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=f794ab50750b350f7576b9d40ea84b817affac88;hb=ab34581c4c82c50e6bb00957aa717221897cea7a;hp=ebe833b990eede90463ac074b791e0481811bc4a;hpb=41cbc8cef42c7b1d4ee78c8789f14bffd7d829dd;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 ebe833b9..f794ab50 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 @@ -17,50 +17,264 @@ * limitations under the License. * ========================LICENSE_END=================================== */ + package org.oransc.policyagent.controllers; +import com.google.gson.Gson; +import com.google.gson.GsonBuilder; + +import io.swagger.annotations.Api; import io.swagger.annotations.ApiOperation; import io.swagger.annotations.ApiResponse; import io.swagger.annotations.ApiResponses; -import java.net.http.HttpHeaders; +import java.util.Collection; +import java.util.Vector; +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.Policies; +import org.oransc.policyagent.repository.Policy; +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.springframework.beans.factory.annotation.Autowired; import org.springframework.http.HttpStatus; import org.springframework.http.ResponseEntity; +import org.springframework.web.bind.annotation.DeleteMapping; import org.springframework.web.bind.annotation.GetMapping; -import org.springframework.web.bind.annotation.RequestHeader; +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 reactor.core.publisher.Mono; @RestController +@Api(value = "Policy Management API") public class PolicyController { - // http://localhost:8080/policy?type=type3&instance=xxx - @GetMapping("/policy") - public String getPolicy(@RequestParam(name = "type", required = false, defaultValue = "type1") String typeName, - @RequestParam(name = "instance", required = false, defaultValue = "new") String instanceId) { - System.out.println("**** getPolicy " + typeName); + private final Rics rics; + private final PolicyTypes policyTypes; + private final Policies policies; + private final A1ClientFactory a1ClientFactory; + + 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(value = {@ApiResponse(code = 200, message = "Policy Types found")}) + public ResponseEntity getPolicySchemas(@RequestParam(name = "ric", required = false) String ricName) { + synchronized (this.policyTypes) { + if (ricName == null) { + Collection types = this.policyTypes.getAll(); + return new ResponseEntity(toPolicyTypeSchemasJson(types), HttpStatus.OK); + } else { + try { + Collection types = rics.getRic(ricName).getSupportedPolicyTypes(); + return new ResponseEntity(toPolicyTypeSchemasJson(types), HttpStatus.OK); + } catch (ServiceException e) { + return new ResponseEntity(e.toString(), HttpStatus.NOT_FOUND); + } + } + } + } - return "policy" + typeName + instanceId; + @GetMapping("/policy_schema") + @ApiOperation(value = "Returns one policy type schema definition") + @ApiResponses(value = {@ApiResponse(code = 200, message = "Policy Type found")}) + public ResponseEntity getPolicySchema(@RequestParam(name = "id", required = true) String id) { + try { + PolicyType type = policyTypes.getType(id); + return new ResponseEntity(type.schema(), HttpStatus.OK); + } catch (ServiceException e) { + return new ResponseEntity(e.toString(), HttpStatus.NOT_FOUND); + } } - public String getHello() { - return "Howdy"; + @GetMapping("/policy_types") + @ApiOperation(value = "Returns policy types") + @ApiResponses(value = {@ApiResponse(code = 200, message = "Policy Types found")}) + public ResponseEntity getPolicyTypes(@RequestParam(name = "ric", required = false) String ricName) { + synchronized (this.policyTypes) { + if (ricName == null) { + Collection types = this.policyTypes.getAll(); + return new ResponseEntity(toPolicyTypeIdsJson(types), HttpStatus.OK); + } else { + try { + Collection types = rics.getRic(ricName).getSupportedPolicyTypes(); + return new ResponseEntity(toPolicyTypeIdsJson(types), HttpStatus.OK); + } catch (ServiceException e) { + return new ResponseEntity(e.toString(), HttpStatus.NOT_FOUND); + } + } + } } - @GetMapping("/status") - @ApiOperation(value = "Returns status and statistics of DATAFILE service") + @GetMapping("/policy") + @ApiOperation(value = "Returns the policy") @ApiResponses( - value = { // - @ApiResponse(code = 200, message = "DATAFILE service is living"), - @ApiResponse(code = 401, message = "You are not authorized to view the resource"), - @ApiResponse(code = 403, message = "Accessing the resource you were trying to reach is forbidden"), - @ApiResponse(code = 404, message = "The resource you were trying to reach is not found") // - }) - public Mono> getStatus(@RequestHeader