| /************************************************************** |
| * |
| * 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 com.sun.star.report.pentaho.model.OfficeGroup; |
| import com.sun.star.report.pentaho.model.OfficeGroupInstanceSection; |
| import com.sun.star.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 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(); |
| } |
| |
| /** |
| * 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 |
| { |
| 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); |
| } |
| } |
| |
| /** |
| * 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. |
| */ |
| 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. |
| */ |
| protected void doneParsing() throws SAXException |
| { |
| for (int i = 0; i < functionHandlers.size(); i++) |
| { |
| final FunctionReadHandler handler = |
| (FunctionReadHandler) 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()); |
| } |
| } |
| |
| public Element getElement() |
| { |
| return group; |
| } |
| } |