/**
* Converts an exception raised while processing an HTTP request into a suitable HTTP response.
*
* <p>The response is marshalled and queued for writing on the socket associated with the original
* request.
*
* @param msg The HTTP request being processed when the exception occurred.
* @param e The exception that was raised.
* @throws IOException if an error occurs marshalling or writing the response.
*/
protected void handleMessageException(HttpMessageBuffer msg, Exception e) throws IOException {
HttpResponse httpRsp;
if (e instanceof HttpResponseException) {
if (log.logWarn()) {
log.warn("HttpResponseException", e);
}
httpRsp = this.newHttpResponse(msg, (HttpResponseException) e);
this.queueWrite(msg.getSocket(), httpRsp.marshal(), true);
} else if (e instanceof RemoteSocketClosedException) {
if (log.logTrace()) {
log.trace("Remote entity closed connection", e);
}
} else {
if (log.logError()) {
log.error("Internal Server Error", e);
}
httpRsp =
this.newHttpResponse(
msg,
new HttpResponseException(
HttpConstants.StatusCodes._500_INTERNAL_SERVER_ERROR,
"Internal Server Error",
e));
this.queueWrite(msg.getSocket(), httpRsp.marshal(), true);
}
}
protected HttpResponse newHttpResponse(HttpMessageBuffer msg, HttpResponseException e) {
HttpResponse httpRsp = e.toHttpResponse(msg.getHttpVersionString());
if (msg.getHttpVersion() > 1.0) {
httpRsp.addHeader(HttpConstants.Headers.HOST, this.headerHostValue);
}
httpRsp.addHeader(HttpConstants.Headers.SERVER, this.getServerName());
httpRsp.addHeader(HttpConstants.Headers.CONNECTION, "close");
return httpRsp;
}
/**
* Constructs a new {@link HttpResponse} containing the given XML-RPC method response.
*
* <p>This implementation encodes the response using <code>UTF-8</code>, sets the status code to
* <code>200</code>, and sets <code>Content-Type</code> header to <code>text/xml</code> as
* required. No other headers are set.
*
* @param methodRsp The XML-RPC method response to be returned in the HTTP response.
* @param encoding An {@link Encoding} describing the encoding to use when constructing this
* message. This also informs the <code>Content-Encoding</code> header value. May be <code>
* null</code>.
* @return A new {@link HttpResponse} with the marshalled XML-RPC response as its content.
* @throws IOException if an error occurs while marshalling the XML-RPC response.
* @throws MarshallingException
*/
protected HttpResponse toHttpResponse(
HttpMessageBuffer origMsg, RpcResponse methodRsp, Encoding encoding)
throws IOException, MarshallingException {
ByteArrayOutputStream byteOs = new ByteArrayOutputStream();
methodRsp.marshal(byteOs, Charset.forName("UTF-8"));
byte[] rspXml = byteOs.toByteArray();
HttpResponse httpRsp = this.newHttpResponse(origMsg, 200, "OK", encoding);
httpRsp.addHeader(HttpConstants.Headers.CONTENT_TYPE, methodRsp.getContentType());
httpRsp.setContent(rspXml);
return httpRsp;
}
protected HttpResponse newHttpResponse(
HttpMessageBuffer origMsg, int statusCode, String reasonPhrase, Encoding encoding) {
Encoding responseEncoding = null;
if (this.encodeResponses) {
responseEncoding = encoding;
}
HttpResponse httpRsp;
if (origMsg == null) {
httpRsp = new HttpResponse(statusCode, reasonPhrase, responseEncoding);
} else {
httpRsp =
new HttpResponse(
origMsg.getHttpVersionString(), statusCode, reasonPhrase, responseEncoding);
}
if (origMsg.getHttpVersion() > 1.0) {
httpRsp.addHeader(HttpConstants.Headers.HOST, this.headerHostValue);
}
httpRsp.addHeader(HttpConstants.Headers.SERVER, this.getServerName());
return httpRsp;
}