eclipse/plugins/org.argeo.slc.client.ui/src/main/java/org/argeo/slc/client/ui/views/JcrExecutionModulesView.java

   1 package org.argeo.slc.client.ui.views;
   2
   3 import java.util.ArrayList;
   4 import java.util.Arrays;
   5 import java.util.Comparator;
   6 import java.util.Iterator;
   7 import java.util.List;
   8 import java.util.SortedSet;
   9 import java.util.TreeSet;
  10
  11 import javax.jcr.Node;
  12 import javax.jcr.NodeIterator;
  13 import javax.jcr.Property;
  14 import javax.jcr.RepositoryException;
  15 import javax.jcr.Session;
  16 import javax.jcr.nodetype.NodeType;
  17 import javax.jcr.observation.Event;
  18 import javax.jcr.observation.EventIterator;
  19 import javax.jcr.query.Query;
  20 import javax.jcr.query.QueryManager;
  21
  22 import org.argeo.ArgeoException;
  23 import org.argeo.eclipse.ui.jcr.AsyncUiEventListener;
  24 import org.argeo.eclipse.ui.jcr.DefaultNodeLabelProvider;
  25 import org.argeo.eclipse.ui.jcr.SimpleNodeContentProvider;
  26 import org.argeo.slc.BasicNameVersion;
  27 import org.argeo.slc.NameVersion;
  28 import org.argeo.slc.SlcException;
  29 import org.argeo.slc.client.ui.SlcImages;
  30 import org.argeo.slc.client.ui.editors.ProcessEditor;
  31 import org.argeo.slc.client.ui.editors.ProcessEditorInput;
  32 import org.argeo.slc.execution.ExecutionModulesManager;
  33 import org.argeo.slc.jcr.SlcJcrConstants;
  34 import org.argeo.slc.jcr.SlcNames;
  35 import org.argeo.slc.jcr.SlcTypes;
  36 import org.eclipse.jface.viewers.ColumnViewerToolTipSupport;
  37 import org.eclipse.jface.viewers.DoubleClickEvent;
  38 import org.eclipse.jface.viewers.IDoubleClickListener;
  39 import org.eclipse.jface.viewers.IStructuredSelection;
  40 import org.eclipse.jface.viewers.ITableLabelProvider;
  41 import org.eclipse.jface.viewers.TreeViewer;
  42 import org.eclipse.jface.viewers.Viewer;
  43 import org.eclipse.swt.SWT;
  44 import org.eclipse.swt.dnd.DND;
  45 import org.eclipse.swt.dnd.DragSourceAdapter;
  46 import org.eclipse.swt.dnd.DragSourceEvent;
  47 import org.eclipse.swt.dnd.TextTransfer;
  48 import org.eclipse.swt.dnd.Transfer;
  49 import org.eclipse.swt.graphics.Image;
  50 import org.eclipse.swt.widgets.Composite;
  51 import org.eclipse.ui.IWorkbenchPage;
  52 import org.eclipse.ui.PlatformUI;
  53 import org.eclipse.ui.part.ViewPart;
  54
  55 /** JCR based view of the execution modules. */
  56 public class JcrExecutionModulesView extends ViewPart implements SlcTypes,
  57                 SlcNames {
  58         // private final static Log log = LogFactory
  59         // .getLog(JcrExecutionModulesView.class);
  60
  61         public static final String ID = "org.argeo.slc.client.ui.jcrExecutionModulesView";
  62
  63         private TreeViewer viewer;
  64
  65         private Session session;
  66
  67         private ExecutionModulesManager modulesManager;
  68
  69         public void createPartControl(Composite parent) {
  70                 viewer = new TreeViewer(parent, SWT.MULTI | SWT.H_SCROLL | SWT.V_SCROLL);
  71
  72                 // FIXME : does not work in RAP, find a way to have it for RCP only
  73                 //ColumnViewerToolTipSupport.enableFor(viewer);
  74
  75                 ViewContentProvider contentProvider = new ViewContentProvider(session);
  76
  77                 viewer.setContentProvider(contentProvider);
  78                 final ViewLabelProvider viewLabelProvider = new ViewLabelProvider();
  79                 viewer.setLabelProvider(viewLabelProvider);
  80                 viewer.setInput(getViewSite());
  81                 viewer.addDoubleClickListener(new ViewDoubleClickListener());
  82                 getViewSite().setSelectionProvider(viewer);
  83
  84                 Transfer[] tt = new Transfer[] { TextTransfer.getInstance() };
  85                 // Transfer[] tt = new Transfer[] { EditorInputTransfer.getInstance() };
  86                 int operations = DND.DROP_COPY | DND.DROP_MOVE;
  87                 viewer.addDragSupport(operations, tt, new ViewDragListener());
  88
  89                 try {
  90                         session.getWorkspace()
  91                                         .getObservationManager()
  92                                         .addEventListener(
  93                                                         new VmAgentObserver(),
  94                                                         Event.NODE_ADDED | Event.NODE_REMOVED
  95                                                                         | Event.NODE_MOVED,
  96                                                         SlcJcrConstants.VM_AGENT_FACTORY_PATH, true, null,
  97                                                         null, false);
  98                 } catch (RepositoryException e) {
