plugins/org.eclipse.emf.cdo.explorer.ui/src/org/eclipse/emf/cdo/explorer/ui/checkouts/ResourceGroup.java

/*
 * Copyright (c) 2015 Eike Stepper (Berlin, Germany) 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:
 *    Eike Stepper - initial API and implementation
 */
package org.eclipse.emf.cdo.explorer.ui.checkouts;

import org.eclipse.emf.cdo.CDOElement;
import org.eclipse.emf.cdo.common.commit.CDOCommitInfo;
import org.eclipse.emf.cdo.common.util.CDORenameContext;
import org.eclipse.emf.cdo.eresource.CDOResourceNode;
import org.eclipse.emf.cdo.explorer.CDOExplorerManager.ElementsChangedEvent;
import org.eclipse.emf.cdo.explorer.CDOExplorerUtil;
import org.eclipse.emf.cdo.explorer.checkouts.CDOCheckout;
import org.eclipse.emf.cdo.explorer.ui.bundle.OM;
import org.eclipse.emf.cdo.explorer.ui.properties.ExplorerUIAdapterFactory;
import org.eclipse.emf.cdo.internal.explorer.checkouts.CDOCheckoutManagerImpl;
import org.eclipse.emf.cdo.transaction.CDOTransaction;

import org.eclipse.net4j.util.StringUtil;

import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.Status;
import org.eclipse.core.runtime.jobs.Job;

/**
 * @author Eike Stepper
 */
public class ResourceGroup extends CDOElement implements CDORenameContext
{
  private String name;

  public ResourceGroup(CDOResourceNode delegate)
  {
    super(delegate);
    reset();
  }

  @Override
  public CDOResourceNode getDelegate()
  {
    return (CDOResourceNode)super.getDelegate();
  }

  public String getType()
  {
    return "Resource Group";
  }

  public String getName()
  {
    return name;
  }

  public void setName(final String name)
  {
    final String type = getType();
    new Job("Rename " + type.toLowerCase())
    {
      @Override
      protected IStatus run(IProgressMonitor monitor)
      {
        CDOResourceNode resourceNode = getDelegate();
        CDOCheckout checkout = CDOExplorerUtil.getCheckout(resourceNode);
        CDOTransaction transaction = checkout.openTransaction();

        CDOCommitInfo commitInfo = null;

        try
        {
          for (Object child : getChildren())
          {
            if (child instanceof CDOResourceNode)
            {
              CDOResourceNode childNode = (CDOResourceNode)child;
              CDOResourceNode transactionalChildNode = transaction.getObject(childNode);
              String extension = transactionalChildNode.getExtension();

              transactionalChildNode.setName(name + "." + extension);
            }
          }

          commitInfo = transaction.commit();
        }
        catch (Exception ex)
        {
          OM.LOG.error(ex);
        }
        finally
        {
          transaction.close();
        }

        if (commitInfo != null)
        {
          checkout.getView().waitForUpdate(commitInfo.getTimeStamp());

          CDOCheckoutManagerImpl checkoutManager = (CDOCheckoutManagerImpl)CDOExplorerUtil.getCheckoutManager();
          checkoutManager.fireElementChangedEvent(ElementsChangedEvent.StructuralImpact.PARENT, ResourceGroup.this);
        }

        return Status.OK_STATUS;
      }
    }.schedule();
  }

  public String validateName(String name)
  {
    String type = getType();
    if (StringUtil.isEmpty(name))
    {
      return type + " name is empty.";
    }

    if (name.equals(getName()))
    {
      return null;
    }

    for (Object child : getChildren())
    {
      if (child instanceof CDOResourceNode)
      {
        CDOResourceNode childNode = (CDOResourceNode)child;
        String extension = childNode.getExtension();

        String error = ExplorerUIAdapterFactory.checkUniqueName(childNode, name + "." + extension, type);
        if (error != null)
        {
          return error;
        }
      }
    }

    return null;
  }

  @Override
  public void reset()
  {
    super.reset();
    name = getDelegate().trimExtension();
  }

  @Override
  public String toString(Object child)
  {
    return ((CDOResourceNode)child).getExtension();
  }

  @Override
  public String toString()
  {
    return name;
  }
}