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package org.onap.ccsdk.dashboard.rest;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import org.json.JSONArray;
import org.json.JSONObject;
import org.onap.ccsdk.dashboard.model.ConsulDatacenter;
import org.onap.ccsdk.dashboard.model.ConsulHealthServiceRegistration;
import org.onap.ccsdk.dashboard.model.ConsulHealthServiceRegistration.EndpointCheck;
import org.onap.ccsdk.dashboard.model.ConsulNodeInfo;
import org.onap.ccsdk.dashboard.model.ConsulServiceHealth;
import org.onap.ccsdk.dashboard.model.ConsulServiceInfo;
import org.onap.portalsdk.core.logging.logic.EELFLoggerDelegate;
import org.springframework.core.ParameterizedTypeReference;
import org.springframework.http.HttpEntity;
import org.springframework.http.HttpHeaders;
import org.springframework.http.HttpMethod;
import org.springframework.http.MediaType;
import org.springframework.http.ResponseEntity;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.ObjectMapper;
public class ConsulRestClientImpl extends RestClientBase implements ConsulClient {
private static EELFLoggerDelegate logger = EELFLoggerDelegate.getLogger(ConsulRestClientImpl.class);
private final String baseUrl;
private final ObjectMapper objectMapper = new ObjectMapper();
private static final String API_VER = "v1";
private static final String CATALOG = "catalog";
private static final String SERVICES = "services";
private static final String HEALTH = "health";
private static final String CHECKS = "checks";
private static final String HEALTH_SERVICES = "healthservices";
public ConsulRestClientImpl(String webapiUrl, String user, String pass) {
super();
if (webapiUrl == null)
throw new IllegalArgumentException("Null URL not permitted");
URL url = null;
String urlScheme = "http";
try {
url = new URL(webapiUrl);
baseUrl = url.toExternalForm();
} catch (MalformedURLException ex) {
throw new RuntimeException("Failed to parse URL", ex);
}
urlScheme = webapiUrl.split(":")[0];
createRestTemplate(url, user, pass, urlScheme);
}
@Override
public List<ConsulServiceHealth> getServiceHealth(String dc, String srvc) {
String url = buildUrl(new String[] { baseUrl, API_VER, HEALTH, CHECKS, srvc}, new String[] {"dc", dc});
logger.debug(EELFLoggerDelegate.debugLogger, "getServiceHealth: url {}", url);
ResponseEntity<List<ConsulServiceHealth>> response = restTemplate.exchange(url, HttpMethod.GET, null,
new ParameterizedTypeReference<List<ConsulServiceHealth>>() {
});
return response.getBody();
}
@Override
public List<ConsulServiceInfo> getServices(String dc) {
String url = buildUrl(new String[] { baseUrl, API_VER, CATALOG, SERVICES}, new String[] {"dc", dc});
logger.debug(EELFLoggerDelegate.debugLogger, "getServices: url {}", url);
ResponseEntity<Map<String, Object>> response = restTemplate.exchange(url, HttpMethod.GET, null,
new ParameterizedTypeReference<Map<String, Object>>() {
});
Map<String, Object> serviceInfo = response.getBody();
List<ConsulServiceInfo> list = new ArrayList<>();
for (Map.Entry<String, Object> entry : serviceInfo.entrySet()) {
// Be defensive
List<String> addrs = null;
if (entry.getValue() instanceof List<?>)
addrs = (List<String>) entry.getValue();
else
addrs = new ArrayList<>();
list.add(new ConsulServiceInfo(entry.getKey(), addrs));
}
return list;
}
@Override
public List<ConsulNodeInfo> getNodes(String dc) {
String url = buildUrl(new String[] { baseUrl, API_VER, CATALOG, "nodes" }, new String[] {"dc", dc});
logger.debug(EELFLoggerDelegate.debugLogger, "getNodesHealth: url {}", url);
ResponseEntity<List<ConsulNodeInfo>> response = restTemplate.exchange(url, HttpMethod.GET, null,
new ParameterizedTypeReference<List<ConsulNodeInfo>>() {
