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

Source Code of org.pentaho.reporting.designer.core.actions.global.OpenReportAction$LoadReportTask

/*!
* 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.global;

import java.awt.event.ActionEvent;
import java.io.File;
import java.io.IOException;
import javax.swing.Action;
import javax.swing.JFileChooser;
import javax.swing.SwingUtilities;
import javax.swing.filechooser.FileFilter;

import org.pentaho.reporting.designer.core.ReportDesignerBoot;
import org.pentaho.reporting.designer.core.ReportDesignerContext;
import org.pentaho.reporting.designer.core.actions.AbstractDesignerContextAction;
import org.pentaho.reporting.designer.core.actions.ActionMessages;
import org.pentaho.reporting.designer.core.editor.ReportDocumentContext;
import org.pentaho.reporting.designer.core.util.IconLoader;
import org.pentaho.reporting.designer.core.util.exceptions.UncaughtExceptionsModel;
import org.pentaho.reporting.engine.classic.core.AbstractReportDefinition;
import org.pentaho.reporting.engine.classic.core.AttributeNames;
import org.pentaho.reporting.engine.classic.core.ClassicEngineBoot;
import org.pentaho.reporting.engine.classic.core.MasterReport;
import org.pentaho.reporting.engine.classic.core.ReportDataFactoryException;
import org.pentaho.reporting.engine.classic.core.modules.gui.commonswing.ExceptionDialog;
import org.pentaho.reporting.libraries.base.util.FilesystemFilter;
import org.pentaho.reporting.libraries.designtime.swing.ConsumableActionEvent;
import org.pentaho.reporting.libraries.designtime.swing.MacOSXIntegration;
import org.pentaho.reporting.libraries.designtime.swing.background.BackgroundCancellableProcessHelper;
import org.pentaho.reporting.libraries.designtime.swing.filechooser.CommonFileChooser;
import org.pentaho.reporting.libraries.designtime.swing.filechooser.FileChooserService;
import org.pentaho.reporting.libraries.docbundle.BundleUtilities;
import org.pentaho.reporting.libraries.docbundle.DocumentBundle;
import org.pentaho.reporting.libraries.docbundle.MemoryDocumentBundle;
import org.pentaho.reporting.libraries.resourceloader.Resource;
import org.pentaho.reporting.libraries.resourceloader.ResourceCreationException;
import org.pentaho.reporting.libraries.resourceloader.ResourceException;
import org.pentaho.reporting.libraries.resourceloader.ResourceManager;

public final class OpenReportAction extends AbstractDesignerContextAction
{
  public OpenReportAction()
  {
    putValue(Action.NAME, ActionMessages.getString("OpenReportAction.Text"));
    putValue(Action.SHORT_DESCRIPTION, ActionMessages.getString("OpenReportAction.Description"));
    putValue(Action.MNEMONIC_KEY, ActionMessages.getOptionalMnemonic("OpenReportAction.Mnemonic"));
    putValue(Action.ACCELERATOR_KEY, ActionMessages.getOptionalKeyStroke("OpenReportAction.Accelerator"));
    putValue(Action.SMALL_ICON, IconLoader.getInstance().getOpenIcon());
  }

  /**
   * Invoked when an action occurs.
   */
  public void actionPerformed(final ActionEvent e)
  {
    if (e.getSource() instanceof MacOSXIntegration.ApplicationEventSupport)
    {
      final MacOSXIntegration.ApplicationEventSupport integration =
          (MacOSXIntegration.ApplicationEventSupport) e.getSource();
      final String fileName = integration.getFileName();
      if (fileName != null)
      {
        SwingUtilities.invokeLater(new OpenReportTask(new File(fileName), getReportDesignerContext()));
      }

      if (e instanceof ConsumableActionEvent)
      {
        final ConsumableActionEvent ce = (ConsumableActionEvent) e;
        ce.consume();
      }

      return;
    }

    final FileFilter filter = new FilesystemFilter
        (new String[]{".xml", ".report", ".prpt", ".prpti"}, // NON-NLS
            ActionMessages.getString("OpenReportAction.FileTypeDescriptor"), true);

    final CommonFileChooser fileChooser = FileChooserService.getInstance().getFileChooser("report");//NON-NLS
    fileChooser.setFilters(new FileFilter[]{filter});
    fileChooser.setAllowMultiSelection(true);
    if (fileChooser.showDialog(getReportDesignerContext().getView().getParent(), JFileChooser.OPEN_DIALOG) == false)
    {
      return;
    }
    final File[] selectedFiles = fileChooser.getSelectedFiles();
    for (final File selectedFile : selectedFiles)
    {
      SwingUtilities.invokeLater(new OpenReportTask(selectedFile, getReportDesignerContext()));
    }
  }

  public static class OpenReportTask implements Runnable
  {
    private File selectedFile;
    private ReportDesignerContext context;

    public OpenReportTask(final File selectedFile, final ReportDesignerContext context)
    {
      this.selectedFile = selectedFile;
      this.context = context;
    }

