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.List;
   7
   8 import javax.jcr.Node;
   9 import javax.jcr.Property;
  10 import javax.jcr.RepositoryException;
  11 import javax.jcr.Session;
  12 import javax.jcr.nodetype.NodeType;
  13 import javax.jcr.observation.Event;
  14 import javax.jcr.observation.EventIterator;
  15
  16 import org.argeo.ArgeoException;
  17 import org.argeo.eclipse.ui.jcr.AsyncUiEventListener;
  18 import org.argeo.eclipse.ui.jcr.DefaultNodeLabelProvider;
  19 import org.argeo.eclipse.ui.jcr.SimpleNodeContentProvider;
  20 import org.argeo.slc.SlcException;
  21 import org.argeo.slc.client.ui.SlcImages;
  22 import org.argeo.slc.client.ui.editors.ProcessEditor;
  23 import org.argeo.slc.client.ui.editors.ProcessEditorInput;
  24 import org.argeo.slc.jcr.SlcJcrConstants;
  25 import org.argeo.slc.jcr.SlcNames;
  26 import org.argeo.slc.jcr.SlcTypes;
  27 import org.eclipse.jface.viewers.ColumnViewerToolTipSupport;
  28 import org.eclipse.jface.viewers.DoubleClickEvent;
  29 import org.eclipse.jface.viewers.IDoubleClickListener;
  30 import org.eclipse.jface.viewers.IStructuredSelection;
  31 import org.eclipse.jface.viewers.ITableLabelProvider;
  32 import org.eclipse.jface.viewers.TreeViewer;
  33 import org.eclipse.swt.SWT;
  34 import org.eclipse.swt.dnd.DND;
  35 import org.eclipse.swt.dnd.DragSourceAdapter;
  36 import org.eclipse.swt.dnd.DragSourceEvent;
  37 import org.eclipse.swt.dnd.TextTransfer;
  38 import org.eclipse.swt.dnd.Transfer;
  39 import org.eclipse.swt.graphics.Image;
  40 import org.eclipse.swt.widgets.Composite;
  41 import org.eclipse.ui.IWorkbenchPage;
  42 import org.eclipse.ui.PlatformUI;
  43 import org.eclipse.ui.part.ViewPart;
  44
  45 /** JCR based view of the execution modules. */
  46 public class JcrExecutionModulesView extends ViewPart implements SlcTypes,
  47                 SlcNames {
  48         // private final static Log log = LogFactory
  49         // .getLog(JcrExecutionModulesView.class);
  50
  51         public static final String ID = "org.argeo.slc.client.ui.jcrExecutionModulesView";
  52
  53         private TreeViewer viewer;
  54
  55         private Session session;
  56
  57         public void createPartControl(Composite parent) {
  58                 viewer = new TreeViewer(parent, SWT.MULTI | SWT.H_SCROLL | SWT.V_SCROLL);
  59                 ColumnViewerToolTipSupport.enableFor(viewer);
  60
  61                 ViewContentProvider contentProvider = new ViewContentProvider(session);
  62
  63                 viewer.setContentProvider(contentProvider);
  64                 final ViewLabelProvider viewLabelProvider = new ViewLabelProvider();
  65                 viewer.setLabelProvider(viewLabelProvider);
  66                 viewer.setInput(getViewSite());
  67                 viewer.addDoubleClickListener(new ViewDoubleClickListener());
  68
  69                 Transfer[] tt = new Transfer[] { TextTransfer.getInstance() };
  70                 // Transfer[] tt = new Transfer[] { EditorInputTransfer.getInstance() };
  71                 int operations = DND.DROP_COPY | DND.DROP_MOVE;
  72                 viewer.addDragSupport(operations, tt, new ViewDragListener());
  73
  74                 try {
  75                         session.getWorkspace()
  76                                         .getObservationManager()
  77                                         .addEventListener(
  78                                                         new VmAgentObserver(),
  79                                                         Event.NODE_ADDED | Event.NODE_REMOVED
  80                                                                         | Event.NODE_MOVED,
  81                                                         SlcJcrConstants.VM_AGENT_FACTORY_PATH, true, null,
  82                                                         null, false);
  83                 } catch (RepositoryException e) {
  84                         throw new SlcException("Cannot add observer", e);
  85                 }
  86         }
  87
  88         public void setFocus() {
  89                 viewer.getControl().setFocus();
  90         }
  91
  92         public TreeViewer getViewer() {
  93                 return viewer;
  94         }
  95
  96         public void refreshView() {
  97                 viewer.setInput(getViewSite());
  98         }
  99
 100         class ViewContentProvider extends SimpleNodeContentProvider {
 101
 102                 public ViewContentProvider(Session session) {
 103                         super(session,
 104                                         new String[] { SlcJcrConstants.VM_AGENT_FACTORY_PATH });
 105                 }
 106
 107                 // @Override
 108                 // protected Object[] getChildren(Node node) throws RepositoryException
 109                 // {
 110                 // if (node.isNodeType(SlcTypes.SLC_AGENT_FACTORY)) {
 111                 // List<AgentNodesWrapper> wrappers = new
 112                 // ArrayList<AgentNodesWrapper>();
 113                 // for (NodeIterator nit = node.getNodes(); nit.hasNext();) {
 114                 // wrappers.add(new AgentNodesWrapper(nit.nextNode()));
 115                 // }
 116                 // return wrappers.toArray();
 117                 // }
