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.apache.commons.logging.Log;
  22 import org.apache.commons.logging.LogFactory;
  23 import org.argeo.ArgeoException;
  24 import org.argeo.eclipse.ui.jcr.AsyncUiEventListener;
  25 import org.argeo.eclipse.ui.jcr.DefaultNodeLabelProvider;
  26 import org.argeo.eclipse.ui.jcr.NodeElementComparer;
  27 import org.argeo.eclipse.ui.jcr.SimpleNodeContentProvider;
  28 import org.argeo.eclipse.ui.specific.EclipseUiSpecificUtils;
  29 import org.argeo.slc.BasicNameVersion;
  30 import org.argeo.slc.NameVersion;
  31 import org.argeo.slc.SlcException;
  32 import org.argeo.slc.client.ui.SlcImages;
  33 import org.argeo.slc.client.ui.editors.ProcessEditor;
  34 import org.argeo.slc.client.ui.editors.ProcessEditorInput;
  35 import org.argeo.slc.execution.ExecutionModulesManager;
  36 import org.argeo.slc.jcr.SlcJcrConstants;
  37 import org.argeo.slc.jcr.SlcNames;
  38 import org.argeo.slc.jcr.SlcTypes;
  39 import org.eclipse.core.runtime.IProgressMonitor;
  40 import org.eclipse.core.runtime.IStatus;
  41 import org.eclipse.core.runtime.Status;
  42 import org.eclipse.core.runtime.jobs.Job;
  43 import org.eclipse.jface.viewers.DoubleClickEvent;
  44 import org.eclipse.jface.viewers.IDoubleClickListener;
  45 import org.eclipse.jface.viewers.IStructuredSelection;
  46 import org.eclipse.jface.viewers.ITableLabelProvider;
  47 import org.eclipse.jface.viewers.TreeViewer;
  48 import org.eclipse.swt.SWT;
  49 import org.eclipse.swt.dnd.DND;
  50 import org.eclipse.swt.dnd.DragSourceAdapter;
  51 import org.eclipse.swt.dnd.DragSourceEvent;
  52 import org.eclipse.swt.dnd.TextTransfer;
  53 import org.eclipse.swt.dnd.Transfer;
  54 import org.eclipse.swt.graphics.Image;
  55 import org.eclipse.swt.widgets.Composite;
  56 import org.eclipse.swt.widgets.Display;
  57 import org.eclipse.ui.IWorkbenchPage;
  58 import org.eclipse.ui.PlatformUI;
  59 import org.eclipse.ui.part.ViewPart;
  60
  61 /** JCR based view of the execution modules. */
  62 public class JcrExecutionModulesView extends ViewPart implements SlcTypes,
  63                 SlcNames {
  64         private final static Log log = LogFactory
  65                         .getLog(JcrExecutionModulesView.class);
  66
  67         public static final String ID = "org.argeo.slc.client.ui.jcrExecutionModulesView";
  68
  69         private TreeViewer viewer;
  70
  71         private Session session;
  72
  73         private ExecutionModulesManager modulesManager;
  74
  75         public void createPartControl(Composite parent) {
  76                 viewer = new TreeViewer(parent, SWT.MULTI | SWT.H_SCROLL | SWT.V_SCROLL);
  77                 EclipseUiSpecificUtils.enableToolTipSupport(viewer);
  78
  79                 ViewContentProvider contentProvider = new ViewContentProvider(session);
  80                 viewer.setContentProvider(contentProvider);
  81                 viewer.setComparer(new NodeElementComparer());
  82                 final ViewLabelProvider viewLabelProvider = new ViewLabelProvider();
  83                 viewer.setLabelProvider(viewLabelProvider);
  84                 viewer.setInput(getViewSite());
  85                 viewer.addDoubleClickListener(new ViewDoubleClickListener());
  86                 getViewSite().setSelectionProvider(viewer);
  87
  88                 Transfer[] tt = new Transfer[] { TextTransfer.getInstance() };
  89                 // Transfer[] tt = new Transfer[] { EditorInputTransfer.getInstance() };
  90                 int operations = DND.DROP_COPY | DND.DROP_MOVE;
  91                 viewer.addDragSupport(operations, tt, new ViewDragListener());
  92
  93                 try {
  94                         String[] nodeTypes = { SlcTypes.SLC_AGENT,
  95                                         SlcTypes.SLC_AGENT_FACTORY, SlcTypes.SLC_EXECUTION_MODULE };
  96                         session.getWorkspace()
  97                                         .getObservationManager()
  98                                         .addEventListener(
  99                                                         new VmAgentObserver(viewer.getTree().getDisplay()),
 100                                                         Event.NODE_ADDED | Event.NODE_REMOVED
 101                                                                         | Event.NODE_MOVED,
 102                                                         SlcJcrConstants.VM_AGENT_FACTORY_PATH, true, null,
 103                                                         nodeTypes, false);
 104                 } catch (RepositoryException e) {
 105                         throw new SlcException("Cannot add observer", e);
 106                 }
 107         }
 108
 109         public void setFocus() {
 110                 viewer.getControl().setFocus();
 111         }
 112
 113         public TreeViewer getViewer() {
 114                 return viewer;
 115         }
 116
 117         public void refreshView() {
 118                 viewer.setInput(getViewSite());
 119         }
 120
 121         class ViewContentProvider extends SimpleNodeContentProvider {
 122
 123                 public ViewContentProvider(Session session) {
 124                         super(session,
