@Override
public ServicePolicies getServicePoliciesIfUpdated(long lastKnownVersion) throws Exception {
if (LOG.isDebugEnabled()) {
LOG.debug(
"==> RangerAdminJersey2RESTClient.getServicePoliciesIfUpdated(" + lastKnownVersion + ")");
}
ServicePolicies servicePolicies = null;
String url = _utils.getUrlForPolicyUpdate(_baseUrl, _serviceName);
try {
Response response =
_client
.target(url)
.queryParam(
RangerRESTUtils.REST_PARAM_LAST_KNOWN_POLICY_VERSION,
Long.toString(lastKnownVersion))
.queryParam(RangerRESTUtils.REST_PARAM_PLUGIN_ID, _pluginId)
.request(MediaType.APPLICATION_JSON_TYPE)
.get();
int httpResponseCode = response == null ? -1 : response.getStatus();
String body = null;
switch (httpResponseCode) {
case 200:
body = response.readEntity(String.class);
if (LOG.isDebugEnabled()) {
LOG.debug("Response from 200 server: " + body);
}
Gson gson = getGson();
servicePolicies = gson.fromJson(body, ServicePolicies.class);
if (LOG.isDebugEnabled()) {
LOG.debug("Deserialized response to: " + servicePolicies);
}
break;
case 304:
LOG.debug("Got response: 304. Ok. Returning null");
break;
case -1:
LOG.warn(
"Unexpected: Null response from policy server while trying to get policies! Returning null!");
break;
default:
body = response.readEntity(String.class);
LOG.warn(
String.format(
"Unexpected: Received status[%d] with body[%s] form url[%s]",
httpResponseCode, body, url));
break;
}
if (LOG.isDebugEnabled()) {
LOG.debug(
"<== RangerAdminJersey2RESTClient.getServicePoliciesIfUpdated("
+ lastKnownVersion
+ "): "
+ servicePolicies);
}
return servicePolicies;
} catch (Exception ex) {
LOG.error(
"Failed getting policies from server. url="
+ url
+ ", pluginId="
+ _pluginId
+ ", lastKnownVersion="
+ lastKnownVersion);
throw ex;
}
}