});
return response.getBody();
}
@Override
public List<ConsulServiceHealth> getNodeServicesHealth(String dc, String nodeId) {
String url = buildUrl(new String[] { baseUrl, API_VER, HEALTH, "node", nodeId }, new String[] {"dc", dc});
logger.debug(EELFLoggerDelegate.debugLogger, "getNodeServicesHealth: url {}", url);
ResponseEntity<List<ConsulServiceHealth>> response = restTemplate.exchange(url, HttpMethod.GET, null,
new ParameterizedTypeReference<List<ConsulServiceHealth>>() {
});
return response.getBody();
}
@Override
public List<ConsulDatacenter> getDatacenters() {
String url = buildUrl(new String[] { baseUrl, API_VER, CATALOG, "datacenters" }, null);
logger.debug(EELFLoggerDelegate.debugLogger, "getDatacentersHealth: url {}", url);
ResponseEntity<List<String>> response = restTemplate.exchange(url, HttpMethod.GET, null,
new ParameterizedTypeReference<List<String>>() {
});
List<String> list = response.getBody();
List<ConsulDatacenter> result = new ArrayList<>();
for (String dc : list)
result.add(new ConsulDatacenter(dc));
return result;
}
@Override
public String registerService(ConsulHealthServiceRegistration registration) {
String url = buildUrl(new String[] { baseUrl, API_VER, "/agent/service/register" }, null);
logger.debug(EELFLoggerDelegate.debugLogger, "registerService: url {}", url);
String resultStr = "";
JSONObject outputJson = new JSONObject();
JSONObject checkObject = new JSONObject();
List<EndpointCheck> checks = registration.services.get(0).checks;
String service_name = registration.services.get(0).name;
String service_port = registration.services.get(0).port;
String service_address = registration.services.get(0).address;
List<String> tags = registration.services.get(0).tags;
outputJson.put("Name", service_name);
outputJson.put("ID", service_name);
outputJson.put("Port", Integer.parseInt(service_port));
outputJson.put("Address", service_address);
outputJson.put("Tags", tags);
if (checks.size() == 1) {
checkObject.put("HTTP", checks.get(0).endpoint);
checkObject.put("Interval", checks.get(0).interval);
if (!checks.get(0).description.isEmpty())
checkObject.put("Notes", checks.get(0).description);
checkObject.put("ServiceID", service_name);
outputJson.put("Check", checkObject);
} else {
JSONArray checks_new = new JSONArray();
for (EndpointCheck check : checks) {
checkObject.put("HTTP", check.endpoint);
checkObject.put("Interval", check.endpoint);
if (!check.description.isEmpty())
checkObject.put("Notes", check.description);
checkObject.put("ServiceID", service_name);
checks_new.put(checkObject);
}
outputJson.put("Checks", checks_new);
}
HttpHeaders headers = new HttpHeaders();
headers.setContentType(MediaType.APPLICATION_JSON);
HttpEntity<String> entity = new HttpEntity<String>(outputJson.toString(), headers);
ResponseEntity<JSONObject> result =
restTemplate.exchange(url, HttpMethod.PUT, entity,
new ParameterizedTypeReference<JSONObject>() {});
try {
resultStr = objectMapper.writeValueAsString(result);
} catch (JsonProcessingException e) {
} finally {
}
return resultStr;
}
@Override
public int deregisterService(String serviceName) {
String url = buildUrl(new String[] { baseUrl, API_VER, "/agent/service/deregister", serviceName}, null);
logger.debug(EELFLoggerDelegate.debugLogger, "deregisterService: url {}", url);
HttpHeaders headers = new HttpHeaders();
headers.setContentType(MediaType.APPLICATION_JSON);
HttpEntity<String> entity = new HttpEntity<String>(headers);
ResponseEntity<JSONObject> result =
restTemplate.exchange(url, HttpMethod.PUT, entity,
new ParameterizedTypeReference<JSONObject>() {});
return result.getStatusCode().value();
}
}
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