1 files changed, 159 insertions, 0 deletions
diff --git a/dcae-analytics/dcae-analytics-web/src/main/java/org/onap/dcae/analytics/web/config/DmaapMrConfig.java b/dcae-analytics/dcae-analytics-web/src/main/java/org/onap/dcae/analytics/web/config/DmaapMrConfig.java
new file mode 100644
index 0000000..97fdcc5
--- /dev/null
+++ b/dcae-analytics/dcae-analytics-web/src/main/java/org/onap/dcae/analytics/web/config/DmaapMrConfig.java
@@ -0,0 +1,159 @@
+/*
+ * ================================================================================
+ * 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.web.config;
+
+import com.fasterxml.jackson.databind.ObjectMapper;
+
+import java.util.Map;
+
+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.channel.MessageChannels;
+import org.springframework.integration.endpoint.MethodInvokingMessageSource;
+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.web.client.RestTemplate;
+
+/**
+ * @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.DMAAP_MAPPED_HEADERS.toArray(new String[DmaapMrConstants.DMAAP_MAPPED_HEADERS.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))
+                // add end timestamp
+                .handle((String p, Map<String, Object> headers) ->
+                        MessageBuilder.withPayload(p).copyHeaders(headers)
+                                .setHeader(AnalyticsHttpConstants.REQUEST_END_TS_HEADER_KEY,
+                                        AnalyticsWebUtils.CREATION_TIMESTAMP_SUPPLIER.get()).build()
+                )
+                .channel(DmaapMrConstants.DMAAP_MR_PUBLISHER_OUTPUT_CHANNEL)
+                .get();
+    }
+
+}