Initial binding of RenameRefactoring service to Eclipse.

editor/tools/plugins/com.google.dart.tools.ui/src/com/google/dart/tools/ui/internal/refactoring/ServiceUtils.java

Index: editor/tools/plugins/com.google.dart.tools.ui/src/com/google/dart/tools/ui/internal/refactoring/ServiceUtils.java
diff --git a/editor/tools/plugins/com.google.dart.tools.ui/src/com/google/dart/tools/ui/internal/refactoring/ServiceUtils.java b/editor/tools/plugins/com.google.dart.tools.ui/src/com/google/dart/tools/ui/internal/refactoring/ServiceUtils.java
new file mode 100644
index 0000000000000000000000000000000000000000..d9e3fab088f4df90fbabf074a3f847bc55b90184
--- /dev/null
+++ b/editor/tools/plugins/com.google.dart.tools.ui/src/com/google/dart/tools/ui/internal/refactoring/ServiceUtils.java
@@ -0,0 +1,127 @@
+/*
+ * Copyright (c) 2013, 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.ui.internal.refactoring;
+
+import com.google.dart.engine.formatter.edit.Edit;
+import com.google.dart.engine.services.change.Change;
+import com.google.dart.engine.services.change.SourceChange;
+import com.google.dart.engine.services.status.RefactoringStatus;
+import com.google.dart.engine.services.status.RefactoringStatusContext;
+import com.google.dart.engine.services.status.RefactoringStatusEntry;
+import com.google.dart.engine.services.status.RefactoringStatusSeverity;
+import com.google.dart.engine.source.Source;
+import com.google.dart.tools.core.DartCore;
+import com.google.dart.tools.ui.DartToolsPlugin;
+
+import org.eclipse.core.resources.IFile;
+import org.eclipse.core.runtime.CoreException;
+import org.eclipse.core.runtime.IStatus;
+import org.eclipse.core.runtime.Status;
+import org.eclipse.ltk.core.refactoring.TextFileChange;
+import org.eclipse.text.edits.MultiTextEdit;
+import org.eclipse.text.edits.ReplaceEdit;
+
+import java.util.List;
+
+/**
+ * Utilities to create LTK wrapper around Engine Services objects.
+ */
+public class ServiceUtils {
+  /**
+   * @return the {@link CoreException} wrapper around given {@link Throwable}.
+   */
+  public static CoreException createCoreException(Throwable e) {
+    IStatus status = createRuntimeStatus(e);
+    return new CoreException(status);
+  }
+
+  /**
+   * @return the LTK change for the given Services {@link Change}.
+   */
+  public static org.eclipse.ltk.core.refactoring.Change toLTK(Change change) {
+    // TODO(scheglov) support more Engine changes
+    SourceChange sourceChange = (SourceChange) change;
+    Source source = sourceChange.getSource();
+    IFile file = (IFile) DartCore.getProjectManager().getResource(source);
+    TextFileChange ltkChange = new TextFileChange(source.getShortName(), file);
+    ltkChange.setEdit(new MultiTextEdit());
+    List<Edit> edits = sourceChange.getEdits();
+    for (Edit edit : edits) {
+      ltkChange.addEdit(new ReplaceEdit(edit.offset, edit.length, edit.replacement));
+    }
+    // TODO(scheglov) edit groups
+    return ltkChange;
+  }
+
+  /**
+   * @return the LTK status for the given Services {@link RefactoringStatus}.
+   */
+  public static org.eclipse.ltk.core.refactoring.RefactoringStatus toLTK(RefactoringStatus status) {
+    org.eclipse.ltk.core.refactoring.RefactoringStatus result = new org.eclipse.ltk.core.refactoring.RefactoringStatus();
+    for (RefactoringStatusEntry entry : status.getEntries()) {
+      result.addEntry(
+          toLTK(entry.getSeverity()),
+          entry.getMessage(),
+          toLTK(entry.getContext()),
+          null,
+          org.eclipse.ltk.core.refactoring.RefactoringStatusEntry.NO_CODE);
+    }
+    return result;
+  }
+
+  /**
+   * @return the Dart status context for the given Services {@link RefactoringStatusContext}.
+   */
+  public static org.eclipse.ltk.core.refactoring.RefactoringStatusContext toLTK(
+      RefactoringStatusContext context) {
+    // TODO(scheglov) not implemented yet
+    return null;
+  }
+
+  /**
+   * @return the error status for given {@link Throwable}.
+   */
+  public static org.eclipse.ltk.core.refactoring.RefactoringStatus toLTK(Throwable e) {
+    IStatus status = createRuntimeStatus(e);
+    return org.eclipse.ltk.core.refactoring.RefactoringStatus.create(status);
+  }
+
+  /**
+   * @return the error {@link IStatus} for the given {@link Throwable}.
+   */
+  private static IStatus createRuntimeStatus(Throwable e) {
+    return new Status(IStatus.ERROR, DartToolsPlugin.getPluginId(), e.getMessage(), e);
+  }
+
+  /**
+   * @return the LTK status severity for the given Service {@link RefactoringStatusSeverity}.
+   */
+  private static int toLTK(RefactoringStatusSeverity severity) {
+    switch (severity) {
+      case OK:
+        return org.eclipse.ltk.core.refactoring.RefactoringStatus.OK;
+      case INFO:
+        return org.eclipse.ltk.core.refactoring.RefactoringStatus.INFO;
+      case WARNING:
+        return org.eclipse.ltk.core.refactoring.RefactoringStatus.WARNING;
+      case ERROR:
+        return org.eclipse.ltk.core.refactoring.RefactoringStatus.ERROR;
+      case FATAL:
+        return org.eclipse.ltk.core.refactoring.RefactoringStatus.FATAL;
+      default:
+        throw new IllegalArgumentException("severity: " + severity);
+    }
+  }
+}