/**
* Copyright (c) 2009--2010 Red Hat, Inc.
*
* This software is licensed to you under the GNU General Public License,
* version 2 (GPLv2). There is NO WARRANTY for this software, express or
* implied, including the implied warranties of MERCHANTABILITY or FITNESS
* FOR A PARTICULAR PURPOSE. You should have received a copy of GPLv2
* along with this software; if not, see
* http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.
*
* Red Hat trademarks are not licensed under GPLv2. No permission is
* granted to use or replicate Red Hat trademarks that are incorporated
* in this software or its documentation.
*/
package com.redhat.rhn.common.util;
import java.io.IOException;
import java.io.OutputStream;
import java.util.List;
import javax.servlet.http.HttpServletResponse;
/**
* ServletExportHandler - util for taking an ExportWriter and writing it
* out to a HttpServletResponse.
* @version $Rev$
*/
public class ServletExportHandler {
private ExportWriter writer;
/**
* Constructor with passed in ExportWriter
* @param writerIn ExportWriter to use
*/
public ServletExportHandler(ExportWriter writerIn) {
this.writer = writerIn;
}
/**
* Write the contents of the ExportWriter to the HttpServletResponse
* @param response to write the contents of the ExportWriter to
* @param pageList List of data to be exported to the Response
* @throws IOException if there is an error trying to write to the Response
*/
public void writeExporterToOutput(HttpServletResponse response,
List pageList) throws IOException {
String charSet = response.getCharacterEncoding();
response.setContentType(writer.getMimeType() + ";charset=" + charSet);
response.setHeader("Content-Disposition", "attachment; filename=download." +
writer.getFileExtension());
writer.write(pageList);
OutputStream out = response.getOutputStream();
out.write(writer.getContents().getBytes());
out.flush();
}
}