    public void run()
    {
      openReport(selectedFile, context);
      // Even if the database is not valid, never ever tell the user that the report definition
      // cannot be opened when in the next minute that same report pops up.
      context.getView().setWelcomeVisible(false);
    }
  }


  public static void openReport(final File selectedFile,
                                final ReportDesignerContext context)
  {
    if (selectedFile == null)
    {
      throw new NullPointerException();
    }
    if (context == null)
    {
      throw new NullPointerException();
    }

    final LoadReportTask target = new LoadReportTask(selectedFile);
    final Thread loadThread = new Thread(target);
    loadThread.setDaemon(true);
    BackgroundCancellableProcessHelper.executeProcessWithCancelDialog
        (loadThread, null, context.getView().getParent(), ActionMessages.getString("OpenReportAction.LoadReportMessage"));
    final AbstractReportDefinition report = target.getReport();
    if (report instanceof MasterReport)
    {
      try
      {
        context.addMasterReport((MasterReport) report);
        context.getRecentFilesModel().addFile(selectedFile);

        final ReportDocumentContext activeContext = context.getActiveContext();
        if (activeContext != null)
        {
          activeContext.resetChangeTracker();
        }
      }
      catch (ReportDataFactoryException e)
      {
        UncaughtExceptionsModel.getInstance().addException(e);
      }
    }
    else
    {
      final Exception exception = target.getException();
      if (exception instanceof ResourceCreationException)
      {
        ExceptionDialog.showExceptionDialog(context.getView().getParent(), ActionMessages.getString("FailedToOpen.Error.Title"),
            ActionMessages.getString("FailedToOpen.Error.Message"), exception);
        UncaughtExceptionsModel.getInstance().addException(exception);
      }
      else if (exception != null)
      {
        UncaughtExceptionsModel.getInstance().addException(exception);
      }
    }

  }

  private static class LoadReportTask implements Runnable
  {
    private File file;
    private AbstractReportDefinition report;
    private Exception exception;

    private LoadReportTask(final File file)
    {
      if (file == null)
      {
        throw new NullPointerException();
      }
      this.file = file;
    }

    /**
     * When an object implementing interface <code>Runnable</code> is used
     * to create a thread, starting the thread causes the object's
     * <code>run</code> method to be called in that separately executing
     * thread.
     * <p/>
     * The general contract of the method <code>run</code> is that it may
     * take any action whatsoever.
     *
     * @see Thread#run()
     */
    public void run()
    {
      try
      {
        report = loadReport(file);
      }
      catch (Exception e)
      {
        this.exception = e;
      }
    }

    public AbstractReportDefinition getReport()
    {
      return report;
    }

    public Exception getException()
    {
      return exception;
    }
  }

  public static MasterReport loadReport(final File selectedFile)
      throws ResourceException, IOException
  {
    final ResourceManager resourceManager = new ResourceManager();
    final MasterReport reportDefinition = loadReport(selectedFile, resourceManager);
    try
    {
      reportDefinition.setAttribute
          (ReportDesignerBoot.DESIGNER_NAMESPACE, "report-save-path", selectedFile.getCanonicalPath()); // NON-NLS
    }
    catch (IOException ioe)
    {
      reportDefinition.setAttribute
          (ReportDesignerBoot.DESIGNER_NAMESPACE, "report-save-path", selectedFile.getAbsolutePath()); // NON-NLS
    }

    return reportDefinition;
  }

  public static MasterReport loadReport(final Object selectedFile, final ResourceManager resourceManager)
      throws ResourceException, IOException
  {
    final Resource directly = resourceManager.createDirectly(selectedFile, MasterReport.class);
    final MasterReport resource = (MasterReport) directly.getResource();
    final DocumentBundle bundle = resource.getBundle();
    if (bundle == null)
    {
      // Ok, that should not happen if we work with the engine's parsers, but better safe than sorry.
      final MemoryDocumentBundle documentBundle = new MemoryDocumentBundle(resource.getContentBase());
      documentBundle.getWriteableDocumentMetaData().setBundleType(ClassicEngineBoot.BUNDLE_TYPE);
      resource.setBundle(documentBundle);
      resource.setContentBase(documentBundle.getBundleMainKey());
    }
    else
    {
      final MemoryDocumentBundle mem = new MemoryDocumentBundle(resource.getContentBase());
      BundleUtilities.copyStickyInto(mem, bundle);
      BundleUtilities.copyMetaData(mem, bundle);
      resource.setBundle(mem);
      resource.setContentBase(mem.getBundleMainKey());
    }

    final Object visible =
        resource.getBundle().getMetaData().getBundleAttribute(ClassicEngineBoot.METADATA_NAMESPACE, "visible");//NON-NLS
    if ("true".equals(visible))//NON-NLS
    {
      resource.setAttribute(AttributeNames.Pentaho.NAMESPACE, "visible", Boolean.TRUE);//NON-NLS
    }
    else if ("false".equals(visible))//NON-NLS
    {
      resource.setAttribute(AttributeNames.Pentaho.NAMESPACE, "visible", Boolean.FALSE);//NON-NLS
    }
    return resource;
  }
}
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