADATA)) { |
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224 | cellItem.add(new SmartLinkMultiLineLabel(componentId, attribute.getValue()) { |
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225 | @Override |
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226 | protected void onComponentTagBody(MarkupStream markupStream, ComponentTag openTag) { |
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227 | setEscapeModelStrings(false); |
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228 | CharSequence body = getDefaultModelObjectAsString(); |
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229 | replaceComponentTagBody(markupStream, openTag, "<a href=\"" + body + "\">" + body + "</a>"); |
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230 | } |
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231 | }); |
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232 | } else { |
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233 | cellItem.add(new SmartLinkMultiLineLabel(componentId, attribute.getValue()) { |
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234 | @Override |
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235 | protected void onComponentTagBody(MarkupStream markupStream, ComponentTag openTag) { |
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236 | CharSequence body = StringUtils.toMultiLineHtml(getDefaultModelObjectAsString()); |
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237 | replaceComponentTagBody(markupStream, openTag, getSmartLink(body)); |
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238 | } |
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239 | }); |
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240 | } |
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241 | } |
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242 | |
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243 | @Override |
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244 | public String getCssClass() { |
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245 | return "attributeValue"; |
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246 | } |
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247 | }; |
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248 | |
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249 | return columns; |
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250 | } |
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251 | |
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252 | /** |
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253 | * Add landing page links to the result page. |
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254 | * |
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255 | * @param solrDocument the document to get the links from |
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256 | */ |
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257 | private void addLandingPageLinks(SolrDocument solrDocument) { |
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258 | |
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259 | Label oneLandingPageText; |
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260 | oneLandingPageText = new Label("oneLandingPage", |
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261 | new ResourceModel(Resources.LANDING_PAGE).getObject() + ":"); |
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262 | this.add(oneLandingPageText); |
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263 | |
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264 | Label moreLandingPagesText; |
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265 | moreLandingPagesText = new Label("moreLandingPages", |
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266 | new ResourceModel(Resources.LANDING_PAGES).getObject() + ":"); |
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267 | this.add(moreLandingPagesText); |
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268 | |
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269 | RepeatingView repeatingView = new RepeatingView("landingPageList"); |
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270 | add(repeatingView); |
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271 | |
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272 | /* |
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273 | * Depending on the number of links to be shown, at most one of the |
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274 | * labels in the accompanying HTML page that is subject to Wicket is |
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275 | * made visible. |
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276 | */ |
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277 | if (!solrDocument.containsKey(FacetConstants.FIELD_LANDINGPAGE)) { |
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278 | |
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279 | /* Since there are no links to be shown, make both labels defined in |
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280 | * the page invisible |
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281 | */ |
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282 | oneLandingPageText.setVisible(false); |
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283 | moreLandingPagesText.setVisible(false); |
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284 | } else { |
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285 | // make one of the two labels invisible |
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286 | |
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287 | Collection<Object> landingPages = |
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288 | solrDocument.getFieldValues(FacetConstants.FIELD_LANDINGPAGE); |
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289 | if (landingPages.size() > 1) { |
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290 | |
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291 | // the list will contain more than one landing page link |
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292 | oneLandingPageText.setVisible(false); |
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293 | moreLandingPagesText.setVisible(true); |
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294 | } else { |
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295 | // the list will contain exactly one landing page link. |
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296 | oneLandingPageText.setVisible(true); |
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297 | moreLandingPagesText.setVisible(false); |
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298 | } |
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299 | |
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300 | // generate the list of links |
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301 | for (Iterator<Object> it = landingPages.iterator(); it.hasNext();) { |
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302 | final Object landingPage; |
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303 | landingPage = it.next(); |
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304 | |
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305 | // add a link to the list |
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306 | repeatingView.add( |
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307 | new AjaxLazyLoadPanel(repeatingView.newChildId()) { |
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308 | @Override |
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309 | public Component getLazyLoadComponent(String markupId) { |
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310 | String landingPageLink; |
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311 | landingPageLink = landingPage.toString(); |
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312 | |
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313 | // create a panel for the link |
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314 | return new LandingPageLinkPanel(markupId, |
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315 | landingPage.toString()); |
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316 | } |
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317 | }); |
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318 | } |
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319 | } |
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320 | } |
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321 | |
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322 | /** |
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323 | * Add search page links to the result page. |
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324 | * |
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325 | * @param solrDocument the document to get the links from |
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326 | */ |
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327 | private void addSearchPageLinks(SolrDocument solrDocument) { |
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328 | |
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329 | Label oneSearchPageText; |
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330 | oneSearchPageText = new Label("oneSearchPage", |
