X-Git-Url: https://gerrit.o-ran-sc.org/r/gitweb?a=blobdiff_plain;f=policy-agent%2Fsrc%2Fmain%2Fjava%2Forg%2Foransc%2Fpolicyagent%2Fcontrollers%2FPolicyController.java;h=0f3b391f2a372777d87e47951a4eb5528a51b649;hb=96805287db06a91e569c184cc34ba4e69e4d22b2;hp=1af607f46c9101c962e4d40068792a0d627224d0;hpb=889b38fd05bc9143647827742e3a8e0f10783bc8;p=nonrtric.git diff --git a/policy-agent/src/main/java/org/oransc/policyagent/controllers/PolicyController.java b/policy-agent/src/main/java/org/oransc/policyagent/controllers/PolicyController.java index 1af607f4..0f3b391f 100644 --- a/policy-agent/src/main/java/org/oransc/policyagent/controllers/PolicyController.java +++ b/policy-agent/src/main/java/org/oransc/policyagent/controllers/PolicyController.java @@ -32,8 +32,9 @@ import java.util.ArrayList; import java.util.Collection; import java.util.List; +import lombok.Getter; + import org.oransc.policyagent.clients.A1ClientFactory; -import org.oransc.policyagent.configuration.ApplicationConfig; import org.oransc.policyagent.exceptions.ServiceException; import org.oransc.policyagent.repository.ImmutablePolicy; import org.oransc.policyagent.repository.Lock.LockType; @@ -43,6 +44,8 @@ import org.oransc.policyagent.repository.PolicyType; import org.oransc.policyagent.repository.PolicyTypes; import org.oransc.policyagent.repository.Ric; import org.oransc.policyagent.repository.Rics; +import org.oransc.policyagent.repository.Service; +import org.oransc.policyagent.repository.Services; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.http.HttpStatus; import org.springframework.http.ResponseEntity; @@ -52,30 +55,39 @@ import org.springframework.web.bind.annotation.PutMapping; import org.springframework.web.bind.annotation.RequestBody; import org.springframework.web.bind.annotation.RequestParam; import org.springframework.web.bind.annotation.RestController; +import org.springframework.web.reactive.function.client.WebClientResponseException; import reactor.core.publisher.Mono; @RestController @Api(tags = "A1 Policy Management") public class PolicyController { - private final Rics rics; - private final PolicyTypes policyTypes; - private final Policies policies; - private final A1ClientFactory a1ClientFactory; + public static class RejectionException extends Exception { + private static final long serialVersionUID = 1L; + @Getter + private final HttpStatus status; + + public RejectionException(String message, HttpStatus status) { + super(message); + this.status = status; + } + } + + @Autowired + private Rics rics; + @Autowired + private PolicyTypes policyTypes; + @Autowired + private Policies policies; + @Autowired + private A1ClientFactory a1ClientFactory; + @Autowired + private Services services; private static Gson gson = new GsonBuilder() // .serializeNulls() // .create(); // - @Autowired - PolicyController(ApplicationConfig config, PolicyTypes types, Policies policies, Rics rics, - A1ClientFactory a1ClientFactory) { - this.policyTypes = types; - this.policies = policies; - this.rics = rics; - this.a1ClientFactory = a1ClientFactory; - } - @GetMapping("/policy_schemas") @ApiOperation(value = "Returns policy type schema definitions") @ApiResponses( @@ -165,8 +177,13 @@ public class PolicyController { @ApiResponse(code = 423, message = "RIC is locked", response = String.class)}) public Mono> deletePolicy( // @RequestParam(name = "instance", required = true) String id) { - Policy policy = policies.get(id); - if (policy != null && policy.ric().getState() == Ric.RicState.IDLE) { + Policy policy; + try { + policy = policies.getPolicy(id); + keepServiceAlive(policy.ownerServiceName()); + if (policy.ric().getState() != Ric.RicState.IDLE) { + return Mono.just(new ResponseEntity<>("Busy, synchronizing", HttpStatus.LOCKED)); + } Ric ric = policy.ric(); return ric.getLock().lock(LockType.SHARED) // // .flatMap(lock -> a1ClientFactory.createA1Client(policy.ric())) // @@ -174,10 +191,9 @@ public class PolicyController { .flatMap(client -> client.deletePolicy(policy)) // .doOnNext(notUsed -> ric.getLock().unlockBlocking()) // .doOnError(notUsed -> ric.getLock().unlockBlocking()) // - .flatMap(notUsed -> Mono.just(new ResponseEntity<>(HttpStatus.NO_CONTENT))); - } else if (policy != null) { - return Mono.just(new ResponseEntity<>("Busy, recovering", HttpStatus.LOCKED)); - } else { + .flatMap(notUsed -> Mono.just(new ResponseEntity<>(HttpStatus.NO_CONTENT))) + .onErrorResume(this::handleException); + } catch (ServiceException e) { return Mono.just(new ResponseEntity<>(HttpStatus.NOT_FOUND)); } } @@ -186,13 +202,13 @@ public class PolicyController { @ApiOperation(value = "Put a policy", response = String.class) @ApiResponses( value = { // - @ApiResponse(code = 201, message = "Policy created"), // - @ApiResponse(code = 200, message = "Policy updated"), // + @ApiResponse(code = 201, message = "Policy created", response = Object.class), // + @ApiResponse(code = 200, message = "Policy updated", response = Object.class), // @ApiResponse(code = 423, message = "RIC is locked", response = String.class), // - @ApiResponse(code = 404, message = "RIC or policy type is not found", response = String.class), // - @ApiResponse(code = 405, message = "Change is not allowed", response = String.class)}) + @ApiResponse(code = 404, message = "RIC or policy type is not found", response = String.class) // + }) public Mono> putPolicy( // - @RequestParam(name = "type", required = true) String typeName, // + @RequestParam(name = "type", required = false, defaultValue = "") String typeName, // @RequestParam(name = "instance", required = true) String instanceId, // @RequestParam(name = "ric", required = true) String ricName, // @RequestParam(name = "service", required = true) String service, // @@ -201,6 +217,7 @@ public class PolicyController { String jsonString = gson.toJson(jsonBody); Ric ric = rics.get(ricName); PolicyType type = policyTypes.get(typeName); + keepServiceAlive(service); if (ric != null && type != null && ric.getState() == Ric.RicState.IDLE) { Policy policy = ImmutablePolicy.builder() // .id(instanceId) // @@ -221,20 +238,39 @@ public class PolicyController { .doOnNext(notUsed -> ric.getLock().unlockBlocking()) // .doOnError(t -> ric.getLock().unlockBlocking()) // .flatMap(notUsed -> Mono.just(new ResponseEntity<>(isCreate ? HttpStatus.CREATED : HttpStatus.OK))) // - .onErrorResume(t -> Mono.just(new ResponseEntity<>(t.getMessage(), HttpStatus.METHOD_NOT_ALLOWED))); + .onErrorResume(this::handleException); } return ric == null || type == null ? Mono.just(new ResponseEntity<>(HttpStatus.NOT_FOUND)) - : Mono.just(new ResponseEntity<>(HttpStatus.LOCKED)); // Recovering + : Mono.just(new ResponseEntity<>(HttpStatus.LOCKED)); // Synchronizing + } + + @SuppressWarnings({"unchecked"}) + private Mono> createResponseEntity(String message, HttpStatus status) { + ResponseEntity re = new ResponseEntity<>((T) message, status); + return Mono.just(re); + } + + private Mono> handleException(Throwable throwable) { + if (throwable instanceof WebClientResponseException) { + WebClientResponseException e = (WebClientResponseException) throwable; + return createResponseEntity(e.getResponseBodyAsString(), e.getStatusCode()); + } else if (throwable instanceof RejectionException) { + RejectionException e = (RejectionException) throwable; + return createResponseEntity(e.getMessage(), e.getStatus()); + } else { + return createResponseEntity(throwable.getMessage(), HttpStatus.INTERNAL_SERVER_ERROR); + } } private Mono validateModifiedPolicy(Policy policy) { // Check that ric is not updated Policy current = this.policies.get(policy.id()); if (current != null && !current.ric().name().equals(policy.ric().name())) { - return Mono.error(new Exception("Policy cannot change RIC, policyId: " + current.id() + // + RejectionException e = new RejectionException("Policy cannot change RIC, policyId: " + current.id() + // ", RIC name: " + current.ric().name() + // - ", new name: " + policy.ric().name())); + ", new name: " + policy.ric().name(), HttpStatus.CONFLICT); + return Mono.error(e); } return Mono.just("OK"); } @@ -257,27 +293,30 @@ public class PolicyController { return new ResponseEntity<>("RIC not found", HttpStatus.NOT_FOUND); } synchronized (policies) { - Collection result = null; - - if (type != null) { - result = policies.getForType(type); - result = filter(result, null, ric, service); - } else if (service != null) { - result = policies.getForService(service); - result = filter(result, type, ric, null); - } else if (ric != null) { - result = filter(policies.getForRic(ric), type, null, service); - } else { - result = policies.getAll(); - } + String filteredPolicies = policiesToJson(filter(type, ric, service)); + return new ResponseEntity<>(filteredPolicies, HttpStatus.OK); + } + } - String policiesJson; - try { - policiesJson = policiesToJson(result); - } catch (ServiceException e) { - return new ResponseEntity<>(e.getMessage(), HttpStatus.INTERNAL_SERVER_ERROR); - } - return new ResponseEntity<>(policiesJson, HttpStatus.OK); + @GetMapping("/policy_ids") + @ApiOperation(value = "Query policies, only IDs returned") + @ApiResponses( + value = {@ApiResponse(code = 200, message = "Policy ids", response = String.class, responseContainer = "List"), + @ApiResponse(code = 404, message = "RIC or type not found", response = String.class)}) + public ResponseEntity getPolicyIds( // + @RequestParam(name = "type", required = false) String type, // + @RequestParam(name = "ric", required = false) String ric, // + @RequestParam(name = "service", required = false) String service) // + { + if ((type != null && this.policyTypes.get(type) == null)) { + return new ResponseEntity<>("Policy type not found", HttpStatus.NOT_FOUND); + } + if ((ric != null && this.rics.get(ric) == null)) { + return new ResponseEntity<>("RIC not found", HttpStatus.NOT_FOUND); + } + synchronized (policies) { + String policyIdsJson = toPolicyIdsJson(filter(type, ric, service)); + return new ResponseEntity<>(policyIdsJson, HttpStatus.OK); } } @@ -295,12 +334,20 @@ public class PolicyController { return a1ClientFactory.createA1Client(policy.ric()) // .flatMap(client -> client.getPolicyStatus(policy)) // - .flatMap(status -> Mono.just(new ResponseEntity<>(status, HttpStatus.OK))); + .flatMap(status -> Mono.just(new ResponseEntity<>(status, HttpStatus.OK))) + .onErrorResume(this::handleException); } catch (ServiceException e) { return Mono.just(new ResponseEntity<>(e.getMessage(), HttpStatus.NOT_FOUND)); } } + private void keepServiceAlive(String name) { + Service s = this.services.get(name); + if (s != null) { + s.keepAlive(); + } + } + private boolean include(String filter, String value) { return filter == null || value.equals(filter); } @@ -319,7 +366,21 @@ public class PolicyController { return filtered; } - private String policiesToJson(Collection policies) throws ServiceException { + private Collection filter(String type, String ric, String service) { + synchronized (policies) { + if (type != null) { + return filter(policies.getForType(type), null, ric, service); + } else if (service != null) { + return filter(policies.getForService(service), type, ric, null); + } else if (ric != null) { + return filter(policies.getForRic(ric), type, null, service); + } else { + return policies.getAll(); + } + } + } + + private String policiesToJson(Collection policies) { List v = new ArrayList<>(policies.size()); for (Policy p : policies) { PolicyInfo policyInfo = new PolicyInfo(); @@ -330,7 +391,7 @@ public class PolicyController { policyInfo.service = p.ownerServiceName(); policyInfo.lastModified = p.lastModified(); if (!policyInfo.validate()) { - throw new ServiceException("BUG, all fields must be set"); + throw new NullPointerException("BUG, all fields must be set"); } v.add(policyInfo); } @@ -364,6 +425,14 @@ public class PolicyController { return gson.toJson(v); } + private String toPolicyIdsJson(Collection policies) { + List v = new ArrayList<>(policies.size()); + for (Policy p : policies) { + v.add(p.id()); + } + return gson.toJson(v); + } + private String getTimeStampUtc() { return java.time.Instant.now().toString(); }