private void sendResponse(
ChannelHandlerContext channel,
HttpRequest request,
String messageBody,
HttpResponseStatus status) {
HttpResponse response = new DefaultHttpResponse(HttpVersion.HTTP_1_1, status);
if (messageBody != null && !messageBody.isEmpty()) {
response.setContent(ChannelBuffers.copiedBuffer(messageBody, Constants.DEFAULT_CHARSET));
}
Tracker.getInstance().trackResponse(request, response);
HttpResponder.respond(channel, request, response);
}
/** @return {@link InputStream} from a {@link HttpResponse} */
InputStream getStream(HttpResponse response) {
try {
return response.getEntity().getContent();
} catch (Exception e) {
log.error("Error reading response. " + e.getMessage());
throw new CouchDbException(e);
}
}
/**
* Validates a HTTP response; on error cases logs status and throws relevant exceptions.
*
* @param response The HTTP response.
*/
private void validate(HttpResponse response) throws IOException {
int code = response.getStatusLine().getStatusCode();
if (code == 200 || code == 201 || code == 202) { // success (ok | created | accepted)
return;
}
String msg = format("<< Status: %s (%s) ", code, response.getStatusLine().getReasonPhrase());
switch (code) {
case HttpStatus.SC_NOT_FOUND:
{
log.info(msg);
throw new NoDocumentException(msg);
}
case HttpStatus.SC_CONFLICT:
{
log.warn(msg);
throw new DocumentConflictException(msg);
}
default:
{ // other errors: 400 | 401 | 500 etc.
log.error(msg += EntityUtils.toString(response.getEntity()));
throw new CouchDbException(msg);
}
}
}