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

   1 /*
   2  * Copyright (C) 2007-2012 Argeo GmbH
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  *         http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16 package org.argeo.slc.client.ui.views;
  17
  18 import java.text.DateFormat;
  19 import java.text.SimpleDateFormat;
  20 import java.util.ArrayList;
  21 import java.util.List;
  22
  23 import javax.jcr.Node;
  24 import javax.jcr.NodeIterator;
  25 import javax.jcr.Repository;
  26 import javax.jcr.RepositoryException;
  27 import javax.jcr.Session;
  28 import javax.jcr.observation.Event;
  29 import javax.jcr.observation.EventListener;
  30 import javax.jcr.observation.ObservationManager;
  31 import javax.jcr.query.Query;
  32
  33 import org.argeo.eclipse.ui.jcr.AsyncUiEventListener;
  34 import org.argeo.eclipse.ui.jcr.NodeElementComparer;
  35 import org.argeo.jcr.JcrUtils;
  36 import org.argeo.slc.SlcException;
  37 import org.argeo.slc.client.ui.ClientUiPlugin;
  38 import org.argeo.slc.client.ui.editors.ProcessEditor;
  39 import org.argeo.slc.client.ui.editors.ProcessEditorInput;
  40 import org.argeo.slc.jcr.SlcJcrResultUtils;
  41 import org.argeo.slc.jcr.SlcNames;
  42 import org.argeo.slc.jcr.SlcTypes;
  43 import org.eclipse.jface.viewers.ColumnLabelProvider;
  44 import org.eclipse.jface.viewers.DoubleClickEvent;
  45 import org.eclipse.jface.viewers.IBaseLabelProvider;
  46 import org.eclipse.jface.viewers.IDoubleClickListener;
  47 import org.eclipse.jface.viewers.IStructuredContentProvider;
  48 import org.eclipse.jface.viewers.IStructuredSelection;
  49 import org.eclipse.jface.viewers.ITableLabelProvider;
  50 import org.eclipse.jface.viewers.TableViewer;
  51 import org.eclipse.jface.viewers.Viewer;
  52 import org.eclipse.swt.SWT;
  53 import org.eclipse.swt.graphics.Image;
  54 import org.eclipse.swt.widgets.Composite;
  55 import org.eclipse.swt.widgets.Display;
  56 import org.eclipse.swt.widgets.Table;
  57 import org.eclipse.swt.widgets.TableColumn;
  58 import org.eclipse.ui.IWorkbenchPage;
  59 import org.eclipse.ui.PlatformUI;
  60 import org.eclipse.ui.part.ViewPart;
  61
  62 /** Displays results. */
  63 public class JcrResultListView extends ViewPart implements SlcNames {
  64         public static final String ID = ClientUiPlugin.ID + ".jcrResultListView";
  65
  66         private TableViewer viewer;
  67
  68         private Session session;
  69
  70         private EventListener resultsObserver;
  71
  72         private DateFormat dateFormat = new SimpleDateFormat(
  73                         "EEE, dd MMM yyyy HH:mm:ss");
  74         private Integer queryLimit = 2000;
  75
  76         public void createPartControl(Composite parent) {
  77
  78                 Table table = createTable(parent);
  79                 viewer = new TableViewer(table);
  80                 viewer.setLabelProvider(createLabelProvider());
  81                 viewer.setContentProvider(new ViewContentProvider());
  82                 viewer.setInput(getViewSite());
  83                 viewer.addDoubleClickListener(new ViewDoubleClickListener());
  84                 viewer.setComparer(new NodeElementComparer());
  85
  86                 getViewSite().setSelectionProvider(viewer);
  87
  88                 resultsObserver = new ResultObserver(viewer.getTable().getDisplay());
  89                 try {
  90                         ObservationManager observationManager = session.getWorkspace()
  91                                         .getObservationManager();
  92                         String[] nodeTypes = { SlcTypes.SLC_TEST_RESULT };
  93                         // FIXME Will not be notified if empty result is deleted
  94                         observationManager.addEventListener(resultsObserver,
  95                                         Event.PROPERTY_ADDED | Event.NODE_REMOVED,
  96                                         SlcJcrResultUtils.getSlcResultsBasePath(session), true,
  97                                         null, nodeTypes, false);
  98                 } catch (RepositoryException e) {
  99                         throw new SlcException("Cannot register listeners", e);
 100                 }
 101
 102         }
 103
 104         protected Table createTable(Composite parent) {
 105                 int style = SWT.BORDER | SWT.H_SCROLL | SWT.V_SCROLL
 106                                 | SWT.FULL_SELECTION | SWT.MULTI;
 107                 // does not work with RAP, commented for the time being
 108                 // | SWT.HIDE_SELECTION;
 109
 110                 Table table = new Table(parent, style);
 111
 112                 table.setLinesVisible(true);
 113                 table.setHeaderVisible(true);
 114
 115                 TableColumn column = new TableColumn(table, SWT.LEFT, 0);
 116                 column.setText("Date");
 117                 column.setWidth(200);
 118
 119                 column = new TableColumn(table, SWT.LEFT, 1);
 120                 column.setText("Id");
 121                 column.setWidth(300);
 122
 123                 return table;
 124         }
 125
 126         // public void refresh() {
 127         // viewer.refresh();
 128         // }
 129
 130         /*
 131          * METHODS TO BE OVERRIDDEN
 132          */
 133         protected IBaseLabelProvider createLabelProvider() {
 134                 return new ViewLabelProvider();
 135         }
 136
 137         protected void processDoubleClick(DoubleClickEvent evt) {
 138                 Object obj = ((IStructuredSelection) evt.getSelection())
 139                                 .getFirstElement();
 140                 try {
 141                         if (obj instanceof Node) {
 142                                 Node node = (Node) obj;
 143                                 // FIXME: open a default result editor
 144                                 if (node.isNodeType(SlcTypes.SLC_PROCESS)) {
 145                                         IWorkbenchPage activePage = PlatformUI.getWorkbench()
 146                                                         .getActiveWorkbenchWindow().getActivePage();
 147                                         activePage.openEditor(
 148                                                         new ProcessEditorInput(node.getPath()),
 149                                                         ProcessEditor.ID);
 150                                 }
 151                         }
 152                 } catch (Exception e) {
 153                         throw new SlcException("Cannot open " + obj, e);
 154                 }
 155         }
 156
 157         public void setFocus() {
 158                 viewer.getControl().setFocus();
 159         }
 160
 161         class ViewContentProvider implements IStructuredContentProvider {
 162
 163                 public Object[] getElements(Object inputElement) {
 164                         try {
 165                                 // TODO filter, optimize with virtual table, ...
