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/*-
* ========================LICENSE_START=================================
* ONAP : ccsdk oran
* ======================================================================
* Copyright (C) 2020 Nordix Foundation. All rights reserved.
* ======================================================================
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
* ========================LICENSE_END===================================
*/
package org.onap.ccsdk.oran.a1policymanagementservice.clients;
import java.lang.invoke.MethodHandles;
import java.util.ArrayList;
import java.util.List;
import java.util.Optional;
import org.immutables.gson.Gson;
import org.immutables.value.Value;
import org.onap.ccsdk.oran.a1policymanagementservice.configuration.ControllerConfig;
import org.onap.ccsdk.oran.a1policymanagementservice.configuration.RicConfig;
import org.onap.ccsdk.oran.a1policymanagementservice.configuration.WebClientConfig;
import org.onap.ccsdk.oran.a1policymanagementservice.repository.Policy;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import reactor.core.publisher.Flux;
import reactor.core.publisher.Mono;
/**
* Client for accessing the A1 adapter in the SDNC controller in ONAP
*/
@SuppressWarnings("squid:S2629") // Invoke method(s) only conditionally
public class SdncOnapA1Client implements A1Client {
@Value.Immutable
@Gson.TypeAdapters
interface SdncOnapAdapterInput {
public String nearRtRicId();
public Optional<String> policyTypeId();
public Optional<String> policyInstanceId();
public Optional<String> policyInstance();
public Optional<List<String>> properties();
}
private static final String URL_PREFIX = "/A1-ADAPTER-API:";
private static final Logger logger = LoggerFactory.getLogger(MethodHandles.lookup().lookupClass());
private final ControllerConfig controllerConfig;
private final RicConfig ricConfig;
private final AsyncRestClient restClient;
public SdncOnapA1Client(RicConfig ricConfig, ControllerConfig controllerConfig, WebClientConfig clientConfig) {
this(ricConfig, controllerConfig,
new AsyncRestClient(controllerConfig.baseUrl() + "/restconf/operations", clientConfig));
logger.debug("SdncOnapA1Client for ric: {}, a1ControllerBaseUrl: {}", ricConfig.ricId(),
controllerConfig.baseUrl());
}
public SdncOnapA1Client(RicConfig ricConfig, ControllerConfig controllerConfig, AsyncRestClient restClient) {
this.ricConfig = ricConfig;
this.controllerConfig = controllerConfig;
this.restClient = restClient;
}
@Override
public Mono<List<String>> getPolicyTypeIdentities() {
return getPolicyTypeIds() //
.collectList();
}
@Override
public Mono<List<String>> getPolicyIdentities() {
return getPolicyTypeIds() //
.flatMap(this::getPolicyIdentitiesByType) //
.collectList();
}
@Override
public Mono<String> getPolicyTypeSchema(String policyTypeId) {
SdncOnapAdapterInput inputParams = ImmutableSdncOnapAdapterInput.builder() //
.nearRtRicId(ricConfig.baseUrl()) //
.policyTypeId(policyTypeId) //
.build();
String inputJsonString = SdncJsonHelper.createInputJsonString(inputParams);
logger.debug("POST getPolicyType inputJsonString = {}", inputJsonString);
return restClient
.postWithAuthHeader(URL_PREFIX + "getPolicyType", inputJsonString, controllerConfig.userName(),
controllerConfig.password()) //
.flatMap(response -> SdncJsonHelper.getValueFromResponse(response, "policy-type")) //
.flatMap(SdncJsonHelper::extractPolicySchema);
}
@Override
public Mono<String> putPolicy(Policy policy) {
SdncOnapAdapterInput inputParams = ImmutableSdncOnapAdapterInput.builder() //
.nearRtRicId(ricConfig.baseUrl()) //
.policyTypeId(policy.type().id()) //
.policyInstanceId(policy.id()) //
.policyInstance(policy.json()) //
.properties(new ArrayList<>()) //
.build();
String inputJsonString = SdncJsonHelper.createInputJsonString(inputParams);
logger.debug("POST putPolicy inputJsonString = {}", inputJsonString);
return restClient.postWithAuthHeader(URL_PREFIX + "createPolicyInstance", inputJsonString,
controllerConfig.userName(), controllerConfig.password());
}
@Override
public Mono<String> deletePolicy(Policy policy) {
return deletePolicyByTypeId(policy.type().id(), policy.id());
}
@Override
public Flux<String> deleteAllPolicies() {
return getPolicyTypeIds() //
.flatMap(this::deletePoliciesForType); //
}
@Override
public Mono<A1ProtocolType> getProtocolVersion() {
return getPolicyTypeIdentities() //
.flatMap(notUsed -> Mono.just(A1ProtocolType.SDNC_ONAP));
}
@Override
public Mono<String> getPolicyStatus(Policy policy) {
return Mono.error(new Exception("Status not implemented in the controller"));
}
private Flux<String> getPolicyTypeIds() {
SdncOnapAdapterInput inputParams = ImmutableSdncOnapAdapterInput.builder() //
.nearRtRicId(ricConfig.baseUrl()) //
.build();
String inputJsonString = SdncJsonHelper.createInputJsonString(inputParams);
logger.debug("POST getPolicyTypeIdentities inputJsonString = {}", inputJsonString);
return restClient
.postWithAuthHeader(URL_PREFIX + "getPolicyTypes", inputJsonString, controllerConfig.userName(),
controllerConfig.password()) //
.flatMap(response -> SdncJsonHelper.getValueFromResponse(response, "policy-type-id-list")) //
.flatMapMany(SdncJsonHelper::parseJsonArrayOfString);
}
private Flux<String> getPolicyIdentitiesByType(String policyTypeId) {
SdncOnapAdapterInput inputParams = ImmutableSdncOnapAdapterInput.builder() //
.nearRtRicId(ricConfig.baseUrl()) //
.policyTypeId(policyTypeId) //
.build();
String inputJsonString = SdncJsonHelper.createInputJsonString(inputParams);
logger.debug("POST getPolicyIdentities inputJsonString = {}", inputJsonString);
return restClient
.postWithAuthHeader(URL_PREFIX + "getPolicyInstances", inputJsonString, controllerConfig.userName(),
controllerConfig.password()) //
.flatMap(response -> SdncJsonHelper.getValueFromResponse(response, "policy-instance-id-list")) //
.flatMapMany(SdncJsonHelper::parseJsonArrayOfString);
}
private Flux<String> deletePoliciesForType(String typeId) {
return getPolicyIdentitiesByType(typeId) //
.flatMap(policyId -> deletePolicyByTypeId(typeId, policyId)); //
}
private Mono<String> deletePolicyByTypeId(String policyTypeId, String policyId) {
SdncOnapAdapterInput inputParams = ImmutableSdncOnapAdapterInput.builder() //
.nearRtRicId(ricConfig.baseUrl()) //
.policyTypeId(policyTypeId) //
.policyInstanceId(policyId) //
.build();
String inputJsonString = SdncJsonHelper.createInputJsonString(inputParams);
logger.debug("POST deletePolicy inputJsonString = {}", inputJsonString);
return restClient.postWithAuthHeader(URL_PREFIX + "deletePolicyInstance", inputJsonString,
controllerConfig.userName(), controllerConfig.password());
}
}
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