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/*
* ============LICENSE_START=======================================================
* DCAEGEN2-SERVICES-SDK
* ================================================================================
* Copyright (C) 2018 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.sdk.rest.services.dmaap.client.service.consumer;
import com.google.gson.JsonElement;
import java.net.URI;
import java.util.Map;
import java.util.Optional;
import java.util.UUID;
import org.onap.dcaegen2.services.sdk.rest.services.adapters.http.CloudHttpClient;
import org.onap.dcaegen2.services.sdk.rest.services.dmaap.client.config.DmaapConsumerConfiguration;
import org.onap.dcaegen2.services.sdk.rest.services.dmaap.client.service.DMaaPAbstractReactiveHttpClient;
import org.onap.dcaegen2.services.sdk.rest.services.dmaap.client.service.DMaaPClientServiceUtils;
import org.onap.dcaegen2.services.sdk.rest.services.model.logging.ImmutableRequestDiagnosticContext;
import org.onap.dcaegen2.services.sdk.rest.services.model.logging.RequestDiagnosticContext;
import org.onap.dcaegen2.services.sdk.rest.services.uri.URI.URIBuilder;
import reactor.core.publisher.Mono;
/**
* @author <a href="mailto:przemyslaw.wasala@nokia.com">Przemysław Wąsala</a> on 6/26/18
*/
public class DMaaPConsumerReactiveHttpClient extends DMaaPAbstractReactiveHttpClient {
private final DmaapConsumerConfiguration consumerConfiguration;
private final CloudHttpClient cloudHttpClient;
/**
* Constructor of DMaaPConsumerReactiveHttpClient.
*
* @param consumerConfiguration - DMaaP consumer configuration object
*/
public DMaaPConsumerReactiveHttpClient(DmaapConsumerConfiguration consumerConfiguration,
CloudHttpClient cloudHttpClient) {
this.consumerConfiguration = consumerConfiguration;
this.cloudHttpClient = cloudHttpClient;
}
/**
* Function for calling DMaaP HTTP consumer - consuming messages from Kafka/DMaaP from topic.
*
* @return reactive response from DMaaP in string format
*/
public Mono<JsonElement> getDMaaPConsumerResponse(
Optional<RequestDiagnosticContext> requestDiagnosticContextOptional) {
Map<String, String> headers = DMaaPClientServiceUtils.getHeaders(consumerConfiguration.dmaapContentType());
if (requestDiagnosticContextOptional.isPresent()) {
return cloudHttpClient
.get(getUri().toString(), requestDiagnosticContextOptional.get(), headers, JsonElement.class);
}
RequestDiagnosticContext requestDiagnosticContext = ImmutableRequestDiagnosticContext.builder()
.invocationId(UUID.randomUUID()).requestId(UUID.randomUUID()).build();
return cloudHttpClient.get(getUri().toString(), requestDiagnosticContext, headers, JsonElement.class);
}
URI getUri() {
return URI.create(
new URIBuilder().scheme(consumerConfiguration.dmaapProtocol()).host(consumerConfiguration.dmaapHostName())
.port(consumerConfiguration.dmaapPortNumber()).path(createRequestPath())
.build().toString());
}
private String createRequestPath() {
return new StringBuilder().append(SLASH).append(consumerConfiguration.dmaapTopicName()).append(SLASH)
.append(consumerConfiguration.consumerGroup())
.append(SLASH).append(consumerConfiguration.consumerId()).toString();
}
}
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