plugins/net.mograsim.plugin.core/src/net/mograsim/plugin/nature/AddMograsimNatureHandler.java

   1 package net.mograsim.plugin.nature;
   2
   3 import java.util.Iterator;
   4
   5 import org.eclipse.core.commands.AbstractHandler;
   6 import org.eclipse.core.commands.ExecutionEvent;
   7 import org.eclipse.core.commands.ExecutionException;
   8 import org.eclipse.core.resources.IProject;
   9 import org.eclipse.core.resources.IProjectDescription;
  10 import org.eclipse.core.resources.IWorkspace;
  11 import org.eclipse.core.resources.ResourcesPlugin;
  12 import org.eclipse.core.runtime.CoreException;
  13 import org.eclipse.core.runtime.IAdaptable;
  14 import org.eclipse.core.runtime.IStatus;
  15 import org.eclipse.core.runtime.MultiStatus;
  16 import org.eclipse.jface.viewers.ISelection;
  17 import org.eclipse.jface.viewers.IStructuredSelection;
  18 import org.eclipse.ui.handlers.HandlerUtil;
  19
  20 public class AddMograsimNatureHandler extends AbstractHandler
  21 {
  22         @Override
  23         public Object execute(ExecutionEvent event) throws ExecutionException
  24         {
  25                 ISelection selection = HandlerUtil.getCurrentSelection(event);
  26                 //
  27
  28                 MultiStatus ms = new MultiStatus("net.mograsim.plugin.core", 42, "MograsimNature Conversion", null);
  29
  30                 if (selection instanceof IStructuredSelection)
  31                 {
  32                         for (Iterator<?> it = ((IStructuredSelection) selection).iterator(); it.hasNext();)
  33                         {
  34                                 Object element = it.next();
  35                                 IProject project = null;
  36                                 if (element instanceof IProject)
  37                                 {
  38                                         project = (IProject) element;
  39                                 } else if (element instanceof IAdaptable)
  40                                 {
  41                                         project = ((IAdaptable) element).getAdapter(IProject.class);
  42                                 }
  43                                 if (project != null)
  44                                 {
  45                                         try
  46                                         {
  47                                                 ms.add(toggleNature(project));
  48                                         }
  49                                         catch (CoreException e)
  50                                         {
  51                                                 // TODO log something
  52                                                 throw new ExecutionException("Failed to toggle nature", e);
  53                                         }
  54                                 }
  55                         }
  56                 }
  57
  58                 return ms.getSeverity();
  59         }
  60
  61         /**
  62          * Adds Mograsim nature on a project
  63          *
  64          * @param project to have Mograsim nature
  65          * @return
  66          */
  67         private IStatus toggleNature(IProject project) throws CoreException
  68         {
  69                 IProjectDescription description = project.getDescription();
  70                 String[] natures = description.getNatureIds();
  71
  72                 // Add the nature
  73                 String[] newNatures = new String[natures.length + 1];
  74                 System.arraycopy(natures, 0, newNatures, 0, natures.length);
  75                 newNatures[natures.length] = MograsimNature.NATURE_ID;
  76
  77                 IWorkspace workspace = ResourcesPlugin.getWorkspace();
  78                 IStatus status = workspace.validateNatureSet(newNatures);
  79
  80                 // only apply new nature, if the status is ok
  81                 if (status.getCode() == IStatus.OK)
  82                 {
  83                         description.setNatureIds(newNatures);
  84                         project.setDescription(description, null);
  85                 }
  86
  87                 return status;
  88         }
  89 }