/*
* 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) 2001 - 2013 Object Refinery Ltd, Pentaho Corporation and Contributors.. All rights reserved.
*/
package org.pentaho.reporting.engine.classic.core.states.process;
import org.pentaho.reporting.engine.classic.core.ReportProcessingException;
import org.pentaho.reporting.engine.classic.core.event.ReportEvent;
import org.pentaho.reporting.engine.classic.core.states.LayoutProcess;
/**
* Creation-Date: 03.07.2007, 13:05:16
*
* @author Thomas Morgner
*/
public class BeginReportHandler implements AdvanceHandler {
public static final AdvanceHandler HANDLER = new BeginReportHandler();
private BeginReportHandler() {
}
public int getEventCode() {
return ReportEvent.REPORT_INITIALIZED;
}
public boolean isFinish() {
return false;
}
public ProcessState advance( final ProcessState state ) throws ReportProcessingException {
if ( !state.getFlowController().getMasterRow().getExpressionDataRow().isValid() ) {
throw new IllegalStateException( "The expression data-row must be valid upon the start of the report processing." );
}
final ProcessState next = state.deriveForAdvance();
next.fireReportEvent();
if ( next.isSubReportEvent() && next.getLevel() == LayoutProcess.LEVEL_PAGINATE ) {
next.firePageStartedEvent( ReportEvent.REPORT_INITIALIZED | ReportEvent.NO_PARENT_PASSING_EVENT );
}
return next;
}
public ProcessState commit( final ProcessState next ) throws ReportProcessingException {
if ( next.isSubReportExecutable() ) {
next.setAdvanceHandler( ReportHeaderHandler.HANDLER );
} else {
next.setAdvanceHandler( ReportDoneHandler.HANDLER );
}
return next;
}
public boolean isRestoreHandler() {
return false;
}
}