  99                         throw new SlcException("Cannot add observer", e);
 100                 }
 101         }
 102
 103         public void setFocus() {
 104                 viewer.getControl().setFocus();
 105         }
 106
 107         public TreeViewer getViewer() {
 108                 return viewer;
 109         }
 110
 111         public void refreshView() {
 112                 viewer.setInput(getViewSite());
 113         }
 114
 115         class ViewContentProvider extends SimpleNodeContentProvider {
 116
 117                 public ViewContentProvider(Session session) {
 118                         super(session,
 119                                         new String[] { SlcJcrConstants.VM_AGENT_FACTORY_PATH });
 120                 }
 121
 122                 // @Override
 123                 // protected Object[] getChildren(Node node) throws RepositoryException
 124                 // {
 125                 // if (node.isNodeType(SlcTypes.SLC_AGENT_FACTORY)) {
 126                 // List<AgentNodesWrapper> wrappers = new
 127                 // ArrayList<AgentNodesWrapper>();
 128                 // for (NodeIterator nit = node.getNodes(); nit.hasNext();) {
 129                 // wrappers.add(new AgentNodesWrapper(nit.nextNode()));
 130                 // }
 131                 // return wrappers.toArray();
 132                 // }
 133                 // return super.getChildren(node);
 134                 // }
 135
 136                 @Override
 137                 protected Object[] sort(Object parent, Object[] children) {
 138                         Object[] sorted = new Object[children.length];
 139                         System.arraycopy(children, 0, sorted, 0, children.length);
 140                         Arrays.sort(sorted, new ViewComparator());
 141                         return sorted;
 142                 }
 143
 144                 @Override
 145                 protected List<Node> filterChildren(List<Node> children)
 146                                 throws RepositoryException {
 147                         for (Iterator<Node> it = children.iterator(); it.hasNext();) {
 148                                 Node node = it.next();
 149                                 // execution spec definitions
 150                                 if (node.getName().equals(SLC_EXECUTION_SPECS))
 151                                         it.remove();
 152                                 // flow values
 153                                 else if (node.getParent().isNodeType(
 154                                                 SlcTypes.SLC_EXECUTION_FLOW))
 155                                         it.remove();
 156                         }
 157                         return super.filterChildren(children);
 158                 }
 159
 160                 @Override
 161                 public boolean hasChildren(Object element) {
 162                         if (element instanceof Node) {
 163                                 Node node = (Node) element;
 164                                 try {
 165                                         if (node.isNodeType(SlcTypes.SLC_EXECUTION_FLOW))
 166                                                 return false;
 167                                 } catch (RepositoryException e) {
 168                                         throw new SlcException("Cannot check has children", e);
 169                                 }
 170                         }
 171                         return super.hasChildren(element);
 172                 }
 173         }
 174
 175         static class ViewComparator implements Comparator<Object> {
 176
 177                 public int compare(Object o1, Object o2) {
 178                         try {
 179                                 if (o1 instanceof Node && o2 instanceof Node) {
 180                                         Node node1 = (Node) o1;
 181                                         Node node2 = (Node) o2;
 182
 183                                         if (node1.getName().equals(SLC_EXECUTION_SPECS))
 184                                                 return -100;
 185                                         if (node2.getName().equals(SLC_EXECUTION_SPECS))
 186                                                 return 100;
 187
 188                                         if (node1.isNodeType(SLC_EXECUTION_FLOW)
 189                                                         && node2.isNodeType(SLC_EXECUTION_FLOW)) {
 190                                                 return node1.getName().compareTo(node2.getName());
 191                                         } else if (node1.isNodeType(SLC_EXECUTION_FLOW)
 192                                                         && !node2.isNodeType(SLC_EXECUTION_FLOW)) {
