software/no.uio.ifi.refaktor/src/no/uio/ifi/refaktor/change/executors/ExtractAndMoveMethodExecutor.java

   1 package no.uio.ifi.refaktor.change.executors;
   2
   3 import no.uio.ifi.refaktor.analyze.ExtractAndMoveMethodCandidate;
   4 import no.uio.ifi.refaktor.change.exceptions.RefactoringNotExecutedException;
   5 import no.uio.ifi.refaktor.utils.CompilationUnitTextSelection;
   6
   7 import org.eclipse.core.runtime.CoreException;
   8 import org.eclipse.core.runtime.IProgressMonitor;
   9 import org.eclipse.jdt.core.JavaModelException;
  10 import org.eclipse.jdt.core.dom.IVariableBinding;
  11
  12 /**
  13  * This {@link Executor} composes the refactorings known as 'Extract Method' and 'Move Method'.
  14  *
  15  * It takes the result of an analysis (see {@link ExtractAndMoveMethodCandidate})
  16  * and uses its textSelection, new method name and original target. First it executes
  17  * an {@link ExtractMethodRefactoringExecutor} and then a
  18  * {@link MoveMethodRefactoringExecutor}.
  19  */
  20 public class ExtractAndMoveMethodExecutor implements Executor {
  21         private final CompilationUnitTextSelection textSelection;
  22         private final IVariableBinding originalTarget;
  23         private String newMethodName;
  24         private ExtractAndMoveMethodCandidate analysisResult;
  25         private ExtractMethodPostExecutionResources postExecutionResources;
  26         private IProgressMonitor monitor;
  27
  28         public ExtractAndMoveMethodExecutor(ExtractAndMoveMethodCandidate analysisResult) {
  29                 this(analysisResult.textSelection, analysisResult.getNewMethodName(), analysisResult.calculateOriginalTarget());
  30                 this.analysisResult = analysisResult;
  31         }
  32
  33         public ExtractAndMoveMethodExecutor(CompilationUnitTextSelection textSelection, String newMethodName, IVariableBinding originalTarget) {
  34                 this.textSelection = textSelection;
  35                 setNewMethodName(newMethodName);
  36                 this.originalTarget = originalTarget;
  37         }
  38
  39         public void setNewMethodName(String newMethodName) {
  40                 this.newMethodName = newMethodName;
  41         }
  42
  43         @Override
  44         public void execute(IProgressMonitor monitor) throws CoreException {
  45                 this.monitor = monitor;
  46                 try {
  47                         performExtractMethodRefactoringAndCollectPostExecutionResources();
  48                         performMoveMethodRefactoring();
  49                 } catch (RefactoringNotExecutedException e) {
  50                         throw new RefactoringNotExecutedException(e.getMessage() + " - originating from " + analysisResult.getOriginatingMethodName()
  51                                         + " with target " + originalTarget.getName() + " and text selection " + analysisResult.textSelection);
  52                 }
  53         }
  54
  55         private void performExtractMethodRefactoringAndCollectPostExecutionResources() throws CoreException {
  56                 ExtractMethodRefactoringExecutor executor = new ExtractMethodRefactoringExecutor(textSelection, newMethodName);
  57                 executor.execute(monitor);
  58                 postExecutionResources = executor.getPostExecutionResources();
  59         }
  60
  61         private void performMoveMethodRefactoring() throws JavaModelException, CoreException {
  62                 MoveMethodRefactoringExecutor executor = new MoveMethodRefactoringExecutor(postExecutionResources, originalTarget);
  63                 executor.execute(monitor);
  64         }
  65 }