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/*
* Copyright © 2018-2019 AT&T Intellectual Property.
*
* 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.
*/
package org.onap.ccsdk.cds.blueprintsprocessor.message.service
import org.apache.kafka.common.serialization.Deserializer
import org.apache.kafka.common.serialization.Serde
import org.apache.kafka.common.serialization.Serializer
import org.apache.kafka.streams.processor.Processor
import org.apache.kafka.streams.processor.ProcessorContext
import org.apache.kafka.streams.state.KeyValueStore
import org.onap.ccsdk.cds.controllerblueprints.core.BluePrintProcessorException
import org.onap.ccsdk.cds.controllerblueprints.core.asJsonString
import org.onap.ccsdk.cds.controllerblueprints.core.logger
import org.onap.ccsdk.cds.controllerblueprints.core.utils.JacksonUtils
import java.io.Serializable
import java.nio.charset.Charset
import java.util.UUID
class PriorityMessage : Serializable {
lateinit var id: String
lateinit var requestMessage: String
}
open class PriorityMessageSerde : Serde<PriorityMessage> {
override fun configure(configs: MutableMap<String, *>?, isKey: Boolean) {
}
override fun close() {
}
override fun deserializer(): Deserializer<PriorityMessage> {
return object : Deserializer<PriorityMessage> {
override fun deserialize(topic: String, data: ByteArray): PriorityMessage {
return JacksonUtils.readValue(String(data), PriorityMessage::class.java)
?: throw BluePrintProcessorException("failed to convert")
}
override fun configure(configs: MutableMap<String, *>?, isKey: Boolean) {
}
override fun close() {
}
}
}
override fun serializer(): Serializer<PriorityMessage> {
return object : Serializer<PriorityMessage> {
override fun configure(configs: MutableMap<String, *>?, isKey: Boolean) {
}
override fun serialize(topic: String?, data: PriorityMessage): ByteArray {
return data.asJsonString().toByteArray(Charset.defaultCharset())
}
override fun close() {
}
}
}
}
class FirstProcessor : Processor<ByteArray, ByteArray> {
private val log = logger(FirstProcessor::class)
private lateinit var context: ProcessorContext
private lateinit var kvStore: KeyValueStore<String, PriorityMessage>
override fun process(key: ByteArray, value: ByteArray) {
log.info("First Processor key(${String(key)} : value(${String(value)})")
val newMessage = PriorityMessage().apply {
id = UUID.randomUUID().toString()
requestMessage = String(value)
}
kvStore.put(newMessage.id, newMessage)
this.context.forward(newMessage.id, newMessage)
}
override fun init(context: ProcessorContext) {
log.info("init... ${context.keySerde()}, ${context.valueSerde()}")
this.context = context
this.kvStore = context.getStateStore("PriorityMessageState") as KeyValueStore<String, PriorityMessage>
}
override fun close() {
log.info("Close...")
}
}
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