 125                                         new String[] { SlcJcrConstants.VM_AGENT_FACTORY_PATH });
 126                 }
 127
 128                 // @Override
 129                 // protected Object[] getChildren(Node node) throws RepositoryException
 130                 // {
 131                 // if (node.isNodeType(SlcTypes.SLC_AGENT_FACTORY)) {
 132                 // List<AgentNodesWrapper> wrappers = new
 133                 // ArrayList<AgentNodesWrapper>();
 134                 // for (NodeIterator nit = node.getNodes(); nit.hasNext();) {
 135                 // wrappers.add(new AgentNodesWrapper(nit.nextNode()));
 136                 // }
 137                 // return wrappers.toArray();
 138                 // }
 139                 // return super.getChildren(node);
 140                 // }
 141
 142                 @Override
 143                 protected Object[] sort(Object parent, Object[] children) {
 144                         Object[] sorted = new Object[children.length];
 145                         System.arraycopy(children, 0, sorted, 0, children.length);
 146                         Arrays.sort(sorted, new ViewComparator());
 147                         return sorted;
 148                 }
 149
 150                 @Override
 151                 protected List<Node> filterChildren(List<Node> children)
 152                                 throws RepositoryException {
 153                         for (Iterator<Node> it = children.iterator(); it.hasNext();) {
 154                                 Node node = it.next();
 155                                 // execution spec definitions
 156                                 if (node.getName().equals(SLC_EXECUTION_SPECS))
 157                                         it.remove();
 158                                 // flow values
 159                                 else if (node.getParent().isNodeType(
 160                                                 SlcTypes.SLC_EXECUTION_FLOW))
 161                                         it.remove();
 162                         }
 163                         return super.filterChildren(children);
 164                 }
 165
 166                 @Override
 167                 public boolean hasChildren(Object element) {
 168                         if (element instanceof Node) {
 169                                 Node node = (Node) element;
 170                                 try {
 171                                         if (node.isNodeType(SlcTypes.SLC_EXECUTION_FLOW))
 172                                                 return false;
 173                                 } catch (RepositoryException e) {
 174                                         throw new SlcException("Cannot check has children", e);
 175                                 }
 176                         }
 177                         return super.hasChildren(element);
 178                 }
 179         }
 180
 181         static class ViewComparator implements Comparator<Object> {
 182
 183                 public int compare(Object o1, Object o2) {
 184                         try {
 185                                 if (o1 instanceof Node && o2 instanceof Node) {
 186                                         Node node1 = (Node) o1;
 187                                         Node node2 = (Node) o2;
 188
 189                                         if (node1.getName().equals(SLC_EXECUTION_SPECS))
 190                                                 return -100;
 191                                         if (node2.getName().equals(SLC_EXECUTION_SPECS))
 192                                                 return 100;
 193
 194                                         if (node1.isNodeType(SLC_EXECUTION_FLOW)
 195                                                         && node2.isNodeType(SLC_EXECUTION_FLOW)) {
 196                                                 return node1.getName().compareTo(node2.getName());
 197                                         } else if (node1.isNodeType(SLC_EXECUTION_FLOW)
 198                                                         && !node2.isNodeType(SLC_EXECUTION_FLOW)) {
 199                                                 return 1;
 200                                         } else if (!node1.isNodeType(SLC_EXECUTION_FLOW)
 201                                                         && node2.isNodeType(SLC_EXECUTION_FLOW)) {
 202                                                 return -1;
 203                                         } else {
 204                                                 // TODO: check title
 205                                                 return node1.getName().compareTo(node2.getName());
 206                                         }
 207                                 }
 208                         } catch (RepositoryException e) {
 209                                 throw new ArgeoException("Cannot compare " + o1 + " and " + o2,
 210                                                 e);
 211                         }
 212                         return 0;
 213                 }
 214
 215         }
 216
 217         // /** Wraps the execution modules of an agent. */
 218         // static class AgentNodesWrapper extends NodesWrapper {
 219         //
