NIHVIVO-2650 Added a field THUMBNAIL_URL that contains the location of the thumbnail of an individual.

solr/exampleSolr/conf/schema.xml

@@ -578,6 +578,9 @@
 <field name="modType" type="ignored"/>
 <field name="JCLASS" type="ignored"/>
 
+<!-- field for storing locations of thumbnails -->
+<field name="THUMBNAIL_URL" type="string" indexed="false" stored="true"/>
+
 <!-- Copy nameLowercase to sortable field. -->
 <copyField source="nameLowercase" dest="nameLowercaseSingleValued" />
    

webapp/src/edu/cornell/mannlib/vitro/webapp/search/VitroSearchTermNames.java

@@ -67,4 +67,7 @@ public class VitroSearchTermNames {
     /** adding phonetic field **/
     public static final String ALLTEXT_PHONETIC = "ALLTEXT_PHONETIC";
     public static final String NAME_PHONETIC = "NAME_PHONETIC";
+    
+    /** download url location for thumbnail */
+	public static final String THUMBNAIL_URL = "THUMBNAIL_URL";
 }

webapp/src/edu/cornell/mannlib/vitro/webapp/search/solr/SolrSetup.java

@@ -85,6 +85,7 @@ public class SolrSetup implements javax.servlet.ServletContextListener{
             modifiers.add(new CalculateParameters(dataset));
             modifiers.add(new ContextNodeFields(jenaOntModel));
             modifiers.add(new NameBoost());
+            modifiers.add(new ThumbnailImageURL(jenaOntModel));
             
             // setup probhibited froms earch based on N3 files in the
             // directory WEB-INF/ontologies/search

webapp/src/edu/cornell/mannlib/vitro/webapp/search/solr/ThumbnailImageURL.java

@@ -0,0 +1,112 @@
+/* $This file is distributed under the terms of the license in /doc/license.txt$ */
+
+package edu.cornell.mannlib.vitro.webapp.search.solr;
+
+import java.util.Iterator;
+
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
+import org.apache.solr.common.SolrInputDocument;
+import org.apache.solr.common.SolrInputField;
+
+import com.hp.hpl.jena.query.Query;
+import com.hp.hpl.jena.query.QueryExecution;
+import com.hp.hpl.jena.query.QueryExecutionFactory;
+import com.hp.hpl.jena.query.QueryFactory;
+import com.hp.hpl.jena.query.QuerySolution;
+import com.hp.hpl.jena.query.QuerySolutionMap;
+import com.hp.hpl.jena.query.ResultSet;
+import com.hp.hpl.jena.query.Syntax;
+import com.hp.hpl.jena.rdf.model.Model;
+import com.hp.hpl.jena.rdf.model.RDFNode;
+import com.hp.hpl.jena.rdf.model.Resource;
+import com.hp.hpl.jena.rdf.model.ResourceFactory;
+import com.hp.hpl.jena.shared.Lock;
+
+import edu.cornell.mannlib.vitro.webapp.beans.Individual;
+import edu.cornell.mannlib.vitro.webapp.search.VitroSearchTermNames;
+
+public class ThumbnailImageURL implements DocumentModifier {
+	
+    private static final String prefix = "prefix owl: <http://www.w3.org/2002/07/owl#> "
+        + " prefix vitroDisplay: <http://vitro.mannlib.cornell.edu/ontologies/display/1.1#>  "
+        + " prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>  "
+        + " prefix core: <http://vivoweb.org/ontology/core#>  "
+        + " prefix foaf: <http://xmlns.com/foaf/0.1/> "
+        + " prefix rdfs:  <http://www.w3.org/2000/01/rdf-schema#> "
+        + " prefix localNav: <http://vitro.mannlib.cornell.edu/ns/localnav#>  "
+        + " prefix bibo: <http://purl.org/ontology/bibo/>  ";
+    
+    private static final String query = prefix + 
+    
+    " SELECT (str(?thumbnailLocationURL) as ?ThumbnailLocationURL) WHERE { " +
+    " ?uri <http://vitro.mannlib.cornell.edu/ns/vitro/public#mainImage> ?a . " +
+    " ?a <http://vitro.mannlib.cornell.edu/ns/vitro/public#downloadLocation> ?b . " +
+    " ?b <http://vitro.mannlib.cornell.edu/ns/vitro/public#directDownloadUrl> ?thumbnailLocationURL . } ";
+    
+    private Model model;
+    private Log log = LogFactory.getLog(ThumbnailImageURL.class);
+    private boolean shutdown = false;
+    
+	static VitroSearchTermNames term = new VitroSearchTermNames();
+	String fieldForThumbnailURL = term.THUMBNAIL_URL;
+	
+	
+	public ThumbnailImageURL(Model model){
+		this.model = model;
+	}
+	
+	@Override
+	public void modifyDocument(Individual individual, SolrInputDocument doc,
+			StringBuffer addUri) throws SkipIndividualException {
+		
+		//add a field for storing the location of thumbnail for the individual.
+		doc.addField(fieldForThumbnailURL, runQueryForThumbnailLocation(individual));
+	
+	}
+
+	private String runQueryForThumbnailLocation(Individual individual) {
+		
+		StringBuffer result = new StringBuffer();
+		QuerySolutionMap initialBinding = new QuerySolutionMap();
+		Resource uriResource = ResourceFactory.createResource(individual.getURI());
+		initialBinding.add("uri", uriResource);
+		
+		Query sparqlQuery = QueryFactory.create(query, Syntax.syntaxARQ);
+        model.getLock().enterCriticalSection(Lock.READ);
+        try{
+            QueryExecution qExec = QueryExecutionFactory.create(sparqlQuery, model, initialBinding);
+            try{                
+                ResultSet results = qExec.execSelect();                
+                while(results.hasNext()){                    
+                    QuerySolution soln = results.nextSolution();                                   
+                    Iterator<String> iter =  soln.varNames() ;
+                    while( iter.hasNext()){
+                        String name = iter.next();
+                        RDFNode node = soln.get( name );
+                        if( node != null ){
+                            result.append(" " + node.toString());
+                        }else{
+                            log.info(name + " is null");
+                        }                        
+                    }
+                }
+            }catch(Throwable t){
+                if( ! shutdown )
+                    log.error(t,t);
+            } finally{
+                qExec.close();
+            } 
+        }finally{
+            model.getLock().leaveCriticalSection();
+        }
+		
+		return result.toString();
+	}
+
+	@Override
+	public void shutdown() {
+		shutdown = true;
+	}
+
+}