SpoonMenuLockController.java

/*!
 * Copyright 2010 - 2015 Pentaho Corporation.  All rights reserved.
 *
 * Licensed under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0
 *
 * 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 org.pentaho.di.ui.repository.pur.controller;

import org.pentaho.di.core.EngineMetaInterface;
import org.pentaho.di.core.exception.KettleException;
import org.pentaho.di.repository.Repository;
import org.pentaho.di.repository.pur.PurRepository;
import org.pentaho.di.repository.pur.model.EEJobMeta;
import org.pentaho.di.repository.pur.model.ILockable;
import org.pentaho.di.repository.pur.model.RepositoryLock;
import org.pentaho.di.ui.repository.pur.services.ILockService;
import org.pentaho.di.ui.spoon.ISpoonMenuController;
import org.pentaho.di.ui.spoon.Spoon;
import org.pentaho.ui.xul.components.XulMenuitem;
import org.pentaho.ui.xul.components.XulToolbarbutton;
import org.pentaho.ui.xul.dom.Document;

public class SpoonMenuLockController implements ISpoonMenuController, java.io.Serializable {

  private static final long serialVersionUID = -1007051375792274091L; /* EESOURCE: UPDATE SERIALVERUID */

  public String getName() {
    return "spoonMenuLockController"; //$NON-NLS-1$
  }

  public void updateMenu( Document doc ) {
    try {
      Spoon spoon = Spoon.getInstance();

      // If we are working with an Enterprise Repository
      if ( ( spoon != null ) && ( spoon.getRepository() != null ) && ( spoon.getRepository() instanceof PurRepository ) ) {
        ILockService service = getService( spoon.getRepository() );

        EngineMetaInterface meta = spoon.getActiveMeta();

        // If (meta is not null) and (meta is either a Transformation or Job)
        if ( ( meta != null ) && ( meta instanceof ILockable ) ) {

          RepositoryLock repoLock = null;
          if ( service != null && meta.getObjectId() != null ) {
            if ( meta instanceof EEJobMeta ) {
              repoLock = service.getJobLock( meta.getObjectId() );
            } else {
              repoLock = service.getTransformationLock( meta.getObjectId() );
            }
          }
          // If (there is a lock on this item) and (the UserInfo does not have permission to unlock this file)
          if ( repoLock != null ) {
            if ( !service.canUnlockFileById( meta.getObjectId() ) ) {
              // User does not have modify permissions on this file
              ( (XulToolbarbutton) doc.getElementById( "toolbar-file-save" ) ).setDisabled( true ); //$NON-NLS-1$
              ( (XulMenuitem) doc.getElementById( "file-save" ) ).setDisabled( true ); //$NON-NLS-1$  
            }
          }
        }
      }
    } catch ( Exception e ) {
      throw new RuntimeException( e );
    }
  }

  private ILockService getService( Repository repository ) throws KettleException {
    if ( repository.hasService( ILockService.class ) ) {
      return (ILockService) repository.getService( ILockService.class );
    } else {
      throw new IllegalStateException();
    }
  }
}