 220         // public AgentNodesWrapper(Node node) {
 221         // super(node);
 222         // }
 223         //
 224         // protected List<WrappedNode> getWrappedNodes()
 225         // throws RepositoryException {
 226         // List<WrappedNode> children = new ArrayList<WrappedNode>();
 227         // Node executionModules = getNode();
 228         // for (NodeIterator nit = executionModules.getNodes(); nit.hasNext();) {
 229         // for (NodeIterator nitVersions = nit.nextNode().getNodes(); nitVersions
 230         // .hasNext();) {
 231         // children.add(new WrappedNode(this, nitVersions.nextNode()));
 232         // }
 233         // }
 234         // return children;
 235         // }
 236         //
 237         // }
 238
 239         class VmAgentObserver extends AsyncUiEventListener {
 240
 241                 public VmAgentObserver(Display display) {
 242                         super(display);
 243                 }
 244
 245                 protected void onEventInUiThread(List<Event> events) {
 246                         for (Event event : events) {
 247                                 try {
 248                                         String path = event.getPath();
 249
 250                                         if (session.itemExists(path)) {
 251                                                 Node parentNode = session.getNode(path);// .getParent();
 252                                                 if (log.isTraceEnabled())
 253                                                         log.trace("Refresh " + parentNode + " after event "
 254                                                                         + event);
 255                                                 viewer.refresh(parentNode);
 256                                         }
 257                                 } catch (RepositoryException e) {
 258                                         log.warn("Cannot process event " + event + ": " + e);
 259                                 }
 260                         }
 261
 262                         // try {
 263                         // Node vmAgentNode = session
 264                         // .getNode(SlcJcrConstants.VM_AGENT_FACTORY_PATH);
 265                         // viewer.refresh(vmAgentNode);
 266                         // } catch (RepositoryException e) {
 267                         // log.warn("Cannot process event : " + e);
 268                         // }
 269                         // TODO: optimize based on event
 270                         viewer.refresh();
 271                 }
 272         }
 273
 274         class ViewLabelProvider extends DefaultNodeLabelProvider implements
 275                         ITableLabelProvider {
 276
 277                 @Override
 278                 protected String getText(Node node) throws RepositoryException {
 279                         if (node.isNodeType(NodeType.MIX_TITLE)
 280                                         && node.hasProperty(Property.JCR_TITLE))
 281                                 return node.getProperty(Property.JCR_TITLE).getString();
 282                         else 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                                                 final NameVersion nameVersion = new BasicNameVersion(
 346                                                                 name, version);
 347                                                 Boolean started = node.getProperty(SLC_STARTED)
 348                                                                 .getBoolean();
 349
 350                                                 Job job;
 351                                                 if (started) {
 352                                                         job = new Job("Stop " + nameVersion) {
 353                                                                 protected IStatus run(IProgressMonitor monitor) {
 354                                                                         monitor.beginTask("Stop " + nameVersion, 1);
 355                                                                         modulesManager.stop(nameVersion);
 356                                                                         monitor.worked(1);
 357                                                                         return Status.OK_STATUS;
 358                                                                 }
 359                                                         };
 360                                                 } else {
 361                                                         job = new Job("Start " + nameVersion) {
 362                                                                 protected IStatus run(IProgressMonitor monitor) {
 363                                                                         monitor.beginTask("Start " + nameVersion, 1);
 364                                                                         modulesManager.start(nameVersion);
 365                                                                         monitor.worked(1);
 366                                                                         return Status.OK_STATUS;
 367                                                                 }
