public void exception(NHttpServerConnection conn, Exception ex) {
if (ex instanceof IOException) {
logIOException(conn, (IOException) ex);
metrics.incrementFaultsReceiving();
ProtocolState state = SourceContext.getState(conn);
if (state == ProtocolState.REQUEST_BODY || state == ProtocolState.REQUEST_HEAD) {
informReaderError(conn);
} else if (state == ProtocolState.RESPONSE_BODY || state == ProtocolState.RESPONSE_HEAD) {
informWriterError(conn);
} else if (state == ProtocolState.REQUEST_DONE) {
informWriterError(conn);
} else if (state == ProtocolState.RESPONSE_DONE) {
informWriterError(conn);
}
SourceContext.updateState(conn, ProtocolState.CLOSED);
sourceConfiguration.getSourceConnections().shutDownConnection(conn);
} else if (ex instanceof HttpException) {
try {
if (conn.isResponseSubmitted()) {
sourceConfiguration.getSourceConnections().shutDownConnection(conn);
return;
}
HttpContext httpContext = conn.getContext();
HttpResponse response =
new BasicHttpResponse(HttpVersion.HTTP_1_1, HttpStatus.SC_BAD_REQUEST, "Bad request");
response.setParams(
new DefaultedHttpParams(sourceConfiguration.getHttpParams(), response.getParams()));
response.addHeader(HTTP.CONN_DIRECTIVE, HTTP.CONN_CLOSE);
// Pre-process HTTP request
httpContext.setAttribute(ExecutionContext.HTTP_CONNECTION, conn);
httpContext.setAttribute(ExecutionContext.HTTP_REQUEST, null);
httpContext.setAttribute(ExecutionContext.HTTP_RESPONSE, response);
sourceConfiguration.getHttpProcessor().process(response, httpContext);
conn.submitResponse(response);
SourceContext.updateState(conn, ProtocolState.CLOSED);
conn.close();
} catch (Exception ex1) {
log.error(ex.getMessage(), ex);
SourceContext.updateState(conn, ProtocolState.CLOSED);
sourceConfiguration.getSourceConnections().shutDownConnection(conn);
}
} else {
log.error("Unexoected error: " + ex.getMessage(), ex);
SourceContext.updateState(conn, ProtocolState.CLOSED);
sourceConfiguration.getSourceConnections().shutDownConnection(conn);
}
}
/**
* Commit the response to the connection. Processes the response through the configured
* HttpProcessor and submits it to be sent out. This method hides any exceptions and is targetted
* for non critical (i.e. browser requests etc) requests, which are not core messages
*
* @param conn the connection being processed
* @param response the response to commit over the connection
*/
public void commitResponseHideExceptions(
final NHttpServerConnection conn, final HttpResponse response) {
try {
conn.suspendInput();
sourceConfiguration.getHttpProcessor().process(response, conn.getContext());
conn.submitResponse(response);
} catch (HttpException e) {
handleException("Unexpected HTTP protocol error : " + e.getMessage(), e, conn);
} catch (IOException e) {
handleException("IO error submiting response : " + e.getMessage(), e, conn);
}
}