1 files changed, 63 insertions, 0 deletions
diff --git a/sources/hv-collector-core/src/main/kotlin/org/onap/dcae/collectors/veshv/impl/adapters/kafka/KafkaSinkFactory.kt b/sources/hv-collector-core/src/main/kotlin/org/onap/dcae/collectors/veshv/impl/adapters/kafka/KafkaSinkFactory.kt
new file mode 100644
index 00000000..9df1af31
--- /dev/null
+++ b/sources/hv-collector-core/src/main/kotlin/org/onap/dcae/collectors/veshv/impl/adapters/kafka/KafkaSinkFactory.kt
@@ -0,0 +1,63 @@
+/*
+ * ============LICENSE_START=======================================================
+ * dcaegen2-collectors-veshv
+ * ================================================================================
+ * Copyright (C) 2018-2019 NOKIA
+ * ================================================================================
+ * 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.collectors.veshv.impl.adapters.kafka
+
+import org.onap.dcae.collectors.veshv.boundary.SinkFactory
+import org.onap.dcae.collectors.veshv.domain.VesMessage
+import org.onap.dcae.collectors.veshv.impl.createKafkaSender
+import org.onap.dcae.collectors.veshv.model.ClientContext
+import org.onap.dcae.collectors.veshv.model.ServiceContext
+import org.onap.dcae.collectors.veshv.utils.logging.Logger
+import org.onap.dcaegen2.services.sdk.model.streams.SinkStream
+import org.onap.ves.VesEventOuterClass.CommonEventHeader
+import reactor.core.publisher.Flux
+import reactor.core.publisher.Mono
+import reactor.core.scheduler.Schedulers
+import reactor.kafka.sender.KafkaSender
+import java.util.Collections.synchronizedMap
+
+/**
+ * @author Piotr Jaszczyk <piotr.jaszczyk@nokia.com>
+ * @since June 2018
+ */
+internal class KafkaSinkFactory : SinkFactory {
+    private val messageSinks = synchronizedMap(
+            mutableMapOf<SinkStream, KafkaSender<CommonEventHeader, VesMessage>>()
+    )
+
+    override fun invoke(stream: SinkStream, ctx: ClientContext) = lazy {
+        messageSinks.computeIfAbsent(stream, ::createKafkaSender).let {
+            KafkaPublisher(it, ctx)
+        }
+    }
+
+    override fun close(): Mono<Void> =
+            Flux.fromIterable(messageSinks.values)
+                    .publishOn(Schedulers.elastic())
+                    .doOnNext(KafkaSender<CommonEventHeader, VesMessage>::close)
+                    .then()
+                    .doOnSuccess {
+                        logger.info(ServiceContext::mdc) { "Message sinks flushed and closed" }
+                    }
+
+    companion object {
+        private val logger = Logger(KafkaSinkFactory::class)
+    }
+}