binky.reportrunner.engine.renderers.exporters.TabbedXLSExporter.java Source code

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Here is the source code for binky.reportrunner.engine.renderers.exporters.TabbedXLSExporter.java

Source

/*******************************************************************************
 * Copyright (c) 2009 Daniel Grout.
 * 
 * GNU GENERAL PUBLIC LICENSE - Version 3
 * 
 * This file is part of Report Runner (http://code.google.com/p/reportrunner).
 * 
 * Report Runner is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 * 
 * Report Runner is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with Report Runner. If not, see <http://www.gnu.org/licenses/>.
 * 
 * Module: XLSExporter.java
 ******************************************************************************/
package binky.reportrunner.engine.renderers.exporters;

import java.io.IOException;
import java.io.OutputStream;
import java.sql.ResultSet;
import java.sql.ResultSetMetaData;
import java.sql.SQLException;

import org.apache.log4j.Logger;
import org.apache.poi.hssf.usermodel.HSSFCell;
import org.apache.poi.hssf.usermodel.HSSFFont;
import org.apache.poi.hssf.usermodel.HSSFRichTextString;
import org.apache.poi.hssf.usermodel.HSSFRow;
import org.apache.poi.hssf.usermodel.HSSFSheet;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;

import binky.reportrunner.exceptions.ExportException;

public class TabbedXLSExporter extends AbstractExporter {

    private OutputStream outputStream;

    private HSSFWorkbook wb;

    public void writeData() throws IOException {
        // Write the output to the stream file
        logger.debug("flusing xls data");
        wb.write(outputStream);
        outputStream.flush();
    }

    private static final Logger logger = Logger.getLogger(TabbedXLSExporter.class);

    @SuppressWarnings("deprecation")
    @Override
    public void export(ResultSet resultSet, String label, OutputStream outputStream) throws ExportException {

        if (this.outputStream == null)
            this.outputStream = outputStream;

        try {
            if (wb == null) {
                logger.trace("creating new workbook");
                wb = new HSSFWorkbook();
            }

            logger.trace("creaing worksheet " + label);
            HSSFSheet sheet = wb.createSheet(label);
            ResultSetMetaData metaData;

            metaData = resultSet.getMetaData();

            short rowCount = 0;
            // logger.debug("writing header");
            HSSFRow headerRow = sheet.createRow(rowCount);
            for (int i = 1; i <= metaData.getColumnCount(); i++) {
                // TODO:fix
                HSSFCell cell = headerRow.createCell((short) (i - 1));
                HSSFRichTextString string = new HSSFRichTextString(metaData.getColumnName(i));
                string.applyFont(HSSFFont.BOLDWEIGHT_BOLD);
                cell.setCellValue(string);
            }

            while (resultSet.next()) {
                rowCount++;
                HSSFRow row = sheet.createRow(rowCount);
                for (int i = 1; i <= metaData.getColumnCount(); i++) {
                    // TODO:fix
                    HSSFCell cell = row.createCell((short) (i - 1));

                    // TODO:make this better by using types
                    HSSFRichTextString string = new HSSFRichTextString("" + resultSet.getObject(i));
                    cell.setCellValue(string);

                }
            }

        } catch (SQLException e) {
            throw new ExportException(e.getMessage(), e);
        }
    }

}