Package org.pentaho.reporting.designer.core.actions.elements

Source Code of org.pentaho.reporting.designer.core.actions.elements.EditDataSourceAction

/*!
* This program is free software; you can redistribute it and/or modify it under the
* terms of the GNU Lesser General Public License, version 2.1 as published by the Free Software
* Foundation.
*
* You should have received a copy of the GNU Lesser General Public License along with this
* program; if not, you can obtain a copy at http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html
* or from the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
* This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
* See the GNU Lesser General Public License for more details.
*
* Copyright (c) 2002-2013 Pentaho Corporation..  All rights reserved.
*/

package org.pentaho.reporting.designer.core.actions.elements;

import java.awt.event.ActionEvent;
import java.util.List;
import javax.swing.Action;

import org.pentaho.reporting.designer.core.actions.AbstractElementSelectionAction;
import org.pentaho.reporting.designer.core.actions.ActionMessages;
import org.pentaho.reporting.designer.core.editor.ReportDocumentContext;
import org.pentaho.reporting.designer.core.model.selection.DocumentContextSelectionModel;
import org.pentaho.reporting.designer.core.util.ReportDesignerDesignTimeContext;
import org.pentaho.reporting.designer.core.util.exceptions.UncaughtExceptionsModel;
import org.pentaho.reporting.designer.core.util.undo.DataSourceEditUndoEntry;
import org.pentaho.reporting.engine.classic.core.AbstractReportDefinition;
import org.pentaho.reporting.engine.classic.core.CompoundDataFactory;
import org.pentaho.reporting.engine.classic.core.DataFactory;
import org.pentaho.reporting.engine.classic.core.ReportDataFactoryException;
import org.pentaho.reporting.engine.classic.core.designtime.DataSourcePlugin;
import org.pentaho.reporting.engine.classic.core.designtime.DefaultDataFactoryChangeRecorder;
import org.pentaho.reporting.engine.classic.core.event.ReportModelEvent;
import org.pentaho.reporting.engine.classic.core.metadata.DataFactoryMetaData;

public class EditDataSourceAction extends AbstractElementSelectionAction
{
  public EditDataSourceAction()
  {
    putValue(Action.NAME, ActionMessages.getString("EditDataSourceAction.Text"));
    putValue(Action.SHORT_DESCRIPTION, ActionMessages.getString("EditDataSourceAction.Description"));
    putValue(Action.MNEMONIC_KEY, ActionMessages.getOptionalMnemonic("EditDataSourceAction.Mnemonic"));
    putValue(Action.ACCELERATOR_KEY, ActionMessages.getOptionalKeyStroke("EditDataSourceAction.Accelerator"));
  }

  protected void selectedElementPropertiesChanged(final ReportModelEvent event)
  {
  }

  protected void updateSelection()
  {
    final DocumentContextSelectionModel selectionModel1 = getSelectionModel();
    if (selectionModel1 == null)
    {
      setEnabled(false);
      return;
    }

    final List<DataFactory> selectedObjects = selectionModel1.getSelectedElementsOfType(DataFactory.class);
    for (DataFactory dataFactory : selectedObjects)
    {
      final DataFactoryMetaData metadata = dataFactory.getMetaData();
      if (metadata.isEditable())
      {
        setEnabled(true);
        return;
      }
    }

    setEnabled(false);
  }

  /**
   * Invoked when an action occurs.
   */
  public void actionPerformed(final ActionEvent e)
  {
    final ReportDocumentContext activeContext = getActiveContext();
    if (activeContext == null)
    {
      return;
    }

    final List<DataFactory> selectedElements = getSelectionModel().getSelectedElementsOfType(DataFactory.class);
    for (DataFactory dataFactory : selectedElements)
    {
      try
      {
        performEdit(dataFactory);
      }
      catch (ReportDataFactoryException e1)
      {
        UncaughtExceptionsModel.getInstance().addException(e1);
      }
      return;
    }
  }

  protected void performEdit(final DataFactory dataFactory) throws ReportDataFactoryException
  {
    final DataFactoryMetaData metadata = dataFactory.getMetaData();
    if (metadata.isEditable() == false)
    {
      return;
    }

    final DataSourcePlugin dataSourcePlugin = metadata.createEditor();
    final DataFactory storedFactory = dataFactory.derive();
    if (dataSourcePlugin.canHandle(dataFactory) == false)
    {
      return;
    }

    final DefaultDataFactoryChangeRecorder recorder = new DefaultDataFactoryChangeRecorder();
    final DataFactory editedDataFactory = dataSourcePlugin.performEdit
        (new ReportDesignerDesignTimeContext(getReportDesignerContext()), dataFactory, null, recorder);
    if (editedDataFactory == null)
    {
      return;
    }

    final ReportDocumentContext activeContext = getActiveContext();
    final AbstractReportDefinition report = activeContext.getReportDefinition();
    final CompoundDataFactory collection = (CompoundDataFactory) report.getDataFactory();
    final int j = collection.indexOfByReference(dataFactory);
    if (j == -1)
    {
      throw new IllegalStateException("Edited data-source does not exist in the report anymore.");
    }

    DefaultDataFactoryChangeRecorder.applyChanges(collection, recorder.getChanges());

    final DataFactory editedClone = editedDataFactory.derive();
    collection.set(j, editedDataFactory);
    activeContext.getUndo().addChange
        (ActionMessages.getString("EditDataSourceAction.UndoName"), new DataSourceEditUndoEntry(j, storedFactory, editedClone));

    report.notifyNodeChildRemoved(dataFactory);
    report.notifyNodeChildAdded(editedDataFactory);
  }
}
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