| /************************************************************** |
| * |
| * 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 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| * |
| *************************************************************/ |
| |
| |
| 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; |
| } |
| } |