001 /** 002 * ======================================== 003 * JFreeReport : a free Java report library 004 * ======================================== 005 * 006 * Project Info: http://reporting.pentaho.org/ 007 * 008 * (C) Copyright 2000-2007, by Object Refinery Limited, Pentaho Corporation and Contributors. 009 * 010 * This library is free software; you can redistribute it and/or modify it under the terms 011 * of the GNU Lesser General Public License as published by the Free Software Foundation; 012 * either version 2.1 of the License, or (at your option) any later version. 013 * 014 * This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; 015 * without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 016 * See the GNU Lesser General Public License for more details. 017 * 018 * You should have received a copy of the GNU Lesser General Public License along with this 019 * library; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, 020 * Boston, MA 02111-1307, USA. 021 * 022 * [Java is a trademark or registered trademark of Sun Microsystems, Inc. 023 * in the United States and other countries.] 024 * 025 * ------------ 026 * $Id: AbstractReportProcessor.java 2725 2007-04-01 18:49:29Z taqua $ 027 * ------------ 028 * (C) Copyright 2000-2005, by Object Refinery Limited. 029 * (C) Copyright 2005-2007, by Pentaho Corporation. 030 */ 031 032 package org.jfree.report.flow; 033 034 import org.jfree.formula.DefaultFormulaContext; 035 import org.jfree.report.DataSourceException; 036 import org.jfree.report.ReportDataFactoryException; 037 import org.jfree.report.ReportProcessingException; 038 import org.jfree.report.data.ReportContextImpl; 039 import org.jfree.report.flow.layoutprocessor.DefaultLayoutControllerFactory; 040 import org.jfree.report.flow.layoutprocessor.LayoutController; 041 import org.jfree.report.flow.layoutprocessor.LayoutControllerFactory; 042 043 /** 044 * Creation-Date: 10.11.2006, 16:07:26 045 * 046 * @author Thomas Morgner 047 */ 048 public abstract class AbstractReportProcessor implements ReportProcessor 049 { 050 protected AbstractReportProcessor() 051 { 052 } 053 054 protected void processReportRun 055 (final ReportJob job, 056 final ReportTarget target) 057 throws ReportDataFactoryException, 058 DataSourceException, ReportProcessingException 059 { 060 synchronized (job) 061 { 062 final ReportContext context = createReportContext(job, target); 063 final LayoutControllerFactory layoutFactory = 064 context.getLayoutControllerFactory(); 065 // we have the data and we have our position inside the report. 066 // lets generate something ... 067 final FlowController flowController = createFlowControler(context, job); 068 069 LayoutController layoutController = 070 layoutFactory.create(flowController, job.getReportStructureRoot(), null); 071 072 while (layoutController.isAdvanceable()) 073 { 074 layoutController = layoutController.advance(target); 075 while (layoutController.isAdvanceable() == false && 076 layoutController.getParent() != null) 077 { 078 final LayoutController parent = layoutController.getParent(); 079 target.commit(); 080 layoutController = parent.join(layoutController.getFlowController()); 081 } 082 } 083 target.commit(); 084 } 085 } 086 087 protected ReportContext createReportContext (final ReportJob job, 088 final ReportTarget target) 089 { 090 final ReportContextImpl context = new ReportContextImpl(); 091 context.setExportDescriptor(target.getExportDescriptor()); 092 final DefaultLayoutControllerFactory lcf = new DefaultLayoutControllerFactory(); 093 lcf.initialize(job); 094 context.setLayoutControllerFactory(lcf); 095 096 final DefaultFormulaContext formulaContext = new DefaultFormulaContext(); 097 context.setFormulaContext(formulaContext); 098 context.setResourceBundleFactory(job.getResourceBundleFactory()); 099 context.setReportStructureRoot(job.getReportStructureRoot()); 100 return context; 101 } 102 103 protected FlowController createFlowControler(final ReportContext context, 104 final ReportJob job) 105 throws DataSourceException 106 { 107 return new DefaultFlowController(context, job); 108 } 109 110 }