Upgrade E2Mgr spec to version 2.0.5 of 2019-09-11
[portal/ric-dashboard.git] / webapp-backend / src / main / java / org / oransc / ric / portal / dashboard / controller / E2ManagerController.java
index f4888fc..104cb1d 100644 (file)
 package org.oransc.ric.portal.dashboard.controller;
 
 import java.lang.invoke.MethodHandles;
-import java.util.HashSet;
-import java.util.Set;
+import java.util.ArrayList;
+import java.util.List;
 
 import javax.servlet.http.HttpServletResponse;
 
 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.NodebIdentity;
+import org.oransc.ric.e2mgr.client.model.ResetRequest;
 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.IDashboardResponse;
+import org.oransc.ric.portal.dashboard.model.RanDetailsTransport;
 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.security.access.annotation.Secured;
 import org.springframework.util.Assert;
+import org.springframework.web.bind.annotation.GetMapping;
 import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.PutMapping;
 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.
  * 
- * As of this writing the E2 interface only supports setup connection and check
- * health actions, and query by RAN name. But it does not support get-all, oo
- * this class mocks up some of that functionality.
+ * If a method throws RestClientResponseException, it is handled by
+ * {@link CustomResponseEntityExceptionHandler#handleProxyMethodException(Exception, org.springframework.web.context.request.WebRequest)}
+ * which returns status 502. All other exceptions are handled by Spring which
+ * returns status 500.
  */
 @Configuration
 @RestController
-@RequestMapping(value = DashboardConstants.ENDPOINT_PREFIX + "/e2mgr", produces = MediaType.APPLICATION_JSON_VALUE)
+@RequestMapping(value = E2ManagerController.CONTROLLER_PATH, produces = MediaType.APPLICATION_JSON_VALUE)
 public class E2ManagerController {
 
        private static final Logger logger = LoggerFactory.getLogger(MethodHandles.lookup().lookupClass());
 
+       // Publish paths in constants so tests are easy to write
+       public static final String CONTROLLER_PATH = DashboardConstants.ENDPOINT_PREFIX + "/e2mgr";
+       // Dashboard only
+       public static final String HEALTH_METHOD = "health";
+       public static final String RAN_METHOD = "/ran";
+       public static final String VERSION_METHOD = DashboardConstants.VERSION_METHOD;
+       // Keep these consistent with the E2M implementation
+       public static final String NODEB_PREFIX = "/nodeb";
+       public static final String NODEB_SHUTDOWN_METHOD = NODEB_PREFIX + "/shutdown";
+       public static final String NODEB_LIST_METHOD = NODEB_PREFIX + "/ids";
+       public static final String RESET_METHOD = "/reset";
+       public static final String ENDC_SETUP_METHOD = NODEB_PREFIX + "/endc-setup";
+       public static final String X2_SETUP_METHOD = NODEB_PREFIX + "/x2-setup";
        // Path parameters
        private static final String PP_RANNAME = "ranName";
 
@@ -70,10 +88,6 @@ public class E2ManagerController {
        private final HealthCheckApi e2HealthCheckApi;
        private final NodebApi e2NodebApi;
 
-       // Stores the requests and results.
-       // TODO remove when the E2 manager is extended.
-       private Set<E2SetupResponse> responses = new HashSet<>();
-
        @Autowired
        public E2ManagerController(final HealthCheckApi e2HealthCheckApi, final NodebApi e2NodebApi) {
                Assert.notNull(e2HealthCheckApi, "API must not be null");
@@ -82,92 +96,96 @@ public class E2ManagerController {
                this.e2NodebApi = e2NodebApi;
        }
 
-       private void assertNotNull(Object o) {
-               if (o == null)
-                       throw new IllegalArgumentException("Null not permitted");
-       }
-
-       private void assertNotEmpty(String s) {
-               assertNotNull(s);
-               if (s.isEmpty())
-                       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() {
+       @GetMapping(VERSION_METHOD)
+       // No role required
+       public SuccessTransport getClientVersion() {
                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 getE2ManagerHealth(HttpServletResponse response) {
+       @GetMapping(HEALTH_METHOD)
+       // No role required
+       public void healthGet(HttpServletResponse response) {
+               logger.debug("healthGet");
                e2HealthCheckApi.healthGet();
                response.setStatus(e2HealthCheckApi.getApiClient().getStatusCode().value());
        }
 
