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