ReportWritingUtil.java example

Explorer
pentaho-reporting-master
/*
 * 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) 2006 - 2009 Pentaho Corporation..  All rights reserved.
 */

package org.pentaho.reporting.engine.classic.core.testsupport;

import org.pentaho.reporting.engine.classic.core.MasterReport;
import org.pentaho.reporting.engine.classic.core.modules.parser.bundle.writer.BundleWriter;
import org.pentaho.reporting.libraries.base.util.MemoryByteArrayOutputStream;
import org.pentaho.reporting.libraries.resourceloader.Resource;
import org.pentaho.reporting.libraries.resourceloader.ResourceManager;

public class ReportWritingUtil {
  public static MasterReport saveAndLoad( MasterReport report ) throws Exception {
    final MemoryByteArrayOutputStream bout = new MemoryByteArrayOutputStream();
    BundleWriter.writeReportToZipStream( report, bout );
    final ResourceManager mgr = new ResourceManager();
    mgr.registerDefaults();

    final Resource resource = mgr.createDirectly( bout.toByteArray(), MasterReport.class );
    return (MasterReport) resource.getResource();
  }
}