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331 | new ResourceModel(Resources.SEARCH_PAGE).getObject() + ":"); |
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332 | this.add(oneSearchPageText); |
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333 | |
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334 | Label moreSearchPagesText; |
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335 | moreSearchPagesText = new Label("moreSearchPages", |
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336 | new ResourceModel(Resources.SEARCH_PAGES).getObject() + ":"); |
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337 | this.add(moreSearchPagesText); |
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338 | |
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339 | RepeatingView repeatingView = new RepeatingView("searchPageList"); |
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340 | add(repeatingView); |
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341 | |
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342 | /* |
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343 | * Depending on the number of links to be shown, at most one of the |
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344 | * labels in the accompanying HTML page that is subject to Wicket is |
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345 | * made visible. |
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346 | */ |
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347 | if (!solrDocument.containsKey(FacetConstants.FIELD_SEARCHPAGE)) { |
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348 | |
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349 | /* Since there are no links to be shown, make both labels defined in |
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350 | * the page invisible |
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351 | */ |
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352 | oneSearchPageText.setVisible(false); |
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353 | moreSearchPagesText.setVisible(false); |
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354 | } else { |
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355 | // make one of the two labels invisible |
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356 | |
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357 | Collection<Object> searchPages = |
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358 | solrDocument.getFieldValues(FacetConstants.FIELD_SEARCHPAGE); |
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359 | if (searchPages.size() > 1) { |
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360 | |
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361 | // the list will contain more than one landing page link |
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362 | oneSearchPageText.setVisible(false); |
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363 | moreSearchPagesText.setVisible(true); |
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364 | } else { |
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365 | // the list will contain exactly one landing page link. |
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366 | oneSearchPageText.setVisible(true); |
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367 | moreSearchPagesText.setVisible(false); |
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368 | } |
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369 | |
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370 | // generate the list of links |
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371 | for (Iterator<Object> it = searchPages.iterator(); it.hasNext();) { |
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372 | final Object searchPage; |
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373 | searchPage = it.next(); |
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374 | |
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375 | // add a link to the list |
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376 | repeatingView.add( |
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377 | new AjaxLazyLoadPanel(repeatingView.newChildId()) { |
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378 | @Override |
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379 | public Component getLazyLoadComponent(String markupId) { |
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380 | String searchPageLink; |
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381 | searchPageLink = searchPage.toString(); |
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382 | |
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383 | // create a panel for the link |
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384 | return new SearchPageLinkPanel(markupId, |
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385 | searchPage.toString()); |
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386 | } |
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387 | }); |
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388 | } |
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389 | } |
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390 | } |
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391 | |
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392 | /** |
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393 | * Add links to resources other than search or landing pages to the result |
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394 | * page. |
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395 | * |
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396 | * @param solrDocument the document to get the links from |
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397 | */ |
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398 | private void addResourceLinks(SolrDocument solrDocument) { |
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399 | RepeatingView repeatingView = new RepeatingView("resourceList"); |
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400 | add(repeatingView); |
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401 | if (solrDocument.containsKey(FacetConstants.FIELD_RESOURCE)) { |
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402 | Collection<Object> resources = solrDocument.getFieldValues(FacetConstants.FIELD_RESOURCE); |
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403 | if (resources.size() > 1) { |
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404 | repeatingView.add(new Label(repeatingView.newChildId(), new ResourceModel(Resources.RESOURCE_PL))); |
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405 | } else { |
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406 | repeatingView.add(new Label(repeatingView.newChildId(), new ResourceModel(Resources.RESOURCE))); |
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407 | } |
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408 | for (Object resource : resources) { |
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409 | String[] split = resource.toString().split(Pattern.quote(FacetConstants.FIELD_RESOURCE_SPLIT_CHAR), 2); |
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410 | final String mimeType = split[0]; |
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411 | final String resourceLink = split[1]; |
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412 | repeatingView.add(new AjaxLazyLoadPanel(repeatingView.newChildId()) { |
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413 | |
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414 | @Override |
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415 | public Component getLazyLoadComponent(String markupId) { |
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416 | return new ResourceLinkPanel(markupId, mimeType, resourceLink); |
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417 | } |
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418 | }); |
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419 | } |
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420 | } else { |
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421 | repeatingView.add(new Label(repeatingView.newChildId(), new ResourceModel(Resources.NO_RESOURCE_FOUND))); |
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422 | } |
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423 | } |
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424 | |
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425 | private void addFeedbackLink(final PageParameters parameters) { |
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426 | String thisURL = RequestUtils.toAbsolutePath(RequestCycle.get().urlFor(ShowResultPage.class, parameters).toString()); |
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427 | try { |
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428 | thisURL = URLEncoder.encode(thisURL,"UTF-8"); |
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429 | } catch (UnsupportedEncodingException e) { |
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430 | LOG.error(e.toString()); |
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431 | } |
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432 | |
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433 | // Image resourceImg = new Image("feedbackImage", FEEDBACK_IMAGE.getResource()); |
