VIVO-140 Modify client code to get language-aware extract from VClassGroupCache

webapp/src/edu/cornell/mannlib/vitro/webapp/controller/freemarker/BrowseController.java

@@ -17,6 +17,7 @@ import edu.cornell.mannlib.vitro.webapp.beans.VClassGroup;
 import edu.cornell.mannlib.vitro.webapp.controller.VitroRequest;
 import edu.cornell.mannlib.vitro.webapp.controller.freemarker.responsevalues.ResponseValues;
 import edu.cornell.mannlib.vitro.webapp.controller.freemarker.responsevalues.TemplateResponseValues;
+import edu.cornell.mannlib.vitro.webapp.dao.VClassGroupsForRequest;
 import edu.cornell.mannlib.vitro.webapp.dao.jena.VClassGroupCache;
 import edu.cornell.mannlib.vitro.webapp.web.templatemodels.VClassGroupTemplateModel;
 
@@ -46,7 +47,6 @@ public class BrowseController extends FreemarkerHttpServlet {
     protected ResponseValues processRequest(VitroRequest vreq) {
         
         Map<String, Object> body = new HashMap<String, Object>();
-        String message = null;
         String templateName = TEMPLATE_DEFAULT;
                        
         if ( vreq.getParameter("clearcache") != null ) {
@@ -57,25 +57,13 @@ public class BrowseController extends FreemarkerHttpServlet {
         }
         
         List<VClassGroup> groups = null;
-        VClassGroupCache vcgc = VClassGroupCache.getVClassGroupCache(getServletContext());
+        VClassGroupsForRequest vcgc = VClassGroupCache.getVClassGroups(vreq);
-        if ( vcgc == null ) {
-            log.error("Could not get VClassGroupCache");
-            message = "The system is not configured correctly. Please check your logs for error messages.";
-        } else {
         groups =vcgc.getGroups();
         List<VClassGroupTemplateModel> vcgroups = new ArrayList<VClassGroupTemplateModel>(groups.size());
         for (VClassGroup group : groups) {
             vcgroups.add(new VClassGroupTemplateModel(group));
         }
         body.put("classGroups", vcgroups);
-        }
-        
-        if (message != null) {
-            body.put("message", message);
-            templateName = Template.TITLED_MESSAGE.toString();
-        }
-        
-
         
         return new TemplateResponseValues(templateName, body);
     }

webapp/src/edu/cornell/mannlib/vitro/webapp/controller/json/GetVClassesForVClassGroup.java

@@ -11,6 +11,7 @@ import org.json.JSONObject;
 import edu.cornell.mannlib.vitro.webapp.beans.VClass;
 import edu.cornell.mannlib.vitro.webapp.beans.VClassGroup;
 import edu.cornell.mannlib.vitro.webapp.controller.VitroRequest;
+import edu.cornell.mannlib.vitro.webapp.dao.VClassGroupsForRequest;
 import edu.cornell.mannlib.vitro.webapp.dao.jena.VClassGroupCache;
 
 /**
@@ -32,7 +33,7 @@ public class GetVClassesForVClassGroup extends JsonObjectProducer {
             throw new Exception("no URI passed for classgroupUri");
         }
         
-        VClassGroupCache vcgc = VClassGroupCache.getVClassGroupCache(ctx);
+        VClassGroupsForRequest vcgc = VClassGroupCache.getVClassGroups(vreq);
         VClassGroup vcg = vcgc.getGroup(vcgUri);
         if( vcg == null ){
             throw new Exception("Could not find vclassgroup: " + vcgUri);

webapp/src/edu/cornell/mannlib/vitro/webapp/edit/n3editing/configuration/generators/ManagePageGenerator.java

@@ -18,8 +18,6 @@ import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
 
 import com.hp.hpl.jena.ontology.OntModel;
-import com.hp.hpl.jena.rdf.model.Literal;
-import  com.hp.hpl.jena.rdf.model.Resource;
 import com.hp.hpl.jena.query.Query;
 import com.hp.hpl.jena.query.QueryExecution;
 import com.hp.hpl.jena.query.QueryExecutionFactory;
@@ -27,6 +25,8 @@ 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.rdf.model.Literal;
+import com.hp.hpl.jena.rdf.model.Resource;
 import com.hp.hpl.jena.rdf.model.ResourceFactory;
 import com.hp.hpl.jena.vocabulary.XSD;
 
