import java.io.IOException;
import java.io.Writer;
import java.sql.Connection;
import java.sql.SQLException;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
import java.util.Vector;

import dori.jasper.engine.JRException;
import dori.jasper.engine.JRExporterParameter;
import dori.jasper.engine.JasperFillManager;
import dori.jasper.engine.JasperPrint;
import dori.jasper.engine.export.JRHtmlExporter;
import dori.jasper.engine.export.JRHtmlExporterParameter;

/*
 * Created on 5/11/2003
 *
 * To change the template for this generated file go to
 * Window>Preferences>Java>Code Generation>Code and Comments
 */

/**
 * @author bsutton
 *
 * To change the template for this generated type comment go to
 * Window>Preferences>Java>Code Generation>Code and Comments
 */
public class JasperHTMLReport extends JasperReport
{
	JasperPrint m_jasperPrint;
	Map m_imagesMap = new HashMap();
		
	JasperHTMLReport(
		String strReportPath,
		String strTitle,
		String strImagePath,
		Map mapParameters)
		throws JRException, IOException
	{
		super(strReportPath, strTitle, strImagePath, mapParameters);
	}


	protected void write(Connection conn, Writer out)
		throws IOException, SQLException, JRException
	{
		//validate();
		format(conn);
		output(out);
	}

	protected void format(Connection conn) throws SQLException, JRException
	{
		m_jasperPrint =
			JasperFillManager.fillReport(m_report, m_mapParameters, conn);
	}

	protected void output(Writer out) throws JRException, IOException
	{
		JRHtmlExporter exporter = new JRHtmlExporter();

		StringBuffer sbuffer = new StringBuffer();

		exporter.setParameter(
			JRExporterParameter.JASPER_PRINT,
			m_jasperPrint);

		exporter.setParameter(
			JRExporterParameter.OUTPUT_STRING_BUFFER,
			sbuffer);

			
		exporter.setParameter(
			JRHtmlExporterParameter.IMAGES_MAP,
			m_imagesMap);

		exporter.setParameter(
			JRHtmlExporterParameter.IMAGES_URI,
			getImageURI());

		// Export the report to the string buffer sbuffer.
		exporter.exportReport();

		// Write report to browser.
		out.write(sbuffer.toString());
	}

	/**
	 * Returns a vector containing all images used by the
	 * report as DataSource's.
	 * @return
	 */
	public Vector getImageDataSource()
	{
		if (m_jasperPrint == null)
			throw new IllegalStateException("You must call send() before this function.");
		Vector vImages = new Vector();		
		Iterator iterKey = m_imagesMap.keySet().iterator();
		while (iterKey.hasNext())
		{
			String strSource = (String)iterKey.next();
			byte[] imageData = (byte[])m_imagesMap.get(strSource);
			vImages.add(new ByteArrayDataSource(strSource, imageData, "image/gif"));
		}
		return vImages;
	}

	protected String getImageURI()
	{
		return "cid:";
	}
}