 193                                                 return 1;
 194                                         } else if (!node1.isNodeType(SLC_EXECUTION_FLOW)
 195                                                         && node2.isNodeType(SLC_EXECUTION_FLOW)) {
 196                                                 return -1;
 197                                         } else {
 198                                                 // TODO: check title
 199                                                 return node1.getName().compareTo(node2.getName());
 200                                         }
 201                                 }
 202                         } catch (RepositoryException e) {
 203                                 throw new ArgeoException("Cannot compare " + o1 + " and " + o2,
 204                                                 e);
 205                         }
 206                         return 0;
 207                 }
 208
 209         }
 210
 211         // /** Wraps the execution modules of an agent. */
 212         // static class AgentNodesWrapper extends NodesWrapper {
 213         //
 214         // public AgentNodesWrapper(Node node) {
 215         // super(node);
 216         // }
 217         //
 218         // protected List<WrappedNode> getWrappedNodes()
 219         // throws RepositoryException {
 220         // List<WrappedNode> children = new ArrayList<WrappedNode>();
 221         // Node executionModules = getNode();
 222         // for (NodeIterator nit = executionModules.getNodes(); nit.hasNext();) {
 223         // for (NodeIterator nitVersions = nit.nextNode().getNodes(); nitVersions
 224         // .hasNext();) {
 225         // children.add(new WrappedNode(this, nitVersions.nextNode()));
 226         // }
 227         // }
 228         // return children;
 229         // }
 230         //
 231         // }
 232
 233         class VmAgentObserver extends AsyncUiEventListener {
 234                 protected void onEventInUiThread(EventIterator events) {
 235                         // List<Node> baseNodes = ((SimpleNodeContentProvider) viewer
 236                         // .getContentProvider()).getBaseNodes();
 237                         // Node baseNode = baseNodes.get(0);
 238                         //
 239                         // while (events.hasNext()) {
 240                         // Event event = events.nextEvent();
 241                         // try {
 242                         // String path = event.getPath();
 243                         // String baseNodePath = baseNode.getPath();
 244                         // if (path.startsWith(baseNodePath)) {
 245                         // String relPath = path
 246                         // .substring(baseNodePath.length() + 1);
 247                         // log.debug("relPath: " + relPath);
 248                         // if (baseNode.hasNode(relPath)) {
 249                         // Node refreshNode = baseNode.getNode(relPath);
 250                         // log.debug("refreshNode: " + refreshNode);
 251                         // viewer.refresh(refreshNode);
 252                         // }
 253                         //
 254                         // }
 255                         // // if (log.isDebugEnabled())
 256                         // // log.debug("Process " + path + ": " + event);
 257                         //
 258                         // // if (session.itemExists(path)) {
 259                         // // Node parentNode = session.getNode(path).getParent();
 260                         // // log.debug("Parent: " + parentNode);
 261                         // // viewer.refresh(parentNode);
 262                         // // }
 263                         // } catch (RepositoryException e) {
 264                         // log.warn("Cannot process event " + event + ": " + e);
 265                         // }
 266                         // }
 267
 268                         // try {
 269                         // Node vmAgentNode = session
 270                         // .getNode(SlcJcrConstants.VM_AGENT_FACTORY_PATH);
 271                         // viewer.refresh(vmAgentNode);
 272                         // } catch (RepositoryException e) {
 273                         // log.warn("Cannot process event : " + e);
 274                         // }
 275                         // TODO: optimize based on event
 276                         viewer.refresh();
 277                 }
 278         }
 279
 280         class ViewLabelProvider extends DefaultNodeLabelProvider implements
 281                         ITableLabelProvider {
 282
 283                 @Override
 284                 protected String getText(Node node) throws RepositoryException {