@@ -508,7 +508,7 @@ private String getExistingIsSelfContainedTemplateQuery() {
 	private void addRequiredPageData(VitroRequest vreq, Map<String, Object> data) {
      	MenuManagementDataUtils.includeRequiredSystemData(vreq.getSession().getServletContext(), data);
     	data.put("classGroup", new ArrayList<String>());
-    	data.put("classGroups", DataGetterUtils.getClassGroups(vreq.getSession().getServletContext()));
+    	data.put("classGroups", DataGetterUtils.getClassGroups(vreq));
 	}
 	
 	private void addExistingPageData(VitroRequest vreq, Map<String, Object> data) {

webapp/src/edu/cornell/mannlib/vitro/webapp/utils/dataGetter/BrowseDataGetter.java

@@ -25,6 +25,7 @@ import edu.cornell.mannlib.vitro.webapp.controller.VitroRequest;
 import edu.cornell.mannlib.vitro.webapp.controller.freemarker.UrlBuilder;
 import edu.cornell.mannlib.vitro.webapp.controller.json.JsonServlet;
 import edu.cornell.mannlib.vitro.webapp.dao.DisplayVocabulary;
+import edu.cornell.mannlib.vitro.webapp.dao.VClassGroupsForRequest;
 import edu.cornell.mannlib.vitro.webapp.dao.jena.VClassGroupCache;
 import edu.cornell.mannlib.vitro.webapp.utils.JsonToFmModel;
 import edu.cornell.mannlib.vitro.webapp.web.templatemodels.VClassGroupTemplateModel;
@@ -120,7 +121,7 @@ public class BrowseDataGetter extends DataGetterBase implements DataGetter {
     private Map<String,Object> getCommonValues( ServletContext context, VitroRequest vreq){
         Map<String,Object> values = new HashMap<String,Object>();              
                 
-        VClassGroupCache vcgc = VClassGroupCache.getVClassGroupCache(context);
+        VClassGroupsForRequest vcgc = VClassGroupCache.getVClassGroups(vreq);
         List<VClassGroup> cgList = vcgc.getGroups();        
         LinkedList<VClassGroupTemplateModel> cgtmList = new LinkedList<VClassGroupTemplateModel>();
         for( VClassGroup classGroup : cgList){
@@ -194,7 +195,7 @@ public class BrowseDataGetter extends DataGetterBase implements DataGetter {
         String vcgUri = getParam(Mode.CLASS_GROUP, request, params);
         VitroRequest vreq = new VitroRequest(request);        
         
-        VClassGroupCache vcgc = VClassGroupCache.getVClassGroupCache(context);
+        VClassGroupsForRequest vcgc = VClassGroupCache.getVClassGroups(request);
         VClassGroup vcg = vcgc.getGroup(vcgUri);        
         
         ArrayList<VClassTemplateModel> classes = new ArrayList<VClassTemplateModel>(vcg.size());

webapp/src/edu/cornell/mannlib/vitro/webapp/utils/dataGetter/ClassGroupPageData.java

@@ -19,6 +19,7 @@ import edu.cornell.mannlib.vitro.webapp.beans.VClassGroup;
 import edu.cornell.mannlib.vitro.webapp.controller.VitroRequest;
 import edu.cornell.mannlib.vitro.webapp.controller.freemarker.UrlBuilder;
 import edu.cornell.mannlib.vitro.webapp.dao.DisplayVocabulary;
+import edu.cornell.mannlib.vitro.webapp.dao.VClassGroupsForRequest;
 import edu.cornell.mannlib.vitro.webapp.dao.jena.VClassGroupCache;
 import edu.cornell.mannlib.vitro.webapp.web.templatemodels.VClassGroupTemplateModel;
 
@@ -65,7 +66,7 @@ public class ClassGroupPageData extends DataGetterBase implements DataGetter{
     	  HashMap<String, Object> data = new HashMap<String,Object>();
           data.put("classGroupUri", this.classGroupUri);
 
-          VClassGroupCache vcgc = VClassGroupCache.getVClassGroupCache(context);
+          VClassGroupsForRequest vcgc = VClassGroupCache.getVClassGroups(vreq);
           List<VClassGroup> vcgList = vcgc.getGroups();
           VClassGroup group = null;
           for( VClassGroup vcg : vcgList){
@@ -119,7 +120,7 @@ public class ClassGroupPageData extends DataGetterBase implements DataGetter{
     
     public static VClassGroupTemplateModel getClassGroup(String classGroupUri, ServletContext context, VitroRequest vreq){
         
-        VClassGroupCache vcgc = VClassGroupCache.getVClassGroupCache(context);
+        VClassGroupsForRequest vcgc = VClassGroupCache.getVClassGroups(vreq);
         List<VClassGroup> vcgList = vcgc.getGroups();
         VClassGroup group = null;
         for( VClassGroup vcg : vcgList){

webapp/src/edu/cornell/mannlib/vitro/webapp/utils/dataGetter/DataGetterUtils.java

