Java Code Examples for org.apache.olingo.odata2.api.commons.HttpStatusCodes#fromStatusCode()

private void writeEntity(String absoluteUri, String content, String contentType, String httpMethod)
    throws IOException, URISyntaxException {

  print(httpMethod + " request on uri: " + absoluteUri + ":\n  " + content + "\n");
  //
  HttpURLConnection connection = initializeConnection(absoluteUri, contentType, httpMethod);
  byte[] buffer = content.getBytes("UTF-8");
  connection.getOutputStream().write(buffer);

  // if a entity is created (via POST request) the response body contains the new created entity
  HttpStatusCodes statusCode = HttpStatusCodes.fromStatusCode(connection.getResponseCode());
  if(statusCode == HttpStatusCodes.CREATED) {
    // get the content as InputStream and de-serialize it into an ODataEntry object
    InputStream responseContent = connection.getInputStream();
    logRawContent(httpMethod + " response:\n  ", responseContent, "\n");
  } else if(statusCode == HttpStatusCodes.NO_CONTENT) {
    print("No content.");
  } else {
    checkStatus(connection);
  }

  //
  connection.disconnect();
}
 

private HttpStatusCodes checkStatus(HttpURLConnection connection) throws IOException {
	HttpStatusCodes httpStatusCode = HttpStatusCodes.fromStatusCode(connection.getResponseCode());
	if (400 <= httpStatusCode.getStatusCode() && httpStatusCode.getStatusCode() <= 599) {
		throw new RuntimeException("Http Connection failed with status " + httpStatusCode.getStatusCode() + " "
				+ httpStatusCode.toString());
	}
	return httpStatusCode;
}
 

private ODataErrorContext createErrorContext(final WebApplicationException exception) {
  ODataErrorContext context = new ODataErrorContext();
  if (uriInfo != null) {
    context.setRequestUri(uriInfo.getRequestUri());
  }
  if (httpHeaders != null && httpHeaders.getRequestHeaders() != null) {
    MultivaluedMap<String, String> requestHeaders = httpHeaders.getRequestHeaders();
    Set<Entry<String, List<String>>> entries = requestHeaders.entrySet();
    for (Entry<String, List<String>> entry : entries) {
      context.putRequestHeader(entry.getKey(), entry.getValue());
    }
  }
  context.setContentType(getContentType().toContentTypeString());
  context.setException(exception);
  context.setErrorCode(null);
  context.setMessage(exception.getMessage());
  context.setLocale(DEFAULT_RESPONSE_LOCALE);
  HttpStatusCodes statusCode = HttpStatusCodes.fromStatusCode(exception.getResponse().getStatus());
  context.setHttpStatus(statusCode);
  if (statusCode == HttpStatusCodes.METHOD_NOT_ALLOWED) {
    // RFC 2616, 5.1.1: " An origin server SHOULD return the status code
    // 405 (Method Not Allowed) if the method is known by the origin server
    // but not allowed for the requested resource, and 501 (Not Implemented)
    // if the method is unrecognized or not implemented by the origin server."
    // Since all recognized methods are handled elsewhere, we unconditionally
    // switch to 501 here for not-allowed exceptions thrown directly from
    // JAX-RS implementations.
    context.setHttpStatus(HttpStatusCodes.NOT_IMPLEMENTED);
    context.setMessage("The request dispatcher does not allow the HTTP method used for the request.");
    context.setLocale(Locale.ENGLISH);
  }
  return context;
}
 

private HttpStatusCodes checkStatus(HttpURLConnection connection) throws IOException {
  HttpStatusCodes httpStatusCode = HttpStatusCodes.fromStatusCode(connection.getResponseCode());
  if (400 <= httpStatusCode.getStatusCode() && httpStatusCode.getStatusCode() <= 599) {
    connection.disconnect();
    throw new RuntimeException("Http Connection failed with status " + httpStatusCode.getStatusCode() + " " + httpStatusCode.toString());
  }
  return httpStatusCode;
}
 

private void checkStatus(final HttpURLConnection connection) throws IOException, HttpException {
  if (400 <= connection.getResponseCode() && connection.getResponseCode() <= 599) {
    HttpStatusCodes httpStatusCode = HttpStatusCodes.fromStatusCode(connection.getResponseCode());
    throw new HttpException(httpStatusCode, httpStatusCode.getStatusCode() + " " + httpStatusCode.toString());
  }
}