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 com.google.gson.JsonElement;
25 import java.util.Optional;
27 import org.onap.dcaegen2.collectors.datafile.configuration.AppConfig;
28 import org.onap.dcaegen2.collectors.datafile.exceptions.DatafileTaskException;
29 import org.onap.dcaegen2.collectors.datafile.model.FileReadyMessage;
30 import org.onap.dcaegen2.collectors.datafile.service.JsonMessageParser;
31 import org.onap.dcaegen2.services.sdk.rest.services.dmaap.client.service.consumer.ConsumerReactiveHttpClientFactory;
32 import org.onap.dcaegen2.services.sdk.rest.services.dmaap.client.service.consumer.DMaaPConsumerReactiveHttpClient;
33 import org.onap.dcaegen2.services.sdk.rest.services.dmaap.client.service.consumer.DMaaPReactiveWebClientFactory;
34 import org.slf4j.Logger;
35 import org.slf4j.LoggerFactory;
37 import reactor.core.publisher.Flux;
38 import reactor.core.publisher.Mono;
41 * Component used to get messages from the MessageRouter.
43 * @author <a href="mailto:henrik.b.andersson@est.tech">Henrik Andersson</a>
45 public class DMaaPMessageConsumer {
46 private static final Logger logger = LoggerFactory.getLogger(DMaaPMessageConsumer.class);
47 private final AppConfig datafileAppConfig;
48 private final JsonMessageParser jsonMessageParser;
49 private final ConsumerReactiveHttpClientFactory httpClientFactory;
51 public DMaaPMessageConsumer(AppConfig datafileAppConfig) {
52 this(datafileAppConfig, new JsonMessageParser(),
53 new ConsumerReactiveHttpClientFactory(new DMaaPReactiveWebClientFactory()));
56 protected DMaaPMessageConsumer(AppConfig datafileAppConfig, JsonMessageParser jsonMessageParser,
57 ConsumerReactiveHttpClientFactory httpClientFactory) {
58 this.datafileAppConfig = datafileAppConfig;
59 this.jsonMessageParser = jsonMessageParser;
60 this.httpClientFactory = httpClientFactory;
64 * Gets the response from the MessageRouter and turns it into a stream of fileReady messages.
66 * @return a stream of fileReady messages.
68 public Flux<FileReadyMessage> getMessageRouterResponse() {
69 logger.trace("getMessageRouterResponse called");
71 DMaaPConsumerReactiveHttpClient dMaaPConsumerReactiveHttpClient = createHttpClient();
72 return consume((dMaaPConsumerReactiveHttpClient.getDMaaPConsumerResponse(Optional.empty())));
73 } catch (DatafileTaskException e) {
74 logger.warn("Unable to get response from message router", e);
79 private Flux<FileReadyMessage> consume(Mono<JsonElement> message) {
80 logger.trace("consume called with arg {}", message);
81 return jsonMessageParser.getMessagesFromJson(message);
84 public DMaaPConsumerReactiveHttpClient createHttpClient() throws DatafileTaskException {
86 return httpClientFactory.create(datafileAppConfig.getDmaapConsumerConfiguration().toDmaap());