@@ -12,6 +12,7 @@ import java.util.List;
 import java.util.Map;
 
 import javax.servlet.ServletContext;
+import javax.servlet.http.HttpServletRequest;
 
 import org.apache.commons.lang.StringUtils;
 import org.apache.commons.logging.Log;
@@ -45,6 +46,7 @@ import edu.cornell.mannlib.vitro.webapp.controller.freemarker.IndividualListCont
 import edu.cornell.mannlib.vitro.webapp.controller.freemarker.UrlBuilder;
 import edu.cornell.mannlib.vitro.webapp.controller.json.JsonServlet;
 import edu.cornell.mannlib.vitro.webapp.dao.DisplayVocabulary;
+import edu.cornell.mannlib.vitro.webapp.dao.VClassGroupsForRequest;
 import edu.cornell.mannlib.vitro.webapp.dao.VitroVocabulary;
 import edu.cornell.mannlib.vitro.webapp.dao.WebappDaoFactory;
 import edu.cornell.mannlib.vitro.webapp.dao.jena.VClassGroupCache;
@@ -102,7 +104,7 @@ public class DataGetterUtils {
 	 * May return an empty list, but will not return null.
 	 */
 	private static List<DataGetter> dataGettersForURIs(VitroRequest vreq, Model displayModel, List<String> dgUris)
-			throws InstantiationException, IllegalAccessException, ClassNotFoundException, InvocationTargetException, NoSuchMethodException {
+			throws InstantiationException, IllegalAccessException, ClassNotFoundException, InvocationTargetException {
 		List<DataGetter> dgList = new ArrayList<DataGetter>();
 		for( String dgURI: dgUris){
 		    DataGetter dg =dataGetterForURI(vreq, displayModel, dgURI) ;
@@ -332,7 +334,7 @@ public class DataGetterUtils {
                 @SuppressWarnings("unchecked")
                 Enumeration<String> e = vreq.getParameterNames();
                 while(e.hasMoreElements()){
-                    String name = (String)e.nextElement();
+                    String name = e.nextElement();
                     log.debug("parameter: " + name);
                     for( String value : vreq.getParameterValues(name) ){
                         log.debug("value for " + name + ": '" + value + "'");
@@ -550,9 +552,9 @@ public class DataGetterUtils {
     //Get All VClass Groups information
     //Used within menu management and processing
     //TODO: Check if more appropriate location possible
-    public static List<HashMap<String, String>> getClassGroups(ServletContext context) {
+    public static List<HashMap<String, String>> getClassGroups(HttpServletRequest req) {
     	//Wanted this to be 
-    	VClassGroupCache vcgc = VClassGroupCache.getVClassGroupCache(context);
+    	VClassGroupsForRequest vcgc = VClassGroupCache.getVClassGroups(req);
         List<VClassGroup> vcgList = vcgc.getGroups();
         //For now encoding as hashmap with label and URI as trying to retrieve class group
         //results in errors for some reason
@@ -570,11 +572,11 @@ public class DataGetterUtils {
    //TODO: Check whether this needs to be put here or elsewhere, as this is data getter specific
     //with respect to class groups
   //Need to use VClassGroupCache to retrieve class group information - this is the information returned from "for class group"
-	public static void getClassGroupForDataGetter(ServletContext context, Map<String, Object> pageData, Map<String, Object> templateData) {
+	public static void getClassGroupForDataGetter(HttpServletRequest req, Map<String, Object> pageData, Map<String, Object> templateData) {
     	//Get the class group from VClassGroup, this is the same as the class group for the class group page data getter
 		//and the associated class group (not custom) for individuals datagetter
 		String classGroupUri = (String) pageData.get("classGroupUri");
-		VClassGroupCache vcgc = VClassGroupCache.getVClassGroupCache(context);
+		VClassGroupsForRequest vcgc = VClassGroupCache.getVClassGroups(req);
     	VClassGroup group = vcgc.getGroup(classGroupUri);
 
 		templateData.put("classGroup", group);

webapp/src/edu/cornell/mannlib/vitro/webapp/utils/dataGetter/IndividualsForClassesDataGetter.java

