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/*
* ============LICENSE_START=======================================================
* PNF-REGISTRATION-HANDLER
* ================================================================================
* Copyright (C) 2019 NOKIA Intellectual Property. 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.dcaegen2.services.prh.tasks;
import com.google.gson.JsonObject;
import io.vavr.collection.HashMap;
import io.vavr.collection.Map;
import org.onap.dcaegen2.services.prh.configuration.Config;
import org.onap.dcaegen2.services.prh.exceptions.AaiFailureException;
import org.onap.dcaegen2.services.prh.model.ConsumerDmaapModel;
import org.onap.dcaegen2.services.prh.model.bbs.ImmutableLogicalLink;
import org.onap.dcaegen2.services.prh.model.bbs.ImmutableRelationship;
import org.onap.dcaegen2.services.prh.model.bbs.ImmutableRelationshipWrapper;
import org.onap.dcaegen2.services.prh.model.bbs.RelationshipWrapper;
import org.onap.dcaegen2.services.prh.model.utils.GsonSerializer;
import org.onap.dcaegen2.services.prh.model.utils.HttpUtils;
import org.onap.dcaegen2.services.sdk.rest.services.adapters.http.HttpResponse;
import org.onap.dcaegen2.services.sdk.rest.services.adapters.http.ImmutableHttpRequest;
import org.onap.dcaegen2.services.sdk.rest.services.adapters.http.RequestBody;
import org.onap.dcaegen2.services.sdk.rest.services.adapters.http.RxHttpClient;
import org.onap.dcaegen2.services.sdk.rest.services.uri.URI.URIBuilder;
import org.onap.dcaegen2.services.sdk.security.ssl.SslFactory;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;
import reactor.core.publisher.Mono;
import java.util.Arrays;
import java.util.List;
import java.util.function.Function;
import static org.onap.dcaegen2.services.sdk.rest.services.adapters.http.HttpMethod.PUT;
@Component
public class BbsActionsTaskImpl implements BbsActionsTask {
private static final Logger LOGGER = LoggerFactory.getLogger(BbsActionsTaskImpl.class);
private static final String ATTACHMENT_POINT = "attachmentPoint";
private static final String LOGICAL_LINK_URI = "/network/logical-links/logical-link/";
private static final String PNF_URI = "/network/pnfs/pnf/";
private final Config config;
private final RxHttpClient httpClient;
@Autowired
BbsActionsTaskImpl(Config config) {
this(config, RxHttpClient.create(new SslFactory().createInsecureClientContext()));
}
BbsActionsTaskImpl(Config config, RxHttpClient httpClient) {
this.config = config;
this.httpClient = httpClient;
}
public Mono<ConsumerDmaapModel> execute(ConsumerDmaapModel consumerDmaapModel) {
JsonObject additionalFields = consumerDmaapModel.getAdditionalFields();
if (additionalFields == null || !additionalFields.has(ATTACHMENT_POINT)) {
return Mono.just(consumerDmaapModel);
}
String linkName = additionalFields.get(ATTACHMENT_POINT).getAsString();
if (linkName.isEmpty()) {
LOGGER.warn("Attachment point is empty! Ignore related actions.");
return Mono.just(consumerDmaapModel);
}
String pnfName = consumerDmaapModel.getCorrelationId();
return createLogicalLinkInAai(linkName, pnfName).flatMap(handleResponse(consumerDmaapModel));
}
private Function<HttpResponse, Mono<ConsumerDmaapModel>> handleResponse(ConsumerDmaapModel consumerDmaapModel) {
return response -> HttpUtils.isSuccessfulResponseCode(response.statusCode())
? Mono.just(consumerDmaapModel)
: Mono.error(new AaiFailureException(
"Incorrect response when performing BBS-related actions: " + response.statusCode()));
}
private Mono<HttpResponse> createLogicalLinkInAai(String linkName, String pnfName) {
ImmutableHttpRequest request = buildLogicalLinkRequest(linkName, pnfName);
return httpClient.call(request);
}
private ImmutableHttpRequest buildLogicalLinkRequest(String linkName, String pnfName) {
String uri = buildLogicalLinkUri(linkName);
ImmutableLogicalLink logicalLink = buildModel(linkName, pnfName);
RequestBody requestBody = RequestBody.fromString(GsonSerializer.createJsonBody(logicalLink));
// FIXME: AAI headers for PUT are different than PATCH (taken from prh_endpoints.json)
Map<String, String> aaiHeaders = HashMap
.ofAll(config.getAaiClientConfiguration().aaiHeaders())
.put("Content-Type", "application/json");
return ImmutableHttpRequest
.builder()
.method(PUT)
.url(uri)
.body(requestBody)
.customHeaders(aaiHeaders)
.build();
}
private ImmutableLogicalLink buildModel(String linkName, String pnfName) {
List<RelationshipWrapper> relationships = buildRelationLink(pnfName);
return ImmutableLogicalLink
.builder()
.linkName(linkName)
.linkType(ATTACHMENT_POINT)
.relationshipList(relationships)
.build();
}
private List<RelationshipWrapper> buildRelationLink(String pnfName) {
return Arrays.asList(ImmutableRelationshipWrapper
.builder()
.relationship(ImmutableRelationship
.builder()
.relatedLink(PNF_URI + pnfName)
.build())
.build());
}
private String buildLogicalLinkUri(String linkName) {
return new URIBuilder()
.scheme(config.getAaiClientConfiguration().aaiProtocol())
.host(config.getAaiClientConfiguration().aaiHost())
.port(config.getAaiClientConfiguration().aaiPort())
.path(config.getAaiClientConfiguration().aaiBasePath() + LOGICAL_LINK_URI + linkName)
.build()
.toString();
}
}
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