2 * ============LICENSE_START=======================================================
3 * dcaegen2-collectors-veshv
4 * ================================================================================
5 * Copyright (C) 2018 NOKIA
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
11 * http://www.apache.org/licenses/LICENSE-2.0
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=========================================================
20 package org.onap.dcae.collectors.veshv.simulators.dcaeapp.kafka
22 import reactor.core.publisher.Mono
23 import reactor.kafka.receiver.ReceiverRecord
26 * @author Piotr Jaszczyk <piotr.jaszczyk@nokia.com>
30 class ConsumerState(val msgCount: Long, val lastKey: ByteArray?, val lastValue: ByteArray?)
32 interface ConsumerStateProvider {
33 fun currentState(): Mono<ConsumerState>
36 class Consumer : ConsumerStateProvider {
37 private var msgCount = 0L
38 private var lastKey: ByteArray? = null
39 private var lastValue: ByteArray? = null
41 override fun currentState(): Mono<ConsumerState> = Mono.create { sink ->
42 val state = synchronized(this) {
43 ConsumerState(msgCount, lastKey, lastValue)
48 fun update(record: ReceiverRecord<ByteArray, ByteArray>) {
51 lastKey = record.key()
52 lastValue = record.value()