org.eclipse.scout.sdk.ui/src/org/eclipse/scout/sdk/ui/executor/TypeRenameExecutor.java

/*******************************************************************************
 * Copyright (c) 2013 BSI Business Systems Integration AG.
 * 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:
 *     BSI Business Systems Integration AG - initial API and implementation
 ******************************************************************************/
package org.eclipse.scout.sdk.ui.executor;

import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.Status;
import org.eclipse.jdt.core.IType;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.scout.sdk.Texts;
import org.eclipse.scout.sdk.ui.internal.ScoutSdkUi;
import org.eclipse.scout.sdk.ui.internal.jdt.JdtRenameTransaction;
import org.eclipse.scout.sdk.ui.util.UiUtility;
import org.eclipse.scout.sdk.util.ScoutUtility;
import org.eclipse.scout.sdk.util.type.TypeUtility;

/**
 * <h3>{@link TypeRenameExecutor}</h3>
 *
 * @author Matthias Villiger
 * @since 4.1.0 13.10.2014
 */
public class TypeRenameExecutor extends AbstractRenameExecutor {

  private IType m_type;

  @Override
  public boolean canRun(IStructuredSelection selection) {
    boolean superRun = super.canRun(selection);
    if (!superRun) {
      return false;
    }

    m_type = UiUtility.getTypeFromSelection(selection);

    return isEditable(m_type);
  }

  @Override
  protected void fillTransaction(JdtRenameTransaction transaction, String newName) throws CoreException {
    transaction.add(m_type, newName);
  }

  @Override
  protected IStatus validate(String newName) {
    IStatus inheritedStatus = ScoutUtility.validateJavaName(newName, getReadOnlySuffix());
    if (inheritedStatus.matches(IStatus.ERROR)) {
      return inheritedStatus;
    }
    IType declaringType = m_type.getDeclaringType();
    if (declaringType != null) {
      if (TypeUtility.exists(declaringType.getType(newName))) {
        return new Status(IStatus.ERROR, ScoutSdkUi.PLUGIN_ID, Texts.get("Error_nameAlreadyUsed"));
      }
    }
    else {
      String packName = m_type.getPackageFragment().getElementName();
      if (TypeUtility.existsType(packName + "." + newName)) {
        return new Status(IStatus.ERROR, ScoutSdkUi.PLUGIN_ID, Texts.get("Error_nameAlreadyUsed"));
      }
    }
    return inheritedStatus;
  }
}