/*!
* 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.util;
import org.pentaho.reporting.engine.classic.core.AbstractReportDefinition;
import org.pentaho.reporting.engine.classic.core.CompoundDataFactory;
import org.pentaho.reporting.engine.classic.core.DataFactory;
import org.pentaho.reporting.engine.classic.core.MasterReport;
import org.pentaho.reporting.engine.classic.core.ReportElement;
import org.pentaho.reporting.engine.classic.core.RootLevelBand;
import org.pentaho.reporting.engine.classic.core.Section;
import org.pentaho.reporting.engine.classic.core.SubReport;
import org.pentaho.reporting.engine.classic.core.function.Expression;
import org.pentaho.reporting.engine.classic.core.function.ExpressionCollection;
import org.pentaho.reporting.engine.classic.core.metadata.ExpressionMetaData;
import org.pentaho.reporting.engine.classic.core.metadata.ExpressionRegistry;
import org.pentaho.reporting.engine.classic.core.parameters.ParameterDefinitionEntry;
import org.pentaho.reporting.engine.classic.core.parameters.ReportParameterDefinition;
import org.pentaho.reporting.engine.classic.core.style.StyleKey;
import java.util.Iterator;
import java.util.Map;
public abstract class AbstractStructureVisitor {
protected AbstractStructureVisitor() {
}
protected void inspect( final AbstractReportDefinition reportDefinition ) {
if ( reportDefinition instanceof MasterReport ) {
final MasterReport mr = (MasterReport) reportDefinition;
final ReportParameterDefinition parameters = mr.getParameterDefinition();
final ParameterDefinitionEntry[] entries = parameters.getParameterDefinitions();
for ( int i = 0; i < entries.length; i++ ) {
final ParameterDefinitionEntry entry = entries[i];
inspectParameter( reportDefinition, parameters, entry );
}
}
final CompoundDataFactory dataFactory = CompoundDataFactory.normalize( reportDefinition.getDataFactory(), false );
final int size = dataFactory.size();
for ( int i = 0; i < size; i++ ) {
inspectDataSource( reportDefinition, dataFactory.getReference( i ) );
}
final ExpressionCollection expressions = reportDefinition.getExpressions();
final Expression[] expressionsArray = expressions.getExpressions();
for ( int i = 0; i < expressionsArray.length; i++ ) {
final Expression expression = expressionsArray[i];
inspectExpression( reportDefinition, expression );
}
inspectElement( reportDefinition );
traverseSection( reportDefinition );
}
protected void traverseSection( final Section section ) {
traverseSectionWithSubReports( section );
}
protected void traverseSectionWithSubReports( final Section section ) {
final int count = section.getElementCount();
for ( int i = 0; i < count; i++ ) {
final ReportElement element = section.getElement( i );
if ( element instanceof SubReport ) {
inspect( (SubReport) element );
} else if ( element instanceof Section ) {
inspectElement( element );
traverseSection( (Section) element );
if ( element instanceof RootLevelBand ) {
final RootLevelBand rlb = (RootLevelBand) element;
for ( int sr = 0; sr < rlb.getSubReportCount(); sr += 1 ) {
inspect( rlb.getSubReport( sr ) );
}
}
} else {
inspectElement( element );
}
}
}
protected void traverseSectionWithoutSubReports( final Section section ) {
final int count = section.getElementCount();
for ( int i = 0; i < count; i++ ) {
final ReportElement element = section.getElement( i );
if ( element instanceof SubReport ) {
inspectElement( element );
} else if ( element instanceof Section ) {
inspectElement( element );
traverseSection( (Section) element );
} else {
inspectElement( element );
}
}
}
protected void inspectElement( final ReportElement element ) {
}
protected void traverseAttributeExpressions( final ReportElement element ) {
final String[] attrExprNamespaces = element.getAttributeExpressionNamespaces();
for ( int i = 0; i < attrExprNamespaces.length; i++ ) {
final String attrExprNamespace = attrExprNamespaces[i];
final String[] names = element.getAttributeExpressionNames( attrExprNamespace );
for ( int j = 0; j < names.length; j++ ) {
final String name = names[j];
final Expression expression = element.getAttributeExpression( attrExprNamespace, name );
if ( expression == null ) {
continue;
}
final String expressionName = expression.getClass().getName();
if ( ExpressionRegistry.getInstance().isExpressionRegistered( expressionName ) == false ) {
inspectAttributeExpression( element, attrExprNamespace, name, expression, null );
} else {
final ExpressionMetaData metaData = ExpressionRegistry.getInstance().getExpressionMetaData( expressionName );
inspectAttributeExpression( element, attrExprNamespace, name, expression, metaData );
}
}
}
}
protected void inspectAttributeExpression( final ReportElement element, final String attributeNamespace,
final String attributeName, final Expression expression, final ExpressionMetaData expressionMetaData ) {
}
protected void traverseStyleExpressions( final ReportElement element ) {
final Map map = element.getStyleExpressions();
final Iterator styleExprIt = map.entrySet().iterator();
while ( styleExprIt.hasNext() ) {
final Map.Entry entry = (Map.Entry) styleExprIt.next();
final StyleKey styleKey = (StyleKey) entry.getKey();
final Expression expression = (Expression) entry.getValue();
if ( expression == null ) {
continue;
}
final String expressionName = expression.getClass().getName();
if ( ExpressionRegistry.getInstance().isExpressionRegistered( expressionName ) == false ) {
inspectStyleExpression( element, styleKey, expression, null );
} else {
final ExpressionMetaData metaData = ExpressionRegistry.getInstance().getExpressionMetaData( expressionName );
inspectStyleExpression( element, styleKey, expression, metaData );
}
}
}
protected void inspectStyleExpression( final ReportElement element, final StyleKey styleKey,
final Expression expression, final ExpressionMetaData expressionMetaData ) {
}
protected void inspectExpression( final AbstractReportDefinition report, final Expression expression ) {
}
protected void inspectParameter( final AbstractReportDefinition report, final ReportParameterDefinition definition,
final ParameterDefinitionEntry parameter ) {
}
protected void inspectDataSource( final AbstractReportDefinition report, final DataFactory dataFactory ) {
}
}