HttpHeaders headers) { - Mono> response = Mono.just(new ResponseEntity<>("hunky dory", HttpStatus.OK)); - return response; + value = {@ApiResponse(code = 200, message = "Policy found"), + @ApiResponse(code = 204, message = "Policy is not found")}) + public ResponseEntity getPolicy( // + @RequestParam(name = "instance", required = true) String instance) { + try { + Policy p = policies.getPolicy(instance); + return new ResponseEntity(p.json(), HttpStatus.OK); + } catch (ServiceException e) { + return new ResponseEntity(e.getMessage(), HttpStatus.NO_CONTENT); + } + } + + @DeleteMapping("/policy") + @ApiOperation(value = "Deletes the policy") + @ApiResponses(value = {@ApiResponse(code = 204, message = "Policy deleted")}) + public Mono> deletePolicy( // + @RequestParam(name = "instance", required = true) String id) { + Policy policy = policies.get(id); + if (policy != null && policy.ric().state().equals(Ric.RicState.IDLE)) { + policies.remove(policy); + return a1ClientFactory.createA1Client(policy.ric()) // + .flatMap(client -> client.deletePolicy(policy)) // + .flatMap(notUsed -> { + return Mono.just(new ResponseEntity<>(HttpStatus.NO_CONTENT)); + }); + } else { + return Mono.just(new ResponseEntity<>(HttpStatus.NOT_FOUND)); + } + } + + @PutMapping(path = "/policy") + @ApiOperation(value = "Create the policy") + @ApiResponses(value = {@ApiResponse(code = 201, message = "Policy created")}) + public Mono> putPolicy( // + @RequestParam(name = "type", required = true) String typeName, // + @RequestParam(name = "instance", required = true) String instanceId, // + @RequestParam(name = "ric", required = true) String ricName, // + @RequestParam(name = "service", required = true) String service, // + @RequestBody String jsonBody) { + + Ric ric = rics.get(ricName); + PolicyType type = policyTypes.get(typeName); + if (ric != null && type != null && ric.state().equals(Ric.RicState.IDLE)) { + Policy policy = ImmutablePolicy.builder() // + .id(instanceId) // + .json(jsonBody) // + .type(type) // + .ric(ric) // + .ownerServiceName(service) // + .lastModified(getTimeStampUTC()) // + .build(); + return a1ClientFactory.createA1Client(ric) // + .flatMap(client -> client.putPolicy(policy)) // + .doOnNext(notUsed -> policies.put(policy)) // + .flatMap(notUsed -> { + return Mono.just(new ResponseEntity<>(HttpStatus.CREATED)); + }); + } + return Mono.just(new ResponseEntity<>(HttpStatus.NOT_FOUND)); + } + + @GetMapping("/policies") + @ApiOperation(value = "Returns the policies") + @ApiResponses(value = {@ApiResponse(code = 200, message = "Policies found")}) + public ResponseEntity getPolicies( // + @RequestParam(name = "type", required = false) String type, // + @RequestParam(name = "ric", required = false) String ric, // + @RequestParam(name = "service", required = false) String service) // + { + 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 = policies.getForRic(ric); + result = filter(result, type, null, service); + } else { + result = policies.getAll(); + } + + return new ResponseEntity(policiesToJson(result), HttpStatus.OK); + } + } + + private boolean include(String filter, String value) { + return filter == null || value.equals(filter); + } + + private Collection filter(Collection collection, String type, String ric, String service) { + if (type == null && ric == null && service == null) { + return collection; + } + Vector filtered = new Vector<>(); + for (Policy p : collection) { + if (include(type, p.type().name()) && include(ric, p.ric().name()) + && include(service, p.ownerServiceName())) { + filtered.add(p); + } + } + return filtered; + } + + private String policiesToJson(Collection policies) { + Vector v = new Vector<>(policies.size()); + for (Policy p : policies) { + PolicyInfo policyInfo = ImmutablePolicyInfo.builder() // + .json(p.json()) // + .id(p.id()) // + .ric(p.ric().name()) // + .type(p.type().name()) // + .service(p.ownerServiceName()) // + .lastModified(p.lastModified()) // + .build(); + v.add(policyInfo); + } + return gson.toJson(v); + } + + private String toPolicyTypeSchemasJson(Collection types) { + StringBuilder result = new StringBuilder(); + result.append("["); + boolean first = true; + for (PolicyType t : types) { + if (!first) { + result.append(","); + } + first = false; + result.append(t.schema()); + } + result.append("]"); + return result.toString(); + } + + private String toPolicyTypeIdsJson(Collection types) { + Vector v = new Vector<>(types.size()); + for (PolicyType t : types) { + v.add(t.name()); + } + return gson.toJson(v); + } + + private String getTimeStampUTC() { + return java.time.Instant.now().toString(); } }