com.datamountaineer.streamreactor.connect.hazelcast.HazelCastConnection.scala Maven / Gradle / Ivy

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/*
 * Copyright 2017 Datamountaineer.
 *
 * 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 com.datamountaineer.streamreactor.connect.hazelcast

import java.net.URI
import java.util.{Properties, UUID}
import javax.cache.{CacheManager, Caching}

import com.datamountaineer.streamreactor.connect.hazelcast.config.{HazelCastConnectionConfig, HazelCastSocketConfig}
import com.hazelcast.cache.HazelcastCachingProvider
import com.hazelcast.client.HazelcastClient
import com.hazelcast.client.config.{ClientConfig, ClientNetworkConfig, SocketOptions}
import com.hazelcast.config.GroupConfig
import com.hazelcast.core.HazelcastInstance

import scala.collection.JavaConversions._

/**
  * Created by [email protected] on 10/08/16. 
  * stream-reactor
  */
object HazelCastConnection {
  def buildClient(config: HazelCastConnectionConfig): HazelcastInstance = {
   val clientConfig = new ClientConfig
   val networkConfig = clientConfig.getNetworkConfig
   networkConfig.setAddresses(config.members.toList)
   val groupConfig = new GroupConfig(config.group, config.pass)
   clientConfig.setGroupConfig(groupConfig)
   buildSocketOptions(networkConfig, config.socketConfig)
   clientConfig.setInstanceName(config.group + "-kafka-connect-" + UUID.randomUUID().toString)
   HazelcastClient.newHazelcastClient(clientConfig)
  }

  private def buildSocketOptions(clientNetworkConfig: ClientNetworkConfig, socketConfig: HazelCastSocketConfig): SocketOptions = {
   val socketOptions = clientNetworkConfig.getSocketOptions
   socketOptions.setKeepAlive(socketConfig.keepAlive)
   socketOptions.setTcpNoDelay(socketConfig.tcpNoDelay)
   socketOptions.setReuseAddress(socketConfig.reuseAddress)
   socketOptions.setLingerSeconds(socketConfig.lingerSeconds)
   socketOptions.setBufferSize(socketConfig.bufferSize)
   socketOptions
  }

  def getCacheManager(client: HazelcastInstance, name: String) : CacheManager = {
    val instanceName = client.getName()
    val cachingProvider = Caching.getCachingProvider()

    // Create Properties instance pointing to a named HazelcastInstance
    val properties = new Properties()
    properties.setProperty(HazelcastCachingProvider.HAZELCAST_INSTANCE_NAME, instanceName)
    val cacheManagerName = new URI(name )
    val cacheManager = cachingProvider.getCacheManager(cacheManagerName, null, properties )
    cacheManager
  }
}