org.eclipse.tractusx.irs.registryclient.discovery.DiscoveryFinderClientImpl Maven / Gradle / Ivy

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Client library to easily talk to the DTR
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/********************************************************************************
 * Copyright (c) 2022,2024
 *       2022: ZF Friedrichshafen AG
 *       2022: ISTOS GmbH
 *       2022,2024: Bayerische Motoren Werke Aktiengesellschaft (BMW AG)
 *       2022,2023: BOSCH AG
 * Copyright (c) 2021,2024 Contributors to the Eclipse Foundation
 *
 * See the NOTICE file(s) distributed with this work for additional
 * information regarding copyright ownership.
 *
 * This program and the accompanying materials are made available under the
 * terms of the Apache License, Version 2.0 which is available at
 * https://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
 ********************************************************************************/
package org.eclipse.tractusx.irs.registryclient.discovery;

import java.util.List;

import io.github.resilience4j.retry.annotation.Retry;
import lombok.extern.slf4j.Slf4j;
import org.springframework.cache.annotation.CacheEvict;
import org.springframework.cache.annotation.Cacheable;
import org.springframework.scheduling.annotation.Scheduled;
import org.springframework.web.client.RestTemplate;

/**
 * Discovery finder client implementation.
 */
@Slf4j
public class DiscoveryFinderClientImpl implements DiscoveryFinderClient {

    public static final String DISCOVERY_ENDPOINTS_CACHE = "discovery_endpoints_cache";

    private final String discoveryFinderUrl;

    private final RestTemplate restTemplate;

    public DiscoveryFinderClientImpl(final String discoveryFinderUrl, final RestTemplate restTemplate) {
        this.discoveryFinderUrl = discoveryFinderUrl;
        this.restTemplate = restTemplate;
    }

    @Override
    @Retry(name = "registry")
    @Cacheable(DISCOVERY_ENDPOINTS_CACHE)
    public DiscoveryResponse findDiscoveryEndpoints(final DiscoveryFinderRequest request) {
        return restTemplate.postForObject(discoveryFinderUrl, request, DiscoveryResponse.class);
    }

    @CacheEvict(value = DISCOVERY_ENDPOINTS_CACHE, allEntries = true)
    @Scheduled(fixedRateString = "${irs-edc-client.discoveryFinderClient.cacheTTL}")
    public void evictDiscoveryEndpointsCacheValues() {
        log.debug("Clearing \"{}\" cache.", DISCOVERY_ENDPOINTS_CACHE);
    }

    @Override
    @Retry(name = "registry")
    public List findConnectorEndpoints(final String endpointAddress, final List bpns) {
        return toList(restTemplate.postForObject(endpointAddress, bpns, EdcDiscoveryResult[].class));
    }

    private static  List toList(final T... arr) {
        return arr == null ? List.of() : List.of(arr);
    }

}