org.jdal.util.processor.JasperReportFileProcessor.java Source code

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Here is the source code for org.jdal.util.processor.JasperReportFileProcessor.java

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/*
 * Copyright 2008-2011 the original author or authors.
 *
 * 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.jdal.util.processor;

import java.awt.Desktop;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.sql.Connection;
import java.util.HashMap;
import java.util.Map;

import net.sf.jasperreports.engine.JRDataSource;
import net.sf.jasperreports.engine.JREmptyDataSource;
import net.sf.jasperreports.engine.JRException;
import net.sf.jasperreports.engine.JRExporter;
import net.sf.jasperreports.engine.JRExporterParameter;
import net.sf.jasperreports.engine.JRParameter;
import net.sf.jasperreports.engine.JasperCompileManager;
import net.sf.jasperreports.engine.JasperExportManager;
import net.sf.jasperreports.engine.JasperFillManager;
import net.sf.jasperreports.engine.JasperPrint;
import net.sf.jasperreports.engine.JasperReport;
import net.sf.jasperreports.engine.export.JRPdfExporter;
import net.sf.jasperreports.engine.export.JRXlsExporter;

import org.apache.commons.io.FileUtils;

/**
 * Process a jasper file using the connection in the system to retrieve the data.
 * 
 * @author Jose A. Corbacho
 * @since 1.0
 */
public class JasperReportFileProcessor implements FileProcessor {

    private byte[] rawData;
    // The connection used to fill the report
    private Connection conn;

    private JRDataSource service;

    private Map<String, Object> parameters = new HashMap<String, Object>();

    public JasperReportFileProcessor() {
    }

    public JasperReportFileProcessor(Connection conn) {
        this.conn = conn;
    }

    public void processFile(File file, String outputType, boolean hasQuery) {
        try {
            // Fill the report using the connection
            JasperPrint print = null;
            if (hasQuery)
                print = JasperFillManager.fillReport(new FileInputStream(file), parameters, conn);
            else
                print = JasperFillManager.fillReport(new FileInputStream(file), parameters, service);

            // Create a PDF exporter
            // Configure the exporter (set output file name and print object)
            ByteArrayOutputStream baos = new ByteArrayOutputStream();

            // By default, PDF
            JRExporter exporter = new JRPdfExporter();

            if ("pdf".equals(outputType)) {
                exporter = new JRPdfExporter();
            } else if ("xls".equals(outputType)) {
                exporter = new JRXlsExporter();
            }

            exporter.setParameter(JRExporterParameter.JASPER_PRINT, print);
            exporter.setParameter(JRExporterParameter.OUTPUT_STREAM, baos);
            exporter.exportReport();
            setRawData(baos.toByteArray());

        } catch (JRException e) {
            e.printStackTrace();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    public void processFile(byte[] rawData) {
        // TODO Auto-generated method stub
    }

    public void setRawData(byte[] data) {
        this.rawData = data;
    }

    public byte[] getRawData() {
        return rawData;
    }

    public void setConnection(Connection conn) {
        this.conn = conn;
    }

    public static void main(String[] args) {
        try {
            JasperReport report = JasperCompileManager
                    .compileReport("/home/jose/Projects/telmma/Documents/Code/testParameters.jrxml");

            System.out.println("Query en el jasper: " + report.getQuery().getText());
            for (JRParameter param : report.getParameters()) {
                if (!param.isSystemDefined())
                    System.out.println(param.getName());
            }
            Map<String, Object> parameters = new HashMap<String, Object>();
            // TEST
            parameters.put("NombreCiudad", "Huelva");

            JasperPrint jasperPrint = JasperFillManager.fillReport(report, parameters, new JREmptyDataSource());
            byte[] reportBin = JasperExportManager.exportReportToPdf(jasperPrint);

            if (Desktop.isDesktopSupported()) {
                Desktop desktop = Desktop.getDesktop();
                File outputFile;
                try {
                    outputFile = File.createTempFile("simple_report", ".pdf");
                    //outputFile.deleteOnExit();
                    // Create the file with the raw data provided by the file processor 
                    FileUtils.writeByteArrayToFile(outputFile, reportBin);

                    System.out.println("OutputFile -> " + outputFile.getName() + " " + outputFile.getTotalSpace());

                    desktop.open(outputFile);
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
        } catch (JRException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }

    }

    public void setService(JRDataSource service) {
        this.service = service;
    }

    public void setParameters(Map<String, Object> parameters) {
        this.parameters = parameters;
    }
}