private <B, R> R executeRequest(
RequestSpec requestSpec,
PathParams pathParams,
B requestBody,
Class<R> responseType,
int expectedStatus) {
String url =
String.format(
ADMIN_URL_PREFIX + requestSpec.path(pathParams), scheme, host, port, urlPathPrefix);
RequestBuilder requestBuilder =
RequestBuilder.create(requestSpec.method().getName()).setUri(url);
if (requestBody != null) {
requestBuilder.setEntity(jsonStringEntity(Json.write(requestBody)));
}
String responseBodyString = safelyExecuteRequest(url, expectedStatus, requestBuilder.build());
return responseType == Void.class ? null : Json.read(responseBodyString, responseType);
}
private String urlFor(Class<? extends AdminTask> taskClass) {
RequestSpec requestSpec = adminRoutes.requestSpecForTask(taskClass);
checkNotNull(requestSpec, "No admin task URL is registered for " + taskClass.getSimpleName());
return String.format(ADMIN_URL_PREFIX + requestSpec.path(), scheme, host, port, urlPathPrefix);
}