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/*-
* ============LICENSE_START=======================================================
* Copyright (C) 2022 Nordix Foundation.
* ================================================================================
* 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.
*
* SPDX-License-Identifier: Apache-2.0
* ============LICENSE_END=========================================================
*/
package org.onap.policy.clamp.acm.participant.a1pms.webclient;
import java.lang.invoke.MethodHandles;
import java.util.List;
import java.util.Map;
import java.util.Objects;
import java.util.function.Predicate;
import lombok.RequiredArgsConstructor;
import org.onap.policy.clamp.acm.participant.a1pms.exception.A1PolicyServiceException;
import org.onap.policy.clamp.acm.participant.a1pms.models.A1PolicyServiceEntity;
import org.onap.policy.clamp.acm.participant.a1pms.parameters.A1PmsParameters;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.http.HttpHeaders;
import org.springframework.http.HttpMethod;
import org.springframework.http.HttpStatus;
import org.springframework.stereotype.Component;
import org.springframework.web.reactive.function.client.WebClient;
import reactor.core.publisher.Mono;
@Component
@RequiredArgsConstructor
public class AcA1PmsClient {
private final A1PmsParameters a1PmsParameters;
private static final Logger LOGGER = LoggerFactory.getLogger(MethodHandles.lookup().lookupClass());
/**
* Get webclient for A1PMS.
*
* @return webClient
*/
private WebClient getPmsClient() {
return WebClient.builder().baseUrl(a1PmsParameters.getBaseUrl())
.defaultHeaders(httpHeaders -> httpHeaders.addAll(createHeaders())).build();
}
/**
* Get A1PMS health status.
*
* @return whether A1PMS is healthy
*/
public boolean isPmsHealthy() {
return Objects.equals(Boolean.TRUE,
getPmsClient().method(HttpMethod.GET).uri(a1PmsParameters.getEndpoints().getHealth())
.exchangeToMono(clientResponse -> Mono.just(clientResponse.statusCode().is2xxSuccessful()))
.block());
}
/**
* Create service in A1PMS.
* @param policyServiceEntities List of service entities
* @throws A1PolicyServiceException Exception on creating service
*/
public void createService(List<A1PolicyServiceEntity> policyServiceEntities) throws A1PolicyServiceException {
policyServiceEntities.forEach(
a1PolicyServiceEntity -> getPmsClient().method(HttpMethod.PUT)
.uri(a1PmsParameters.getEndpoints().getServices())
.bodyValue(a1PolicyServiceEntity).retrieve()
.onStatus(HttpStatus::isError,
clientResponse -> Mono.error(new A1PolicyServiceException(
clientResponse.statusCode().value(),
"Error in creating policy service")))
.onStatus(Predicate.isEqual(HttpStatus.OK),
clientResponse -> {
LOGGER.warn("Client {} already exists and the configuration "
+ "is updated",
a1PolicyServiceEntity.getClientId());
return Mono.empty();
})
.toBodilessEntity()
.block());
}
/**
* Delete service in A1PMS.
* @param policyServiceEntities List of service entities
* @throws A1PolicyServiceException Exception on deleting service
*/
public void deleteService(List<A1PolicyServiceEntity> policyServiceEntities) throws A1PolicyServiceException {
policyServiceEntities.forEach(
a1PolicyServiceEntity -> getPmsClient().method(HttpMethod.DELETE)
.uri(a1PmsParameters.getEndpoints().getService(),
a1PolicyServiceEntity.getClientId())
.bodyValue(a1PolicyServiceEntity).retrieve()
.onStatus(HttpStatus::isError,
clientResponse -> Mono.error(
new A1PolicyServiceException(
clientResponse.statusCode().value(),
"Error in deleting policy service")))
.toBodilessEntity()
.block());
}
/**
* Prepare the Http headers to call A1PMS.
*
* @return httpHeaders
*/
private HttpHeaders createHeaders() {
var headers = new HttpHeaders();
for (Map.Entry<String, String> entry : a1PmsParameters.getHeaders().entrySet()) {
headers.add(entry.getKey(), entry.getValue());
}
return headers;
}
}
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