Upgrade to E2 API with disconnect-all method
[portal/ric-dashboard.git] / webapp-backend / src / main / java / org / oransc / ric / portal / dashboard / controller / E2ManagerController.java
index fb1add8..a088af3 100644 (file)
@@ -25,28 +25,38 @@ import java.util.Set;
 
 import javax.servlet.http.HttpServletResponse;
 
-import org.oransc.ric.e2mgr.client.api.E2ManagerApi;
+import org.oransc.ric.e2mgr.client.api.HealthCheckApi;
+import org.oransc.ric.e2mgr.client.api.NodebApi;
+import org.oransc.ric.e2mgr.client.model.GetNodebResponse;
 import org.oransc.ric.e2mgr.client.model.SetupRequest;
+import org.oransc.ric.portal.dashboard.DashboardApplication;
 import org.oransc.ric.portal.dashboard.DashboardConstants;
+import org.oransc.ric.portal.dashboard.model.E2SetupRequestType;
+import org.oransc.ric.portal.dashboard.model.E2SetupResponse;
+import org.oransc.ric.portal.dashboard.model.SuccessTransport;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.context.annotation.Configuration;
 import org.springframework.http.MediaType;
+import org.springframework.http.ResponseEntity;
 import org.springframework.util.Assert;
+import org.springframework.web.bind.annotation.PathVariable;
 import org.springframework.web.bind.annotation.RequestBody;
 import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.RequestMethod;
 import org.springframework.web.bind.annotation.RestController;
+import org.springframework.web.client.HttpStatusCodeException;
 
 import io.swagger.annotations.ApiOperation;
 
 /**
- * Provides methods to contact the E2 Manager.
+ * Proxies calls from the front end to the E2 Manager API. All methods answer
+ * 502 on failure: <blockquote>HTTP server received an invalid response from a
+ * server it consulted when acting as a proxy or gateway.</blockquote>
  * 
- * As of this writing the E2 interface only supports setup connection and check
- * health actions; it does not support query or close operations on existing
- * connections. So this class mocks up some of that needed functionality.
+ * As of this writing the E2 interface does not support get-all, so this class
+ * mocks up some of that functionality.
  */
 @Configuration
 @RestController
@@ -55,17 +65,23 @@ public class E2ManagerController {
 
        private static final Logger logger = LoggerFactory.getLogger(MethodHandles.lookup().lookupClass());
 
+       // Path parameters
+       private static final String PP_RANNAME = "ranName";
+
        // Populated by the autowired constructor
-       private final E2ManagerApi e2ManagerApi;
+       private final HealthCheckApi e2HealthCheckApi;
+       private final NodebApi e2NodebApi;
 
-       // Tracks the requests previously submitted.
+       // Stores the requests and results.
        // TODO remove when the E2 manager is extended.
-       private Set<SetupRequest> requests = new HashSet<>();
+       private Set<E2SetupResponse> responses = new HashSet<>();
 
        @Autowired
-       public E2ManagerController(final E2ManagerApi e2ManagerApi) {
-               Assert.notNull(e2ManagerApi, "API must not be null");
-               this.e2ManagerApi = e2ManagerApi;
+       public E2ManagerController(final HealthCheckApi e2HealthCheckApi, final NodebApi e2NodebApi) {
+               Assert.notNull(e2HealthCheckApi, "API must not be null");
+               Assert.notNull(e2NodebApi, "API must not be null");
+               this.e2HealthCheckApi = e2HealthCheckApi;
+               this.e2NodebApi = e2NodebApi;
        }
 
        private void assertNotNull(Object o) {
@@ -79,39 +95,98 @@ public class E2ManagerController {
                        throw new IllegalArgumentException("Empty not permitted");
        }
 
+       @ApiOperation(value = "Gets the E2 manager client library MANIFEST.MF property Implementation-Version.", response = SuccessTransport.class)
+       @RequestMapping(value = DashboardConstants.VERSION_PATH, method = RequestMethod.GET)
+       public SuccessTransport getE2ManagerClientVersion() {
+               return new SuccessTransport(200, DashboardApplication.getImplementationVersion(HealthCheckApi.class));
+       }
+
        @ApiOperation(value = "Gets the health from the E2 manager, expressed as the response code.")
        @RequestMapping(value = "/health", method = RequestMethod.GET)
-       public void getHealth(HttpServletResponse response) {
-               logger.debug("getHealth");
-               e2ManagerApi.healthCheck();
-               response.setStatus(e2ManagerApi.getApiClient().getStatusCode().value());
+       public Object healthGet(HttpServletResponse response) {
+               logger.debug("healthGet");
+               try {
+                       e2HealthCheckApi.healthGet();
+                       response.setStatus(e2HealthCheckApi.getApiClient().getStatusCode().value());
+                       return null;
+               } catch (HttpStatusCodeException ex) {
+                       logger.warn("healthGet failed: {}", ex.toString());
+                       return ResponseEntity.status(HttpServletResponse.SC_BAD_GATEWAY).body(ex.getResponseBodyAsString());
+               }
        }
 
