code: package it.unibz.inf.ontop.protege.query;
  
  /*
   * #%L
   * ontop-protege
   * %%
   * Copyright (C) 2009 - 2013 KRDB Research Centre. Free University of Bozen Bolzano.
   * %%
   * 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.
   * #L%
   */
  
  import it.unibz.inf.ontop.protege.core.OBDAEditorKitSynchronizerPlugin;
  import it.unibz.inf.ontop.protege.core.OBDAModelManager;
  
  import java.awt.BorderLayout;
  import java.util.ArrayList;
  import java.util.Collections;
  import java.util.List;
  
  import org.protege.editor.core.Disposable;
  import org.protege.editor.owl.OWLEditorKit;
  import org.protege.editor.owl.ui.view.AbstractOWLViewComponent;
  
  import javax.annotation.Nonnull;
  
  public class QueryManagerView extends AbstractOWLViewComponent {
  
  	private static final long serialVersionUID = 1L;
  	
  	private QueryManagerPanel panel;
  	private OBDAModelManager obdaModelManager;
  
  	@Override
  	protected void initialiseOWLView()  {
  		OWLEditorKit editorKit = getOWLEditorKit();
  		obdaModelManager = OBDAEditorKitSynchronizerPlugin.getOBDAModelManager(editorKit);
  
  		setLayout(new BorderLayout());
  		panel = new QueryManagerPanel(editorKit);
  		add(panel, BorderLayout.CENTER);
  
  		obdaModelManager.addQueryManagerListener(panel.getQueryManagerListener());
  		obdaModelManager.addListener(panel.getOBDAModelManagerListener());
  
  		List<QueryManagerView> queryManagerViews = getList(editorKit);
  		if (queryManagerViews.isEmpty())
  			queryManagerViews = new QueryManagerViewsList(editorKit);
  
  		queryManagerViews.add(this);
  
  		for (QueryInterfaceView queryInterfaceView : QueryInterfaceView.getList(editorKit))
  			addSelectionListener(queryInterfaceView.getSelectionListener());
  	}
  
  	@Override
  	protected void disposeOWLView() {
  		List<QueryManagerView> queryManagerViews = getList(getOWLEditorKit());
  		queryManagerViews.remove(this);
  
  		obdaModelManager.removeQueryManagerListener(panel.getQueryManagerListener());
  		obdaModelManager.removeListener(panel.getOBDAModelManagerListener());
  
  	}
  
  	public void addSelectionListener(QueryManagerPanelSelectionListener listener) {
  		panel.addQueryManagerSelectionListener(listener);
  	}
  
  	public void removeSelectionListener(QueryManagerPanelSelectionListener listener) {
  		panel.removeQueryManagerSelectionListener(listener);
  	}
  
  	@Nonnull
  	public static List<QueryManagerView> getList(OWLEditorKit editorKit) {
  		QueryManagerViewsList list = (QueryManagerViewsList) editorKit.get(QueryManagerViewsList.class.getName());
  		return list == null ? Collections.emptyList() : list;
  	}
  
  	private static class QueryManagerViewsList extends ArrayList<QueryManagerView> implements Disposable {
  
  		private static final long serialVersionUID = 2986737849606126197L;
  
  		private QueryManagerViewsList(OWLEditorKit editorKit) {
  			editorKit.put(QueryManagerViewsList.class.getName(), this);
  		}
  
  		@Override
  		public void dispose() { /* NO-OP */ }
  	}
  }
  