 166                                 String sql = "SELECT * from [" + SlcTypes.SLC_TEST_RESULT
 167                                                 + "] ORDER BY [jcr:lastModified] DESC";
 168                                 Query query = session.getWorkspace().getQueryManager()
 169                                                 .createQuery(sql, Query.JCR_SQL2);
 170                                 // TODO paging
 171                                 query.setLimit(queryLimit);
 172                                 List<Node> nodes = new ArrayList<Node>();
 173                                 for (NodeIterator nit = query.execute().getNodes(); nit
 174                                                 .hasNext();) {
 175                                         nodes.add(nit.nextNode());
 176                                 }
 177                                 return nodes.toArray();
 178                         } catch (RepositoryException e) {
 179                                 throw new SlcException("Cannot retrieve processes", e);
 180                         }
 181                 }
 182
 183                 public void dispose() {
 184                 }
 185
 186                 public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {
 187                 }
 188
 189         }
 190
 191         class ViewLabelProvider extends ColumnLabelProvider implements
 192                         ITableLabelProvider {
 193
 194                 public Image getColumnImage(Object obj, int columnIndex) {
 195                         if (columnIndex != 0)
 196                                 return null;
 197                         try {
 198                                 Node node = (Node) obj;
 199                                 if (node.hasProperty(SLC_COMPLETED)) {
 200                                         // TODO
 201                                 }
 202                                 return null;
 203                         } catch (RepositoryException e) {
 204                                 throw new SlcException("Cannot get column text", e);
 205                         }
 206                 }
 207
 208                 public String getColumnText(Object obj, int index) {
 209                         try {
 210                                 Node node = (Node) obj;
 211                                 switch (index) {
 212
 213                                 case 0:
 214                                         if (node.hasProperty(SLC_COMPLETED)) {
 215                                                 return dateFormat
 216                                                                 .format(node.getProperty(SLC_COMPLETED)
 217                                                                                 .getDate().getTime());
 218                                         } else {
 219                                                 return "OPEN";
 220                                         }
 221                                 case 1:
 222                                         return node.getProperty(SlcNames.SLC_UUID).getString();
 223                                 }
 224                                 return getText(obj);
 225                         } catch (RepositoryException e) {
 226                                 throw new SlcException("Cannot get column text", e);
 227                         }
 228                 }
 229
 230         }
 231
 232         class ViewDoubleClickListener implements IDoubleClickListener {
 233                 public void doubleClick(DoubleClickEvent evt) {
 234                         processDoubleClick(evt);
 235                 }
 236
 237         }
 238
 239         class ResultObserver extends AsyncUiEventListener {
 240
 241                 public ResultObserver(Display display) {
 242                         super(display);
 243                 }
 244
 245                 @Override
 246                 protected Boolean willProcessInUiThread(List<Event> events)
 247                                 throws RepositoryException {
 248                         for (Event event : events) {
 249                                 // getLog().debug("Received event " + event);
 250                                 int eventType = event.getType();
 251                                 if (eventType == Event.NODE_REMOVED)
 252                                         return true;
 253                                 String path = event.getPath();
 254                                 int index = path.lastIndexOf('/');
 255                                 String propertyName = path.substring(index + 1);
 256                                 if (propertyName.equals(SLC_COMPLETED)
 257                                                 || propertyName.equals(SLC_UUID)) {
 258                                         return true;
 259                                 }
 260                         }
 261                         return false;
 262                 }
 263
 264                 protected void onEventInUiThread(List<Event> events)
 265                                 throws RepositoryException {
 266                         if (getLog().isTraceEnabled())
 267                                 getLog().trace("Refresh result list");
 268                         viewer.refresh();
 269                 }
 270         }
 271
 272         @Deprecated
 273         public void setSession(Session session) {
 274                 this.session = session;
 275         }
 276
 277         public void dispose() {
 278                 JcrUtils.unregisterQuietly(session.getWorkspace(), resultsObserver);
 279                 JcrUtils.logoutQuietly(session);
 280                 super.dispose();
 281         }
 282
 283         public void setRepository(Repository repository) {
 284                 try {
 285                         session = repository.login();
 286                 } catch (RepositoryException re) {
 287                         throw new SlcException("Unable to log in Repository " + repository,
 288                                         re);
 289                 }
 290         }
 291 }