@@ -30,6 +30,7 @@ import edu.cornell.mannlib.vitro.webapp.beans.VClassGroup;
 import edu.cornell.mannlib.vitro.webapp.controller.VitroRequest;
 import edu.cornell.mannlib.vitro.webapp.controller.freemarker.UrlBuilder;
 import edu.cornell.mannlib.vitro.webapp.dao.DisplayVocabulary;
+import edu.cornell.mannlib.vitro.webapp.dao.VClassGroupsForRequest;
 import edu.cornell.mannlib.vitro.webapp.dao.VitroVocabulary;
 import edu.cornell.mannlib.vitro.webapp.dao.jena.VClassGroupCache;
 import edu.cornell.mannlib.vitro.webapp.web.templatemodels.VClassGroupTemplateModel;
@@ -227,7 +228,7 @@ public class IndividualsForClassesDataGetter extends DataGetterBase implements D
     	log.debug("Processing classes that will be displayed");
     	List<VClass> vClasses = new ArrayList<VClass>();
   
-    	VClassGroupCache vcgc = VClassGroupCache.getVClassGroupCache(context);
+    	VClassGroupsForRequest vcgc = VClassGroupCache.getVClassGroups(vreq);
     	for(String classUri: classes) {
     		//Retrieve vclass from cache to get the count
     		VClass vclass = vcgc.getCachedVClass(classUri);
@@ -262,7 +263,7 @@ public class IndividualsForClassesDataGetter extends DataGetterBase implements D
 	    	List<VClass> restrictVClasses = new ArrayList<VClass>();
 	    	
 	    	List<String> urlEncodedRestrictClasses = new ArrayList<String>();
-	    	VClassGroupCache vcgc = VClassGroupCache.getVClassGroupCache(context);
+	    	VClassGroupsForRequest vcgc = VClassGroupCache.getVClassGroups(vreq);
 
 	    	if(restrictClasses.size() > 0) {
 	    		//classes for restriction are not displayed so don't need to include their class individual counts
@@ -306,7 +307,7 @@ public class IndividualsForClassesDataGetter extends DataGetterBase implements D
     
     public static VClassGroupTemplateModel getClassGroup(String classGroupUri, ServletContext context, VitroRequest vreq){
         
-        VClassGroupCache vcgc = VClassGroupCache.getVClassGroupCache(context);
+        VClassGroupsForRequest vcgc = VClassGroupCache.getVClassGroups(vreq);
         List<VClassGroup> vcgList = vcgc.getGroups();
         VClassGroup group = null;
         for( VClassGroup vcg : vcgList){

webapp/src/edu/cornell/mannlib/vitro/webapp/utils/menuManagement/ProcessClassGroup.java

@@ -4,7 +4,7 @@ package edu.cornell.mannlib.vitro.webapp.utils.menuManagement;
 
 import java.util.Map;
 
-import javax.servlet.ServletContext;
+import javax.servlet.http.HttpServletRequest;
 
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
@@ -28,18 +28,20 @@ public class ProcessClassGroup implements ProcessDataGetter{
 
   //template data represents what needs to be modified and returned to template
 	//page data is data retrieved from data getter
-    public void populateTemplate(ServletContext context, Map<String, Object> pageData, Map<String, Object> templateData) {
+    @Override
+	public void populateTemplate(HttpServletRequest req, Map<String, Object> pageData, Map<String, Object> templateData) {
 		//This is a class group page so 
 		templateData.put("isClassGroupPage", true);
 		templateData.put("includeAllClasses", true);
 		
 		//Get the class group from VClassGroup
-		DataGetterUtils.getClassGroupForDataGetter(context, pageData, templateData);
+		DataGetterUtils.getClassGroupForDataGetter(req, pageData, templateData);
 	}
     
     
     //Process submission
     
+    @Override
 	public  Model processSubmission(VitroRequest vreq, Resource dataGetterResource) {
 		Model dgModel = ModelFactory.createDefaultModel();
 		String dataGetterTypeUri = DataGetterUtils.generateDataGetterTypeURI(ClassGroupPageData.class.getName());

webapp/src/edu/cornell/mannlib/vitro/webapp/utils/menuManagement/ProcessDataGetter.java

@@ -4,18 +4,15 @@ package edu.cornell.mannlib.vitro.webapp.utils.menuManagement;
 
 import java.util.Map;
 
-import javax.servlet.ServletContext;
+import javax.servlet.http.HttpServletRequest;
-
-import edu.cornell.mannlib.vitro.webapp.controller.VitroRequest;
-import edu.cornell.mannlib.vitro.webapp.controller.freemarker.UrlBuilder;
-
-import org.json.JSONObject;
 
 import com.hp.hpl.jena.rdf.model.Model;
 import com.hp.hpl.jena.rdf.model.Resource;
 
