2 * ============LICENSE_START=======================================================
3 * Copyright (C) 2019 Nordix Foundation.
4 * ================================================================================
5 * Licensed under the Apache License, Version 2.0 (the "License");
6 * you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at
9 * http://www.apache.org/licenses/LICENSE-2.0
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
17 * SPDX-License-Identifier: Apache-2.0
18 * ============LICENSE_END=========================================================
21 package org.onap.dcaegen2.collectors.datafile.tasks;
23 import org.onap.dcaegen2.collectors.datafile.configuration.AppConfig;
24 import org.onap.dcaegen2.collectors.datafile.model.FileReadyMessage;
25 import org.onap.dcaegen2.collectors.datafile.service.DmaapWebClient;
26 import org.onap.dcaegen2.collectors.datafile.service.JsonMessageParser;
27 import org.onap.dcaegen2.services.sdk.rest.services.dmaap.client.config.DmaapConsumerConfiguration;
28 import org.onap.dcaegen2.services.sdk.rest.services.dmaap.client.service.consumer.DMaaPConsumerReactiveHttpClient;
29 import org.slf4j.Logger;
30 import org.slf4j.LoggerFactory;
31 import org.springframework.web.reactive.function.client.WebClient;
32 import reactor.core.publisher.Flux;
33 import reactor.core.publisher.Mono;
36 * Component used to get messages from the MessageRouter.
38 * @author <a href="mailto:henrik.b.andersson@est.tech">Henrik Andersson</a>
40 public class DMaaPMessageConsumer {
41 private static final Logger logger = LoggerFactory.getLogger(DMaaPMessageConsumer.class);
43 private final JsonMessageParser jsonMessageParser;
44 private final DMaaPConsumerReactiveHttpClient dmaaPConsumerReactiveHttpClient;
46 public DMaaPMessageConsumer(AppConfig datafileAppConfig) {
47 this.jsonMessageParser = new JsonMessageParser();
48 this.dmaaPConsumerReactiveHttpClient = createHttpClient(datafileAppConfig);
51 protected DMaaPMessageConsumer(DMaaPConsumerReactiveHttpClient dmaaPConsumerReactiveHttpClient,
52 JsonMessageParser messageParser) {
53 this.dmaaPConsumerReactiveHttpClient = dmaaPConsumerReactiveHttpClient;
54 this.jsonMessageParser = messageParser;
58 * Gets the response from the MessageRouter and turns it into a stream of fileReady messages.
60 * @return a stream of fileReady messages.
62 public Flux<FileReadyMessage> getMessageRouterResponse() {
63 logger.trace("getMessageRouterResponse called");
64 return consume((dmaaPConsumerReactiveHttpClient.getDMaaPConsumerResponse()));
67 private Flux<FileReadyMessage> consume(Mono<String> message) {
68 logger.trace("consume called with arg {}", message);
69 return jsonMessageParser.getMessagesFromJson(message);
72 private static DMaaPConsumerReactiveHttpClient createHttpClient(AppConfig datafileAppConfig) {
73 DmaapConsumerConfiguration config = datafileAppConfig.getDmaapConsumerConfiguration();
74 WebClient client = new DmaapWebClient().fromConfiguration(config).build();
75 return new DMaaPConsumerReactiveHttpClient(config, client);