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/*
* ================================================================================
* Copyright (c) 2018 AT&T Intellectual Property. All rights reserved.
* Copyright (c) 2021 China Mobile Property. All rights reserved.
* Copyright (c) 2021 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.dcae.analytics.web.config;
import org.onap.dcae.analytics.model.AnalyticsHttpConstants;
import org.onap.dcae.analytics.model.AnalyticsProfile;
import org.onap.dcae.analytics.model.DmaapMrConstants;
import org.onap.dcae.analytics.web.dmaap.MrMessageSplitter;
import org.onap.dcae.analytics.web.dmaap.MrPublisherPreferences;
import org.onap.dcae.analytics.web.dmaap.MrSubscriberPollingAdvice;
import org.onap.dcae.analytics.web.dmaap.MrSubscriberPreferences;
import org.onap.dcae.analytics.web.dmaap.MrTriggerMessageProvider;
import org.onap.dcae.analytics.web.http.HttpClientPreferencesCustomizer;
import org.onap.dcae.analytics.web.util.AnalyticsWebUtils;
import org.springframework.boot.web.client.RestTemplateBuilder;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Import;
import org.springframework.context.annotation.Profile;
import org.springframework.http.HttpMethod;
import org.springframework.integration.channel.DirectChannel;
import org.springframework.integration.channel.QueueChannel;
import org.springframework.integration.core.MessageSource;
import org.springframework.integration.dsl.IntegrationFlow;
import org.springframework.integration.dsl.IntegrationFlows;
import org.springframework.integration.dsl.MessageChannels;
import org.springframework.integration.endpoint.MethodInvokingMessageSource;
import org.springframework.integration.handler.GenericHandler;
import org.springframework.integration.handler.advice.RequestHandlerRetryAdvice;
import org.springframework.integration.http.dsl.Http;
import org.springframework.integration.scheduling.PollerMetadata;
import org.springframework.integration.store.BasicMessageGroupStore;
import org.springframework.integration.store.MessageGroupQueue;
import org.springframework.integration.support.MessageBuilder;
import org.springframework.messaging.MessageHeaders;
import org.springframework.web.client.RestTemplate;
import com.fasterxml.jackson.databind.ObjectMapper;
/**
* @author Rajiv Singla
*/
@Configuration
@Import(value = {DmaapPollerConfig.class, DmaapRetryConfig.class})
@Profile(AnalyticsProfile.DMAAP_PROFILE_NAME)
public class DmaapMrConfig {
private static final String[] DMAAP_MAPPED_REQUEST_HEADERS =
DmaapMrConstants.getDmaapmappedHeaders().toArray(new String[DmaapMrConstants.getDmaapmappedHeaders().size()]);
@Bean(name = DmaapMrConstants.DMAAP_MR_SUBSCRIBER_OUTPUT_CHANNEL_NAME)
public QueueChannel mrSubscriberOutputChannel(final BasicMessageGroupStore basicMessageGroupStore) {
return MessageChannels.queue(new MessageGroupQueue(basicMessageGroupStore,
DmaapMrConstants.DMAAP_MR_SUBSCRIBER_OUTPUT_MESSAGE_STORE_GROUP_ID)).get();
}
@Bean(name = DmaapMrConstants.DMAAP_MR_PUBLISHER_INPUT_CHANNEL)
public DirectChannel mrPublisherInputChannel() {
return MessageChannels.direct().get();
}
@Bean
public RestTemplate mrSubscriberRestTemplate(final MrSubscriberPreferences mrSubscriberPreferences,
final RestTemplateBuilder restTemplateBuilder) {
return restTemplateBuilder
.additionalCustomizers(new HttpClientPreferencesCustomizer<>(mrSubscriberPreferences))
.build();
}
@Bean
public RestTemplate mrPublisherRestTemplate(final MrPublisherPreferences mrPublisherPreferences,
final RestTemplateBuilder restTemplateBuilder) {
return restTemplateBuilder
.additionalCustomizers(new HttpClientPreferencesCustomizer<>(mrPublisherPreferences))
.build();
}
@Bean
public MrMessageSplitter mrMessageSplitter(final ObjectMapper objectMapper,
final Integer processingBatchSize) {
final Integer batchSize = processingBatchSize != null ? processingBatchSize :
DmaapMrConstants.SUBSCRIBER_DEFAULT_PROCESSING_BATCH_SIZE;
return new MrMessageSplitter(objectMapper, batchSize);
}
@Bean
public MrTriggerMessageProvider mrTriggerMessageProvider(
final MrSubscriberPreferences mrSubscriberPreferences) {
return new MrTriggerMessageProvider(mrSubscriberPreferences);
}
@Bean
public MessageSource mrMessageSource(final MrTriggerMessageProvider mrTriggerMessageProvider) {
final MethodInvokingMessageSource source = new MethodInvokingMessageSource();
source.setObject(mrTriggerMessageProvider);
source.setMethodName(MrTriggerMessageProvider.TRIGGER_METHOD_NAME);
return source;
}
@Bean
public IntegrationFlow mrSubscriberFlow(final PollerMetadata pollerMetadata,
final RestTemplate mrSubscriberRestTemplate,
final MessageSource mrMessageSource,
final QueueChannel mrSubscriberOutputChannel,
final MrMessageSplitter mrMessageSplitter,
final MrSubscriberPollingAdvice mrSubscriberPollingAdvice) {
return IntegrationFlows.from(mrMessageSource, c -> c.poller(pollerMetadata))
.handle(Http.outboundGateway(m -> String.class.cast(m.getPayload()), mrSubscriberRestTemplate)
.mappedRequestHeaders(DMAAP_MAPPED_REQUEST_HEADERS)
.httpMethod(HttpMethod.GET)
.expectedResponseType(String.class), c -> c.advice(mrSubscriberPollingAdvice))
.split(mrMessageSplitter)
.channel(mrSubscriberOutputChannel)
.get();
}
@Bean
public IntegrationFlow mrPublisherFlow(final MrPublisherPreferences mrPublisherPreferences,
final RestTemplate mrPublisherRestTemplate,
final DirectChannel mrPublisherInputChannel,
final RequestHandlerRetryAdvice requestHandlerRetryAdvice) {
return IntegrationFlows.from(mrPublisherInputChannel)
.handle(Http.outboundGateway(mrPublisherPreferences.getRequestURL(), mrPublisherRestTemplate)
.mappedRequestHeaders(DMAAP_MAPPED_REQUEST_HEADERS)
.httpMethod(HttpMethod.POST)
.extractPayload(true)
.expectedResponseType(String.class), c -> c.advice(requestHandlerRetryAdvice))
.handle(new GenericHandler<String>() {
@Override
public Object handle(String payload, MessageHeaders headers) {
return MessageBuilder.withPayload(payload).copyHeaders(headers)
.setHeader(AnalyticsHttpConstants.REQUEST_END_TS_HEADER_KEY,
AnalyticsWebUtils.CREATION_TIMESTAMP_SUPPLIER.get()).build();
}
})
.channel(DmaapMrConstants.DMAAP_MR_PUBLISHER_OUTPUT_CHANNEL)
.get();
}
}
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