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.query.Query;
  19 import javax.jcr.query.QueryManager;
  20
  21 import org.argeo.ArgeoException;
  22 import org.argeo.eclipse.ui.jcr.AsyncUiEventListener;
  23 import org.argeo.eclipse.ui.jcr.DefaultNodeLabelProvider;
  24 import org.argeo.eclipse.ui.jcr.SimpleNodeContentProvider;
  25 import org.argeo.slc.BasicNameVersion;
  26 import org.argeo.slc.NameVersion;
  27 import org.argeo.slc.SlcException;
  28 import org.argeo.slc.client.ui.SlcImages;
  29 import org.argeo.slc.client.ui.editors.ProcessEditor;
  30 import org.argeo.slc.client.ui.editors.ProcessEditorInput;
  31 import org.argeo.slc.execution.ExecutionModulesManager;
  32 import org.argeo.slc.jcr.SlcJcrConstants;
  33 import org.argeo.slc.jcr.SlcNames;
  34 import org.argeo.slc.jcr.SlcTypes;
  35 import org.eclipse.jface.viewers.DoubleClickEvent;
  36 import org.eclipse.jface.viewers.IDoubleClickListener;
  37 import org.eclipse.jface.viewers.IStructuredSelection;
  38 import org.eclipse.jface.viewers.ITableLabelProvider;
  39 import org.eclipse.jface.viewers.TreeViewer;
  40 import org.eclipse.swt.SWT;
  41 import org.eclipse.swt.dnd.DND;
  42 import org.eclipse.swt.dnd.DragSourceAdapter;
  43 import org.eclipse.swt.dnd.DragSourceEvent;
  44 import org.eclipse.swt.dnd.TextTransfer;
  45 import org.eclipse.swt.dnd.Transfer;
  46 import org.eclipse.swt.graphics.Image;
  47 import org.eclipse.swt.widgets.Composite;
  48 import org.eclipse.swt.widgets.Display;
  49 import org.eclipse.ui.IWorkbenchPage;
  50 import org.eclipse.ui.PlatformUI;
  51 import org.eclipse.ui.part.ViewPart;
  52
  53 /** JCR based view of the execution modules. */
  54 public class JcrExecutionModulesView extends ViewPart implements SlcTypes,
  55                 SlcNames {
  56         // private final static Log log = LogFactory
  57         // .getLog(JcrExecutionModulesView.class);
  58
  59         public static final String ID = "org.argeo.slc.client.ui.jcrExecutionModulesView";
  60
  61         private TreeViewer viewer;
  62
  63         private Session session;
  64
  65         private ExecutionModulesManager modulesManager;
  66
  67         public void createPartControl(Composite parent) {
  68                 viewer = new TreeViewer(parent, SWT.MULTI | SWT.H_SCROLL | SWT.V_SCROLL);
  69
  70                 // FIXME : does not work in RAP, find a way to have it for RCP only
  71                 // ColumnViewerToolTipSupport.enableFor(viewer);
  72
  73                 ViewContentProvider contentProvider = new ViewContentProvider(session);
  74
  75                 viewer.setContentProvider(contentProvider);
  76                 final ViewLabelProvider viewLabelProvider = new ViewLabelProvider();
  77                 viewer.setLabelProvider(viewLabelProvider);
  78                 viewer.setInput(getViewSite());
  79                 viewer.addDoubleClickListener(new ViewDoubleClickListener());
  80                 getViewSite().setSelectionProvider(viewer);
  81
  82                 Transfer[] tt = new Transfer[] { TextTransfer.getInstance() };
  83                 // Transfer[] tt = new Transfer[] { EditorInputTransfer.getInstance() };
  84                 int operations = DND.DROP_COPY | DND.DROP_MOVE;
  85                 viewer.addDragSupport(operations, tt, new ViewDragListener());
  86
  87                 try {
  88                         session.getWorkspace()
  89                                         .getObservationManager()
  90                                         .addEventListener(
  91                                                         new VmAgentObserver(viewer.getTree().getDisplay()),
  92                                                         Event.NODE_ADDED | Event.NODE_REMOVED
  93                                                                         | Event.NODE_MOVED,
  94                                                         SlcJcrConstants.VM_AGENT_FACTORY_PATH, true, null,
  95                                                         null, false);
  96                 } catch (RepositoryException e) {
  97                         throw new SlcException("Cannot add observer", e);
  98                 }
  99         }
 100
 101         public void setFocus() {
 102                 viewer.getControl().setFocus();
 103         }
 104
 105         public TreeViewer getViewer() {
 106                 return viewer;
 107         }
 108
 109         public void refreshView() {
 110                 viewer.setInput(getViewSite());
 111         }
 112
 113         class ViewContentProvider extends SimpleNodeContentProvider {
 114
 115                 public ViewContentProvider(Session session) {
 116                         super(session,
 117                                         new String[] { SlcJcrConstants.VM_AGENT_FACTORY_PATH });
 118                 }
 119
 120                 // @Override
 121                 // protected Object[] getChildren(Node node) throws RepositoryException
 122                 // {
 123                 // if (node.isNodeType(SlcTypes.SLC_AGENT_FACTORY)) {
 124                 // List<AgentNodesWrapper> wrappers = new
 125                 // ArrayList<AgentNodesWrapper>();
 126                 // for (NodeIterator nit = node.getNodes(); nit.hasNext();) {
 127                 // wrappers.add(new AgentNodesWrapper(nit.nextNode()));
 128                 // }
 129                 // return wrappers.toArray();
 130                 // }
 131                 // return super.getChildren(node);
 132                 // }
 133
 134                 @Override
 135                 protected Object[] sort(Object parent, Object[] children) {
 136                         Object[] sorted = new Object[children.length];
 137                         System.arraycopy(children, 0, sorted, 0, children.length);
