Issue 2067. Rename project folder on disk

editor/tools/plugins/com.google.dart.tools.ui/src/com/google/dart/tools/internal/corext/refactoring/rename/RenameProjectParticipant.java

Index: editor/tools/plugins/com.google.dart.tools.ui/src/com/google/dart/tools/internal/corext/refactoring/rename/RenameProjectParticipant.java
diff --git a/editor/tools/plugins/com.google.dart.tools.ui/src/com/google/dart/tools/internal/corext/refactoring/rename/RenameProjectParticipant.java b/editor/tools/plugins/com.google.dart.tools.ui/src/com/google/dart/tools/internal/corext/refactoring/rename/RenameProjectParticipant.java
new file mode 100644
index 0000000000000000000000000000000000000000..dd03e5aaa88085babba572dc8b3123fb0084bb75
--- /dev/null
+++ b/editor/tools/plugins/com.google.dart.tools.ui/src/com/google/dart/tools/internal/corext/refactoring/rename/RenameProjectParticipant.java
@@ -0,0 +1,129 @@
+/*
+ * Copyright (c) 2012, the Dart project authors.
+ * 
+ * Licensed under the Eclipse Public License v1.0 (the "License"); you may not use this file except
+ * in compliance with the License. You may obtain a copy of the License at
+ * 
+ * http://www.eclipse.org/legal/epl-v10.html
+ * 
+ * Unless required by applicable law or agreed to in writing, software distributed under the License
+ * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
+ * or implied. See the License for the specific language governing permissions and limitations under
+ * the License.
+ */
+package com.google.dart.tools.internal.corext.refactoring.rename;
+
+import com.google.dart.compiler.util.apache.FileUtils;
+import com.google.dart.tools.core.DartCore;
+import com.google.dart.tools.internal.corext.refactoring.util.ExecutionUtils;
+import com.google.dart.tools.internal.corext.refactoring.util.RunnableObjectEx;
+import com.google.dart.tools.ui.internal.refactoring.RefactoringMessages;
+
+import org.eclipse.core.resources.IProject;
+import org.eclipse.core.resources.IProjectDescription;
+import org.eclipse.core.resources.IResource;
+import org.eclipse.core.resources.ResourcesPlugin;
+import org.eclipse.core.runtime.CoreException;
+import org.eclipse.core.runtime.IProgressMonitor;
+import org.eclipse.core.runtime.OperationCanceledException;
+import org.eclipse.ltk.core.refactoring.Change;
+import org.eclipse.ltk.core.refactoring.RefactoringStatus;
+import org.eclipse.ltk.core.refactoring.participants.CheckConditionsContext;
+import org.eclipse.ltk.core.refactoring.participants.RenameArguments;
+import org.eclipse.ltk.core.refactoring.participants.RenameParticipant;
+import org.eclipse.ltk.core.refactoring.resource.ResourceChange;
+
+import java.io.File;
+
+/**
+ * {@link RenameParticipant} for renaming {@link IProject} folder on disk.
+ * 
+ * @coverage dart.editor.ui.refactoring.core
+ */
+public class RenameProjectParticipant extends RenameParticipant {
+
+  private static final class RenameProjectFolderChange extends ResourceChange {
+    private final IProject project;
+    private final String newName;
+
+    public RenameProjectFolderChange(IProject project, String newName) {
+      this.project = project;
+      this.newName = newName;
+    }
+
+    @Override
+    public String getName() {
+      return "Rename project folder on disk";
+    }
+
+    @Override
+    public Change perform(IProgressMonitor pm) throws CoreException {
+      try {
+        // "project" was already renamed at this point
+        IProject project = ResourcesPlugin.getWorkspace().getRoot().getProject(newName);
+        IProjectDescription description = project.getDescription();
+        // prepare locations
+        File currentFile = FileUtils.toFile(description.getLocationURI().toURL());
+        File newFile = new File(currentFile.getParentFile(), newName);
+        // point project to this new folder
+        {
+          description.setLocationURI(newFile.toURI());
+          project.move(description, IResource.FORCE | IResource.SHALLOW, pm);
+        }
+        // rename folder on disk
+        currentFile.renameTo(newFile);
+      } catch (Throwable e) {
+        DartCore.logError(e);
+        return null;
+      }
+      return null;
+    }
+
+    @Override
+    protected IResource getModifiedResource() {
+      return project;
+    }
+  }
+
+  private IProject project;
+
+  @Override
+  public RefactoringStatus checkConditions(IProgressMonitor pm, CheckConditionsContext context)
+      throws OperationCanceledException {
+    return new RefactoringStatus();
+  }
+
+  @Override
+  public Change createChange(final IProgressMonitor pm) throws CoreException,
+      OperationCanceledException {
+    return ExecutionUtils.runObjectCore(new RunnableObjectEx<Change>() {
+      @Override
+      public Change runObject() throws Exception {
+        return createChangeEx(pm);
+      }
+    });
+  }
+
+  @Override
+  public String getName() {
+    return RefactoringMessages.RenameResourceParticipant_name;
+  }
+
+  @Override
+  protected boolean initialize(Object element) {
+    if (element instanceof IProject) {
+      project = (IProject) element;
+      return true;
+    }
+    return false;
+  }
+
+  /**
+   * Implementation of {@link #createChange(IProgressMonitor)} which can throw any exception.
+   */
+  private Change createChangeEx(IProgressMonitor pm) throws Exception {
+    RenameArguments arguments = getArguments();
+    return new RenameProjectFolderChange(project, arguments.getNewName());
+  }
+
+}