+import edu.cornell.mannlib.vitro.webapp.controller.VitroRequest;
+
 public interface ProcessDataGetter{
-    public void populateTemplate(ServletContext context, Map<String, Object> pageData, Map<String, Object> templateData);
+    public void populateTemplate(HttpServletRequest req, Map<String, Object> pageData, Map<String, Object> templateData);
 
     public  Model processSubmission(VitroRequest vreq, Resource dataGetterResource);
     

webapp/src/edu/cornell/mannlib/vitro/webapp/utils/menuManagement/ProcessIndividualsForClasses.java

@@ -6,7 +6,7 @@ import java.util.ArrayList;
 import java.util.List;
 import java.util.Map;
 
-import javax.servlet.ServletContext;
+import javax.servlet.http.HttpServletRequest;
 
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
@@ -34,12 +34,13 @@ public class ProcessIndividualsForClasses implements ProcessDataGetter {
    /**Retrieve and populate**/
     
   //Based on institutional internal page and not general individualsForClasses
-    public void populateTemplate(ServletContext context, Map<String, Object> pageData, Map<String, Object> templateData) {
+    @Override
+	public void populateTemplate(HttpServletRequest req, Map<String, Object> pageData, Map<String, Object> templateData) {
 		initTemplateData(templateData);
 		populateIncludedClasses(pageData, templateData);
 		populateRestrictedClasses(pageData, templateData);
 		//Also save the class group for display
-		DataGetterUtils.getClassGroupForDataGetter(context, pageData, templateData); 
+		DataGetterUtils.getClassGroupForDataGetter(req, pageData, templateData); 
 
 	}
     
@@ -76,6 +77,7 @@ public class ProcessIndividualsForClasses implements ProcessDataGetter {
 	public boolean useProcessor(VitroRequest vreq) {
 		return(!allClassesSelected(vreq));
 	}
+	@Override
 	public  Model processSubmission(VitroRequest vreq, Resource dataGetterResource) {
 		String[] selectedClasses = vreq.getParameterValues("classInClassGroup");
 		String dataGetterTypeUri = DataGetterUtils.generateDataGetterTypeURI(IndividualsForClassesDataGetter.class.getName());

webapp/src/edu/cornell/mannlib/vitro/webapp/utils/menuManagement/SelectDataGetterUtils.java

@@ -30,7 +30,7 @@ public class SelectDataGetterUtils {
 	public static void processAndRetrieveData(VitroRequest vreq, ServletContext context, Map<String, Object> pageData, String dataGetterClass, Map<String, Object> templateData) {
 		//The type of the data getter will show how to process the data from the data getter
 		ProcessDataGetter processor = selectProcessor(dataGetterClass);
-		processor.populateTemplate(context, pageData, templateData);
+		processor.populateTemplate(vreq, pageData, templateData);
 	}
 	
 	//This will be different in VIVO than in VITRO

webapp/src/edu/cornell/mannlib/vitro/webapp/utils/pageDataGetter/BrowseDataGetter.java

@@ -23,6 +23,7 @@ import edu.cornell.mannlib.vitro.webapp.controller.VitroRequest;
 import edu.cornell.mannlib.vitro.webapp.controller.freemarker.UrlBuilder;
 import edu.cornell.mannlib.vitro.webapp.controller.json.JsonServlet;
 import edu.cornell.mannlib.vitro.webapp.dao.DisplayVocabulary;
+import edu.cornell.mannlib.vitro.webapp.dao.VClassGroupsForRequest;
 import edu.cornell.mannlib.vitro.webapp.dao.jena.VClassGroupCache;
 import edu.cornell.mannlib.vitro.webapp.utils.JsonToFmModel;
 import edu.cornell.mannlib.vitro.webapp.web.templatemodels.VClassGroupTemplateModel;
@@ -63,6 +64,7 @@ public class BrowseDataGetter implements PageDataGetter {
     }
     
   //Get data servuice
+    @Override
 	public String getDataServiceUrl() {
     	return UrlBuilder.getUrl("/dataservice?getSolrIndividualsByVClass=1&vclassId=");
     }
@@ -94,7 +96,7 @@ public class BrowseDataGetter implements PageDataGetter {
     private Map<String,Object> getCommonValues( ServletContext context, VitroRequest vreq){
         Map<String,Object> values = new HashMap<String,Object>();              
                 
-        VClassGroupCache vcgc = VClassGroupCache.getVClassGroupCache(context);
+        VClassGroupsForRequest vcgc = VClassGroupCache.getVClassGroups(vreq);
         List<VClassGroup> cgList = vcgc.getGroups();        
         LinkedList<VClassGroupTemplateModel> cgtmList = new LinkedList<VClassGroupTemplateModel>();
         for( VClassGroup classGroup : cgList){
@@ -168,7 +170,7 @@ public class BrowseDataGetter implements PageDataGetter {
         String vcgUri = getParam(Mode.CLASS_GROUP, request, params);
         VitroRequest vreq = new VitroRequest(request);        
         