-       @ApiOperation(value = "Gets the unique requests submitted to the E2 manager.", response = SetupRequest.class, responseContainer = "List")
+       // TODO replace with actual functionality
+       @ApiOperation(value = "Gets the unique requests submitted to the E2 manager.", response = E2SetupResponse.class, responseContainer = "List")
        @RequestMapping(value = "/setup", method = RequestMethod.GET)
-       public Iterable<SetupRequest> getRequests() {
+       public Iterable<E2SetupResponse> getRequests() {
                logger.debug("getRequests");
-               return requests;
+               return responses;
+       }
+
+       @ApiOperation(value = "Get RAN by name.", response = GetNodebResponse.class)
+       @RequestMapping(value = "/nodeb/{" + PP_RANNAME + "}", method = RequestMethod.GET)
+       public Object getNb(@PathVariable(PP_RANNAME) String ranName) {
+               logger.debug("getNb {}", ranName);
+               try {
+                       return e2NodebApi.getNb(ranName);
+               } catch (HttpStatusCodeException ex) {
+                       logger.warn("getNb failed: {}", ex.toString());
+                       return ResponseEntity.status(HttpServletResponse.SC_BAD_GATEWAY).body(ex.getResponseBodyAsString());
+               }
+       }
+
+       @ApiOperation(value = "Close all connections to the RANs and delete the data from the nodeb-rnib DB.")
+       @RequestMapping(value = "/nodeb", method = RequestMethod.DELETE)
+       public void nodebDelete() {
+               logger.debug("nodebDelete");
+               e2NodebApi.nodebDelete();
+               // TODO: remove this mock functionality
+               responses.clear();
        }
 
-       @ApiOperation(value = "Sets up a RAN connection via the E2 manager.")
-       @RequestMapping(value = "/setup", method = RequestMethod.POST)
-       public void setup(@RequestBody SetupRequest setupRequest, HttpServletResponse response) {
-               logger.debug("setup {}", setupRequest);
+       @ApiOperation(value = "Sets up an EN-DC RAN connection via the E2 manager.", response = E2SetupResponse.class)
+       @RequestMapping(value = "/endcSetup", method = RequestMethod.POST)
+       public Object endcSetup(@RequestBody SetupRequest setupRequest) {
+               logger.debug("endcSetup {}", setupRequest);
                try {
                        assertNotEmpty(setupRequest.getRanIp());
                        assertNotEmpty(setupRequest.getRanName());
                        assertNotNull(setupRequest.getRanPort());
                } catch (Exception ex) {
-                       logger.error("Bad request", ex);
-                       response.setStatus(HttpServletResponse.SC_BAD_REQUEST);
+                       return new E2SetupResponse(E2SetupRequestType.ENDC, setupRequest, HttpServletResponse.SC_BAD_REQUEST);
+               }
+               try {
+                       e2NodebApi.endcSetup(setupRequest);
+                       E2SetupResponse r = new E2SetupResponse(E2SetupRequestType.ENDC, setupRequest,
+                                       e2NodebApi.getApiClient().getStatusCode().value());
+                       responses.add(r);
+                       return r;
+               } catch (HttpStatusCodeException ex) {
+                       logger.warn("endcSetup failed: {}", ex.toString());
+                       return ResponseEntity.status(HttpServletResponse.SC_BAD_GATEWAY).body(ex.getResponseBodyAsString());
                }
+       }
+
+       @ApiOperation(value = "Sets up an X2 RAN connection via the E2 manager.", response = E2SetupResponse.class)
+       @RequestMapping(value = "/x2Setup", method = RequestMethod.POST)
+       public Object x2Setup(@RequestBody SetupRequest setupRequest) {
+               logger.debug("x2Setup {}", setupRequest);
                try {
-                       requests.add(setupRequest);
-                       e2ManagerApi.setup(setupRequest);
+                       assertNotEmpty(setupRequest.getRanIp());
+                       assertNotEmpty(setupRequest.getRanName());
+                       assertNotNull(setupRequest.getRanPort());
                } catch (Exception ex) {
-                       logger.error("Failed", ex);
-                       response.setStatus(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
+                       return new E2SetupResponse(E2SetupRequestType.ENDC, setupRequest, HttpServletResponse.SC_BAD_REQUEST);
+               }
+               try {
+                       e2NodebApi.x2Setup(setupRequest);
+                       E2SetupResponse r = new E2SetupResponse(E2SetupRequestType.X2, setupRequest,
+                                       e2NodebApi.getApiClient().getStatusCode().value());
+                       responses.add(r);
+                       return r;
+               } catch (HttpStatusCodeException ex) {
+                       logger.warn("x2Setup failed: {}", ex.toString());
+                       return ResponseEntity.status(HttpServletResponse.SC_BAD_GATEWAY).body(ex.getResponseBodyAsString());
                }
        }