Case Study: adding data and statistics

[ifi-stolz-refaktor.git] / case-study / jdt-before / core refactoring / org / eclipse / jdt / internal / corext / refactoring / changes / CompilationUnitReorgChange.java

diff --git a/case-study/jdt-before/core refactoring/org/eclipse/jdt/internal/corext/refactoring/changes/CompilationUnitReorgChange.java b/case-study/jdt-before/core refactoring/org/eclipse/jdt/internal/corext/refactoring/changes/CompilationUnitReorgChange.java
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+++ b/case-study/jdt-before/core refactoring/org/eclipse/jdt/internal/corext/refactoring/changes/CompilationUnitReorgChange.java
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+/*******************************************************************************
+ * Copyright (c) 2000, 2011 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *     IBM Corporation - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.jdt.internal.corext.refactoring.changes;
+
+import org.eclipse.core.runtime.CoreException;
+import org.eclipse.core.runtime.IProgressMonitor;
+import org.eclipse.core.runtime.OperationCanceledException;
+import org.eclipse.core.runtime.SubProgressMonitor;
+
+import org.eclipse.core.resources.IResource;
+import org.eclipse.core.resources.mapping.ResourceMapping;
+
+import org.eclipse.ltk.core.refactoring.Change;
+import org.eclipse.ltk.core.refactoring.participants.ReorgExecutionLog;
+import org.eclipse.ltk.core.refactoring.resource.ResourceChange;
+
+import org.eclipse.jdt.core.ICompilationUnit;
+import org.eclipse.jdt.core.IPackageFragment;
+import org.eclipse.jdt.core.JavaCore;
+
+import org.eclipse.jdt.internal.corext.refactoring.reorg.INewNameQuery;
+import org.eclipse.jdt.internal.corext.util.JavaElementResourceMapping;
+
+import org.eclipse.jdt.ui.JavaElementLabels;
+
+abstract class CompilationUnitReorgChange extends ResourceChange {
+
+       private String fCuHandle;
+       private String fOldPackageHandle;
+       private String fNewPackageHandle;
+
+       private INewNameQuery fNewNameQuery;
+
+       CompilationUnitReorgChange(ICompilationUnit cu, IPackageFragment dest, INewNameQuery newNameQuery) {
+               fCuHandle= cu.getHandleIdentifier();
+               fNewPackageHandle= dest.getHandleIdentifier();
+               fNewNameQuery= newNameQuery;
+               fOldPackageHandle= cu.getParent().getHandleIdentifier();
+       }
+
+       CompilationUnitReorgChange(ICompilationUnit cu, IPackageFragment dest) {
+               this(cu, dest, null);
+       }
+
+       CompilationUnitReorgChange(String oldPackageHandle, String newPackageHandle, String cuHandle) {
+               fOldPackageHandle= oldPackageHandle;
+               fNewPackageHandle= newPackageHandle;
+               fCuHandle= cuHandle;
+       }
+
+       @Override
+       public final Change perform(IProgressMonitor pm) throws CoreException, OperationCanceledException {
+               pm.beginTask(getName(), 1);
+               try {
+                       ICompilationUnit unit= getCu();
+                       ResourceMapping mapping= JavaElementResourceMapping.create(unit);
+                       Change result= doPerformReorg(new SubProgressMonitor(pm, 1));
+                       markAsExecuted(unit, mapping);
+                       return result;
+               } finally {
+                       pm.done();
+               }
+       }
+
+       abstract Change doPerformReorg(IProgressMonitor pm) throws CoreException, OperationCanceledException;
+
+       @Override
+       public Object getModifiedElement() {
+               return getCu();
+       }
+
+       /* (non-Javadoc)
+        * @see org.eclipse.jdt.internal.corext.refactoring.base.JDTChange#getModifiedResource()
+        */
+       @Override
+       protected IResource getModifiedResource() {
+               ICompilationUnit cu= getCu();
+               if (cu != null) {
+                       return cu.getResource();
+               }
+               return null;
+       }
+
+       ICompilationUnit getCu() {
+               return (ICompilationUnit)JavaCore.create(fCuHandle);
+       }
+
+       IPackageFragment getOldPackage() {
+               return (IPackageFragment)JavaCore.create(fOldPackageHandle);
+       }
+
+       IPackageFragment getDestinationPackage() {
+               return (IPackageFragment)JavaCore.create(fNewPackageHandle);
+       }
+
+       String getNewName() throws OperationCanceledException {
+               if (fNewNameQuery == null)
+                       return null;
+               return fNewNameQuery.getNewName();
+       }
+
+       static String getPackageName(IPackageFragment pack) {
+               return JavaElementLabels.getElementLabel(pack, JavaElementLabels.ALL_DEFAULT);
+       }
+
+       private void markAsExecuted(ICompilationUnit unit, ResourceMapping mapping) {
+               ReorgExecutionLog log= (ReorgExecutionLog)getAdapter(ReorgExecutionLog.class);
+               if (log != null) {
+                       log.markAsProcessed(unit);
+                       log.markAsProcessed(mapping);
+               }
+       }
+}