 368                                                         };
 369                                                 }
 370                                                 job.setUser(true);
 371                                                 job.schedule();
 372                                         } else {
 373                                                 String path = node.getPath();
 374                                                 // TODO factorize with editor
 375                                                 QueryManager qm = node.getSession().getWorkspace()
 376                                                                 .getQueryManager();
 377                                                 String statement = "SELECT * FROM ["
 378                                                                 + SlcTypes.SLC_EXECUTION_FLOW
 379                                                                 + "] WHERE ISDESCENDANTNODE(['" + path
 380                                                                 + "']) OR ISSAMENODE(['" + path + "'])";
 381                                                 // log.debug(statement);
 382                                                 Query query = qm.createQuery(statement, Query.JCR_SQL2);
 383
 384                                                 // order paths
 385                                                 SortedSet<String> paths = new TreeSet<String>();
 386                                                 for (NodeIterator nit = query.execute().getNodes(); nit
 387                                                                 .hasNext();) {
 388                                                         paths.add(nit.nextNode().getPath());
 389                                                 }
 390
 391                                                 // List<String> paths = new ArrayList<String>();
 392                                                 // paths.add(node.getPath());
 393                                                 IWorkbenchPage activePage = PlatformUI.getWorkbench()
 394                                                                 .getActiveWorkbenchWindow().getActivePage();
 395                                                 activePage.openEditor(new ProcessEditorInput(
 396                                                                 new ArrayList<String>(paths), true),
 397                                                                 ProcessEditor.ID);
 398                                         }
 399                                 }
 400                         } catch (Exception e) {
 401                                 throw new SlcException("Cannot open " + obj, e);
 402                         }
 403                 }
 404
 405         }
 406
 407         class ViewDragListener extends DragSourceAdapter {
 408                 public void dragSetData(DragSourceEvent event) {
 409                         IStructuredSelection selection = (IStructuredSelection) viewer
 410                                         .getSelection();
 411                         if (selection.getFirstElement() instanceof Node) {
 412                                 Node node = (Node) selection.getFirstElement();
 413                                 // try {
 414                                 // if (node.isNodeType(SLC_EXECUTION_FLOW)) {
 415                                 // if (EditorInputTransfer.getInstance().isSupportedType(
 416                                 // event.dataType)) {
 417                                 // ProcessEditorInput pei = new ProcessEditorInput(
 418                                 // node.getPath());
 419                                 // EditorInputData eid = EditorInputTransfer
 420                                 // .createEditorInputData(ProcessEditor.ID,
 421                                 // pei);
 422                                 // event.data = new EditorInputTransfer.EditorInputData[] { eid
 423                                 // };
 424                                 //
 425                                 // }
 426                                 // }
 427                                 // } catch (RepositoryException e1) {
 428                                 // throw new SlcException("Cannot drag " + node, e1);
 429                                 // }
 430
 431                                 if (TextTransfer.getInstance().isSupportedType(event.dataType)) {
 432                                         try {
 433                                                 event.data = node.getPath();
 434                                         } catch (RepositoryException e1) {
 435                                                 // TODO Auto-generated catch block
 436                                                 e1.printStackTrace();
 437                                         }
 438                                 }
 439                         }
 440                 }
 441         }
 442
 443         public void setSession(Session session) {
 444                 this.session = session;
 445         }
 446
 447         public void setModulesManager(ExecutionModulesManager modulesManager) {
 448                 this.modulesManager = modulesManager;
 449         }
 450
 451 }