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authorkjaniak <kornel.janiak@nokia.com>2019-06-19 08:39:33 +0200
committerkjaniak <kornel.janiak@nokia.com>2019-06-25 15:52:13 +0200
commit7808010c1a18531ee9b618f934d31816193cac38 (patch)
tree3680678be6f909054ff3a022aeda35b1ee5e47ac /sources/hv-collector-kafka/src
parente52b0ef6c1c3b502f840f08a17b6594e17957db1 (diff)
Implement message counting in consumer
Issue-ID: DCAEGEN2-1635 Change-Id: I2666de7bad27052d9cefa0f687ad0772d4c9a95d Signed-off-by: kjaniak <kornel.janiak@nokia.com>
Diffstat (limited to 'sources/hv-collector-kafka/src')
-rw-r--r--sources/hv-collector-kafka/src/main/kotlin/org/onap/dcae/collectors/veshv/kafka/api/ConsumerFactory.kt43
-rw-r--r--sources/hv-collector-kafka/src/main/kotlin/org/onap/dcae/collectors/veshv/kafka/api/KafkaConsumer.kt27
-rw-r--r--sources/hv-collector-kafka/src/main/kotlin/org/onap/dcae/collectors/veshv/kafka/impl/KafkaSource.kt78
-rw-r--r--sources/hv-collector-kafka/src/test/kotlin/org/onap/dcae/collectors/veshv/kafka/api/ConsumerFactoryTest.kt64
-rw-r--r--sources/hv-collector-kafka/src/test/kotlin/org/onap/dcae/collectors/veshv/kafka/impl/KafkaSourceTest.kt54
5 files changed, 266 insertions, 0 deletions
diff --git a/sources/hv-collector-kafka/src/main/kotlin/org/onap/dcae/collectors/veshv/kafka/api/ConsumerFactory.kt b/sources/hv-collector-kafka/src/main/kotlin/org/onap/dcae/collectors/veshv/kafka/api/ConsumerFactory.kt
new file mode 100644
index 00000000..88eb8cec
--- /dev/null
+++ b/sources/hv-collector-kafka/src/main/kotlin/org/onap/dcae/collectors/veshv/kafka/api/ConsumerFactory.kt
@@ -0,0 +1,43 @@
+/*
+ * ============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.kafka.api
+
+import org.onap.dcae.collectors.veshv.kafka.impl.KafkaSource
+import org.onap.dcae.collectors.veshv.utils.logging.Logger
+
+typealias ConsumerProvider = () -> KafkaConsumer
+
+object ConsumerFactory {
+ private val logger = Logger(ConsumerFactory::class)
+
+ fun createConsumersForTopics(kafkaBootstrapServers: String,
+ kafkaTopics: Set<String>,
+ consumerProvider: ConsumerProvider): Map<String, KafkaConsumer> =
+ KafkaSource.create(kafkaBootstrapServers, kafkaTopics).let { kafkaSource ->
+ val topicToConsumer = kafkaTopics.associate { it to consumerProvider() }
+ kafkaSource.start()
+ .map {
+ val topic = it.topic()
+ topicToConsumer.get(topic)?.update(it)
+ ?: logger.warn { "No consumer configured for topic $topic" }
+ }.subscribe()
+ topicToConsumer
+ }
+}
diff --git a/sources/hv-collector-kafka/src/main/kotlin/org/onap/dcae/collectors/veshv/kafka/api/KafkaConsumer.kt b/sources/hv-collector-kafka/src/main/kotlin/org/onap/dcae/collectors/veshv/kafka/api/KafkaConsumer.kt
new file mode 100644
index 00000000..ae797b6e
--- /dev/null
+++ b/sources/hv-collector-kafka/src/main/kotlin/org/onap/dcae/collectors/veshv/kafka/api/KafkaConsumer.kt
@@ -0,0 +1,27 @@
+/*
+ * ============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.kafka.api
+
+import org.apache.kafka.clients.consumer.ConsumerRecord
+
+interface KafkaConsumer {
+ fun reset()
+ fun update(record: ConsumerRecord<ByteArray, ByteArray>)
+}
diff --git a/sources/hv-collector-kafka/src/main/kotlin/org/onap/dcae/collectors/veshv/kafka/impl/KafkaSource.kt b/sources/hv-collector-kafka/src/main/kotlin/org/onap/dcae/collectors/veshv/kafka/impl/KafkaSource.kt
new file mode 100644
index 00000000..98934b0d
--- /dev/null