 138                         Arrays.sort(sorted, new ViewComparator());
 139                         return sorted;
 140                 }
 141
 142                 @Override
 143                 protected List<Node> filterChildren(List<Node> children)
 144                                 throws RepositoryException {
 145                         for (Iterator<Node> it = children.iterator(); it.hasNext();) {
 146                                 Node node = it.next();
 147                                 // execution spec definitions
 148                                 if (node.getName().equals(SLC_EXECUTION_SPECS))
 149                                         it.remove();
 150                                 // flow values
 151                                 else if (node.getParent().isNodeType(
 152                                                 SlcTypes.SLC_EXECUTION_FLOW))
 153                                         it.remove();
 154                         }
 155                         return super.filterChildren(children);
 156                 }
 157
 158                 @Override
 159                 public boolean hasChildren(Object element) {
 160                         if (element instanceof Node) {
 161                                 Node node = (Node) element;
 162                                 try {
 163                                         if (node.isNodeType(SlcTypes.SLC_EXECUTION_FLOW))
 164                                                 return false;
 165                                 } catch (RepositoryException e) {
 166                                         throw new SlcException("Cannot check has children", e);
 167                                 }
 168                         }
 169                         return super.hasChildren(element);
 170                 }
 171         }
 172
 173         static class ViewComparator implements Comparator<Object> {
 174
 175                 public int compare(Object o1, Object o2) {
 176                         try {
 177                                 if (o1 instanceof Node && o2 instanceof Node) {
 178                                         Node node1 = (Node) o1;
 179                                         Node node2 = (Node) o2;
 180
 181                                         if (node1.getName().equals(SLC_EXECUTION_SPECS))
 182                                                 return -100;
 183                                         if (node2.getName().equals(SLC_EXECUTION_SPECS))
 184                                                 return 100;
 185
 186                                         if (node1.isNodeType(SLC_EXECUTION_FLOW)
 187                                                         && node2.isNodeType(SLC_EXECUTION_FLOW)) {
 188                                                 return node1.getName().compareTo(node2.getName());
 189                                         } else if (node1.isNodeType(SLC_EXECUTION_FLOW)
 190                                                         && !node2.isNodeType(SLC_EXECUTION_FLOW)) {
 191                                                 return 1;
 192                                         } else if (!node1.isNodeType(SLC_EXECUTION_FLOW)
 193                                                         && node2.isNodeType(SLC_EXECUTION_FLOW)) {
 194                                                 return -1;
 195                                         } else {
 196                                                 // TODO: check title
 197                                                 return node1.getName().compareTo(node2.getName());
 198                                         }
 199                                 }
 200                         } catch (RepositoryException e) {
 201                                 throw new ArgeoException("Cannot compare " + o1 + " and " + o2,
 202                                                 e);
 203                         }
 204                         return 0;
 205                 }
 206
 207         }
 208
 209         // /** Wraps the execution modules of an agent. */
 210         // static class AgentNodesWrapper extends NodesWrapper {
 211         //
 212         // public AgentNodesWrapper(Node node) {
 213         // super(node);
 214         // }
 215         //
 216         // protected List<WrappedNode> getWrappedNodes()
 217         // throws RepositoryException {
 218         // List<WrappedNode> children = new ArrayList<WrappedNode>();
 219         // Node executionModules = getNode();
 220         // for (NodeIterator nit = executionModules.getNodes(); nit.hasNext();) {
 221         // for (NodeIterator nitVersions = nit.nextNode().getNodes(); nitVersions
 222         // .hasNext();) {
 223         // children.add(new WrappedNode(this, nitVersions.nextNode()));
 224         // }
 225         // }
 226         // return children;
 227         // }
 228         //
 229         // }
 230
 231         class VmAgentObserver extends AsyncUiEventListener {
 232
 233                 public VmAgentObserver(Display display) {
 234                         super(display);
 235                 }
 236
 237                 protected void onEventInUiThread(List<Event> events) {
 238                         // List<Node> baseNodes = ((SimpleNodeContentProvider) viewer
 239                         // .getContentProvider()).getBaseNodes();
 240                         // Node baseNode = baseNodes.get(0);
 241                         //
 242                         // while (events.hasNext()) {
 243                         // Event event = events.nextEvent();
 244                         // try {
 245                         // String path = event.getPath();
 246                         // String baseNodePath = baseNode.getPath();
 247                         // if (path.startsWith(baseNodePath)) {