-        VClassGroupCache vcgc = VClassGroupCache.getVClassGroupCache(context);
+        VClassGroupsForRequest vcgc = VClassGroupCache.getVClassGroups(request);
         VClassGroup vcg = vcgc.getGroup(vcgUri);        
         
         ArrayList<VClassTemplateModel> classes = new ArrayList<VClassTemplateModel>(vcg.size());

webapp/src/edu/cornell/mannlib/vitro/webapp/utils/pageDataGetter/ClassGroupPageData.java

@@ -16,7 +16,7 @@ import edu.cornell.mannlib.vitro.webapp.beans.VClass;
 import edu.cornell.mannlib.vitro.webapp.beans.VClassGroup;
 import edu.cornell.mannlib.vitro.webapp.controller.VitroRequest;
 import edu.cornell.mannlib.vitro.webapp.controller.freemarker.UrlBuilder;
-import edu.cornell.mannlib.vitro.webapp.dao.DisplayVocabulary;
+import edu.cornell.mannlib.vitro.webapp.dao.VClassGroupsForRequest;
 import edu.cornell.mannlib.vitro.webapp.dao.jena.VClassGroupCache;
 import edu.cornell.mannlib.vitro.webapp.web.templatemodels.VClassGroupTemplateModel;
 
@@ -28,12 +28,13 @@ import edu.cornell.mannlib.vitro.webapp.web.templatemodels.VClassGroupTemplateMo
 public class ClassGroupPageData implements PageDataGetter{
     private static final Log log = LogFactory.getLog(ClassGroupPageData.class);
     
+    @Override
 	public Map<String,Object> getData(ServletContext context, VitroRequest vreq, String pageUri, Map<String, Object> page ){
         HashMap<String, Object> data = new HashMap<String,Object>();
         String classGroupUri = vreq.getWebappDaoFactory().getPageDao().getClassGroupPage(pageUri);
         data.put("classGroupUri", classGroupUri);
 
-        VClassGroupCache vcgc = VClassGroupCache.getVClassGroupCache(context);
+        VClassGroupsForRequest vcgc = VClassGroupCache.getVClassGroups(vreq);
         List<VClassGroup> vcgList = vcgc.getGroups();
         VClassGroup group = null;
         for( VClassGroup vcg : vcgList){
@@ -87,7 +88,7 @@ public class ClassGroupPageData implements PageDataGetter{
     
     public static VClassGroupTemplateModel getClassGroup(String classGroupUri, ServletContext context, VitroRequest vreq){
         
-        VClassGroupCache vcgc = VClassGroupCache.getVClassGroupCache(context);
+        VClassGroupsForRequest vcgc = VClassGroupCache.getVClassGroups(vreq);
         List<VClassGroup> vcgList = vcgc.getGroups();
         VClassGroup group = null;
         for( VClassGroup vcg : vcgList){
@@ -125,11 +126,13 @@ public class ClassGroupPageData implements PageDataGetter{
         return new VClassGroupTemplateModel(group);
     }
     
+    @Override
 	public String getType(){
         return PageDataGetterUtils.generateDataGetterTypeURI(ClassGroupPageData.class.getName());
     } 
     
   //Get data servuice
+    @Override
 	public String getDataServiceUrl() {
     	return UrlBuilder.getUrl("/dataservice?getSolrIndividualsByVClass=1&vclassId=");
     }
@@ -139,6 +142,7 @@ public class ClassGroupPageData implements PageDataGetter{
      * For processing of JSONObject
      */
     //Currently empty, TODO: Review requirements
+    @Override
 	public JSONObject convertToJSON(Map<String, Object> dataMap, VitroRequest vreq) {
     	JSONObject rObj = null;
     	return rObj;

webapp/src/edu/cornell/mannlib/vitro/webapp/utils/pageDataGetter/IndividualsForClassesDataGetter.java

@@ -21,6 +21,7 @@ import edu.cornell.mannlib.vitro.webapp.beans.VClassGroup;
 import edu.cornell.mannlib.vitro.webapp.controller.VitroRequest;
 import edu.cornell.mannlib.vitro.webapp.controller.freemarker.UrlBuilder;
 import edu.cornell.mannlib.vitro.webapp.dao.PageDao;
+import edu.cornell.mannlib.vitro.webapp.dao.VClassGroupsForRequest;
 import edu.cornell.mannlib.vitro.webapp.dao.jena.VClassGroupCache;
 import edu.cornell.mannlib.vitro.webapp.web.templatemodels.VClassGroupTemplateModel;
 