+++ b/sources/hv-collector-kafka/src/main/kotlin/org/onap/dcae/collectors/veshv/kafka/impl/KafkaSource.kt
@@ -0,0 +1,78 @@
+/*
+ * ============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.kafka.impl
+
+import org.apache.kafka.clients.CommonClientConfigs
+import org.apache.kafka.clients.consumer.ConsumerConfig
+import org.apache.kafka.common.config.SaslConfigs
+import org.apache.kafka.common.security.auth.SecurityProtocol
+import org.apache.kafka.common.security.plain.internals.PlainSaslServer.PLAIN_MECHANISM
+import org.apache.kafka.common.serialization.ByteArrayDeserializer
+import org.onap.dcae.collectors.veshv.utils.logging.Logger
+import reactor.core.publisher.Flux
+import reactor.kafka.receiver.KafkaReceiver
+import reactor.kafka.receiver.ReceiverOptions
+import reactor.kafka.receiver.ReceiverRecord
+
+/**
+ * @author Piotr Jaszczyk <piotr.jaszczyk@nokia.com>
+ * @since May 2018
+ */
+internal class KafkaSource(private val receiver: KafkaReceiver<ByteArray, ByteArray>) {
+ fun start(): Flux<ReceiverRecord<ByteArray, ByteArray>> =
+ receiver.receive()
+ .doOnNext { it.receiverOffset().acknowledge() }
+ .also { logger.info { "Started Kafka source" } }
+
+ companion object {
+ private val logger = Logger(KafkaSource::class)
+
+ private const val LOGIN_MODULE_CLASS = "org.apache.kafka.common.security.plain.PlainLoginModule"
+ private const val USERNAME = "admin"
+ private const val PASSWORD = "admin_secret"
+ private const val JAAS_CONFIG = "$LOGIN_MODULE_CLASS required username=$USERNAME password=$PASSWORD;"
+ private val SASL_PLAINTEXT = (SecurityProtocol.SASL_PLAINTEXT as Enum<SecurityProtocol>).name
+
+ fun create(bootstrapServers: String, topics: Set<String>) =
+ KafkaSource(KafkaReceiver.create(createReceiverOptions(bootstrapServers, topics)))
+
+ fun createReceiverOptions(bootstrapServers: String,
+ topics: Set<String>): ReceiverOptions<ByteArray, ByteArray>? {
+ val props = mapOf<String, Any>(
+ ConsumerConfig.BOOTSTRAP_SERVERS_CONFIG to bootstrapServers,
+ ConsumerConfig.CLIENT_ID_CONFIG to "hv-collector-consumer",
+ ConsumerConfig.GROUP_ID_CONFIG to "hv-collector-consumers",
+ ConsumerConfig.KEY_DESERIALIZER_CLASS_CONFIG to ByteArrayDeserializer::class.java,
+ ConsumerConfig.VALUE_DESERIALIZER_CLASS_CONFIG to ByteArrayDeserializer::class.java,
+ ConsumerConfig.AUTO_OFFSET_RESET_CONFIG to "earliest",
+ ConsumerConfig.AUTO_COMMIT_INTERVAL_MS_CONFIG to "3000",
+
+
+ CommonClientConfigs.SECURITY_PROTOCOL_CONFIG to SASL_PLAINTEXT,
+ SaslConfigs.SASL_MECHANISM to PLAIN_MECHANISM,
+ SaslConfigs.SASL_JAAS_CONFIG to JAAS_CONFIG
+ )
+ return ReceiverOptions.create<ByteArray, ByteArray>(props)
+ .addAssignListener { partitions -> logger.debug { "Partitions assigned $partitions" } }
+ .addRevokeListener { partitions -> logger.debug { "Partitions revoked $partitions" } }
+ .subscription(topics)
+ }
+ }
+}
diff --git a/sources/hv-collector-kafka/src/test/kotlin/org/onap/dcae/collectors/veshv/kafka/api/ConsumerFactoryTest.kt b/sources/hv-collector-kafka/src/test/kotlin/org/onap/dcae/collectors/veshv/kafka/api/ConsumerFactoryTest.kt
new file mode 100644
index 00000000..a8ba4217
--- /dev/null
+++ b/sources/hv-collector-kafka/src/test/kotlin/org/onap/dcae/collectors/veshv/kafka/api/ConsumerFactoryTest.kt
@@ -0,0 +1,64 @@
+/*
+ * ============LICENSE_START=======================================================
+ * dcaegen2-collectors-veshv
+ * ================================================================================
