Merge "Trust level updates with dmi status change"

[cps.git] / cps-ncmp-service / src / main / java / org / onap / cps / ncmp / api / impl / client / DmiRestClient.java

diff --git a/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/impl/client/DmiRestClient.java b/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/impl/client/DmiRestClient.java
index a098340..b6eb092 100644 (file)
--- a/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/impl/client/DmiRestClient.java
+++ b/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/impl/client/DmiRestClient.java
@@ -21,7 +21,9 @@
 
 package org.onap.cps.ncmp.api.impl.client;
 
-import lombok.AllArgsConstructor;
+import com.fasterxml.jackson.databind.JsonNode;
+import lombok.RequiredArgsConstructor;
+import lombok.extern.slf4j.Slf4j;
 import org.onap.cps.ncmp.api.impl.config.NcmpConfiguration.DmiProperties;
 import org.onap.cps.ncmp.api.impl.exception.HttpClientRequestException;
 import org.onap.cps.ncmp.api.impl.operations.OperationType;
@@ -34,17 +36,21 @@ import org.springframework.web.client.HttpStatusCodeException;
 import org.springframework.web.client.RestTemplate;
 
 @Component
-@AllArgsConstructor
+@RequiredArgsConstructor
+@Slf4j
 public class DmiRestClient {
 
-    private RestTemplate restTemplate;
-    private DmiProperties dmiProperties;
+    private static final String HEALTH_CHECK_URL_EXTENSION = "/actuator/health";
+    private static final String EMPTY_STRING = "";
+    private final RestTemplate restTemplate;
+    private final DmiProperties dmiProperties;
 
     /**
      * Sends POST operation to DMI with json body containing module references.
-     * @param dmiResourceUrl dmi resource url
+     *
+     * @param dmiResourceUrl          dmi resource url
      * @param requestBodyAsJsonString json data body
-     * @param operationType the type of operation being executed (for error reporting only)
+     * @param operationType           the type of operation being executed (for error reporting only)
      * @return response entity of type String
      */
     public ResponseEntity<Object> postOperationWithJsonData(final String dmiResourceUrl,
@@ -56,7 +62,27 @@ public class DmiRestClient {
         } catch (final HttpStatusCodeException httpStatusCodeException) {
             final String exceptionMessage = "Unable to " + operationType.toString() + " resource data.";
             throw new HttpClientRequestException(exceptionMessage, httpStatusCodeException.getResponseBodyAsString(),
-                    httpStatusCodeException.getStatusCode().value());
+                httpStatusCodeException.getStatusCode().value());
+        }
+    }
+
+    /**
+     * Get DMI plugin health status.
+     *
+     * @param       dmiPluginBaseUrl the base URL of the dmi-plugin
+     * @return      plugin health status ("UP" is all OK, EMPTY_STRING in case of any exception)
+     */
+    public String getDmiHealthStatus(final String dmiPluginBaseUrl) {
+        final HttpEntity<Object> httpHeaders = new HttpEntity<>(configureHttpHeaders(new HttpHeaders()));
+        try {
+            final JsonNode responseHealthStatus =
+                restTemplate.getForObject(dmiPluginBaseUrl + HEALTH_CHECK_URL_EXTENSION,
+                JsonNode.class, httpHeaders);
+            return responseHealthStatus == null ? EMPTY_STRING :
+                responseHealthStatus.get("status").asText();
+        } catch (final Exception e) {
+            log.warn("Failed to retrieve health status from {}. Error Message: {}", dmiPluginBaseUrl, e.getMessage());
+            return EMPTY_STRING;
         }
     }