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1: /** 2: * ======================================== 3: * JFreeReport : a free Java report library 4: * ======================================== 5: * 6: * Project Info: http://reporting.pentaho.org/ 7: * 8: * (C) Copyright 2000-2007, by Object Refinery Limited, Pentaho Corporation and Contributors. 9: * 10: * This library is free software; you can redistribute it and/or modify it under the terms 11: * of the GNU Lesser General Public License as published by the Free Software Foundation; 12: * either version 2.1 of the License, or (at your option) any later version. 13: * 14: * This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; 15: * without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 16: * See the GNU Lesser General Public License for more details. 17: * 18: * You should have received a copy of the GNU Lesser General Public License along with this 19: * library; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, 20: * Boston, MA 02111-1307, USA. 21: * 22: * [Java is a trademark or registered trademark of Sun Microsystems, Inc. 23: * in the United States and other countries.] 24: * 25: * ------------ 26: * $Id: FlowReportProcessor.java 2725 2007-04-01 18:49:29Z taqua $ 27: * ------------ 28: * (C) Copyright 2000-2005, by Object Refinery Limited. 29: * (C) Copyright 2005-2007, by Pentaho Corporation. 30: */ 31: package org.jfree.report.flow.flowing; 32: 33: import org.jfree.layouting.ChainingLayoutProcess; 34: import org.jfree.layouting.DefaultLayoutProcess; 35: import org.jfree.layouting.LayoutProcess; 36: import org.jfree.layouting.output.OutputProcessor; 37: import org.jfree.report.DataSourceException; 38: import org.jfree.report.ReportDataFactoryException; 39: import org.jfree.report.ReportProcessingException; 40: import org.jfree.report.flow.AbstractReportProcessor; 41: import org.jfree.report.flow.LibLayoutReportTarget; 42: import org.jfree.report.flow.ReportJob; 43: import org.jfree.resourceloader.ResourceKey; 44: import org.jfree.resourceloader.ResourceManager; 45: 46: /** 47: * This is written to use LibLayout. It will never work with other report 48: * targets. 49: * 50: * @author Thomas Morgner 51: */ 52: public class FlowReportProcessor extends AbstractReportProcessor 53: { 54: private OutputProcessor outputProcessor; 55: 56: public FlowReportProcessor() 57: { 58: } 59: 60: public OutputProcessor getOutputProcessor() 61: { 62: return outputProcessor; 63: } 64: 65: public void setOutputProcessor(final OutputProcessor outputProcessor) 66: { 67: this.outputProcessor = outputProcessor; 68: } 69: 70: protected LibLayoutReportTarget createTarget(final ReportJob job) 71: { 72: if (outputProcessor == null) 73: { 74: throw new IllegalStateException( 75: "OutputProcessor is invalid."); 76: } 77: final LayoutProcess layoutProcess = 78: new ChainingLayoutProcess(new DefaultLayoutProcess(outputProcessor)); 79: final ResourceManager resourceManager = job.getReportStructureRoot().getResourceManager(); 80: final ResourceKey resourceKey = job.getReportStructureRoot().getBaseResource(); 81: 82: return new LibLayoutReportTarget 83: (job, resourceKey, resourceManager, layoutProcess); 84: } 85: 86: /** 87: * Bootstraps the local report processing. This way of executing the report 88: * must be supported by *all* report processor implementations. It should 89: * fully process the complete report. 90: * 91: * @param job 92: * @throws ReportDataFactoryException 93: */ 94: public void processReport (final ReportJob job) 95: throws ReportDataFactoryException, DataSourceException, 96: ReportProcessingException 97: { 98: if (job == null) 99: { 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: }