legacy/org.argeo.slc.client.ui/src/org/argeo/slc/client/ui/views/JcrResultListView.java

   1 package org.argeo.slc.client.ui.views;
   2
   3 import java.text.DateFormat;
   4 import java.text.SimpleDateFormat;
   5 import java.util.ArrayList;
   6 import java.util.List;
   7
   8 import javax.jcr.Node;
   9 import javax.jcr.NodeIterator;
  10 import javax.jcr.Repository;
  11 import javax.jcr.RepositoryException;
  12 import javax.jcr.Session;
  13 import javax.jcr.observation.Event;
  14 import javax.jcr.observation.EventListener;
  15 import javax.jcr.observation.ObservationManager;
  16 import javax.jcr.query.Query;
  17
  18 import org.argeo.eclipse.ui.jcr.AsyncUiEventListener;
  19 import org.argeo.eclipse.ui.jcr.NodeElementComparer;
  20 import org.argeo.jcr.JcrUtils;
  21 import org.argeo.slc.SlcException;
  22 import org.argeo.slc.SlcNames;
  23 import org.argeo.slc.SlcTypes;
  24 import org.argeo.slc.client.ui.ClientUiPlugin;
  25 import org.argeo.slc.client.ui.editors.ProcessEditor;
  26 import org.argeo.slc.client.ui.editors.ProcessEditorInput;
  27 import org.argeo.slc.jcr.SlcJcrResultUtils;
  28 import org.eclipse.jface.viewers.ColumnLabelProvider;
  29 import org.eclipse.jface.viewers.DoubleClickEvent;
  30 import org.eclipse.jface.viewers.IBaseLabelProvider;
  31 import org.eclipse.jface.viewers.IDoubleClickListener;
  32 import org.eclipse.jface.viewers.IStructuredContentProvider;
  33 import org.eclipse.jface.viewers.IStructuredSelection;
  34 import org.eclipse.jface.viewers.ITableLabelProvider;
  35 import org.eclipse.jface.viewers.TableViewer;
  36 import org.eclipse.jface.viewers.Viewer;
  37 import org.eclipse.swt.SWT;
  38 import org.eclipse.swt.graphics.Image;
  39 import org.eclipse.swt.widgets.Composite;
  40 import org.eclipse.swt.widgets.Display;
  41 import org.eclipse.swt.widgets.Table;
  42 import org.eclipse.swt.widgets.TableColumn;
  43 import org.eclipse.ui.IWorkbenchPage;
  44 import org.eclipse.ui.PlatformUI;
  45 import org.eclipse.ui.part.ViewPart;
  46
  47 /** Displays results. */
  48 public class JcrResultListView extends ViewPart implements SlcNames {
  49         public static final String ID = ClientUiPlugin.ID + ".jcrResultListView";
  50
  51         private TableViewer viewer;
  52
  53         private Repository repository;
  54         private Session session;
  55
  56         private EventListener resultsObserver;
  57
  58         private DateFormat dateFormat = new SimpleDateFormat("EEE, dd MMM yyyy HH:mm:ss");
  59         private Integer queryLimit = 2000;
  60
  61         public void createPartControl(Composite parent) {
  62                 try {
  63                         session = repository.login();
  64                 } catch (RepositoryException e1) {
  65                         throw new SlcException("Cannot log in to repository");
  66                 }
  67
  68                 Table table = createTable(parent);
  69                 viewer = new TableViewer(table);
  70                 viewer.setLabelProvider(createLabelProvider());
  71                 viewer.setContentProvider(new ViewContentProvider());
  72                 viewer.setInput(getViewSite());
  73                 viewer.addDoubleClickListener(new ViewDoubleClickListener());
  74                 viewer.setComparer(new NodeElementComparer());
  75
  76                 getViewSite().setSelectionProvider(viewer);
  77
  78                 resultsObserver = new ResultObserver(viewer.getTable().getDisplay());
  79                 try {
  80                         ObservationManager observationManager = session.getWorkspace().getObservationManager();
  81                         String[] nodeTypes = { SlcTypes.SLC_TEST_RESULT };
  82                         // FIXME Will not be notified if empty result is deleted
  83                         observationManager.addEventListener(resultsObserver, Event.PROPERTY_ADDED | Event.NODE_REMOVED,
  84                                         SlcJcrResultUtils.getSlcResultsBasePath(session), true, null, nodeTypes, false);
  85                 } catch (RepositoryException e) {
  86                         throw new SlcException("Cannot register listeners", e);
  87                 }
  88
  89         }
  90
  91         protected Table createTable(Composite parent) {
  92                 int style = SWT.BORDER | SWT.H_SCROLL | SWT.V_SCROLL | SWT.FULL_SELECTION | SWT.MULTI;
  93                 // does not work with RAP, commented for the time being
  94                 // | SWT.HIDE_SELECTION;
  95
  96                 Table table = new Table(parent, style);
  97
  98                 table.setLinesVisible(true);
  99                 table.setHeaderVisible(true);
 100
 101                 TableColumn column = new TableColumn(table, SWT.LEFT, 0);
 102                 column.setText("Date");
 103                 column.setWidth(200);
 104
 105                 column = new TableColumn(table, SWT.LEFT, 1);
 106                 column.setText("Id");
 107                 column.setWidth(300);
 108
 109                 return table;
 110         }
 111
 112         // public void refresh() {
 113         // viewer.refresh();
 114         // }
 115
 116         /*
 117          * METHODS TO BE OVERRIDDEN
 118          */
 119         protected IBaseLabelProvider createLabelProvider() {
 120                 return new ViewLabelProvider();
 121         }
 122
 123         protected void processDoubleClick(DoubleClickEvent evt) {
 124                 Object obj = ((IStructuredSelection) evt.getSelection()).getFirstElement();
 125                 try {
 126                         if (obj instanceof Node) {
 127                                 Node node = (Node) obj;
 128                                 // FIXME: open a default result editor
 129                                 if (node.isNodeType(SlcTypes.SLC_PROCESS)) {
 130                                         IWorkbenchPage activePage = PlatformUI.getWorkbench().getActiveWorkbenchWindow().getActivePage();
 131                                         activePage.openEditor(new ProcessEditorInput(node.getPath()), ProcessEditor.ID);
 132                                 }
 133                         }
 134                 } catch (Exception e) {
 135                         throw new SlcException("Cannot open " + obj, e);
 136                 }
 137         }
 138
 139         public void setFocus() {
 140                 viewer.getControl().setFocus();
 141         }
 142
 143         class ViewContentProvider implements IStructuredContentProvider {
 144                 private static final long serialVersionUID = -4719077015405546260L;
 145
 146                 public Object[] getElements(Object inputElement) {
 147                         try {
 148                                 // TODO filter, optimize with virtual table, ...