 248                         // String relPath = path
 249                         // .substring(baseNodePath.length() + 1);
 250                         // log.debug("relPath: " + relPath);
 251                         // if (baseNode.hasNode(relPath)) {
 252                         // Node refreshNode = baseNode.getNode(relPath);
 253                         // log.debug("refreshNode: " + refreshNode);
 254                         // viewer.refresh(refreshNode);
 255                         // }
 256                         //
 257                         // }
 258                         // // if (log.isDebugEnabled())
 259                         // // log.debug("Process " + path + ": " + event);
 260                         //
 261                         // // if (session.itemExists(path)) {
 262                         // // Node parentNode = session.getNode(path).getParent();
 263                         // // log.debug("Parent: " + parentNode);
 264                         // // viewer.refresh(parentNode);
 265                         // // }
 266                         // } catch (RepositoryException e) {
 267                         // log.warn("Cannot process event " + event + ": " + e);
 268                         // }
 269                         // }
 270
 271                         // try {
 272                         // Node vmAgentNode = session
 273                         // .getNode(SlcJcrConstants.VM_AGENT_FACTORY_PATH);
 274                         // viewer.refresh(vmAgentNode);
 275                         // } catch (RepositoryException e) {
 276                         // log.warn("Cannot process event : " + e);
 277                         // }
 278                         // TODO: optimize based on event
 279                         viewer.refresh();
 280                 }
 281         }
 282
 283         class ViewLabelProvider extends DefaultNodeLabelProvider implements
 284                         ITableLabelProvider {
 285
 286                 @Override
 287                 protected String getText(Node node) throws RepositoryException {
 288                         if (node.getName().equals(SLC_EXECUTION_SPECS))
 289                                 return "Execution Specifications";
 290                         else if (node.getPath().equals(
 291                                         SlcJcrConstants.VM_AGENT_FACTORY_PATH))
 292                                 return "Internal Agents";
 293                         return super.getText(node);
 294                 }
 295
 296                 @Override
 297                 public Image getImage(Node node) throws RepositoryException {
 298                         // we try to optimize a bit by putting deeper nodes first
 299                         if (node.getParent().isNodeType(
 300                                         SlcTypes.SLC_EXECUTION_SPEC_ATTRIBUTE))
 301                                 return SlcImages.CHOICES;
 302                         else if (node.isNodeType(SlcTypes.SLC_EXECUTION_SPEC_ATTRIBUTE))
 303                                 return SlcImages.EXECUTION_SPEC_ATTRIBUTE;
 304                         else if (node.isNodeType(SlcTypes.SLC_EXECUTION_SPEC))
 305                                 return SlcImages.EXECUTION_SPEC;
 306                         else if (node.getName().equals(SLC_EXECUTION_SPECS))
 307                                 return SlcImages.EXECUTION_SPECS;
 308                         else if (node.isNodeType(SlcTypes.SLC_EXECUTION_FLOW))
 309                                 return SlcImages.FLOW;
 310                         else if (node.isNodeType(SlcTypes.SLC_MODULE)) {
 311                                 if (node.getProperty(SLC_STARTED).getBoolean())
 312                                         return SlcImages.MODULE;
 313                                 else
 314                                         return SlcImages.MODULE_STOPPED;
 315                         } else if (node.isNodeType(SlcTypes.SLC_AGENT))
 316                                 return SlcImages.AGENT;
 317                         else if (node.isNodeType(SlcTypes.SLC_AGENT_FACTORY))
 318                                 return SlcImages.AGENT_FACTORY;
 319                         else
 320                                 return SlcImages.FOLDER;
 321                 }
 322
 323                 public String getToolTipText(Node node) throws RepositoryException {
 324                         if (node.isNodeType(NodeType.MIX_TITLE)
 325                                         && node.hasProperty(Property.JCR_DESCRIPTION))
 326                                 return node.getProperty(Property.JCR_DESCRIPTION).getString();
 327                         return super.getToolTipText(node);
 328                 }
 329
 330                 public String getColumnText(Object obj, int index) {
 331                         return getText(obj);
 332                 }
 333
 334                 public Image getColumnImage(Object obj, int index) {
 335                         return getImage(obj);
 336                 }
 337
 338         }
 339
 340         class ViewDoubleClickListener implements IDoubleClickListener {
 341                 public void doubleClick(DoubleClickEvent evt) {
 342                         Object obj = ((IStructuredSelection) evt.getSelection())
 343                                         .getFirstElement();
 344                         try {
 345                                 if (obj instanceof Node) {
 346                                         Node node = (Node) obj;
 347                                         if (node.isNodeType(SLC_EXECUTION_MODULE)) {
 348                                                 String name = node.getProperty(SLC_NAME).getString();
 349                                                 String version = node.getProperty(SLC_VERSION)
