Case Study: adding data and statistics

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

diff --git a/case-study/jdt-after/core refactoring/org/eclipse/jdt/internal/corext/refactoring/changes/PackageReorgChange.java b/case-study/jdt-after/core refactoring/org/eclipse/jdt/internal/corext/refactoring/changes/PackageReorgChange.java
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+++ b/case-study/jdt-after/core refactoring/org/eclipse/jdt/internal/corext/refactoring/changes/PackageReorgChange.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.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.IPackageFragment;
+import org.eclipse.jdt.core.IPackageFragmentRoot;
+import org.eclipse.jdt.core.JavaCore;
+import org.eclipse.jdt.core.JavaModelException;
+
+import org.eclipse.jdt.internal.corext.refactoring.reorg.INewNameQuery;
+import org.eclipse.jdt.internal.corext.util.JavaElementResourceMapping;
+
+abstract class PackageReorgChange extends ResourceChange {
+
+       private String fPackageHandle;
+       private String fDestinationHandle;
+       private INewNameQuery fNameQuery;
+
+       PackageReorgChange(IPackageFragment pack, IPackageFragmentRoot dest, INewNameQuery nameQuery) {
+               fPackageHandle= pack.getHandleIdentifier();
+               fDestinationHandle= dest.getHandleIdentifier();
+               fNameQuery= nameQuery;
+
+               // it is enough to check the package only since package reorg changes
+               // are not undoable. Don't check for read only here since
+               // we already ask for user confirmation and moving a read
+               // only package doesn't go thorugh validate edit (no
+               // file content is modified).
+               setValidationMethod(VALIDATE_DEFAULT);
+       }
+
+       abstract Change doPerformReorg(IProgressMonitor pm) throws JavaModelException, OperationCanceledException;
+
+       @Override
+       public final Change perform(IProgressMonitor pm) throws CoreException, OperationCanceledException {
+               pm.beginTask(getName(), 1);
+               try {
+                       IPackageFragment pack= getPackage();
+                       ResourceMapping mapping= JavaElementResourceMapping.create(pack);
+                       final Change result= doPerformReorg(pm);
+                       markAsExecuted(pack, mapping);
+                       return result;
+               } finally {
+                       pm.done();
+               }
+       }
+
+       @Override
+       public Object getModifiedElement() {
+               return getPackage();
+       }
+
+       /* (non-Javadoc)
+        * @see org.eclipse.jdt.internal.corext.refactoring.base.JDTChange#getModifiedResource()
+        */
+       @Override
+       protected IResource getModifiedResource() {
+               IPackageFragment pack= getPackage();
+               if (pack != null) {
+                       return pack.getResource();
+               }
+               return null;
+       }
+
+       IPackageFragmentRoot getDestination() {
+               return (IPackageFragmentRoot)JavaCore.create(fDestinationHandle);
+       }
+
+       IPackageFragment getPackage() {
+               return (IPackageFragment)JavaCore.create(fPackageHandle);
+       }
+
+       String getNewName() throws OperationCanceledException {
+               if (fNameQuery == null)
+                       return null;
+               return fNameQuery.getNewName();
+       }
+
+       private void markAsExecuted(IPackageFragment pack, ResourceMapping mapping) {
+               ReorgExecutionLog log= (ReorgExecutionLog)getAdapter(ReorgExecutionLog.class);
+               if (log != null) {
+                       log.markAsProcessed(pack);
+                       log.markAsProcessed(mapping);
+               }
+       }
+}