//package org.argeo.eclipse.ui.workbench.osgi;
   //public class BundlesView {}
   
   /*
    * Copyright (C) 2007-2012 Argeo GmbH
    *
    * Licensed under the Apache License, Version 2.0 (the "License");
    * you may not use this file except in compliance with the License.
    * You may obtain a copy of the License at
   *
   *         http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  package org.argeo.cms.e4.monitoring;
  
  import java.util.ArrayList;
  import java.util.Collection;
  import java.util.List;
  
  import javax.annotation.PostConstruct;
  import javax.naming.ldap.LdapName;
  
  import org.argeo.cms.CmsException;
  import org.argeo.cms.auth.CmsSession;
  import org.argeo.eclipse.ui.ColumnViewerComparator;
  import org.argeo.eclipse.ui.specific.EclipseUiSpecificUtils;
  import org.argeo.util.LangUtils;
  import org.eclipse.e4.ui.di.Focus;
  import org.eclipse.jface.viewers.ColumnLabelProvider;
  import org.eclipse.jface.viewers.IStructuredContentProvider;
  import org.eclipse.jface.viewers.TableViewer;
  import org.eclipse.jface.viewers.TableViewerColumn;
  import org.eclipse.jface.viewers.Viewer;
  import org.eclipse.swt.SWT;
  import org.eclipse.swt.widgets.Composite;
  import org.osgi.framework.BundleContext;
  import org.osgi.framework.FrameworkUtil;
  import org.osgi.framework.InvalidSyntaxException;
  import org.osgi.framework.ServiceReference;
  
  /**
   * Overview of the active CMS sessions.
   */
  public class CmsSessionsView {
  	private final static BundleContext bc = FrameworkUtil.getBundle(CmsSessionsView.class).getBundleContext();
  
  	private TableViewer viewer;
  
  	@PostConstruct
  	public void createPartControl(Composite parent) {
  		viewer = new TableViewer(parent);
  		viewer.setContentProvider(new CmsSessionContentProvider());
  		viewer.getTable().setHeaderVisible(true);
  
  		EclipseUiSpecificUtils.enableToolTipSupport(viewer);
  
  		int longColWidth = 150;
  		int smallColWidth = 100;
  
  		// Display name
  		TableViewerColumn column = new TableViewerColumn(viewer, SWT.NONE);
  		column.getColumn().setWidth(longColWidth);
  		column.getColumn().setText("User");
  		column.setLabelProvider(new ColumnLabelProvider() {
  			private static final long serialVersionUID = -5234573509093747505L;
  
  			public String getText(Object element) {
  				return ((CmsSession) element).getAuthorization().toString();
  			}
  
  			public String getToolTipText(Object element) {
  				return ((CmsSession) element).getUserDn().toString();
  			}
  		});
  		new ColumnViewerComparator(column);
  
  		// Creation time
  		column = new TableViewerColumn(viewer, SWT.NONE);
  		column.getColumn().setWidth(smallColWidth);
  		column.getColumn().setText("Since");
  		column.setLabelProvider(new ColumnLabelProvider() {
  			private static final long serialVersionUID = -5234573509093747505L;
  
  			public String getText(Object element) {
  				return LangUtils.since(((CmsSession) element).getCreationTime());
  			}
  
  			public String getToolTipText(Object element) {
  				return ((CmsSession) element).getCreationTime().toString();
  			}
  		});
  		new ColumnViewerComparator(column);
  
  		// Username
 		column = new TableViewerColumn(viewer, SWT.NONE);
 		column.getColumn().setWidth(smallColWidth);
 		column.getColumn().setText("Username");
 		column.setLabelProvider(new ColumnLabelProvider() {
 			private static final long serialVersionUID = -5234573509093747505L;
 
 			public String getText(Object element) {
 				LdapName userDn = ((CmsSession) element).getUserDn();
 				return userDn.getRdn(userDn.size() - 1).getValue().toString();
 			}
 
 			public String getToolTipText(Object element) {
 				return ((CmsSession) element).getUserDn().toString();
 			}
 		});
 		new ColumnViewerComparator(column);
 
 		// UUID
 		column = new TableViewerColumn(viewer, SWT.NONE);
 		column.getColumn().setWidth(smallColWidth);
 		column.getColumn().setText("UUID");
 		column.setLabelProvider(new ColumnLabelProvider() {
 			private static final long serialVersionUID = -5234573509093747505L;
 
 			public String getText(Object element) {
 				return ((CmsSession) element).getUuid().toString();
 			}
 
 			public String getToolTipText(Object element) {
 				return getText(element);
 			}
 		});
 		new ColumnViewerComparator(column);
 
 		// Local ID
 		column = new TableViewerColumn(viewer, SWT.NONE);
 		column.getColumn().setWidth(smallColWidth);
 		column.getColumn().setText("Local ID");
 		column.setLabelProvider(new ColumnLabelProvider() {
 			private static final long serialVersionUID = -5234573509093747505L;
 
 			public String getText(Object element) {
 				return ((CmsSession) element).getLocalId();
 			}
 
 			public String getToolTipText(Object element) {
 				return getText(element);
 			}
 		});
 		new ColumnViewerComparator(column);
 
 		viewer.setInput(bc);
 
 	}
 
 	@Focus
 	public void setFocus() {
 		if (viewer != null)
 			viewer.getControl().setFocus();
 	}
 
 	/** Content provider managing the array of bundles */
 	private static class CmsSessionContentProvider implements IStructuredContentProvider {
 		private static final long serialVersionUID = -8533792785725875977L;
 
 		public Object[] getElements(Object inputElement) {
 			if (inputElement instanceof BundleContext) {
 				BundleContext bc = (BundleContext) inputElement;
 				Collection<ServiceReference<CmsSession>> srs;
 				try {
 					srs = bc.getServiceReferences(CmsSession.class, null);
 				} catch (InvalidSyntaxException e) {
 					throw new CmsException("Cannot retrieve CMS sessions", e);
 				}
 				List<CmsSession> res = new ArrayList<>();
 				for (ServiceReference<CmsSession> sr : srs) {
 					res.add(bc.getService(sr));
 				}
 				return res.toArray();
 			}
 			return null;
 		}
 
 		public void dispose() {
 		}
 
 		public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {
 		}
 	}
 }