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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.nats.service
import io.nats.client.Nats
import io.nats.client.Options
import io.nats.streaming.NatsStreaming
import io.nats.streaming.StreamingConnection
import org.onap.ccsdk.cds.blueprintsprocessor.nats.TokenAuthNatsConnectionProperties
import org.onap.ccsdk.cds.controllerblueprints.core.logger
import org.onap.ccsdk.cds.controllerblueprints.core.splitCommaAsList
open class TokenAuthNatsService(private val natsConnectionProperties: TokenAuthNatsConnectionProperties) :
BlueprintNatsService {
private val log = logger(TokenAuthNatsService::class)
lateinit var streamingConnection: StreamingConnection
override suspend fun connection(): StreamingConnection {
if (!::streamingConnection.isInitialized) {
log.info(
"NATS connection requesting for cluster(${natsConnectionProperties.clusterId}) with" +
"clientId(${natsConnectionProperties.clientId})"
)
val serverList = natsConnectionProperties.host.splitCommaAsList()
val options = Options.Builder()
.connectionName(natsConnectionProperties.clientId)
.servers(serverList.toTypedArray())
.token(natsConnectionProperties.token.toCharArray())
.build()
val natsConnection = Nats.connect(options)
val streamingOptions = io.nats.streaming.Options.Builder().natsConn(natsConnection).build()
streamingConnection = NatsStreaming.connect(
natsConnectionProperties.clusterId,
natsConnectionProperties.clientId, streamingOptions
)
}
return streamingConnection
}
}
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