* ========================LICENSE_START=================================
* O-RAN-SC
* %%
- * Copyright (C) 2019 Nordix Foundation
+ * Copyright (C) 2020 Nordix Foundation
* %%
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
package org.oransc.policyagent.clients;
import java.lang.invoke.MethodHandles;
-import java.util.Collection;
+import java.util.List;
+import org.json.JSONObject;
import org.oransc.policyagent.configuration.RicConfig;
+import org.oransc.policyagent.configuration.WebClientConfig;
import org.oransc.policyagent.repository.Policy;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
+
+import reactor.core.publisher.Flux;
import reactor.core.publisher.Mono;
+/**
+ * Client for accessing OSC A1 REST API
+ */
+@SuppressWarnings("squid:S2629") // Invoke method(s) only conditionally
public class OscA1Client implements A1Client {
+ static final int CONCURRENCY_RIC = 1; // How may paralell requests that is sent to one NearRT RIC
+
+ public static class UriBuilder implements A1UriBuilder {
+ private final RicConfig ricConfig;
+
+ public UriBuilder(RicConfig ricConfig) {
+ this.ricConfig = ricConfig;
+ }
+
+ @Override
+ public String createPutPolicyUri(String type, String policyId) {
+ return createPolicyUri(type, policyId);
+ }
+
+ /**
+ * /a1-p/policytypes/{policy_type_id}/policies
+ */
+ public String createGetPolicyIdsUri(String type) {
+ return createPolicyTypeUri(type) + "/policies";
+ }
+
+ @Override
+ public String createDeleteUri(String type, String policyId) {
+ return createPolicyUri(type, policyId);
+ }
+
+ /**
+ * /a1-p/policytypes/{policy_type_id}/policies/{policy_instance_id}/status
+ */
+ @Override
+ public String createGetPolicyStatusUri(String type, String policyId) {
+ return createPolicyUri(type, policyId) + "/status";
+ }
+
+ /**
+ * /a1-p/healthcheck
+ */
+ public String createHealtcheckUri() {
+ return baseUri() + "/healthcheck";
+ }
+
+ /**
+ * /a1-p/policytypes/{policy_type_id}
+ */
+ public String createGetSchemaUri(String type) {
+ return this.createPolicyTypeUri(type);
+ }
+
+ /**
+ * /a1-p/policytypes/{policy_type_id}
+ */
+ public String createPolicyTypesUri() {
+ return baseUri() + "/policytypes";
+ }
+
+ /**
+ * /a1-p/policytypes/{policy_type_id}/policies/{policy_instance_id}
+ */
+ private String createPolicyUri(String type, String id) {
+ return createPolicyTypeUri(type) + "/policies/" + id;
+ }
+
+ /**
+ * /a1-p/policytypes/{policy_type_id}
+ */
+ private String createPolicyTypeUri(String type) {
+ return createPolicyTypesUri() + "/" + type;
+ }
+
+ private String baseUri() {
+ return ricConfig.baseUrl() + "/a1-p";
+ }
+ }
+
+ private static final String TITLE = "title";
private static final Logger logger = LoggerFactory.getLogger(MethodHandles.lookup().lookupClass());
+ private final AsyncRestClient restClient;
+ private final UriBuilder uri;
+
+ public OscA1Client(RicConfig ricConfig, WebClientConfig clientConfig) {
+ this(ricConfig, new AsyncRestClient("", clientConfig));
+ }
+
+ public OscA1Client(RicConfig ricConfig, AsyncRestClient restClient) {
+ this.restClient = restClient;
+ logger.debug("OscA1Client for ric: {}", ricConfig.name());
- private final RicConfig ricConfig;
+ uri = new UriBuilder(ricConfig);
+ }
- public OscA1Client(RicConfig ricConfig) {
- this.ricConfig = ricConfig;
- logger.debug("OscA1Client for ric: {}", this.ricConfig.name());
+ public static Mono<String> extractCreateSchema(String policyTypeResponse, String policyTypeId) {
+ try {
+ JSONObject obj = new JSONObject(policyTypeResponse);
+ JSONObject schemaObj = obj.getJSONObject("create_schema");
+ schemaObj.put(TITLE, policyTypeId);
+ return Mono.just(schemaObj.toString());
+ } catch (Exception e) {
+ String exceptionString = e.toString();
+ logger.error("Unexpected response for policy type: {}, exception: {}", policyTypeResponse, exceptionString);
+ return Mono.error(e);
+ }
}
@Override
- public Mono<Collection<String>> getPolicyTypeIdentities() {
- return Mono.error(new Exception("Not impl"));
+ public Mono<List<String>> getPolicyTypeIdentities() {
+ return getPolicyTypeIds() //
+ .collectList();
}
@Override
- public Mono<Collection<String>> getPolicyIdentities() {
- return Mono.error(new Exception("Not impl"));
+ public Mono<List<String>> getPolicyIdentities() {
+ return getPolicyTypeIds() //
+ .flatMap(this::getPolicyIdentitiesByType) //
+ .collectList();
}
@Override
public Mono<String> getPolicyTypeSchema(String policyTypeId) {
- return Mono.error(new Exception("Not impl"));
+ String schemaUri = uri.createGetSchemaUri(policyTypeId);
+ return restClient.get(schemaUri) //
+ .flatMap(response -> extractCreateSchema(response, policyTypeId));
}
@Override
public Mono<String> putPolicy(Policy policy) {
- return Mono.error(new Exception("Not impl"));
+ String policyUri = this.uri.createPutPolicyUri(policy.type().name(), policy.id());
+ return restClient.put(policyUri, policy.json());
}
@Override
- public Mono<String> deletePolicy(String policyId) {
- return Mono.error(new Exception("Not impl"));
+ public Mono<String> deletePolicy(Policy policy) {
+ return deletePolicyById(policy.type().name(), policy.id());
}
@Override
public Mono<A1ProtocolType> getProtocolVersion() {
- return Mono.error(new Exception("Not impl"));
+ return restClient.get(uri.createHealtcheckUri()) //
+ .flatMap(notUsed -> Mono.just(A1ProtocolType.OSC_V1));
}
+ @Override
+ public Flux<String> deleteAllPolicies() {
+ return getPolicyTypeIds() //
+ .flatMap(this::deletePoliciesForType, CONCURRENCY_RIC);
+ }
+
+ @Override
+ public Mono<String> getPolicyStatus(Policy policy) {
+ String statusUri = uri.createGetPolicyStatusUri(policy.type().name(), policy.id());
+ return restClient.get(statusUri);
+
+ }
+
+ private Flux<String> getPolicyTypeIds() {
+ return restClient.get(uri.createPolicyTypesUri()) //
+ .flatMapMany(SdncJsonHelper::parseJsonArrayOfString);
+ }
+
+ private Flux<String> getPolicyIdentitiesByType(String typeId) {
+ return restClient.get(uri.createGetPolicyIdsUri(typeId)) //
+ .flatMapMany(SdncJsonHelper::parseJsonArrayOfString);
+ }
+
+ private Mono<String> deletePolicyById(String typeId, String policyId) {
+ String policyUri = uri.createDeleteUri(typeId, policyId);
+ return restClient.delete(policyUri);
+ }
+
+ private Flux<String> deletePoliciesForType(String typeId) {
+ return getPolicyIdentitiesByType(typeId) //
+ .flatMap(policyId -> deletePolicyById(typeId, policyId), CONCURRENCY_RIC);
+ }
}
Code Review / nonrtric.git / blobdiff