@@ -32,6 +33,7 @@ import edu.cornell.mannlib.vitro.webapp.web.templatemodels.VClassGroupTemplateMo
 public class IndividualsForClassesDataGetter implements PageDataGetter{
     private static final Log log = LogFactory.getLog(IndividualsForClassesDataGetter.class);
     protected static String restrictClassesTemplateName = null;
+    @Override
 	public Map<String,Object> getData(ServletContext context, VitroRequest vreq, String pageUri, Map<String, Object> page ){
         this.setTemplateName();
     	HashMap<String, Object> data = new HashMap<String,Object>();
@@ -146,7 +148,7 @@ public class IndividualsForClassesDataGetter implements PageDataGetter{
     	log.debug("Processing classes that will be displayed");
     	List<VClass> vClasses = new ArrayList<VClass>();
   
-    	VClassGroupCache vcgc = VClassGroupCache.getVClassGroupCache(context);
+    	VClassGroupsForRequest vcgc = VClassGroupCache.getVClassGroups(vreq);
     	for(String classUri: classes) {
     		//Retrieve vclass from cache to get the count
     		VClass vclass = vcgc.getCachedVClass(classUri);
@@ -181,7 +183,7 @@ public class IndividualsForClassesDataGetter implements PageDataGetter{
 	    	List<VClass> restrictVClasses = new ArrayList<VClass>();
 	    	
 	    	List<String> urlEncodedRestrictClasses = new ArrayList<String>();
-	    	VClassGroupCache vcgc = VClassGroupCache.getVClassGroupCache(context);
+	    	VClassGroupsForRequest vcgc = VClassGroupCache.getVClassGroups(vreq);
 
 	    	if(restrictClasses.size() > 0) {
 	    		//classes for restriction are not displayed so don't need to include their class individual counts
@@ -225,7 +227,7 @@ public class IndividualsForClassesDataGetter implements PageDataGetter{
     
     public static VClassGroupTemplateModel getClassGroup(String classGroupUri, ServletContext context, VitroRequest vreq){
         
-        VClassGroupCache vcgc = VClassGroupCache.getVClassGroupCache(context);
+        VClassGroupsForRequest vcgc = VClassGroupCache.getVClassGroups(vreq);
         List<VClassGroup> vcgList = vcgc.getGroups();
         VClassGroup group = null;
         for( VClassGroup vcg : vcgList){
@@ -263,17 +265,20 @@ public class IndividualsForClassesDataGetter implements PageDataGetter{
         return new VClassGroupTemplateModel(group);
     }
     
+    @Override
 	public String getType(){
         return PageDataGetterUtils.generateDataGetterTypeURI(IndividualsForClassesDataGetter.class.getName());
     } 
     
     //Get data servuice
+    @Override
 	public String getDataServiceUrl() {
     	return UrlBuilder.getUrl("/dataservice?getSolrIndividualsByVClasses=1&vclassId=");
     }
     /**
      * For processig of JSONObject
      */
+    @Override
 	public JSONObject convertToJSON(Map<String, Object> map, VitroRequest vreq) {
     	JSONObject rObj = PageDataGetterUtils.processVclassResultsJSON(map, vreq, true);
     	return rObj;

webapp/src/edu/cornell/mannlib/vitro/webapp/utils/pageDataGetter/PageDataGetterUtils.java

@@ -12,6 +12,7 @@ import java.util.List;
 import java.util.Map;
 
 import javax.servlet.ServletContext;
+import javax.servlet.http.HttpServletRequest;
 
 import org.apache.commons.lang.StringUtils;
 import org.apache.commons.logging.Log;
@@ -29,9 +30,9 @@ import edu.cornell.mannlib.vitro.webapp.controller.freemarker.IndividualListCont
 import edu.cornell.mannlib.vitro.webapp.controller.freemarker.IndividualListController.PageRecord;
 import edu.cornell.mannlib.vitro.webapp.controller.freemarker.UrlBuilder;
 import edu.cornell.mannlib.vitro.webapp.controller.json.JsonServlet;
+import edu.cornell.mannlib.vitro.webapp.dao.VClassGroupsForRequest;
 import edu.cornell.mannlib.vitro.webapp.dao.WebappDaoFactory;
 import edu.cornell.mannlib.vitro.webapp.dao.jena.VClassGroupCache;
-import edu.cornell.mannlib.vitro.webapp.utils.dataGetter.DataGetterUtils;
 
 public class PageDataGetterUtils {
     protected static final String DATA_GETTER_MAP = "pageTypeToDataGetterMap";
@@ -124,7 +125,7 @@ public class PageDataGetterUtils {
     	