 149                                 String sql = "SELECT * from [" + SlcTypes.SLC_TEST_RESULT + "] ORDER BY [jcr:lastModified] DESC";
 150                                 Query query = session.getWorkspace().getQueryManager().createQuery(sql, Query.JCR_SQL2);
 151                                 // TODO paging
 152                                 query.setLimit(queryLimit);
 153                                 List<Node> nodes = new ArrayList<Node>();
 154                                 for (NodeIterator nit = query.execute().getNodes(); nit.hasNext();) {
 155                                         nodes.add(nit.nextNode());
 156                                 }
 157                                 return nodes.toArray();
 158                         } catch (RepositoryException e) {
 159                                 throw new SlcException("Cannot retrieve processes", e);
 160                         }
 161                 }
 162
 163                 public void dispose() {
 164                 }
 165
 166                 public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {
 167                 }
 168
 169         }
 170
 171         class ViewLabelProvider extends ColumnLabelProvider implements ITableLabelProvider {
 172                 private static final long serialVersionUID = -6323202576386795247L;
 173
 174                 public Image getColumnImage(Object obj, int columnIndex) {
 175                         if (columnIndex != 0)
 176                                 return null;
 177                         try {
 178                                 Node node = (Node) obj;
 179                                 if (node.hasProperty(SLC_COMPLETED)) {
 180                                         // TODO
 181                                 }
 182                                 return null;
 183                         } catch (RepositoryException e) {
 184                                 throw new SlcException("Cannot get column text", e);
 185                         }
 186                 }
 187
 188                 public String getColumnText(Object obj, int index) {
 189                         try {
 190                                 Node node = (Node) obj;
 191                                 switch (index) {
 192
 193                                 case 0:
 194                                         if (node.hasProperty(SLC_COMPLETED)) {
 195                                                 return dateFormat.format(node.getProperty(SLC_COMPLETED).getDate().getTime());
 196                                         } else {
 197                                                 return "OPEN";
 198                                         }
 199                                 case 1:
 200                                         return node.getProperty(SlcNames.SLC_UUID).getString();
 201                                 }
 202                                 return getText(obj);
 203                         } catch (RepositoryException e) {
 204                                 throw new SlcException("Cannot get column text", e);
 205                         }
 206                 }
 207
 208         }
 209
 210         class ViewDoubleClickListener implements IDoubleClickListener {
 211                 public void doubleClick(DoubleClickEvent evt) {
 212                         processDoubleClick(evt);
 213                 }
 214
 215         }
 216
 217         class ResultObserver extends AsyncUiEventListener {
 218
 219                 public ResultObserver(Display display) {
 220                         super(display);
 221                 }
 222
 223                 @Override
 224                 protected Boolean willProcessInUiThread(List<Event> events) throws RepositoryException {
 225                         for (Event event : events) {
 226                                 // getLog().debug("Received event " + event);
 227                                 int eventType = event.getType();
 228                                 if (eventType == Event.NODE_REMOVED)
 229                                         return true;
 230                                 String path = event.getPath();
 231                                 int index = path.lastIndexOf('/');
 232                                 String propertyName = path.substring(index + 1);
 233                                 if (propertyName.equals(SLC_COMPLETED) || propertyName.equals(SLC_UUID)) {
 234                                         return true;
 235                                 }
 236                         }
 237                         return false;
 238                 }
 239
 240                 protected void onEventInUiThread(List<Event> events) throws RepositoryException {
 241                         if (getLog().isTraceEnabled())
 242                                 getLog().trace("Refresh result list");
 243                         viewer.refresh();
 244                 }
 245         }
 246
 247         public void dispose() {
 248                 JcrUtils.unregisterQuietly(session.getWorkspace(), resultsObserver);
 249                 JcrUtils.logoutQuietly(session);
 250                 super.dispose();
 251         }
 252
 253         public void setRepository(Repository repository) {
 254                 this.repository = repository;
 255         }
 256 }