Modified IndexServiceBean to use the new feature flag, that has been separated from the flag that

enables the search-side optimization;
Fixed the groups sub-query for the guest user. #10554

Author: landreev

src/main/java/edu/harvard/iq/dataverse/search/IndexServiceBean.java

@@ -215,7 +215,7 @@ public Future<String> indexDataverse(Dataverse dataverse, boolean processPaths)
         solrInputDocument.addField(SearchFields.DATAVERSE_CATEGORY, dataverse.getIndexableCategoryName());
         if (dataverse.isReleased()) {
             solrInputDocument.addField(SearchFields.PUBLICATION_STATUS, PUBLISHED_STRING);
-            if (FeatureFlags.AVOID_EXPENSIVE_SOLR_JOIN.enabled()) {
+            if (FeatureFlags.ADD_PUBLICOBJECT_SOLR_FIELD.enabled()) {
                 solrInputDocument.addField(SearchFields.PUBLIC_OBJECT, true);
             }
             solrInputDocument.addField(SearchFields.RELEASE_OR_CREATE_DATE, dataverse.getPublicationDate());
@@ -882,7 +882,7 @@ public SolrInputDocuments toSolrDocs(IndexableDataset indexableDataset, Set<Long
 
         if (state.equals(indexableDataset.getDatasetState().PUBLISHED)) {
             solrInputDocument.addField(SearchFields.PUBLICATION_STATUS, PUBLISHED_STRING);
-            if (FeatureFlags.AVOID_EXPENSIVE_SOLR_JOIN.enabled()) {
+            if (FeatureFlags.ADD_PUBLICOBJECT_SOLR_FIELD.enabled()) {
                 solrInputDocument.addField(SearchFields.PUBLIC_OBJECT, true);
             }
             // solrInputDocument.addField(SearchFields.RELEASE_OR_CREATE_DATE,
@@ -1398,7 +1398,7 @@ public SolrInputDocuments toSolrDocs(IndexableDataset indexableDataset, Set<Long
                     if (indexableDataset.getDatasetState().equals(indexableDataset.getDatasetState().PUBLISHED)) {
                         fileSolrDocId = solrDocIdentifierFile + fileEntityId;
                         datafileSolrInputDocument.addField(SearchFields.PUBLICATION_STATUS, PUBLISHED_STRING);
-                        if (FeatureFlags.AVOID_EXPENSIVE_SOLR_JOIN.enabled()) {
+                        if (FeatureFlags.ADD_PUBLICOBJECT_SOLR_FIELD.enabled()) {
                             datafileSolrInputDocument.addField(SearchFields.PUBLIC_OBJECT, true);
                         }
                         // datafileSolrInputDocument.addField(SearchFields.PERMS, publicGroupString);

src/main/java/edu/harvard/iq/dataverse/search/SearchServiceBean.java

@@ -1057,7 +1057,7 @@ private String getPermissionFilterQuery(DataverseRequest dataverseRequest, SolrQ
              * is indexed on the content document itself, rather than a permission 
              * document. An additional join will be added only for any extra, 
              * more restricted groups that the user may be part of.
-             * Note the experimental nature of this optimization. 
+             * **Note the experimental nature of this optimization**. 
              */
             StringBuilder sb = new StringBuilder();
             StringBuilder sbgroups = new StringBuilder();
@@ -1074,7 +1074,6 @@ private String getPermissionFilterQuery(DataverseRequest dataverseRequest, SolrQ
 
             // An AuthenticatedUser should also be able to see all the content 
             // on which they have direct permissions:              
-            //solrQuery.setParam("q1", SearchFields.DISCOVERABLE_BY + ":" + IndexServiceBean.getGroupPerUserPrefix() + au.getId());
             if (au != null) {
                 groupCounter++; 
                 sbgroups.append(IndexServiceBean.getGroupPerUserPrefix() + au.getId());
@@ -1087,7 +1086,9 @@ private String getPermissionFilterQuery(DataverseRequest dataverseRequest, SolrQ
                 String groupAlias = group.getAlias();
                 if (groupAlias != null && !groupAlias.isEmpty() && !groupAlias.startsWith("builtIn")) {
                     groupCounter++;
-                    sbgroups.append(" OR ");
+                    if (groupCounter > 1) {
+                        sbgroups.append(" OR ");
+                    }
                     sbgroups.append(IndexServiceBean.getGroupPrefix() + groupAlias);
                 }
             }