/**
* JBoss, Home of Professional Open Source
* Copyright 2011, Red Hat, Inc. and/or its affiliates, and individual
* contributors by the @authors tag. See the copyright.txt in the
* distribution for a full listing of individual contributors.
*
* Licensed 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 org.jboss.seam.reports.jasper.renderer;
import java.io.IOException;
import java.io.OutputStream;
import net.sf.jasperreports.engine.JRException;
import net.sf.jasperreports.engine.JRExporter;
import net.sf.jasperreports.engine.JRExporterParameter;
import org.jboss.seam.reports.ReportException;
import org.jboss.seam.reports.ReportRenderer;
import org.jboss.seam.reports.jasper.JasperSeamReport;
public abstract class AbstractJasperReportRenderer implements ReportRenderer<JasperSeamReport> {
@Override
public void render(JasperSeamReport reportInstance, OutputStream output) throws IOException {
JRExporter exporter = getExporter();
exporter.setParameter(JRExporterParameter.JASPER_PRINT, reportInstance.getDelegate());
exporter.setParameter(JRExporterParameter.OUTPUT_STREAM, output);
try {
exporter.exportReport();
} catch (JRException e) {
throw new ReportException(e);
}
}
/**
* Returns the exporter
*
* @return
*/
protected abstract JRExporter getExporter();
}