-       @ApiOperation(value = "Gets the unique requests submitted to the E2 manager.", response = E2SetupResponse.class, responseContainer = "List")
-       @RequestMapping(value = "/setup", method = RequestMethod.GET)
-       public Iterable<E2SetupResponse> getRequests() {
-               logger.debug("getRequests");
-               return responses;
+       // This calls other methods to simplify the task of the front-end.
+       @ApiOperation(value = "Gets all RAN identities and statuses from the E2 manager.", response = RanDetailsTransport.class, responseContainer = "List")
+       @GetMapping(RAN_METHOD)
+       @Secured({ DashboardConstants.ROLE_ADMIN, DashboardConstants.ROLE_STANDARD })
+       public List<RanDetailsTransport> getRanDetails() {
+               logger.debug("getRanDetails");
+               List<NodebIdentity> nodebIdList = e2NodebApi.getNodebIdList();
+               List<RanDetailsTransport> details = new ArrayList<>();
+               for (NodebIdentity nbid : nodebIdList) {
+                       GetNodebResponse nbResp = null;
+                       try {
+                               // Catch exceptions to keep looping despite failures
+                               nbResp = e2NodebApi.getNb(nbid.getInventoryName());
+                       } catch (HttpStatusCodeException ex) {
+                               logger.warn("E2 getNb failed for name {}: {}", nbid.getInventoryName(), ex.toString());
+                               nbResp = new GetNodebResponse().connectionStatus("UNKNOWN").ip("UNKNOWN").port(-1)
+                                               .ranName(nbid.getInventoryName());
+                       }
+                       details.add(new RanDetailsTransport(nbid, nbResp));
+               }
+               return details;
+       }
+
+       @ApiOperation(value = "Get RAN identities list.", response = NodebIdentity.class, responseContainer = "List")
+       @GetMapping(NODEB_LIST_METHOD)
+       @Secured({ DashboardConstants.ROLE_ADMIN, DashboardConstants.ROLE_STANDARD })
+       public List<NodebIdentity> getNodebIdList() {
+               logger.debug("getNodebIdList");
+               return e2NodebApi.getNodebIdList();
        }
 
        @ApiOperation(value = "Get RAN by name.", response = GetNodebResponse.class)
-       @RequestMapping(value = "/nodeb/{" + PP_RANNAME + "}", method = RequestMethod.GET)
+       @GetMapping(NODEB_SHUTDOWN_METHOD + "/{" + PP_RANNAME + "}")
+       @Secured({ DashboardConstants.ROLE_ADMIN, DashboardConstants.ROLE_STANDARD })
        public GetNodebResponse getNb(@PathVariable(PP_RANNAME) String ranName) {
                logger.debug("getNb {}", ranName);
                return e2NodebApi.getNb(ranName);
        }
 