 285                         if (node.getName().equals(SLC_EXECUTION_SPECS))
 286                                 return "Execution Specifications";
 287                         else if (node.getPath().equals(
 288                                         SlcJcrConstants.VM_AGENT_FACTORY_PATH))
 289                                 return "Internal Agents";
 290                         return super.getText(node);
 291                 }
 292
 293                 @Override
 294                 public Image getImage(Node node) throws RepositoryException {
 295                         // we try to optimize a bit by putting deeper nodes first
 296                         if (node.getParent().isNodeType(
 297                                         SlcTypes.SLC_EXECUTION_SPEC_ATTRIBUTE))
 298                                 return SlcImages.CHOICES;
 299                         else if (node.isNodeType(SlcTypes.SLC_EXECUTION_SPEC_ATTRIBUTE))
 300                                 return SlcImages.EXECUTION_SPEC_ATTRIBUTE;
 301                         else if (node.isNodeType(SlcTypes.SLC_EXECUTION_SPEC))
 302                                 return SlcImages.EXECUTION_SPEC;
 303                         else if (node.getName().equals(SLC_EXECUTION_SPECS))
 304                                 return SlcImages.EXECUTION_SPECS;
 305                         else if (node.isNodeType(SlcTypes.SLC_EXECUTION_FLOW))
 306                                 return SlcImages.FLOW;
 307                         else if (node.isNodeType(SlcTypes.SLC_MODULE)) {
 308                                 if (node.getProperty(SLC_STARTED).getBoolean())
 309                                         return SlcImages.MODULE;
 310                                 else
 311                                         return SlcImages.MODULE_STOPPED;
 312                         } else if (node.isNodeType(SlcTypes.SLC_AGENT))
 313                                 return SlcImages.AGENT;
 314                         else if (node.isNodeType(SlcTypes.SLC_AGENT_FACTORY))
 315                                 return SlcImages.AGENT_FACTORY;
 316                         else
 317                                 return SlcImages.FOLDER;
 318                 }
 319
 320                 public String getToolTipText(Node node) throws RepositoryException {
 321                         if (node.isNodeType(NodeType.MIX_TITLE)
 322                                         && node.hasProperty(Property.JCR_DESCRIPTION))
 323                                 return node.getProperty(Property.JCR_DESCRIPTION).getString();
 324                         return super.getToolTipText(node);
 325                 }
 326
 327                 public String getColumnText(Object obj, int index) {
 328                         return getText(obj);
 329                 }
 330
 331                 public Image getColumnImage(Object obj, int index) {
 332                         return getImage(obj);
 333                 }
 334
 335         }
 336
 337         class ViewDoubleClickListener implements IDoubleClickListener {
 338                 public void doubleClick(DoubleClickEvent evt) {
 339                         Object obj = ((IStructuredSelection) evt.getSelection())
 340                                         .getFirstElement();
 341                         try {
 342                                 if (obj instanceof Node) {
 343                                         Node node = (Node) obj;
 344                                         if (node.isNodeType(SLC_EXECUTION_MODULE)) {
 345                                                 String name = node.getProperty(SLC_NAME).getString();
 346                                                 String version = node.getProperty(SLC_VERSION)
 347                                                                 .getString();
 348                                                 NameVersion nameVersion = new BasicNameVersion(name,
 349                                                                 version);
 350                                                 Boolean started = node.getProperty(SLC_STARTED)
 351                                                                 .getBoolean();
 352                                                 if (started) {
 353                                                         modulesManager.stop(nameVersion);
 354                                                 } else {
 355                                                         modulesManager.start(nameVersion);
 356                                                 }
 357                                         } else {
 358                                                 String path = node.getPath();
 359                                                 // TODO factorize with editor