     	for(String dgClassName: dataGetterClassNames) {
     		String className = getClassNameFromUri(dgClassName);
-    		Class clz =  Class.forName(className);
+    		Class<?> clz =  Class.forName(className);
     		
     		if( PageDataGetter.class.isAssignableFrom(clz)){    		        		
     		    PageDataGetter pg = (PageDataGetter) clz.newInstance();
@@ -175,7 +176,7 @@ public class PageDataGetterUtils {
                 @SuppressWarnings("unchecked")
                 Enumeration<String> e = vreq.getParameterNames();
                 while(e.hasMoreElements()){
-                    String name = (String)e.nextElement();
+                    String name = e.nextElement();
                     log.debug("parameter: " + name);
                     for( String value : vreq.getParameterValues(name) ){
                         log.debug("value for " + name + ": '" + value + "'");
@@ -299,9 +300,9 @@ public class PageDataGetterUtils {
     //Get All VClass Groups information
     //Used within menu management and processing
     //TODO: Check if more appropriate location possible
-    public static List<HashMap<String, String>> getClassGroups(ServletContext context) {
+    public static List<HashMap<String, String>> getClassGroups(HttpServletRequest req) {
     	//Wanted this to be 
-    	VClassGroupCache vcgc = VClassGroupCache.getVClassGroupCache(context);
+    	VClassGroupsForRequest vcgc = VClassGroupCache.getVClassGroups(req);
         List<VClassGroup> vcgList = vcgc.getGroups();
         //For now encoding as hashmap with label and URI as trying to retrieve class group
         //results in errors for some reason
@@ -323,11 +324,11 @@ public class PageDataGetterUtils {
    //TODO: Check whether this needs to be put here or elsewhere, as this is data getter specific
     //with respect to class groups
   //Need to use VClassGroupCache to retrieve class group information - this is the information returned from "for class group"
-	public static void getClassGroupForDataGetter(ServletContext context, Map<String, Object> pageData, Map<String, Object> templateData) {
+	public static void getClassGroupForDataGetter(HttpServletRequest req, Map<String, Object> pageData, Map<String, Object> templateData) {
     	//Get the class group from VClassGroup, this is the same as the class group for the class group page data getter
 		//and the associated class group (not custom) for individuals datagetter
 		String classGroupUri = (String) pageData.get("classGroupUri");
-		VClassGroupCache vcgc = VClassGroupCache.getVClassGroupCache(context);
+		VClassGroupsForRequest vcgc = VClassGroupCache.getVClassGroups(req);
     	VClassGroup group = vcgc.getGroup(classGroupUri);
 
 		templateData.put("classGroup", group);

webapp/src/edu/cornell/mannlib/vitro/webapp/web/widgets/BrowseWidget.java

@@ -21,6 +21,7 @@ import edu.cornell.mannlib.vitro.webapp.beans.VClass;
 import edu.cornell.mannlib.vitro.webapp.beans.VClassGroup;
 import edu.cornell.mannlib.vitro.webapp.controller.VitroRequest;
 import edu.cornell.mannlib.vitro.webapp.controller.json.JsonServlet;
+import edu.cornell.mannlib.vitro.webapp.dao.VClassGroupsForRequest;
 import edu.cornell.mannlib.vitro.webapp.dao.jena.VClassGroupCache;
 import edu.cornell.mannlib.vitro.webapp.utils.JsonToFmModel;
 import edu.cornell.mannlib.vitro.webapp.web.templatemodels.VClassGroupTemplateModel;
@@ -123,7 +124,7 @@ public class BrowseWidget extends Widget {
                 
         VitroRequest vreq = new VitroRequest(request);
         
-        VClassGroupCache vcgc = VClassGroupCache.getVClassGroupCache(context);
+        VClassGroupsForRequest vcgc = VClassGroupCache.getVClassGroups(request);
         List<VClassGroup> cgList = vcgc.getGroups();
         
 //        List<VClassGroup> classGroups =
@@ -186,7 +187,7 @@ public class BrowseWidget extends Widget {
         VitroRequest vreq = new VitroRequest(request);        
         //VClassGroup vcg = vreq.getWebappDaoFactory().getVClassGroupDao().getGroupByURI(vcgUri);
         
-        VClassGroupCache vcgc = VClassGroupCache.getVClassGroupCache(context);
+        VClassGroupsForRequest vcgc = VClassGroupCache.getVClassGroups(request);
         VClassGroup vcg = vcgc.getGroup(vcgUri);        
         
         //vreq.getWebappDaoFactory().getVClassDao().addVClassesToGroup(vcg, false, true);