com.thing2x.smqd.plugin.Bridge.scala Maven / Gradle / Ivy
// Copyright 2018 UANGEL
//
// 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.thing2x.smqd.plugin
import akka.actor.ActorRef
import com.thing2x.smqd.{FilterPath, LifeCycle, TopicPath}
import com.typesafe.scalalogging.StrictLogging
// 2018. 7. 7. - Created by Kwon, Yeong Eon
trait Bridge extends LifeCycle with StrictLogging with Ordered[Bridge] {
def filterPath: FilterPath
def driver: BridgeDriver
def index: Long
override def compare(that: Bridge): Int = this.index.compareTo(that.index)
override def toString: String = new StringBuilder("Bridge '")
.append(driver.name).append("' ")
.append("[").append(index).append("] ")
.append(filterPath.toString)
.toString
}
abstract class AbstractBridge(val driver: BridgeDriver, val index: Long, val filterPath: FilterPath)
extends Bridge with StrictLogging {
private var subr: Option[ActorRef] = None
override def start(): Unit = {
subr = Some(driver.smqdInstance.subscribe(filterPath, bridge _))
logger.info(s"Bridge '${filterPath.toString}' started.")
}
override def stop(): Unit = {
subr match {
case Some(actor) =>
driver.smqdInstance.unsubscribe(filterPath, actor)
case _ =>
}
logger.info(s"Bridge '${filterPath.toString}' stopped.")
}
def bridge(topic: TopicPath, msg: Any): Unit
}