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/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you under the Apache
* License, Version 2.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.apache.org/licenses/LICENSE-2.0 .
*/
package com.sun.star.report.pentaho.parser.rpt;
import com.sun.star.report.OfficeToken;
import com.sun.star.report.pentaho.OfficeNamespaces;
import org.jfree.report.expressions.Expression;
import org.jfree.report.expressions.FormulaExpression;
import org.jfree.report.expressions.FormulaFunction;
import org.pentaho.reporting.libraries.xmlns.parser.AbstractXmlReadHandler;
import org.pentaho.reporting.libraries.xmlns.parser.ParseException;
import org.xml.sax.Attributes;
import org.xml.sax.SAXException;
/**
* Parses a named expression. These expressions are encountered on reports and
* groups and compute global values. Expressions must have an unique name.
*
* @author Thomas Morgner
*/
public class FunctionReadHandler extends AbstractXmlReadHandler
{
private Expression expression;
public FunctionReadHandler()
{
}
/**
* Starts parsing.
*
* @param attrs the attributes.
* @throws org.xml.sax.SAXException if there is a parsing error.
*/
protected void startParsing(final Attributes attrs)
throws SAXException
{
final String formula = attrs.getValue(OfficeNamespaces.OOREPORT_NS, "formula");
if (formula == null)
{
throw new ParseException("Required attribute 'formula' is missing", getLocator());
}
final String name = attrs.getValue(OfficeNamespaces.OOREPORT_NS, "name");
if (name == null)
{
throw new ParseException("Required attribute 'name' is missing", getLocator());
}
final String initialFormula = attrs.getValue(OfficeNamespaces.OOREPORT_NS, "initial-formula");
final String deepTraversing = attrs.getValue(OfficeNamespaces.OOREPORT_NS, "deep-traversing");
if (initialFormula != null)
{
final FormulaFunction function = new FormulaFunction();
function.setInitial(initialFormula);
function.setFormula(formula);
this.expression = function;
}
else
{
final FormulaExpression expression = new FormulaExpression();
expression.setFormula(formula);
this.expression = expression;
}
expression.setName(name);
expression.setDeepTraversing(OfficeToken.TRUE.equals(deepTraversing));
final String preEvaluated = attrs.getValue(OfficeNamespaces.OOREPORT_NS, "pre-evaluated");
expression.setPrecompute(OfficeToken.TRUE.equals(preEvaluated));
}
/**
* Returns the object for this element or null, if this element does not
* create an object.
*
* @return the object.
*/
public Object getObject()
throws SAXException
{
return getExpression();
}
public Expression getExpression()
{
return expression;
}
}
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