| /* |
| * Copyright 2015-2016 IBM Corporation |
| * |
| * 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 whisk.core.dispatcher.test |
| |
| import java.util.ArrayList |
| import java.util.concurrent.LinkedBlockingQueue |
| |
| import scala.collection.JavaConversions.asScalaBuffer |
| import scala.concurrent.Future |
| import scala.concurrent.duration.Duration |
| |
| import org.apache.kafka.clients.producer.RecordMetadata |
| import org.apache.kafka.common.TopicPartition |
| import org.apache.kafka.common.record.Record |
| |
| import whisk.common.Counter |
| import whisk.common.Logging |
| import whisk.core.connector.Message |
| import whisk.core.connector.MessageConsumer |
| import whisk.core.connector.MessageProducer |
| |
| class TestConnector( |
| topic: String, |
| override val maxPeek: Int, |
| allowMoreThanMax: Boolean) |
| extends MessageConsumer |
| with Logging { |
| |
| override def peek(duration: Duration) = { |
| val msgs = new ArrayList[Message] |
| queue.drainTo(msgs, if (allowMoreThanMax) Int.MaxValue else maxPeek) |
| |
| msgs map { m => |
| offset += 1 |
| (topic, -1, offset, m.serialize.getBytes) |
| } |
| } |
| |
| override def commit() = { |
| if (throwCommitException) { |
| throw new Exception("commit failed") |
| } else { |
| // nothing to do |
| } |
| } |
| |
| override def onMessage(process: (String, Int, Long, Array[Byte]) => Unit): Unit = { |
| new Thread { |
| override def run() = while (!closed) { |
| val msg = queue.take() |
| info(this, s"received message for '$topic'") |
| process(topic, -1, -1, msg.serialize.getBytes) |
| Thread.sleep(100) // let producer get in a send if any |
| } |
| }.start |
| } |
| |
| def occupancy = queue.size |
| |
| def send(msg: Message): Future[RecordMetadata] = { |
| producer.send(topic, msg) |
| } |
| |
| def close() = { |
| closed = true |
| producer.close() |
| } |
| |
| private val producer = new MessageProducer { |
| def send(topic: String, msg: Message): Future[RecordMetadata] = { |
| if (queue.offer(msg)) { |
| info(this, s"put: $msg") |
| Future.successful(new RecordMetadata(new TopicPartition(topic, 0), 0, queue.size, Record.NO_TIMESTAMP, -1, -1, -1)) |
| } else { |
| error(this, s"put failed: $msg") |
| Future.failed(new IllegalStateException("failed to write msg")) |
| } |
| } |
| def close() = {} |
| def sentCount() = counter.next() |
| val counter = new Counter() |
| } |
| |
| protected[test] var throwCommitException = false |
| private val queue = new LinkedBlockingQueue[Message]() |
| @volatile private var closed = false |
| private var offset = -1L |
| } |