2 * ========================LICENSE_START=================================
4 * ======================================================================
5 * Copyright (C) 2019-2023 Nordix Foundation. All rights reserved.
6 * ======================================================================
7 * Licensed under the Apache License, Version 2.0 (the "License");
8 * you may not use this file except in compliance with the License.
9 * You may obtain a copy of the License at
11 * http://www.apache.org/licenses/LICENSE-2.0
13 * Unless required by applicable law or agreed to in writing, software
14 * distributed under the License is distributed on an "AS IS" BASIS,
15 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16 * See the License for the specific language governing permissions and
17 * limitations under the License.
18 * ========================LICENSE_END===================================
21 package org.onap.ccsdk.oran.a1policymanagementservice.controllers.v2;
23 import com.fasterxml.jackson.databind.ObjectMapper;
24 import com.google.gson.Gson;
25 import com.google.gson.GsonBuilder;
26 import io.swagger.v3.oas.annotations.tags.Tag;
27 import org.onap.ccsdk.oran.a1policymanagementservice.controllers.api.v2.ServiceRegistryAndSupervisionApi;
28 import org.onap.ccsdk.oran.a1policymanagementservice.exceptions.ServiceException;
29 import org.onap.ccsdk.oran.a1policymanagementservice.models.v2.ServiceRegistrationInfo;
30 import org.onap.ccsdk.oran.a1policymanagementservice.models.v2.ServiceStatus;
31 import org.onap.ccsdk.oran.a1policymanagementservice.models.v2.ServiceStatusList;
32 import org.onap.ccsdk.oran.a1policymanagementservice.repository.Policies;
33 import org.onap.ccsdk.oran.a1policymanagementservice.repository.Policy;
34 import org.onap.ccsdk.oran.a1policymanagementservice.repository.Service;
35 import org.onap.ccsdk.oran.a1policymanagementservice.repository.Services;
36 import org.springframework.beans.factory.annotation.Autowired;
37 import org.springframework.http.HttpStatus;
38 import org.springframework.http.ResponseEntity;
39 import org.springframework.web.bind.annotation.RestController;
40 import org.springframework.web.server.ServerWebExchange;
41 import reactor.core.publisher.Mono;
43 import java.net.MalformedURLException;
45 import java.time.Duration;
46 import java.util.ArrayList;
47 import java.util.Collection;
48 import java.util.List;
50 @RestController("ServiceControllerV2")
52 name = ServiceController.API_NAME, //
53 description = ServiceController.API_DESCRIPTION //
56 public class ServiceController implements ServiceRegistryAndSupervisionApi {
58 public static final String API_NAME = "Service Registry and Supervision";
59 public static final String API_DESCRIPTION = "";
61 private final Services services;
62 private final Policies policies;
65 private ObjectMapper objectMapper;
67 private static Gson gson = new GsonBuilder().create();
69 ServiceController(Services services, Policies policies) {
70 this.services = services;
71 this.policies = policies;
74 private static final String GET_SERVICE_DETAILS =
75 "Either information about a registered service with given identity or all registered services are returned.";
78 public Mono<ResponseEntity<ServiceStatusList>> getServices(final String name, final ServerWebExchange exchange) throws Exception {
79 if (name != null && this.services.get(name) == null) {
80 throw new ServiceException("Service not found", HttpStatus.NOT_FOUND);
83 List<ServiceStatus> servicesStatus = new ArrayList<>();
84 for (Service s : this.services.getAll()) {
85 if (name == null || name.equals(s.getName())) {
86 servicesStatus.add(toServiceStatus(s));
89 return Mono.just(new ResponseEntity<>(new ServiceStatusList().serviceList(servicesStatus), HttpStatus.OK));
92 private ServiceStatus toServiceStatus(Service s) {
93 return new ServiceStatus()
94 .serviceId(s.getName())
95 .keepAliveIntervalSeconds(s.getKeepAliveInterval().toSeconds())
96 .timeSinceLastActivitySeconds(s.timeSinceLastPing().toSeconds())
97 .callbackUrl(s.getCallbackUrl());
100 private void validateRegistrationInfo(ServiceRegistrationInfo registrationInfo)
101 throws ServiceException, MalformedURLException {
102 if (registrationInfo.getServiceId().isEmpty()) {
103 throw new ServiceException("Missing mandatory parameter 'service-id'");
105 if (registrationInfo.getKeepAliveIntervalSeconds() < 0) {
106 throw new ServiceException("Keep alive interval should be greater or equal to 0");
108 if (!registrationInfo.getCallbackUrl().isEmpty()) {
109 new URL(registrationInfo.getCallbackUrl());
113 private static final String REGISTER_SERVICE_DETAILS = "Registering a service is needed to:" //
115 + "<li>Get callbacks about available NearRT RICs.</li>" //
116 + "<li>Activate supervision of the service. If a service is inactive, its policies will automatically be deleted.</li>"//
118 + "Policies can be created even if the service is not registerred. This is a feature which it is optional to use.";
121 public Mono<ResponseEntity<Object>> putService(
122 final Mono<ServiceRegistrationInfo> registrationInfo, final ServerWebExchange exchange) {
123 return registrationInfo.flatMap(info -> {
125 validateRegistrationInfo(info);
126 } catch(Exception e) {
127 return ErrorResponse.createMono(e, HttpStatus.BAD_REQUEST);
129 final boolean isCreate = this.services.get(info.getServiceId()) == null;
130 this.services.put(toService(info));
131 return Mono.just(new ResponseEntity<>(isCreate ? HttpStatus.CREATED : HttpStatus.OK));
132 }).onErrorResume(Exception.class, e -> ErrorResponse.createMono(e, HttpStatus.BAD_REQUEST));
136 public Mono<ResponseEntity<Object>> deleteService(final String serviceId, final ServerWebExchange exchange) {
138 Service service = removeService(serviceId);
139 // Remove the policies from the repo and let the consistency monitoring
141 removePolicies(service);
142 return Mono.just(new ResponseEntity<>(HttpStatus.NO_CONTENT));
143 } catch (ServiceException e) {
144 return ErrorResponse.createMono(e, HttpStatus.NOT_FOUND);
149 public Mono<ResponseEntity<Object>> keepAliveService(final String serviceId, final ServerWebExchange exchange) throws ServiceException {
151 services.getService(serviceId).keepAlive();
152 return Mono.just(new ResponseEntity<>(HttpStatus.OK));
155 private Service removeService(String name) throws ServiceException {
156 Service service = this.services.getService(name); // Just to verify that it exists
157 this.services.remove(service.getName());
161 private void removePolicies(Service service) {
162 Collection<Policy> policyList = this.policies.getForService(service.getName());
163 for (Policy policy : policyList) {
164 this.policies.remove(policy);
168 private Service toService(ServiceRegistrationInfo s) {
169 return new Service(s.getServiceId(), Duration.ofSeconds(s.getKeepAliveIntervalSeconds()), s.getCallbackUrl());