1 files changed, 103 insertions, 0 deletions
diff --git a/reportbuilder/java/org/libreoffice/report/pentaho/parser/rpt/FunctionReadHandler.java b/reportbuilder/java/org/libreoffice/report/pentaho/parser/rpt/FunctionReadHandler.java
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+++ b/reportbuilder/java/org/libreoffice/report/pentaho/parser/rpt/FunctionReadHandler.java
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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 org.libreoffice.report.pentaho.parser.rpt;
+
+import org.libreoffice.report.OfficeToken;
+import org.libreoffice.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 a unique name.
+ *
+ */
+public class FunctionReadHandler extends AbstractXmlReadHandler
+{
+
+    private Expression expression;
+
+    /**
+     * Starts parsing.
+     *
+     * @param attrs the attributes.
+     * @throws org.xml.sax.SAXException if there is a parsing error.
+     */
+    @Override
+    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;
+    }
+}