 118                 // return super.getChildren(node);
 119                 // }
 120
 121                 @Override
 122                 protected Object[] sort(Object parent, Object[] children) {
 123                         Object[] sorted = new Object[children.length];
 124                         System.arraycopy(children, 0, sorted, 0, children.length);
 125                         Arrays.sort(sorted, new ViewComparator());
 126                         return sorted;
 127                 }
 128         }
 129
 130         static class ViewComparator implements Comparator<Object> {
 131
 132                 public int compare(Object o1, Object o2) {
 133                         try {
 134                                 if (o1 instanceof Node && o2 instanceof Node) {
 135                                         Node node1 = (Node) o1;
 136                                         Node node2 = (Node) o2;
 137
 138                                         if (node1.getName().equals(SLC_EXECUTION_SPECS))
 139                                                 return -100;
 140                                         if (node2.getName().equals(SLC_EXECUTION_SPECS))
 141                                                 return 100;
 142
 143                                         if (node1.isNodeType(SLC_EXECUTION_FLOW)
 144                                                         && node2.isNodeType(SLC_EXECUTION_FLOW)) {
 145                                                 return node1.getName().compareTo(node2.getName());
 146                                         } else if (node1.isNodeType(SLC_EXECUTION_FLOW)
 147                                                         && !node2.isNodeType(SLC_EXECUTION_FLOW)) {
 148                                                 return 1;
 149                                         } else if (!node1.isNodeType(SLC_EXECUTION_FLOW)
 150                                                         && node2.isNodeType(SLC_EXECUTION_FLOW)) {
 151                                                 return -1;
 152                                         } else {
 153                                                 // TODO: check title
 154                                                 return node1.getName().compareTo(node2.getName());
 155                                         }
 156                                 }
 157                         } catch (RepositoryException e) {
 158                                 throw new ArgeoException("Cannot compare " + o1 + " and " + o2,
 159                                                 e);
 160                         }
 161                         return 0;
 162                 }
 163
 164         }
 165
 166         // /** Wraps the execution modules of an agent. */
 167         // static class AgentNodesWrapper extends NodesWrapper {
 168         //
 169         // public AgentNodesWrapper(Node node) {
 170         // super(node);
 171         // }
 172         //
 173         // protected List<WrappedNode> getWrappedNodes()
 174         // throws RepositoryException {
 175         // List<WrappedNode> children = new ArrayList<WrappedNode>();
 176         // Node executionModules = getNode();
 177         // for (NodeIterator nit = executionModules.getNodes(); nit.hasNext();) {
 178         // for (NodeIterator nitVersions = nit.nextNode().getNodes(); nitVersions
 179         // .hasNext();) {
 180         // children.add(new WrappedNode(this, nitVersions.nextNode()));
 181         // }
 182         // }
 183         // return children;
 184         // }
 185         //
 186         // }
 187
 188         class VmAgentObserver extends AsyncUiEventListener {
 189                 protected void onEventInUiThread(EventIterator events) {
 190                         viewer.refresh();
 191                 }
 192         }
 193
 194         class ViewLabelProvider extends DefaultNodeLabelProvider implements
 195                         ITableLabelProvider {
 196
 197                 @Override
 198                 protected String getText(Node node) throws RepositoryException {
 199                         if (node.getName().equals(SLC_EXECUTION_SPECS))
 200                                 return "Execution Specifications";
 201                         else if (node.getPath().equals(
 202                                         SlcJcrConstants.VM_AGENT_FACTORY_PATH))
 203                                 return "Internal Agents";
 204                         return super.getText(node);
 205                 }
 206
 207                 @Override
 208                 public Image getImage(Node node) throws RepositoryException {
 209                         // we try to optimize a bit by putting deeper nodes first
 210                         if (node.getParent().isNodeType(
 211                                         SlcTypes.SLC_EXECUTION_SPEC_ATTRIBUTE))
 212                                 return SlcImages.CHOICES;
 213                         else if (node.isNodeType(SlcTypes.SLC_EXECUTION_SPEC_ATTRIBUTE))
 214                                 return SlcImages.EXECUTION_SPEC_ATTRIBUTE;
 215                         else if (node.isNodeType(SlcTypes.SLC_EXECUTION_SPEC))
 216                                 return SlcImages.EXECUTION_SPEC;
 217                         else if (node.getName().equals(SLC_EXECUTION_SPECS))
