/*!
* 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.engine.classic.core.states.process;
import org.pentaho.reporting.engine.classic.core.CrosstabColumnGroup;
import org.pentaho.reporting.engine.classic.core.CrosstabRowGroup;
import org.pentaho.reporting.engine.classic.core.Group;
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.ReportState;
import org.pentaho.reporting.engine.classic.core.states.datarow.DefaultFlowController;
public class PrintSummaryJoinEndCrosstabColumnAxisHandler implements AdvanceHandler {
public static final AdvanceHandler HANDLER = new PrintSummaryJoinEndCrosstabColumnAxisHandler();
public PrintSummaryJoinEndCrosstabColumnAxisHandler() {
}
public ProcessState advance( final ProcessState state ) throws ReportProcessingException {
return state.deriveForAdvance();
}
/**
* Checks whether there are more groups active.
*
* @return true if this is the last (outer-most) group.
*/
private boolean isRootGroup( final ProcessState state ) {
return state.getCurrentGroupIndex() == ReportState.BEFORE_FIRST_GROUP;
}
public ProcessState commit( final ProcessState next ) throws ReportProcessingException {
next.leaveGroup();
final DefaultFlowController fc = next.getFlowController();
final boolean advanceRequested = fc.isAdvanceRequested();
final boolean advanceable = fc.getMasterRow().isAdvanceable();
if ( isRootGroup( next ) ) {
throw new ReportProcessingException( "This report is invalid. A CR-Col-Group cannot be a root group." );
}
final Group parentGroup = next.getReport().getGroup( next.getCurrentGroupIndex() );
if ( advanceRequested == false || advanceable == false ) {
// This happens for empty - reports. Empty-Reports are never advanceable, therefore we can
// reach an non-advance state where inner group-footers are printed.
if ( parentGroup instanceof CrosstabRowGroup ) {
if ( next.getCurrentGroupIndex() > next.getReplayStoredCrosstabGroup() ) {
next.setAdvanceHandler( PrintSummaryEndCrosstabColumnAxisHandler.HANDLER );
} else {
next.setAdvanceHandler( PrintSummaryRowEndReportHandler.HANDLER );
}
} else if ( parentGroup instanceof CrosstabColumnGroup ) {
next.setAdvanceHandler( PrintSummaryEndCrosstabColumnAxisHandler.HANDLER );
} else {
next.setAdvanceHandler( PrintSummaryRowEndReportHandler.HANDLER );
}
return next;
}
// This group is not the outer-most group ..
final DefaultFlowController cfc = fc.performCommit();
if ( ProcessState.isLastItemInGroup( parentGroup, fc.getMasterRow(), cfc.getMasterRow() ) ) {
if ( parentGroup instanceof CrosstabRowGroup ) {
// If the next group would be row, we have finished the summary processing and we can
// fire the Summary-Row-End event next...
if ( next.getCurrentGroupIndex() > next.getReplayStoredCrosstabGroup() ) {
next.setAdvanceHandler( PrintSummaryEndCrosstabColumnAxisHandler.HANDLER );
} else {
next.setAdvanceHandler( PrintSummaryRowEndReportHandler.HANDLER );
}
} else if ( parentGroup instanceof CrosstabColumnGroup ) {
// If there is another column group, then we are nested and thus need to continue..
next.setAdvanceHandler( PrintSummaryEndCrosstabColumnAxisHandler.HANDLER );
} else {
next.setAdvanceHandler( PrintSummaryRowEndReportHandler.HANDLER );
}
return next;
} else {
// The parent group is not finished, so finalize the commit.
// more data in parent group, print the next header
next.setFlowController( cfc );
next.setAdvanceHandler( PrintSummaryBeginCrosstabColumnAxisHandler.HANDLER );
return next;
}
}
public boolean isFinish() {
return false;
}
public int getEventCode() {
return ReportEvent.SUMMARY_ROW | ProcessState.ARTIFICIAL_EVENT_CODE | ReportEvent.CROSSTABBING;
}
public boolean isRestoreHandler() {
return false;
}
}