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434 | // String title = "Report an error"; |
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435 | // resourceImg.add(new SimpleAttributeModifier("title", title)); |
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436 | // resourceImg.add(new SimpleAttributeModifier("alt", title)); |
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437 | String href = getHref(feedbackfromURL+thisURL); |
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438 | String name = feedbackfromURL+thisURL; |
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439 | ExternalLink link = new ExternalLink("feedbackLink", href, "found an error?"); |
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440 | // link.add(resourceImg); |
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441 | // add(new Label("feedbackLabel", "Found an error?")); |
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442 | add(link); |
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443 | } |
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444 | |
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445 | public static BookmarkablePageLink<ShowResultPage> createBookMarkableLink(String linkId, SearchPageQuery query, String docId, ThemedSession session) { |
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446 | PageParameters pageParameters = query.getPageParameters(); |
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447 | pageParameters.put(ShowResultPage.PARAM_DOC_ID, WicketURLEncoder.QUERY_INSTANCE.encode(docId)); |
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448 | |
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449 | // webApp.reflectPersistentParameters(pageParameters); |
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450 | // instead of this: pass page parameters back to the session |
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451 | session.reflectPersistentParameters(pageParameters); |
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452 | |
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453 | BookmarkablePageLink<ShowResultPage> docLink = new BookmarkablePageLink<ShowResultPage>(linkId, ShowResultPage.class, |
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454 | pageParameters); |
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455 | return docLink; |
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456 | } |
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457 | |
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458 | /** |
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459 | * Add contentSearch form (FCS) |
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460 | * @param solrDocument |
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461 | */ |
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462 | private void addSearchServiceForm(final SolrDocument solrDocument) { |
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463 | final WebMarkupContainer contentSearchContainer = new WebMarkupContainer("contentSearch"); |
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464 | add(contentSearchContainer); |
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465 | |
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466 | if (solrDocument.containsKey(FacetConstants.FIELD_SEARCH_SERVICE)) { |
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467 | try { |
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468 | // building map (CQL endpoint -> List with resource ID) |
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469 | HashMap<String, List<String>> aggregrationContextMap = new HashMap<String, List<String>>(); |
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470 | List<String> idList = new ArrayList<String>(); |
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471 | idList.add(solrDocument.getFirstValue(FacetConstants.FIELD_ID).toString()); |
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472 | aggregrationContextMap.put(solrDocument.getFirstValue(FacetConstants.FIELD_SEARCH_SERVICE).toString(), idList); |
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473 | Label contentSearchLabel = new Label("contentSearchForm", HtmlFormCreator.getContentSearchForm(aggregrationContextMap, "Plain text search via Federated Content Search")); |
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474 | contentSearchLabel.setEscapeModelStrings(false); |
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475 | contentSearchContainer.add(contentSearchLabel); |
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476 | } catch (UnsupportedEncodingException uee) { |
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477 | contentSearchContainer.setVisible(false); |
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478 | } |
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479 | } else { |
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480 | contentSearchContainer.setVisible(false); |
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481 | } |
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482 | } |
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483 | |
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484 | /** |
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485 | * Add complete CMDI view |
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486 | * @param solrDocument |
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487 | */ |
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488 | private void addCompleteCmdiView(final SolrDocument solrDocument) { |
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489 | StringWriter strWriter = new StringWriter(); |
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490 | |
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491 | final Processor proc = new Processor(false); |
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492 | final XsltCompiler comp = proc.newXsltCompiler(); |
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493 | |
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494 | try { |
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495 | final XsltExecutable exp = comp.compile(new StreamSource(xslFile.getFile())); |
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496 | final XdmNode source = proc.newDocumentBuilder().build( |
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497 | new StreamSource(new InputStreamReader(new URL(solrDocument.getFirstValue(FacetConstants.FIELD_COMPLETE_METADATA).toString()).openStream()))); |
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498 | final Serializer out = new Serializer(); |
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499 | out.setOutputProperty(Serializer.Property.METHOD, "html"); |
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500 | out.setOutputProperty(Serializer.Property.INDENT, "yes"); |
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501 | out.setOutputProperty(Serializer.Property.ENCODING, "UTF-8"); |
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502 | out.setOutputWriter(strWriter); |
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503 | final XsltTransformer trans = exp.load(); |
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504 | |
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505 | trans.setInitialContextNode(source); |
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506 | trans.setDestination(out); |
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507 | trans.transform(); |
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508 | } catch (Exception e) { |
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509 | LOG.error("Couldn't create CMDI metadata: " + e.getMessage()); |
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510 | strWriter = new StringWriter().append("<b>Could not load complete CMDI metadata</b>"); |
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511 | } |
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512 | |
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513 | Label completeCmdiLabel = new Label("completeCmdi", strWriter.toString()); |
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514 | completeCmdiLabel.setEscapeModelStrings(false); |
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515 | add(completeCmdiLabel); |
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516 | |
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517 | // remove complete CMDI view on page load |
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518 | add(new AbstractBehavior() { |
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519 | private static final long serialVersionUID = 1865219352602175954L; |
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520 | |
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521 | @Override |
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522 | public void renderHead(IHeaderResponse response) { |
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523 | super.renderHead(response); |
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524 | response.renderOnLoadJavascript("toogleDiv('completeCmdi', 'toogleLink')"); |
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525 | } |
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526 | }); |
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527 | } |
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528 | } |
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