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,v 1.8 2007/04/01 18:49:25 taqua Exp $
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 }