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/*
* ================================================================================
* Copyright (c) 2018 AT&T 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.tca.web.config;
import static org.onap.dcae.analytics.model.AnalyticsHttpConstants.REQUEST_ID_HEADER_KEY;
import static org.onap.dcae.analytics.model.AnalyticsHttpConstants.REQUEST_TRANSACTION_ID_HEADER_KEY;
import java.util.List;
import java.util.Map;
import org.onap.dcae.analytics.model.AnalyticsProfile;
import org.onap.dcae.analytics.model.DmaapMrConstants;
import org.onap.dcae.analytics.tca.web.TcaAppProperties;
import org.onap.dcae.analytics.tca.web.domain.TcaPolicyWrapper;
import org.onap.dcae.analytics.tca.web.integration.TcaAlertTransformer;
import org.onap.dcae.analytics.tca.web.integration.TcaPublisherResponseHandler;
import org.onap.dcae.analytics.tca.web.service.TcaProcessingService;
import org.onap.dcae.analytics.tca.web.util.function.TcaAppPropsToMrPublisherPrefsFunction;
import org.onap.dcae.analytics.tca.web.util.function.TcaAppPropsToMrSubscriberPrefsFunction;
import org.onap.dcae.analytics.web.dmaap.MrPublisherPreferences;
import org.onap.dcae.analytics.web.dmaap.MrSubscriberPreferences;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Profile;
import org.springframework.integration.channel.DirectChannel;
import org.springframework.integration.channel.NullChannel;
import org.springframework.integration.channel.QueueChannel;
import org.springframework.integration.dsl.IntegrationFlow;
import org.springframework.integration.dsl.IntegrationFlows;
import org.springframework.messaging.MessageHeaders;
/**
* @author Rajiv Singla
*/
@Profile({AnalyticsProfile.DMAAP_PROFILE_NAME})
@Configuration
public class TcaMrConfig {
@Bean
public MrSubscriberPreferences mrSubscriberPreferences(final TcaAppProperties tcaAppProperties) {
return new TcaAppPropsToMrSubscriberPrefsFunction().apply(tcaAppProperties);
}
@Bean
public MrPublisherPreferences mrPublisherPreferences(final TcaAppProperties tcaAppProperties) {
return new TcaAppPropsToMrPublisherPrefsFunction().apply(tcaAppProperties);
}
@Bean
public Integer processingBatchSize(final TcaAppProperties tcaAppProperties) {
return tcaAppProperties.getTca().getProcessingBatchSize();
}
@Bean
public TcaAlertTransformer tcaAlertTransformer(final TcaAppProperties tcaAppProperties) {
return new TcaAlertTransformer(tcaAppProperties);
}
@Bean
public IntegrationFlow tcaMrFlow(final TcaPolicyWrapper tcaPolicyWrapper,
final QueueChannel mrSubscriberOutputChannel,
final DirectChannel mrPublisherInputChannel,
final TcaProcessingService tcaProcessingService,
final TcaAlertTransformer tcaAlertTransformer) {
// get messages from dmaap subscriber channel
return IntegrationFlows.from(mrSubscriberOutputChannel)
// handle incoming message from dmaap
.handle((List<String> cefMessages, Map<String, Object> headers) ->
tcaProcessingService.getTcaExecutionResults(
headers.getOrDefault(REQUEST_ID_HEADER_KEY, headers.get(MessageHeaders.ID)).toString(),
headers.getOrDefault(REQUEST_TRANSACTION_ID_HEADER_KEY, "").toString(),
tcaPolicyWrapper, cefMessages))
// transform tca execution results to alerts - if not alerts are detected terminate further processing
.transform(tcaAlertTransformer, c -> c.requiresReply(false))
// post messages to dmaap publisher input channel
.channel(mrPublisherInputChannel)
.get();
}
@Bean
public TcaPublisherResponseHandler tcaPublisherResponseHandler(final TcaAppProperties tcaAppProperties) {
return new TcaPublisherResponseHandler(tcaAppProperties);
}
@Bean
public IntegrationFlow tcaPublisherResponseFlow(final TcaPublisherResponseHandler tcaPublisherResponseHandler) {
return IntegrationFlows.from(DmaapMrConstants.DMAAP_MR_PUBLISHER_OUTPUT_CHANNEL)
// log response from dmaap publisher output channel
.handle(tcaPublisherResponseHandler)
// finish processing
.channel(new NullChannel())
.get();
}
}
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