add-src/main/java/org/onap/ccsdk/oran/a1policymanagementservice/clients/A1MediatorAdapterI.java

   1 /*-
   2  * ========================LICENSE_START=================================
   3  * O-RAN-SC
   4  * %%
   5  *  Copyright (C) 2024 OpenInfra Foundation Europe. 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
  10  *
  11  *      http://www.apache.org/licenses/LICENSE-2.0
  12  *
  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===================================
  19  */
  20
  21 package org.onap.ccsdk.oran.a1policymanagementservice.clients;
  22
  23 import static org.onap.ccsdk.oran.a1policymanagementservice.clients.OscA1Client.extractCreateSchema;
  24
  25 import java.lang.invoke.MethodHandles;
  26 import java.util.List;
  27 import java.util.Set;
  28 import org.onap.ccsdk.oran.a1policymanagementservice.configuration.RicConfig;
  29 import org.onap.ccsdk.oran.a1policymanagementservice.repository.Policy;
  30 import org.slf4j.Logger;
  31 import org.slf4j.LoggerFactory;
  32 import reactor.core.publisher.Flux;
  33 import reactor.core.publisher.Mono;
  34
  35 /**
  36  * Client for accessing OSC A1-Mediator A1-P Version (Release I)
  37  */
  38 @SuppressWarnings("squid:S2629") // Invoke method(s) only conditionally
  39 public class A1MediatorAdapterI implements A1Client {
  40     static final int CONCURRENCY_RIC = 1; // How many parallel requests that is sent to one NearRT RIC
  41
  42     public static class Factory implements A1Client.Factory {
  43         @Override
  44         public A1Client create(RicConfig ricConfig, AsyncRestClientFactory restClientFactory) {
  45             return new A1MediatorAdapterI(ricConfig, restClientFactory);
  46         }
  47     }
  48
  49     public static class A1MediatorRelIUriBuilder extends StdA1ClientVersion2.OranV2UriBuilder{
  50         public A1MediatorRelIUriBuilder(RicConfig ricConfig) {
  51             super(ricConfig);
  52         }
  53     }
  54
  55     private static final Logger logger = LoggerFactory.getLogger(MethodHandles.lookup().lookupClass());
  56     private final AsyncRestClient restClient;
  57     private final A1MediatorRelIUriBuilder uriBuilder;
  58
  59     public A1MediatorAdapterI(RicConfig ricConfig, AsyncRestClientFactory restClientFactory) {
  60         this(ricConfig, restClientFactory.createRestClientUseHttpProxy(""));
  61     }
  62
  63     public A1MediatorAdapterI(RicConfig ricConfig, AsyncRestClient restClient) {
  64         this.restClient = restClient;
  65         logger.debug("A1MediatorAdapterI for ric: {}", ricConfig.getRicId());
  66         uriBuilder = new A1MediatorRelIUriBuilder(ricConfig);
  67     }
  68
  69     @Override
  70     public Mono<List<String>> getPolicyTypeIdentities() {
  71         return getPolicyTypeIds() //
  72                 .collectList();
  73     }
  74
  75     @Override
  76     public Mono<List<String>> getPolicyIdentities() {
  77         return getPolicyTypeIds() //
  78                 .flatMap(this::getPolicyIdentitiesByType) //
  79                 .collectList();
  80     }
  81
  82     @Override
  83     public Mono<String> getPolicyTypeSchema(String policyTypeId) {
  84         String schemaUri = uriBuilder.createGetSchemaUri(policyTypeId);
  85         return restClient.get(schemaUri) //
  86                 .flatMap(response -> extractCreateSchema(response, policyTypeId));
  87     }
  88
  89     @Override
  90     public Mono<String> putPolicy(Policy policy) {
  91         String policyUri = this.uriBuilder.createPutPolicyUri(policy.getType().getId(), policy.getId(),
  92                 policy.getStatusNotificationUri());
  93         return restClient.put(policyUri, policy.getJson());
  94     }
  95
  96     @Override
  97     public Mono<String> deletePolicy(Policy policy) {
  98         return deletePolicyById(policy.getType().getId(), policy.getId());
  99     }
 100
 101     @Override
 102     public Mono<A1ProtocolType> getProtocolVersion() {
 103         return Mono.just(A1ProtocolType.CUSTOM_PROTOCOL);
 104     }
 105
 106     @Override
 107     public Flux<String> deleteAllPolicies(Set<String> excludePolicyIds) {
 108         return getPolicyTypeIds() //
 109                 .flatMap(typeId -> deletePoliciesForType(typeId, excludePolicyIds), CONCURRENCY_RIC);
 110     }
 111
 112     @Override
 113     public Mono<String> getPolicyStatus(Policy policy) {
 114         String statusUri = uriBuilder.createGetPolicyStatusUri(policy.getType().getId(), policy.getId());
 115         return restClient.get(statusUri);
 116
 117     }
 118
 119     private Flux<String> getPolicyTypeIds() {
 120         return restClient.get(uriBuilder.createPolicyTypesUri()) //
 121                 .flatMapMany(A1AdapterJsonHelper::parseJsonArrayOfString);
 122     }
 123
 124     private Flux<String> getPolicyIdentitiesByType(String typeId) {
 125         return restClient.get(uriBuilder.createGetPolicyIdsUri(typeId)) //
 126                 .flatMapMany(A1AdapterJsonHelper::parseJsonArrayOfString);
 127     }
 128
 129     private Mono<String> deletePolicyById(String typeId, String policyId) {
 130         String policyUri = uriBuilder.createDeleteUri(typeId, policyId);
 131         return restClient.delete(policyUri);
 132     }
 133
 134     private Flux<String> deletePoliciesForType(String typeId, Set<String> excludePolicyIds) {
 135         return getPolicyIdentitiesByType(typeId) //
 136                 .filter(policyId -> !excludePolicyIds.contains(policyId)) //
 137                 .flatMap(policyId -> deletePolicyById(typeId, policyId), CONCURRENCY_RIC);
 138     }
 139 }