You will have to write your InputStream
to your response OutputStream
as follows:
- Your
Content-Disposition
will have to beinline
. - Your
Content-Type
will have to beapplication/pdf
. - Your
Content-Length
will be the length (in bytes) of the total data in theInputStream
.
Once set, write the input stream data to output stream of the response.
Something of this effect:
/* (non-Javadoc)
* @see org.bfs.bayweb.util.renderer.ServletViewRenderer#render(javax.servlet.ServletRequest, javax.servlet.ServletResponse)
*/
public void render(ServletRequest request, ServletResponse response) throws IOException {
// TODO Auto-generated method stub
try {
ByteArrayOutputStream baos = new ByteArrayOutputStream();
byte[] buffer = new byte[DEFAULT_BUFFER_SIZE];
int inputStreamLength = 0;
int length = 0;
while ((length = getInputStream().read(buffer)) > 0) {
inputStreamLength += length;
baos.write(buffer, 0, length);
}
if (inputStreamLength > getContentLength()) {
setContentLength(inputStreamLength);
}
if (response instanceof HttpServletResponse) {
HttpServletResponse httpResponse = (HttpServletResponse) response;
httpResponse.reset();
httpResponse.setHeader("Content-Type", getContentType());
httpResponse.setHeader("Content-Length", String.valueOf(getContentLength()));
httpResponse.setHeader("Content-Disposition", "\"" + getContentDisposition() + "\"" + ((getFileName() != null && !getFileName().isEmpty()) ? "; filename=\"" + getFileName() + "\"": ""));
}
response.getOutputStream().write(baos.toByteArray(), 0, (int)getContentLength());
//finally
response.getOutputStream().flush();
//clear
baos = null;
} finally {
// TODO Auto-generated catch block
close(response.getOutputStream());
close(getInputStream());
}
}
private void close(Closeable resource) throws IOException {
if (resource != null) {
resource.close();
}
}