dcae-analytics/dcae-analytics-tca-web/src/main/java/org/onap/dcae/analytics/tca/web/config/TcaMrConfig.java

   1 /*
   2  * ================================================================================
   3  * Copyright (c) 2018 AT&T Intellectual Property. All rights reserved.
   4  * Copyright (c) 2021 China Mobile Property. All rights reserved.
   5  * Copyright (c) 2021 Nokia Intellectual Property. All rights reserved.
   6  * ================================================================================
   7  * Licensed under the Apache License, Version 2.0 (the "License");
   8  * you may not use this file except in compliance with the License.
   9  * You may obtain a copy of the License at
  10  *
  11  *      http://www.apache.org/licenses/LICENSE-2.0
  12  *
  13  * Unless required by applicable law or agreed to in writing, software
  14  * distributed under the License is distributed on an "AS IS" BASIS,
  15  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  16  * See the License for the specific language governing permissions and
  17  * limitations under the License.
  18  * ============LICENSE_END=========================================================
  19  *
  20  */
  21
  22 package org.onap.dcae.analytics.tca.web.config;
  23
  24 import static org.onap.dcae.analytics.model.AnalyticsHttpConstants.REQUEST_ID_HEADER_KEY;
  25 import static org.onap.dcae.analytics.model.AnalyticsHttpConstants.REQUEST_TRANSACTION_ID_HEADER_KEY;
  26
  27 import java.util.List;
  28 import org.onap.dcae.analytics.model.AnalyticsProfile;
  29 import org.onap.dcae.analytics.model.DmaapMrConstants;
  30 import org.onap.dcae.analytics.tca.web.TcaAppProperties;
  31 import org.onap.dcae.analytics.tca.web.domain.TcaPolicyWrapper;
  32 import org.onap.dcae.analytics.tca.web.integration.TcaAlertTransformer;
  33 import org.onap.dcae.analytics.tca.web.integration.TcaPublisherResponseHandler;
  34 import org.onap.dcae.analytics.tca.web.service.TcaProcessingService;
  35 import org.onap.dcae.analytics.tca.web.util.function.TcaAppPropsToMrPublisherPrefsFunction;
  36 import org.onap.dcae.analytics.tca.web.util.function.TcaAppPropsToMrSubscriberPrefsFunction;
  37 import org.onap.dcae.analytics.web.dmaap.MrPublisherPreferences;
  38 import org.onap.dcae.analytics.web.dmaap.MrSubscriberPreferences;
  39 import org.springframework.context.annotation.Bean;
  40 import org.springframework.context.annotation.Configuration;
  41 import org.springframework.context.annotation.Profile;
  42 import org.springframework.integration.channel.DirectChannel;
  43 import org.springframework.integration.channel.NullChannel;
  44 import org.springframework.integration.channel.QueueChannel;
  45 import org.springframework.integration.dsl.IntegrationFlow;
  46 import org.springframework.integration.dsl.IntegrationFlows;
  47 import org.springframework.integration.handler.GenericHandler;
  48 import org.springframework.messaging.MessageHeaders;
  49
  50 /**
  51  * @author Rajiv Singla
  52  */
  53 @Profile({AnalyticsProfile.DMAAP_PROFILE_NAME})
  54 @Configuration
  55 public class TcaMrConfig {
  56
  57     @Bean
  58     public MrSubscriberPreferences mrSubscriberPreferences(final TcaAppProperties tcaAppProperties) {
  59         return new TcaAppPropsToMrSubscriberPrefsFunction().apply(tcaAppProperties);
  60     }
  61
  62     @Bean
  63     public MrPublisherPreferences mrPublisherPreferences(final TcaAppProperties tcaAppProperties) {
  64         return new TcaAppPropsToMrPublisherPrefsFunction().apply(tcaAppProperties);
  65     }
  66
  67     @Bean
  68     public Integer processingBatchSize(final TcaAppProperties tcaAppProperties) {
  69         return tcaAppProperties.getTca().getProcessingBatchSize();
  70     }
  71
  72     @Bean
  73     public TcaAlertTransformer tcaAlertTransformer(final TcaAppProperties tcaAppProperties) {
  74         return new TcaAlertTransformer(tcaAppProperties);
  75     }
  76
  77     @Bean
  78     public IntegrationFlow tcaMrFlow(final TcaPolicyWrapper tcaPolicyWrapper,
  79                                      final QueueChannel mrSubscriberOutputChannel,
  80                                      final DirectChannel mrPublisherInputChannel,
  81                                      final TcaProcessingService tcaProcessingService,
  82                                      final TcaAlertTransformer tcaAlertTransformer) {
  83         // get messages from dmaap subscriber channel
  84         return IntegrationFlows.from(mrSubscriberOutputChannel)
  85                 // handle incoming message from dmaap
  86                 .handle(new GenericHandler<List<String>>() {
  87                     @Override
  88                     public Object handle(List<String> cefMessages, MessageHeaders headers) {
  89                         return tcaProcessingService.getTcaExecutionResults(
  90                                 headers.getOrDefault(REQUEST_ID_HEADER_KEY, headers.get(MessageHeaders.ID)).toString(),
  91                                 headers.getOrDefault(REQUEST_TRANSACTION_ID_HEADER_KEY, "").toString(),
  92                                 tcaPolicyWrapper, cefMessages);
  93                     }
  94                 })
  95                 // transform tca execution results to alerts - if not alerts are detected terminate further processing
  96                 .transform(tcaAlertTransformer, c -> c.requiresReply(false))
  97                 // post messages to dmaap publisher input channel
  98                 .channel(mrPublisherInputChannel)
  99                 .get();
 100     }
 101
 102
 103     @Bean
 104     public TcaPublisherResponseHandler tcaPublisherResponseHandler(final TcaAppProperties tcaAppProperties) {
 105         return new TcaPublisherResponseHandler(tcaAppProperties);
 106     }
 107
 108     @Bean
 109     public IntegrationFlow tcaPublisherResponseFlow(final TcaPublisherResponseHandler tcaPublisherResponseHandler) {
 110         return IntegrationFlows.from(DmaapMrConstants.DMAAP_MR_PUBLISHER_OUTPUT_CHANNEL)
 111                 // log response from dmaap publisher output channel
 112                 .handle(tcaPublisherResponseHandler)
 113                 // finish processing
 114                 .channel(new NullChannel())
 115                 .get();
 116     }
 117
 118 }