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: FlowReportProcessor.java 3048 2007-07-28 18:02:42Z tmorgner $ 027 * ------------ 028 * (C) Copyright 2000-2005, by Object Refinery Limited. 029 * (C) Copyright 2005-2007, by Pentaho Corporation. 030 */ 031 package org.jfree.report.flow.flowing; 032 033 import org.jfree.layouting.ChainingLayoutProcess; 034 import org.jfree.layouting.DefaultLayoutProcess; 035 import org.jfree.layouting.LayoutProcess; 036 import org.jfree.layouting.output.OutputProcessor; 037 import org.jfree.report.DataSourceException; 038 import org.jfree.report.ReportDataFactoryException; 039 import org.jfree.report.ReportProcessingException; 040 import org.jfree.report.flow.AbstractReportProcessor; 041 import org.jfree.report.flow.LibLayoutReportTarget; 042 import org.jfree.report.flow.ReportJob; 043 import org.jfree.resourceloader.ResourceKey; 044 import org.jfree.resourceloader.ResourceManager; 045 046 /** 047 * This is written to use LibLayout. It will never work with other report 048 * targets. 049 * 050 * @author Thomas Morgner 051 */ 052 public class FlowReportProcessor extends AbstractReportProcessor 053 { 054 private OutputProcessor outputProcessor; 055 056 public FlowReportProcessor() 057 { 058 } 059 060 public OutputProcessor getOutputProcessor() 061 { 062 return outputProcessor; 063 } 064 065 public void setOutputProcessor(final OutputProcessor outputProcessor) 066 { 067 this.outputProcessor = outputProcessor; 068 } 069 070 protected LibLayoutReportTarget createTarget(final ReportJob job) 071 { 072 if (outputProcessor == null) 073 { 074 throw new IllegalStateException( 075 "OutputProcessor is invalid."); 076 } 077 final LayoutProcess layoutProcess = 078 new ChainingLayoutProcess(new DefaultLayoutProcess(outputProcessor)); 079 final ResourceManager resourceManager = job.getReportStructureRoot().getResourceManager(); 080 final ResourceKey resourceKey = job.getReportStructureRoot().getBaseResource(); 081 082 return new LibLayoutReportTarget 083 (job, resourceKey, resourceManager, layoutProcess); 084 } 085 086 /** 087 * Bootstraps the local report processing. This way of executing the report 088 * must be supported by *all* report processor implementations. It should 089 * fully process the complete report. 090 * 091 * @param job 092 * @throws ReportDataFactoryException 093 */ 094 public void processReport (final ReportJob job) 095 throws ReportDataFactoryException, DataSourceException, 096 ReportProcessingException 097 { 098 if (job == null) 099 { 100 throw new NullPointerException(); 101 } 102 103 synchronized (job) 104 { 105 // first, compute the globals 106 processReportRun(job, createTarget(job)); 107 // second, paginate (this splits the stream into flows) 108 processReportRun(job, createTarget(job)); 109 // third, generate the content. 110 processReportRun(job, createTarget(job)); 111 } 112 } 113 114 }