JFreeReportStreamHtmlComponent.java

/*
 * 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 2006 - 2009 Pentaho Corporation.  All rights reserved.
 *
 */
package org.pentaho.platform.plugin.action.jfreereport.outputs;

import java.io.IOException;
import java.io.OutputStream;

import org.pentaho.reporting.engine.classic.core.MasterReport;
import org.pentaho.reporting.engine.classic.core.ReportProcessingException;
import org.pentaho.reporting.engine.classic.core.layout.output.YieldReportListener;
import org.pentaho.reporting.engine.classic.core.modules.output.table.base.StreamReportProcessor;
import org.pentaho.reporting.engine.classic.core.modules.output.table.html.AllItemsHtmlPrinter;
import org.pentaho.reporting.engine.classic.core.modules.output.table.html.FileSystemURLRewriter;
import org.pentaho.reporting.engine.classic.core.modules.output.table.html.HtmlOutputProcessor;
import org.pentaho.reporting.engine.classic.core.modules.output.table.html.HtmlPrinter;
import org.pentaho.reporting.engine.classic.core.modules.output.table.html.StreamHtmlOutputProcessor;
import org.pentaho.reporting.libraries.repository.ContentLocation;
import org.pentaho.reporting.libraries.repository.DefaultNameGenerator;
import org.pentaho.reporting.libraries.repository.stream.StreamRepository;

/**
 * Creation-Date: 07.07.2006, 20:42:17
 * 
 * @author Thomas Morgner
 */
public class JFreeReportStreamHtmlComponent extends AbstractGenerateStreamContentComponent {
  private static final long serialVersionUID = 7103996413736560262L;

  public JFreeReportStreamHtmlComponent() {
  }

  @Override
  protected String getMimeType() {
    return "text/html"; //$NON-NLS-1$
  }

  @Override
  protected String getExtension() {
    return ".html"; //$NON-NLS-1$
  }

  @SuppressWarnings("deprecation")
  @Override
  protected boolean performExport(final MasterReport report, final OutputStream outputStream) {
    try {

      final StreamRepository targetRepository = new StreamRepository(null, outputStream);
      final ContentLocation targetRoot = targetRepository.getRoot();

      final HtmlOutputProcessor outputProcessor = new StreamHtmlOutputProcessor(report.getConfiguration());
      final HtmlPrinter printer = new AllItemsHtmlPrinter(report.getResourceManager());
      printer.setContentWriter(targetRoot, new DefaultNameGenerator(targetRoot, "index", "html"));//$NON-NLS-1$//$NON-NLS-2$
      printer.setDataWriter(null, null);
      printer.setUrlRewriter(new FileSystemURLRewriter());
      outputProcessor.setPrinter(printer);

      final StreamReportProcessor sp = new StreamReportProcessor(report, outputProcessor);
      final int yieldRate = getYieldRate();
      if (yieldRate > 0) {
        sp.addReportProgressListener(new YieldReportListener(yieldRate));
      }
      sp.processReport();
      sp.close();

      outputStream.flush();
      close();
      return true;
    } catch (ReportProcessingException e) {
      return false;
    } catch (IOException e) {
      return false;
    }
  }
}