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.SlcNames;
  38 import org.argeo.slc.SlcTypes;
  39 import org.argeo.slc.client.ui.ClientUiPlugin;
  40 import org.argeo.slc.client.ui.editors.ProcessEditor;
  41 import org.argeo.slc.client.ui.editors.ProcessEditorInput;
  42 import org.argeo.slc.jcr.SlcJcrResultUtils;
  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 Repository repository;
  69         private Session session;
  70
  71         private EventListener resultsObserver;
  72
  73         private DateFormat dateFormat = new SimpleDateFormat("EEE, dd MMM yyyy HH:mm:ss");
  74         private Integer queryLimit = 2000;
  75
  76         public void createPartControl(Composite parent) {
  77                 try {
  78                         session = repository.login();
  79                 } catch (RepositoryException e1) {
  80                         throw new SlcException("Cannot log in to repository");
  81                 }
  82
  83                 Table table = createTable(parent);
  84                 viewer = new TableViewer(table);
  85                 viewer.setLabelProvider(createLabelProvider());
  86                 viewer.setContentProvider(new ViewContentProvider());
  87                 viewer.setInput(getViewSite());
  88                 viewer.addDoubleClickListener(new ViewDoubleClickListener());
  89                 viewer.setComparer(new NodeElementComparer());
  90
  91                 getViewSite().setSelectionProvider(viewer);
  92
  93                 resultsObserver = new ResultObserver(viewer.getTable().getDisplay());
  94                 try {
  95                         ObservationManager observationManager = session.getWorkspace().getObservationManager();
  96                         String[] nodeTypes = { SlcTypes.SLC_TEST_RESULT };
  97                         // FIXME Will not be notified if empty result is deleted
  98                         observationManager.addEventListener(resultsObserver, Event.PROPERTY_ADDED | Event.NODE_REMOVED,
  99                                         SlcJcrResultUtils.getSlcResultsBasePath(session), true, null, nodeTypes, false);
 100                 } catch (RepositoryException e) {
 101                         throw new SlcException("Cannot register listeners", e);
 102                 }
 103
 104         }
 105
 106         protected Table createTable(Composite parent) {
 107                 int style = SWT.BORDER | SWT.H_SCROLL | SWT.V_SCROLL | SWT.FULL_SELECTION | SWT.MULTI;
 108                 // does not work with RAP, commented for the time being
 109                 // | SWT.HIDE_SELECTION;
 110
 111                 Table table = new Table(parent, style);
 112
 113                 table.setLinesVisible(true);
 114                 table.setHeaderVisible(true);
 115
 116                 TableColumn column = new TableColumn(table, SWT.LEFT, 0);
 117                 column.setText("Date");
 118                 column.setWidth(200);
 119
 120                 column = new TableColumn(table, SWT.LEFT, 1);
 121                 column.setText("Id");
 122                 column.setWidth(300);
 123
 124                 return table;
 125         }
 126
 127         // public void refresh() {
 128         // viewer.refresh();
 129         // }
 130
 131         /*
 132          * METHODS TO BE OVERRIDDEN
 133          */
 134         protected IBaseLabelProvider createLabelProvider() {
 135                 return new ViewLabelProvider();
 136         }
 137
 138         protected void processDoubleClick(DoubleClickEvent evt) {
 139                 Object obj = ((IStructuredSelection) evt.getSelection()).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().getActiveWorkbenchWindow().getActivePage();
 146                                         activePage.openEditor(new ProcessEditorInput(node.getPath()), ProcessEditor.ID);
 147                                 }
 148                         }
 149                 } catch (Exception e) {
 150                         throw new SlcException("Cannot open " + obj, e);
 151                 }
 152         }
 153
 154         public void setFocus() {
 155                 viewer.getControl().setFocus();
 156         }
 157
 158         class ViewContentProvider implements IStructuredContentProvider {
 159                 private static final long serialVersionUID = -4719077015405546260L;
 160
 161                 public Object[] getElements(Object inputElement) {
 162                         try {
 163                                 // TODO filter, optimize with virtual table, ...
