diff options
Diffstat (limited to 'rest-services/dmaap-client/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/dmaap/client/impl/MessageRouterSubscriberImpl.java')
-rw-r--r-- | rest-services/dmaap-client/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/dmaap/client/impl/MessageRouterSubscriberImpl.java | 81 |
1 files changed, 81 insertions, 0 deletions
diff --git a/rest-services/dmaap-client/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/dmaap/client/impl/MessageRouterSubscriberImpl.java b/rest-services/dmaap-client/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/dmaap/client/impl/MessageRouterSubscriberImpl.java new file mode 100644 index 00000000..e91a77fa --- /dev/null +++ b/rest-services/dmaap-client/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/dmaap/client/impl/MessageRouterSubscriberImpl.java @@ -0,0 +1,81 @@ +/* + * ============LICENSE_START==================================== + * DCAEGEN2-SERVICES-SDK + * ========================================================= + * Copyright (C) 2019 Nokia. 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.sdk.rest.services.dmaap.client.impl; + +import static org.onap.dcaegen2.services.sdk.rest.services.dmaap.client.impl.Commons.extractFailReason; + +import com.google.gson.Gson; +import com.google.gson.JsonArray; +import java.nio.charset.StandardCharsets; +import org.jetbrains.annotations.NotNull; +import org.onap.dcaegen2.services.sdk.rest.services.adapters.http.HttpMethod; +import org.onap.dcaegen2.services.sdk.rest.services.adapters.http.HttpRequest; +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.RxHttpClient; +import org.onap.dcaegen2.services.sdk.rest.services.dmaap.client.api.MessageRouterSubscriber; +import org.onap.dcaegen2.services.sdk.rest.services.dmaap.client.model.ImmutableMessageRouterSubscribeResponse; +import org.onap.dcaegen2.services.sdk.rest.services.dmaap.client.model.MessageRouterSubscribeRequest; +import org.onap.dcaegen2.services.sdk.rest.services.dmaap.client.model.MessageRouterSubscribeResponse; +import reactor.core.publisher.Mono; + +/** + * @author <a href="mailto:piotr.jaszczyk@nokia.com">Piotr Jaszczyk</a> + * @since March 2019 + */ +// TODO: This is a PoC. It's untested. +public class MessageRouterSubscriberImpl implements MessageRouterSubscriber { + private final RxHttpClient httpClient; + private final Gson gson; + + public MessageRouterSubscriberImpl(RxHttpClient httpClient, Gson gson) { + this.httpClient = httpClient; + this.gson = gson; + } + + @Override + public Mono<MessageRouterSubscribeResponse> get(MessageRouterSubscribeRequest request) { + return httpClient.call(buildGetHttpRequest(request)).map(this::buildGetResponse); + } + + + private @NotNull MessageRouterSubscribeResponse buildGetResponse(HttpResponse httpResponse) { + final ImmutableMessageRouterSubscribeResponse.Builder builder = + ImmutableMessageRouterSubscribeResponse.builder(); + return httpResponse.successful() + ? builder.items(httpResponse.bodyAsJson(StandardCharsets.UTF_8, gson, JsonArray.class)).build() + : builder.failReason(extractFailReason(httpResponse)).build(); + } + + + private @NotNull HttpRequest buildGetHttpRequest(MessageRouterSubscribeRequest request) { + return ImmutableHttpRequest.builder() + .method(HttpMethod.GET) + .url(buildSubscribeUrl(request)) + .diagnosticContext(request.diagnosticContext()) + .build(); + } + + private String buildSubscribeUrl(MessageRouterSubscribeRequest request) { + return String.format("%s/%s/%s", request.sourceDefinition().topicUrl(), request.consumerGroup(), + request.consumerId()); + } +} |