software/no.uio.ifi.refaktor/src/no/uio/ifi/refaktor/handlers/AbstractSearchBasedExtractAndMoveMethodChangerHandler.java

   1 package no.uio.ifi.refaktor.handlers;
   2
   3 import no.uio.ifi.refaktor.change.changers.RefaktorChanger;
   4 import no.uio.ifi.refaktor.change.exceptions.RefaktorChangerException;
   5 import no.uio.ifi.refaktor.debugging.RefaktorDebug;
   6 import no.uio.ifi.refaktor.statistics.StatisticsAspect;
   7 import no.uio.ifi.refaktor.statistics.StatisticsAspect.Statistics;
   8
   9 import org.eclipse.core.commands.AbstractHandler;
  10 import org.eclipse.core.commands.ExecutionEvent;
  11 import org.eclipse.core.commands.ExecutionException;
  12 import org.eclipse.core.resources.IResource;
  13 import org.eclipse.core.runtime.CoreException;
  14 import org.eclipse.core.runtime.NullProgressMonitor;
  15 import org.eclipse.jdt.core.IJavaElement;
  16 import org.eclipse.jface.dialogs.MessageDialog;
  17 import org.eclipse.jface.viewers.ISelection;
  18 import org.eclipse.jface.viewers.ITreeSelection;
  19 import org.eclipse.ui.IWorkbenchWindow;
  20 import org.eclipse.ui.handlers.HandlerUtil;
  21
  22 public abstract class AbstractSearchBasedExtractAndMoveMethodChangerHandler extends AbstractHandler {
  23
  24         @Override
  25         public Object execute(ExecutionEvent event) throws ExecutionException {
  26                 ISelection selection = HandlerUtil.getCurrentSelectionChecked(event);
  27                 IWorkbenchWindow window = HandlerUtil.getActiveWorkbenchWindowChecked(event);
  28
  29                 assert selection instanceof ITreeSelection;
  30                 ITreeSelection treeSelection = (ITreeSelection) selection;
  31                 Object element = treeSelection.getFirstElement();
  32
  33                 initializeStatistics(element);
  34
  35                 RefaktorChanger changer = createChanger(element);
  36                 try {
  37                         changer.checkPreconditions();
  38                         changer.execute(new NullProgressMonitor());
  39                         MessageDialog.openInformation(window.getShell(), "no.uio.ifi.refaktor", changer.getClass() + " has been excuted");
  40                         return null;
  41                 } catch (RefaktorChangerException e) {
  42                         RefaktorDebug.log(e);
  43                 } catch (CoreException e) {
  44                         RefaktorDebug.log(e);
  45                 } finally {
  46                         Statistics snapshot = StatisticsAspect.getSnapshot();
  47                         RefaktorDebug.println("\n\n" + snapshot);
  48                         snapshot.generateReportFile();
  49                 }
  50
  51                 MessageDialog.openInformation(window.getShell(), "no.uio.ifi.refaktor", changer.getClass() + " did not execute correctly");
  52                 return null;
  53         }
  54
  55         private void initializeStatistics(Object element) {
  56                 IResource resource = null;
  57
  58                 if (element instanceof IJavaElement) {
  59                         IJavaElement javaElement = (IJavaElement) element;
  60                         if (javaElement.exists()) {
  61                                 resource = javaElement.getResource();
  62                         }
  63                 } else if (element instanceof IResource) {
  64                         resource = (IResource) element;
  65                 }
  66
  67                 if (resource != null && resource.exists()) {
  68                         StatisticsAspect.init(resource.getProject().getName());
  69                 } else {
  70                         StatisticsAspect.init();
  71                 }
  72         }
  73
  74         protected abstract RefaktorChanger createChanger(Object element);
  75
  76 }