+ * Copyright (C) 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.kafka.api
+
+import com.nhaarman.mockitokotlin2.mock
+import org.assertj.core.api.Assertions.assertThat
+import org.assertj.core.api.Assertions.entry
+import org.jetbrains.spek.api.Spek
+import org.jetbrains.spek.api.dsl.describe
+import org.jetbrains.spek.api.dsl.given
+import org.jetbrains.spek.api.dsl.it
+import org.jetbrains.spek.api.dsl.on
+
+object ConsumerFactoryTest : Spek({
+ describe("ConsumerFactory") {
+ val kafkaBootstrapServers = "0.0.0.0:40,0.0.0.1:41"
+ given("consumer provider"){
+ val mockedKafkaConsumer = mock<KafkaConsumer>()
+ val consumerProvider = { mockedKafkaConsumer }
+ on("creation of consumer") {
+ val kafkaTopics = setOf("topic1", "topic2")
+ val consumer = ConsumerFactory.createConsumersForTopics(
+ kafkaBootstrapServers,
+ kafkaTopics,
+ consumerProvider)
+ it("should create consumer"){
+ assertThat(consumer).isNotEmpty.hasSize(2)
+ assertThat(consumer).contains(entry("topic1", mockedKafkaConsumer),
+ entry("topic2", mockedKafkaConsumer))
+ }
+ }
+ on("empty kafkaTopics set"){
+ val emptyKafkaTopics = emptySet<String>()
+ val consumer = ConsumerFactory.createConsumersForTopics(
+ kafkaBootstrapServers,
+ emptyKafkaTopics,
+ consumerProvider)
+
+ it("should not create consumer"){
+ assertThat(consumer).isEmpty()
+ }
+ }
+ }
+
+
+ }
+}) \ No newline at end of file
diff --git a/sources/hv-collector-kafka/src/test/kotlin/org/onap/dcae/collectors/veshv/kafka/impl/KafkaSourceTest.kt b/sources/hv-collector-kafka/src/test/kotlin/org/onap/dcae/collectors/veshv/kafka/impl/KafkaSourceTest.kt
new file mode 100644
index 00000000..43650f34
--- /dev/null
+++ b/sources/hv-collector-kafka/src/test/kotlin/org/onap/dcae/collectors/veshv/kafka/impl/KafkaSourceTest.kt
@@ -0,0 +1,54 @@
+/*
+ * ============LICENSE_START=======================================================
+ * dcaegen2-collectors-veshv
+ * ================================================================================
+ * Copyright (C) 2018 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.kafka.impl
+
+import org.apache.kafka.clients.consumer.ConsumerConfig
+import org.apache.kafka.common.serialization.ByteArrayDeserializer
+import org.assertj.core.api.Assertions.assertThat
+import org.jetbrains.spek.api.Spek
+import org.jetbrains.spek.api.dsl.describe
+import org.jetbrains.spek.api.dsl.it
+
+/**
+ * @author Piotr Jaszczyk <piotr.jaszczyk></piotr.jaszczyk>@nokia.com>
+ * @since August 2018
+ */
+internal class KafkaSourceTest : Spek({
+ val servers = "kafka1:9080,kafka2:9080"
+ val topics = setOf("topic1", "topic2")
+
+ describe("receiver options") {
+ val options = KafkaSource.createReceiverOptions(servers, topics)!!.toImmutable()
+
+ fun verifyProperty(key: String, expectedValue: Any) {
+ it("should have $key option set") {
+ assertThat(options.consumerProperty(key))
+ .isEqualTo(expectedValue)
+ }
+ }
+
+ verifyProperty(ConsumerConfig.BOOTSTRAP_SERVERS_CONFIG, servers)
+ verifyProperty(ConsumerConfig.CLIENT_ID_CONFIG, "hv-collector-consumer")
+ verifyProperty(ConsumerConfig.GROUP_ID_CONFIG, "hv-collector-consumers")
+ verifyProperty(ConsumerConfig.KEY_DESERIALIZER_CLASS_CONFIG, ByteArrayDeserializer::class.java)
+ verifyProperty(ConsumerConfig.VALUE_DESERIALIZER_CLASS_CONFIG, ByteArrayDeserializer::class.java)
+ verifyProperty(ConsumerConfig.AUTO_OFFSET_RESET_CONFIG, "earliest")
+ }
+}) \ No newline at end of file