 218                                 return SlcImages.EXECUTION_SPECS;
 219                         else if (node.isNodeType(SlcTypes.SLC_EXECUTION_FLOW))
 220                                 return SlcImages.FLOW;
 221                         else if (node.isNodeType(SlcTypes.SLC_MODULE))
 222                                 return SlcImages.MODULE;
 223                         else if (node.isNodeType(SlcTypes.SLC_AGENT))
 224                                 return SlcImages.AGENT;
 225                         else if (node.isNodeType(SlcTypes.SLC_AGENT_FACTORY))
 226                                 return SlcImages.AGENT_FACTORY;
 227                         else
 228                                 return SlcImages.FOLDER;
 229                 }
 230
 231                 public String getToolTipText(Node node) throws RepositoryException {
 232                         if (node.isNodeType(NodeType.MIX_TITLE)
 233                                         && node.hasProperty(Property.JCR_DESCRIPTION))
 234                                 return node.getProperty(Property.JCR_DESCRIPTION).getString();
 235                         return super.getToolTipText(node);
 236                 }
 237
 238                 public String getColumnText(Object obj, int index) {
 239                         return getText(obj);
 240                 }
 241
 242                 public Image getColumnImage(Object obj, int index) {
 243                         return getImage(obj);
 244                 }
 245
 246         }
 247
 248         class ViewDoubleClickListener implements IDoubleClickListener {
 249                 public void doubleClick(DoubleClickEvent evt) {
 250                         Object obj = ((IStructuredSelection) evt.getSelection())
 251                                         .getFirstElement();
 252                         try {
 253                                 if (obj instanceof Node) {
 254                                         Node node = (Node) obj;
 255                                         if (node.isNodeType(SLC_EXECUTION_FLOW)) {
 256                                                 List<String> paths = new ArrayList<String>();
 257                                                 paths.add(node.getPath());
 258                                                 IWorkbenchPage activePage = PlatformUI.getWorkbench()
 259                                                                 .getActiveWorkbenchWindow().getActivePage();
 260                                                 activePage.openEditor(new ProcessEditorInput(paths,
 261                                                                 true), ProcessEditor.ID);
 262                                         }
 263                                 }
 264                         } catch (Exception e) {
 265                                 throw new SlcException("Cannot open " + obj, e);
 266                         }
 267                 }
 268
 269         }
 270
 271         class ViewDragListener extends DragSourceAdapter {
 272                 public void dragSetData(DragSourceEvent event) {
 273                         IStructuredSelection selection = (IStructuredSelection) viewer
 274                                         .getSelection();
 275                         if (selection.getFirstElement() instanceof Node) {
 276                                 Node node = (Node) selection.getFirstElement();
 277                                 // try {
 278                                 // if (node.isNodeType(SLC_EXECUTION_FLOW)) {
 279                                 // if (EditorInputTransfer.getInstance().isSupportedType(
 280                                 // event.dataType)) {
 281                                 // ProcessEditorInput pei = new ProcessEditorInput(
 282                                 // node.getPath());
 283                                 // EditorInputData eid = EditorInputTransfer
 284                                 // .createEditorInputData(ProcessEditor.ID,
 285                                 // pei);
 286                                 // event.data = new EditorInputTransfer.EditorInputData[] { eid
 287                                 // };
 288                                 //
 289                                 // }
 290                                 // }
 291                                 // } catch (RepositoryException e1) {
 292                                 // throw new SlcException("Cannot drag " + node, e1);
 293                                 // }
 294
 295                                 if (TextTransfer.getInstance().isSupportedType(event.dataType)) {
 296                                         try {
 297                                                 event.data = node.getPath();
 298                                         } catch (RepositoryException e1) {
 299                                                 // TODO Auto-generated catch block
 300                                                 e1.printStackTrace();
 301                                         }
 302                                 }
 303                         }
 304                 }
 305         }
 306
 307         public void setSession(Session session) {
 308                 this.session = session;
 309         }
 310
 311 }