 350                                                                 .getString();
 351                                                 NameVersion nameVersion = new BasicNameVersion(name,
 352                                                                 version);
 353                                                 Boolean started = node.getProperty(SLC_STARTED)
 354                                                                 .getBoolean();
 355                                                 if (started) {
 356                                                         modulesManager.stop(nameVersion);
 357                                                 } else {
 358                                                         modulesManager.start(nameVersion);
 359                                                 }
 360                                         } else {
 361                                                 String path = node.getPath();
 362                                                 // TODO factorize with editor
 363                                                 QueryManager qm = node.getSession().getWorkspace()
 364                                                                 .getQueryManager();
 365                                                 String statement = "SELECT * FROM ["
 366                                                                 + SlcTypes.SLC_EXECUTION_FLOW
 367                                                                 + "] WHERE ISDESCENDANTNODE(['" + path
 368                                                                 + "']) OR ISSAMENODE(['" + path + "'])";
 369                                                 // log.debug(statement);
 370                                                 Query query = qm.createQuery(statement, Query.JCR_SQL2);
 371
 372                                                 // order paths
 373                                                 SortedSet<String> paths = new TreeSet<String>();
 374                                                 for (NodeIterator nit = query.execute().getNodes(); nit
 375                                                                 .hasNext();) {
 376                                                         paths.add(nit.nextNode().getPath());
 377                                                 }
 378
 379                                                 // List<String> paths = new ArrayList<String>();
 380                                                 // paths.add(node.getPath());
 381                                                 IWorkbenchPage activePage = PlatformUI.getWorkbench()
 382                                                                 .getActiveWorkbenchWindow().getActivePage();
 383                                                 activePage.openEditor(new ProcessEditorInput(
 384                                                                 new ArrayList<String>(paths), true),
 385                                                                 ProcessEditor.ID);
 386                                         }
 387                                 }
 388                         } catch (Exception e) {
 389                                 throw new SlcException("Cannot open " + obj, e);
 390                         }
 391                 }
 392
 393         }
 394
 395         class ViewDragListener extends DragSourceAdapter {
 396                 public void dragSetData(DragSourceEvent event) {
 397                         IStructuredSelection selection = (IStructuredSelection) viewer
 398                                         .getSelection();
 399                         if (selection.getFirstElement() instanceof Node) {
 400                                 Node node = (Node) selection.getFirstElement();
 401                                 // try {
 402                                 // if (node.isNodeType(SLC_EXECUTION_FLOW)) {
 403                                 // if (EditorInputTransfer.getInstance().isSupportedType(
 404                                 // event.dataType)) {
 405                                 // ProcessEditorInput pei = new ProcessEditorInput(
 406                                 // node.getPath());
 407                                 // EditorInputData eid = EditorInputTransfer
 408                                 // .createEditorInputData(ProcessEditor.ID,
 409                                 // pei);
 410                                 // event.data = new EditorInputTransfer.EditorInputData[] { eid
 411                                 // };
 412                                 //
 413                                 // }
 414                                 // }
 415                                 // } catch (RepositoryException e1) {
 416                                 // throw new SlcException("Cannot drag " + node, e1);
 417                                 // }
 418
 419                                 if (TextTransfer.getInstance().isSupportedType(event.dataType)) {
 420                                         try {
 421                                                 event.data = node.getPath();
 422                                         } catch (RepositoryException e1) {
 423                                                 // TODO Auto-generated catch block
 424                                                 e1.printStackTrace();
 425                                         }
 426                                 }
 427                         }
 428                 }
 429         }
 430
 431         public void setSession(Session session) {
 432                 this.session = session;
 433         }
 434
 435         public void setModulesManager(ExecutionModulesManager modulesManager) {
 436                 this.modulesManager = modulesManager;
 437         }
 438
 439 }