1 files changed, 181 insertions, 0 deletions
diff --git a/reportbuilder/java/org/libreoffice/report/pentaho/parser/rpt/GroupReadHandler.java b/reportbuilder/java/org/libreoffice/report/pentaho/parser/rpt/GroupReadHandler.java
new file mode 100644
index 000000000..642c6ded9
--- /dev/null
+++ b/reportbuilder/java/org/libreoffice/report/pentaho/parser/rpt/GroupReadHandler.java
@@ -0,0 +1,181 @@
+/*
+ * 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.libreoffice.report.pentaho.model.OfficeGroup;
+import org.libreoffice.report.pentaho.model.OfficeGroupInstanceSection;
+import org.libreoffice.report.pentaho.parser.ElementReadHandler;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import org.jfree.report.JFreeReportInfo;
+import org.jfree.report.expressions.FormulaExpression;
+import org.jfree.report.structure.Element;
+import org.jfree.report.structure.Section;
+
+import org.pentaho.reporting.libraries.xmlns.parser.XmlReadHandler;
+
+import org.xml.sax.Attributes;
+import org.xml.sax.SAXException;
+
+
+public class GroupReadHandler extends ElementReadHandler
+{
+
+    private GroupSectionReadHandler groupHeader;
+    private GroupSectionReadHandler groupFooter;
+    private GroupReadHandler childGroup;
+    private RootTableReadHandler detailSection;
+    private final OfficeGroup group;
+    private final OfficeGroupInstanceSection groupInstanceSection;
+    private final List<FunctionReadHandler> functionHandlers;
+    private final ReportReadHandler rh;
+
+    public GroupReadHandler(final ReportReadHandler _rh)
+    {
+        rh = _rh;
+        group = new OfficeGroup();
+        groupInstanceSection = new OfficeGroupInstanceSection();
+        groupInstanceSection.setNamespace(JFreeReportInfo.REPORT_NAMESPACE);
+        groupInstanceSection.setType("group-instance");
+        group.addNode(groupInstanceSection);
+        functionHandlers = new ArrayList<FunctionReadHandler>();
+    }
+
+    /**
+     * 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
+    {
+        super.startParsing(attrs);
+
+        final String groupExpr = attrs.getValue(OfficeNamespaces.OOREPORT_NS, "group-expression");
+        if (groupExpr != null && !"".equals(groupExpr))
+        {
+            final FormulaExpression function = new FormulaExpression();
+            function.setFormula(groupExpr);
+            groupInstanceSection.setGroupingExpression(function);
+        }
+        final String sortExpr  = attrs.getValue(OfficeNamespaces.OOREPORT_NS, "sort-expression");
+        if (sortExpr != null && !"".equals(sortExpr))
+        {
+            groupInstanceSection.setSortingExpression(sortExpr);
+        }
+    }
+
+    /**
+     * Returns the handler for a child element.
+     *
+     * @param tagName the tag name.
+     * @param atts    the attributes.
+     * @return the handler or null, if the tagname is invalid.
+     * @throws org.xml.sax.SAXException if there is a parsing error.
+     */
+    @Override
+    protected XmlReadHandler getHandlerForChild(final String uri,
+            final String tagName,
+            final Attributes atts)
+            throws SAXException
+    {
+        if (!OfficeNamespaces.OOREPORT_NS.equals(uri))
+        {
+            return null;
+        }
+        if ("function".equals(tagName))
+        {
+            final FunctionReadHandler erh = new FunctionReadHandler();
+            functionHandlers.add(erh);
+            return erh;
+        }
+        if ("group-header".equals(tagName))
+        {
+            groupHeader = new GroupSectionReadHandler();
+            return groupHeader;
+        }
+        if ("group".equals(tagName))
+        {
+            childGroup = new GroupReadHandler(rh);
+            return childGroup;
+        }
+        if ("detail".equals(tagName))
+        {
+            detailSection = new DetailRootTableReadHandler();
+            rh.setDetail(detailSection);
+            return detailSection;
+        }
+        if ("group-footer".equals(tagName))
+        {
+            ((Element) ((Section) rh.getDetail().getElement()).getNode(0)).setAttribute(JFreeReportInfo.REPORT_NAMESPACE, "has-group-footer", OfficeToken.TRUE);
+            groupFooter = new GroupSectionReadHandler();
+            return groupFooter;
+        }
+        return null;
+    }
+
+    /**
+     * Done parsing.
+     *
+     * @throws org.xml.sax.SAXException if there is a parsing error.
+     */
+    @Override
+    protected void doneParsing() throws SAXException
+    {
+        for (int i = 0; i < functionHandlers.size(); i++)
+        {
+            final FunctionReadHandler handler = functionHandlers.get(i);
+            groupInstanceSection.addExpression(handler.getExpression());
+        }
+
+        if (groupHeader != null)
+        {
+            groupInstanceSection.addNode(groupHeader.getElement());
+        }
+
+        final Section groupBody = new Section();
+        groupBody.setNamespace(JFreeReportInfo.REPORT_NAMESPACE);
+        groupBody.setType("group-body");
+        groupInstanceSection.addNode(groupBody);
+        // XOR: Either the detail or the group section can be set ..
+        if (detailSection != null)
+        {
+            groupBody.addNode(detailSection.getElement());
+        }
+        else if (childGroup != null)
+        {
+            groupBody.addNode(childGroup.getElement());
+        }
+
+        if (groupFooter != null)
+        {
+            groupInstanceSection.addNode(groupFooter.getElement());
+        }
+    }
+
+    @Override
+    public Element getElement()
+    {
+        return group;
+    }
+}