 164                                 String sql = "SELECT * from [" + SlcTypes.SLC_TEST_RESULT + "] ORDER BY [jcr:lastModified] DESC";
 165                                 Query query = session.getWorkspace().getQueryManager().createQuery(sql, Query.JCR_SQL2);
 166                                 // TODO paging
 167                                 query.setLimit(queryLimit);
 168                                 List<Node> nodes = new ArrayList<Node>();
 169                                 for (NodeIterator nit = query.execute().getNodes(); nit.hasNext();) {
 170                                         nodes.add(nit.nextNode());
 171                                 }
 172                                 return nodes.toArray();
 173                         } catch (RepositoryException e) {
 174                                 throw new SlcException("Cannot retrieve processes", e);
 175                         }
 176                 }
 177
 178                 public void dispose() {
 179                 }
 180
 181                 public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {
 182                 }
 183
 184         }
 185
 186         class ViewLabelProvider extends ColumnLabelProvider implements ITableLabelProvider {
 187                 private static final long serialVersionUID = -6323202576386795247L;
 188
 189                 public Image getColumnImage(Object obj, int columnIndex) {
 190                         if (columnIndex != 0)
 191                                 return null;
 192                         try {
 193                                 Node node = (Node) obj;
 194                                 if (node.hasProperty(SLC_COMPLETED)) {
 195                                         // TODO
 196                                 }
 197                                 return null;
 198                         } catch (RepositoryException e) {
 199                                 throw new SlcException("Cannot get column text", e);
 200                         }
 201                 }
 202
 203                 public String getColumnText(Object obj, int index) {
 204                         try {
 205                                 Node node = (Node) obj;
 206                                 switch (index) {
 207
 208                                 case 0:
 209                                         if (node.hasProperty(SLC_COMPLETED)) {
 210                                                 return dateFormat.format(node.getProperty(SLC_COMPLETED).getDate().getTime());
 211                                         } else {
 212                                                 return "OPEN";
 213                                         }
 214                                 case 1:
 215                                         return node.getProperty(SlcNames.SLC_UUID).getString();
 216                                 }
 217                                 return getText(obj);
 218                         } catch (RepositoryException e) {
 219                                 throw new SlcException("Cannot get column text", e);
 220                         }
 221                 }
 222
 223         }
 224
 225         class ViewDoubleClickListener implements IDoubleClickListener {
 226                 public void doubleClick(DoubleClickEvent evt) {
 227                         processDoubleClick(evt);
 228                 }
 229
 230         }
 231
 232         class ResultObserver extends AsyncUiEventListener {
 233
 234                 public ResultObserver(Display display) {
 235                         super(display);
 236                 }
 237
 238                 @Override
 239                 protected Boolean willProcessInUiThread(List<Event> events) throws RepositoryException {
 240                         for (Event event : events) {
 241                                 // getLog().debug("Received event " + event);
 242                                 int eventType = event.getType();
 243                                 if (eventType == Event.NODE_REMOVED)
 244                                         return true;
 245                                 String path = event.getPath();
 246                                 int index = path.lastIndexOf('/');
 247                                 String propertyName = path.substring(index + 1);
 248                                 if (propertyName.equals(SLC_COMPLETED) || propertyName.equals(SLC_UUID)) {
 249                                         return true;
 250                                 }
 251                         }
 252                         return false;
 253                 }
 254
 255                 protected void onEventInUiThread(List<Event> events) throws RepositoryException {
 256                         if (getLog().isTraceEnabled())
 257                                 getLog().trace("Refresh result list");
 258                         viewer.refresh();
 259                 }
 260         }
 261
 262         public void dispose() {
 263                 JcrUtils.unregisterQuietly(session.getWorkspace(), resultsObserver);
 264                 JcrUtils.logoutQuietly(session);
 265                 super.dispose();
 266         }
 267
 268         public void setRepository(Repository repository) {
 269                 this.repository = repository;
 270         }
 271 }