* ========================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.repository.Policy;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
+import org.springframework.web.util.UriComponentsBuilder;
+
+import reactor.core.publisher.Flux;
import reactor.core.publisher.Mono;
public class OscA1Client implements A1Client {
+ private static final String URL_PREFIX = "/a1-p";
+
+ private static final String POLICY_TYPES = "/policytypes";
+ private static final String CREATE_SCHEMA = "create_schema";
+ private static final String TITLE = "title";
+
+ private static final String HEALTHCHECK = "/healthcheck";
+
+ private static final UriComponentsBuilder POLICY_TYPE_SCHEMA_URI =
+ UriComponentsBuilder.fromPath("/policytypes/{policy-type-name}");
+
+ private static final UriComponentsBuilder POLICY_URI =
+ UriComponentsBuilder.fromPath("/policytypes/{policy-type-name}/policies/{policy-id}");
+
+ private static final UriComponentsBuilder POLICY_IDS_URI =
+ UriComponentsBuilder.fromPath("/policytypes/{policy-type-name}/policies");
+
+ private static final UriComponentsBuilder POLICY_STATUS_URI =
+ UriComponentsBuilder.fromPath("/policytypes/{policy-type-name}/policies/{policy-id}/status");
+
private static final Logger logger = LoggerFactory.getLogger(MethodHandles.lookup().lookupClass());
- private final RicConfig ricConfig;
+ private final AsyncRestClient restClient;
public OscA1Client(RicConfig ricConfig) {
- this.ricConfig = ricConfig;
- logger.debug("OscA1Client for ric: {}", this.ricConfig.name());
+ String baseUrl = ricConfig.baseUrl() + URL_PREFIX;
+ this.restClient = new AsyncRestClient(baseUrl);
+ if (logger.isDebugEnabled()) {
+ logger.debug("OscA1Client for ric: {}", ricConfig.name());
+ }
+ }
+
+ public OscA1Client(AsyncRestClient restClient) {
+ this.restClient = restClient;
}
@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 uri = POLICY_TYPE_SCHEMA_URI.buildAndExpand(policyTypeId).toUriString();
+ return restClient.get(uri) //
+ .flatMap(response -> getCreateSchema(response, policyTypeId));
}
@Override
public Mono<String> putPolicy(Policy policy) {
- return Mono.error(new Exception("Not impl"));
+ String uri = POLICY_URI.buildAndExpand(policy.type().name(), policy.id()).toUriString();
+ return restClient.put(uri, 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(HEALTHCHECK) //
+ .flatMap(notUsed -> Mono.just(A1ProtocolType.OSC_V1));
+ }
+
+ @Override
+ public Flux<String> deleteAllPolicies() {
+ return getPolicyTypeIds() //
+ .flatMap(this::deletePoliciesForType);
}
+ @Override
+ public Mono<String> getPolicyStatus(Policy policy) {
+ String uri = POLICY_STATUS_URI.buildAndExpand(policy.type().name(), policy.id()).toUriString();
+ return restClient.get(uri);
+
+ }
+
+ private Flux<String> getPolicyTypeIds() {
+ return restClient.get(POLICY_TYPES) //
+ .flatMapMany(JsonHelper::parseJsonArrayOfString);
+ }
+
+ private Flux<String> getPolicyIdentitiesByType(String typeId) {
+ return restClient.get(POLICY_IDS_URI.buildAndExpand(typeId).toUriString()) //
+ .flatMapMany(JsonHelper::parseJsonArrayOfString);
+ }
+
+ private Mono<String> getCreateSchema(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) {
+ logger.error("Unexpected response for policy type: {}, exception: {}", policyTypeResponse, e.toString());
+ return Mono.error(e);
+ }
+ }
+
+ private Mono<String> deletePolicyById(String typeId, String policyId) {
+ String uri = POLICY_URI.buildAndExpand(typeId, policyId).toUriString();
+ return restClient.delete(uri);
+ }
+
+ private Flux<String> deletePoliciesForType(String typeId) {
+ return getPolicyIdentitiesByType(typeId) //
+ .flatMap(policyId -> deletePolicyById(typeId, policyId));
+ }
}