wvlet.airframe.rx.RxBlockingQueue.scala Maven / Gradle / Ivy

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/*
 * 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 wvlet.airframe.rx
import java.util.concurrent.LinkedBlockingQueue

/**
  * Blocking queue implementation for supporting gRPC streaming with Rx
  */
class RxBlockingQueue[A] extends RxSource[A] {
  override def parents: Seq[Rx[_]] = Seq.empty

  private val blockingQueue = new LinkedBlockingQueue[RxEvent]()

  override def add(event: RxEvent): Unit = {
    blockingQueue.add(event)
  }
  override def next: RxEvent = {
    blockingQueue.take()
  }
}