-       // TODO replace with actual delete all RAN connections functionality
-       @ApiOperation(value = "Disconnect all RAN Connections.")
-       @RequestMapping(value = "/disconnectAllRAN", method = RequestMethod.DELETE)
-       public void disconnectAllRANConnections() {
-               logger.debug("disconnectAllRANConnections");
-               responses.clear();
-       }
-
-       @ApiOperation(value = "Sets up an EN-DC RAN connection via the E2 manager.", response = E2SetupResponse.class)
-       @RequestMapping(value = "/endcSetup", method = RequestMethod.POST)
-       public E2SetupResponse endcSetup(@RequestBody SetupRequest setupRequest, HttpServletResponse response) {
+       @ApiOperation(value = "Sets up an EN-DC RAN connection via the E2 manager.")
+       @PostMapping(ENDC_SETUP_METHOD)
+       @Secured({ DashboardConstants.ROLE_ADMIN })
+       public void endcSetup(@RequestBody SetupRequest setupRequest, HttpServletResponse response) {
                logger.debug("endcSetup {}", setupRequest);
-               int responseCode = -1;
-               try {
-                       assertNotEmpty(setupRequest.getRanIp());
-                       assertNotEmpty(setupRequest.getRanName());
-                       assertNotNull(setupRequest.getRanPort());
-                       e2NodebApi.endcSetup(setupRequest);
-                       responseCode = e2NodebApi.getApiClient().getStatusCode().value();
-               } catch (Exception ex) {
-                       logger.warn("endcSetup failed", ex);
-                       response.setStatus(HttpServletResponse.SC_BAD_REQUEST);
-                       responseCode = HttpServletResponse.SC_BAD_REQUEST;
-               }
-               E2SetupResponse r = new E2SetupResponse(E2SetupRequestType.ENDC, setupRequest, responseCode);
-               responses.add(r);
-               return r;
+               e2NodebApi.endcSetup(setupRequest);
+               response.setStatus(e2NodebApi.getApiClient().getStatusCode().value());
        }
 
-       @ApiOperation(value = "Sets up an X2 RAN connection via the E2 manager.", response = E2SetupResponse.class)
-       @RequestMapping(value = "/x2Setup", method = RequestMethod.POST)
-       public IDashboardResponse x2Setup(@RequestBody SetupRequest setupRequest, HttpServletResponse response) {
+       @ApiOperation(value = "Sets up an X2 RAN connection via the E2 manager.")
+       @PostMapping(X2_SETUP_METHOD)
+       @Secured({ DashboardConstants.ROLE_ADMIN })
+       public void x2Setup(@RequestBody SetupRequest setupRequest, HttpServletResponse response) {
                logger.debug("x2Setup {}", setupRequest);
-               int responseCode = -1;
-               try {
-                       assertNotEmpty(setupRequest.getRanIp());
-                       assertNotEmpty(setupRequest.getRanName());
-                       assertNotNull(setupRequest.getRanPort());
-                       e2NodebApi.x2Setup(setupRequest);
-                       responseCode = e2NodebApi.getApiClient().getStatusCode().value();
-               } catch (Exception ex) {
-                       logger.warn("x2Setup failed", ex);
-                       response.setStatus(HttpServletResponse.SC_BAD_REQUEST);
-                       responseCode = HttpServletResponse.SC_BAD_REQUEST;
-               }
-               E2SetupResponse r = new E2SetupResponse(E2SetupRequestType.X2, setupRequest, responseCode);
-               responses.add(r);
-               return r;
+               e2NodebApi.x2Setup(setupRequest);
+               response.setStatus(e2NodebApi.getApiClient().getStatusCode().value());
+       }
+
+       @ApiOperation(value = "Close all connections to the RANs and delete the data from the nodeb-rnib DB.")
+       @PutMapping(NODEB_SHUTDOWN_METHOD)
+       @Secured({ DashboardConstants.ROLE_ADMIN })
+       public void nodebShutdownPut(HttpServletResponse response) {
+               logger.debug("nodebShutdownPut");
+               e2NodebApi.nodebShutdownPut();
+               response.setStatus(e2NodebApi.getApiClient().getStatusCode().value());
+       }
+
+       @ApiOperation(value = "Abort any other ongoing procedures over X2 between the RIC and the RAN.")
+       @PutMapping(NODEB_PREFIX  + "/{" + PP_RANNAME + "}"+ RESET_METHOD)
+       @Secured({ DashboardConstants.ROLE_ADMIN })
+       public void reset(@PathVariable(PP_RANNAME) String ranName, @RequestBody ResetRequest resetRequest,
+                       HttpServletResponse response) {
+               logger.debug("reset");
+               e2NodebApi.reset(ranName, resetRequest);
+               response.setStatus(e2NodebApi.getApiClient().getStatusCode().value());
        }
 
 }