/**
* Create a Netflix {@link RestClient} integrated with Ribbon if none already exists in the
* application context. It is not required for Ribbon to work properly and is therefore created
* lazily if ever another component requires it.
*
* @param config the configuration to use by the underlying Ribbon instance
* @param loadBalancer the load balancer to use by the underlying Ribbon instance
* @return a {@link RestClient} instances backed by Ribbon
*/
@Bean
@Lazy
@ConditionalOnMissingBean
public RestClient ribbonRestClient(
IClientConfig config, ILoadBalancer loadBalancer, ServerIntrospector serverIntrospector) {
RestClient client = new OverrideRestClient(config, serverIntrospector);
client.setLoadBalancer(loadBalancer);
Monitors.registerObject("Client_" + this.name, client);
return client;
}
@Override
protected String run() {
try {
// The named client param must match the prefix for the ribbon
// configuration specified in the edge.properties file
RestClient client = (RestClient) ClientFactory.getNamedClient("middletier-client");
// MultivaluedMap<String, String> headers = new MultivaluedMapImpl();
// headers.putSingle("Content-Type", "text/plain");
// Note: If running locally on MacOS, you'll need to make sure your
// /etc/hosts file contains the following entry:
// 127.0.0.1 <hostname>.local
// or else this will likely fail.
HttpClientRequest request =
HttpClientRequest.newBuilder()
.setVerb(Verb.GET)
.setUri(
new URI(
"/"
+ FluxConstants.MIDDLETIER_WEB_RESOURCE_ROOT_PATH
+ "/"
+ FluxConstants.MIDDLETIER_WEB_RESOURCE_VERSION
+ "/"
+ FluxConstants.MIDDLETIER_WEB_RESOURCE_GET_PATH
+ "/"
+ key))
// .setHeaders(headers)
.build();
HttpClientResponse response = client.executeWithLoadBalancer(request);
if (response.getStatus() != 200) {
logger.error("error status: {}", response.getStatus());
throw new Exception("error status: " + response.getStatus());
}
return IOUtils.toString(response.getRawEntity(), Charsets.UTF_8);
} catch (Exception exc) {
logger.error("Exception calling middletier while retrieving logs.", exc);
throw new RuntimeException("Exception", exc);
}
}
HttpClientResponse forward() throws Exception {
NFRequestContext context = NFRequestContext.getCurrentContext();
HttpClientRequest httpClientRequest =
HttpClientRequest.newBuilder()
.setVerb(verb)
.setUri(uri)
.setHeaders(headers)
.setEntity(requestEntity)
.setQueryParams(params)
.build();
HttpClientResponse response = restClient.executeWithLoadBalancer(httpClientRequest);
context.setZuulResponse(response);
return response;
}