 360                                                 QueryManager qm = node.getSession().getWorkspace()
 361                                                                 .getQueryManager();
 362                                                 String statement = "SELECT * FROM ["
 363                                                                 + SlcTypes.SLC_EXECUTION_FLOW
 364                                                                 + "] WHERE ISDESCENDANTNODE(['" + path
 365                                                                 + "']) OR ISSAMENODE(['" + path + "'])";
 366                                                 // log.debug(statement);
 367                                                 Query query = qm.createQuery(statement, Query.JCR_SQL2);
 368
 369                                                 // order paths
 370                                                 SortedSet<String> paths = new TreeSet<String>();
 371                                                 for (NodeIterator nit = query.execute().getNodes(); nit
 372                                                                 .hasNext();) {
 373                                                         paths.add(nit.nextNode().getPath());
 374                                                 }
 375
 376                                                 // List<String> paths = new ArrayList<String>();
 377                                                 // paths.add(node.getPath());
 378                                                 IWorkbenchPage activePage = PlatformUI.getWorkbench()
 379                                                                 .getActiveWorkbenchWindow().getActivePage();
 380                                                 activePage.openEditor(new ProcessEditorInput(
 381                                                                 new ArrayList<String>(paths), true),
 382                                                                 ProcessEditor.ID);
 383                                         }
 384                                 }
 385                         } catch (Exception e) {
 386                                 throw new SlcException("Cannot open " + obj, e);
 387                         }
 388                 }
 389
 390         }
 391
 392         class ViewDragListener extends DragSourceAdapter {
 393                 public void dragSetData(DragSourceEvent event) {
 394                         IStructuredSelection selection = (IStructuredSelection) viewer
 395                                         .getSelection();
 396                         if (selection.getFirstElement() instanceof Node) {
 397                                 Node node = (Node) selection.getFirstElement();
 398                                 // try {
 399                                 // if (node.isNodeType(SLC_EXECUTION_FLOW)) {
 400                                 // if (EditorInputTransfer.getInstance().isSupportedType(
 401                                 // event.dataType)) {
 402                                 // ProcessEditorInput pei = new ProcessEditorInput(
 403                                 // node.getPath());
 404                                 // EditorInputData eid = EditorInputTransfer
 405                                 // .createEditorInputData(ProcessEditor.ID,
 406                                 // pei);
 407                                 // event.data = new EditorInputTransfer.EditorInputData[] { eid
 408                                 // };
 409                                 //
 410                                 // }
 411                                 // }
 412                                 // } catch (RepositoryException e1) {
 413                                 // throw new SlcException("Cannot drag " + node, e1);
 414                                 // }
 415
 416                                 if (TextTransfer.getInstance().isSupportedType(event.dataType)) {
 417                                         try {
 418                                                 event.data = node.getPath();
 419                                         } catch (RepositoryException e1) {
 420                                                 // TODO Auto-generated catch block
 421                                                 e1.printStackTrace();
 422                                         }
 423                                 }
 424                         }
 425                 }
 426         }
 427
 428         public void setSession(Session session) {
 429                 this.session = session;
 430         }
 431
 432         public void setModulesManager(ExecutionModulesManager modulesManager) {
 433                 this.modulesManager = modulesManager;
 434         }
 435
 436 }