CCM NG/ccm-core: Some JavaDoc for CategoryRepository and DomainRepository

git-svn-id: https://svn.libreccm.org/ccm/ccm_ng@4702 8810af33-2d31-482b-a856-94f89814c4df

ccm-core/src/main/java/org/libreccm/admin/ui/usersgroupsroles/UsersGroupsRoles.java

@@ -20,14 +20,19 @@ package org.libreccm.admin.ui.usersgroupsroles;
 
 import com.arsdigita.ui.admin.AdminUiConstants;
 
+import com.vaadin.ui.Button;
 import com.vaadin.ui.CustomComponent;
 import com.vaadin.ui.Grid;
+import com.vaadin.ui.HorizontalLayout;
 import com.vaadin.ui.TabSheet;
+import com.vaadin.ui.TextField;
 import com.vaadin.ui.UI;
+import com.vaadin.ui.components.grid.HeaderCell;
+import com.vaadin.ui.components.grid.HeaderRow;
+import com.vaadin.ui.themes.ValoTheme;
 import org.libreccm.admin.ui.AdminView;
 import org.libreccm.security.User;
 
-import java.util.List;
 import java.util.ResourceBundle;
 
 /**
@@ -49,6 +54,7 @@ public class UsersGroupsRoles extends CustomComponent {
     private final TabSheet tabSheet;
 
     private final Grid<User> usersTable;
+    private UsersTableDataProvider usersTableDataProvider;
 
     public UsersGroupsRoles(final AdminView view) {
 
@@ -86,8 +92,34 @@ public class UsersGroupsRoles extends CustomComponent {
             })
             .setId(COL_BANNED)
             .setCaption("Banned?");
+
+        final HeaderRow filterRow = usersTable.appendHeaderRow();
+        final HeaderCell userNameFilterCell = filterRow.getCell(COL_USER_NAME);
+        final TextField userNameFilter = new TextField();
+        userNameFilter.setPlaceholder("User name");
+        userNameFilter.setDescription("Filter users by username");
+        userNameFilter.addStyleName(ValoTheme.TEXTFIELD_TINY);
+        userNameFilter
+            .addValueChangeListener(event -> {
+                usersTableDataProvider
+                    .setUserNameFilter(event.getValue().toLowerCase());
+            });
+        userNameFilterCell.setComponent(userNameFilter);
         
-        
+        final HeaderRow actionsRow = usersTable.prependHeaderRow();
+        final HeaderCell actionsCell = actionsRow.join(COL_USER_NAME, 
+                        COL_GIVEN_NAME, 
+                        COL_FAMILY_NAME, 
+                        COL_EMAIL, 
+                        COL_BANNED);
+        final Button clearFiltersButton = new Button("Clear filters");
+        clearFiltersButton.addClickListener(event -> {
+            usersTableDataProvider.setUserNameFilter(null);
+        });
+        final HorizontalLayout actionsLayout = new HorizontalLayout(
+            clearFiltersButton);
+        actionsCell.setComponent(actionsLayout);
+
         tabSheet.addTab(usersTable, "Users");
 
         setCompositionRoot(tabSheet);
@@ -97,8 +129,8 @@ public class UsersGroupsRoles extends CustomComponent {
 //    public void setUsers(final List<User> users) {
 //        usersTable.setItems(users);
 //    }
-    
     public void setDataProvider(final UsersTableDataProvider dataProvider) {
+        this.usersTableDataProvider = dataProvider;
         usersTable.setDataProvider(dataProvider);
     }
 

ccm-core/src/main/java/org/libreccm/admin/ui/usersgroupsroles/UsersTableDataProvider.java

@@ -45,6 +45,8 @@ public class UsersTableDataProvider extends AbstractDataProvider<User, String> {
     @Inject
     private EntityManager entityManager;
 
+    private String userNameFilter;
+
     @Override
     public boolean isInMemory() {
         return false;
@@ -58,11 +60,9 @@ public class UsersTableDataProvider extends AbstractDataProvider<User, String> {
         CriteriaQuery<Long> criteriaQuery = builder
             .createQuery(Long.class);
         final Root<User> from = criteriaQuery.from(User.class);
-        
+
         criteriaQuery = criteriaQuery.select(builder.count(from));
 
-        
-        
         return entityManager
             .createQuery(criteriaQuery)
             .getSingleResult()
@@ -77,8 +77,13 @@ public class UsersTableDataProvider extends AbstractDataProvider<User, String> {
         final CriteriaQuery<User> criteriaQuery = builder
             .createQuery(User.class);
         final Root<User> from = criteriaQuery.from(User.class);
-        
-        
+
+        if (userNameFilter != null && !userNameFilter.trim().isEmpty()) {
+            criteriaQuery
+                .where(builder.like(builder.lower(from.get("name")),
+                                     String.format("%s%%", userNameFilter)));
+        }
+
         return entityManager
             .createQuery(criteriaQuery)
             .setMaxResults(query.getLimit())
@@ -87,4 +92,9 @@ public class UsersTableDataProvider extends AbstractDataProvider<User, String> {
             .stream();
     }
 
+    public void setUserNameFilter(final String userNameFilter) {
+        this.userNameFilter = userNameFilter;
+        refreshAll();
+    }
+
 }

ccm-core/src/main/java/org/libreccm/categorization/CategoryRepository.java

@@ -36,6 +36,11 @@ import javax.persistence.TypedQuery;
 import javax.transaction.Transactional;
 
 /**
+ * Provides CRUB operations for {@link Category} objects.
+ *
+ * Note: This repository class does no permission checks when retrieving
+ * categories. This is the responsibility of the application which uses the
+ * retrieved categories.
  *
  * @author <a href="mailto:jens.pelzetter@googlemail.com">Jens Pelzetter</a>
  */

ccm-core/src/main/java/org/libreccm/categorization/DomainRepository.java

@@ -38,6 +38,10 @@ import javax.transaction.Transactional;
 /**
  * A repository for executing CRUD operations on {@link Domain} objects.
  *
+ * Note: This repository does the permission checks when retrieving
+ * {@link Domain}s from the database. This is the responsibility of the
+ * application using the {@link Domain}.
+ *
  * @author <a href="mailto:jens.pelzetter@googlemail.com">Jens Pelzetter</a>
  */
 @RequestScoped

ccm-core/src/main/java/org/libreccm/core/AbstractEntityRepository.java

@@ -136,12 +136,14 @@ public abstract class AbstractEntityRepository<K, E> {
      */
     @Transactional(Transactional.TxType.REQUIRED)
     public Optional<E> findById(final K entityId) {
+        
         return Optional.ofNullable(entityManager.find(getEntityClass(),
                                                       entityId));
     }
 
     @Transactional(Transactional.TxType.REQUIRED)
     public Optional<E> findById(final K entityId, final String entityGraphName) {
+        
         @SuppressWarnings("unchecked")
         final EntityGraph<E> entityGraph = (EntityGraph<E>) entityManager.
                 getEntityGraph(entityGraphName);
@@ -151,6 +153,7 @@ public abstract class AbstractEntityRepository<K, E> {
     @Transactional(Transactional.TxType.REQUIRED)
     public Optional<E> findById(final K entityId,
                                 final EntityGraph<E> entityGraph) {
+        
         final Map<String, Object> hints = new HashMap<>();
         hints.put(FETCH_GRAPH_HINT_KEY, entityGraph);
         return Optional.ofNullable(entityManager.find(getEntityClass(),