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Diffstat (limited to 'dcae-analytics/dcae-analytics-web/src/main/java/org/onap/dcae/analytics/web/dmaap/MrTriggerMessageProvider.java')
-rw-r--r-- | dcae-analytics/dcae-analytics-web/src/main/java/org/onap/dcae/analytics/web/dmaap/MrTriggerMessageProvider.java | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/dcae-analytics/dcae-analytics-web/src/main/java/org/onap/dcae/analytics/web/dmaap/MrTriggerMessageProvider.java b/dcae-analytics/dcae-analytics-web/src/main/java/org/onap/dcae/analytics/web/dmaap/MrTriggerMessageProvider.java new file mode 100644 index 0000000..183957d --- /dev/null +++ b/dcae-analytics/dcae-analytics-web/src/main/java/org/onap/dcae/analytics/web/dmaap/MrTriggerMessageProvider.java @@ -0,0 +1,72 @@ +/* + * ================================================================================ + * 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.dmaap; + + +import java.net.URL; +import java.util.List; +import java.util.function.Supplier; + +import org.onap.dcae.analytics.model.AnalyticsHttpConstants; +import org.onap.dcae.analytics.model.util.supplier.UnboundedSupplier; +import org.onap.dcae.analytics.web.util.AnalyticsWebUtils; +import org.onap.dcae.analytics.web.util.function.MrSubscriberURLFunction; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; +import org.springframework.integration.support.MessageBuilder; +import org.springframework.messaging.Message; + +/** + * Provides DMaaP MR Subscriber Trigger Message + * + * @author Rajiv Singla + */ +public class MrTriggerMessageProvider { + + private static final Logger logger = LoggerFactory.getLogger(MrTriggerMessageProvider.class); + + public static final String TRIGGER_METHOD_NAME = "getTriggerMessage"; + + private final Supplier<URL> subscriberUrlSupplier; + + public MrTriggerMessageProvider(final MrSubscriberPreferences subscriberPreferences) { + final List<URL> urls = new MrSubscriberURLFunction().apply(subscriberPreferences); + subscriberUrlSupplier = new UnboundedSupplier<>(urls.toArray(new URL[urls.size()])); + } + + /** + * DMaaP MR subscriber trigger message + * + * @return dmaap mr subscriber trigger message + */ + public Message<String> getTriggerMessage() { + final String requestId = AnalyticsWebUtils.REQUEST_ID_SUPPLIER.get(); + final String transactionId = AnalyticsWebUtils.RANDOM_ID_SUPPLIER.get(); + final String beginTimestamp = AnalyticsWebUtils.CREATION_TIMESTAMP_SUPPLIER.get(); + logger.debug("Request Id: {}. Transaction Id: {}. Begin TS: {}. Starting new DMaaP MR Subscriber poll.", + requestId, transactionId, beginTimestamp); + return MessageBuilder + .withPayload(subscriberUrlSupplier.get().toString()) + .setHeader(AnalyticsHttpConstants.REQUEST_ID_HEADER_KEY, requestId) + .setHeader(AnalyticsHttpConstants.REQUEST_TRANSACTION_ID_HEADER_KEY, transactionId) + .setHeader(AnalyticsHttpConstants.REQUEST_BEGIN_TS_HEADER_KEY, beginTimestamp) + .build(); + } +} |