abstract void dispatch(Object event, Iterator<Subscriber> subscribers);

  /** Implementation of a {@link #perThreadDispatchQueue()} dispatcher. */
  private static final class PerThreadQueuedDispatcher extends Dispatcher {

    // This dispatcher matches the original dispatch behavior of EventBus.

    /** Per-thread queue of events to dispatch. */

 * #enqueue enqueueing} and then {@linkplain #dispatch dispatching} events.
 *
 * <p>The API of this class is designed to make it easy to achieve the following properties
 *
 * <ul>
 *   <li>Multiple events for the same listener are never dispatched concurrently.
 *   <li>Events for the different listeners are dispatched concurrently.
 *   <li>All events for a given listener dispatch on the provided executor.

  private Dispatcher dispatcher;

  public void testPerThreadQueuedDispatcher() {
    dispatcher = Dispatcher.perThreadDispatchQueue();
    dispatcher.dispatch(1, integerSubscribers.iterator());

    assertThat(dispatchedSubscribers)
        .containsExactly(
            i1,
            i2,
            i3, // Integer subscribers are dispatched to first.
            s1,

package mockwebserver3

import java.io.Closeable

/** Handler for mock server requests. */
public abstract class Dispatcher : Closeable {
  /**
   * Returns a response to satisfy `request`. This method may block (for instance, to wait on
   * a CountdownLatch).
   */
  @Throws(InterruptedException::class)
  public abstract fun dispatch(request: RecordedRequest): MockResponse

  /**

    queue.enqueue(incrementingEvent(counters, listener, 3));
    queue.enqueue(incrementingEvent(counters, listener, 4));
    assertEquals(0, counters.size());
    queue.dispatch();
    assertEquals(multiset(listener, 4), counters);
  }

  public void testEnqueueAndDispatch_multipleListeners() {
    Object listener1 = new Object();
    ListenerCallQueue<Object> queue = new ListenerCallQueue<>();

    queue.enqueue(incrementingEvent(counters, listener, 3));
    queue.enqueue(incrementingEvent(counters, listener, 4));
    assertEquals(0, counters.size());
    queue.dispatch();
    assertEquals(multiset(listener, 4), counters);
  }

  public void testEnqueueAndDispatch_multipleListeners() {
    Object listener1 = new Object();
    ListenerCallQueue<Object> queue = new ListenerCallQueue<>();

import java.util.logging.Logger

/**
 * Default dispatcher that processes a script of responses. Populate the script by calling
 * [enqueue].
 */
public open class QueueDispatcher : Dispatcher() {
  protected val responseQueue: BlockingQueue<MockResponse> = LinkedBlockingQueue()
  private var failFastResponse: MockResponse? = null

  @Throws(InterruptedException::class)
  override fun dispatch(request: RecordedRequest): MockResponse {

    val requestsMade = mutableListOf<RecordedRequest>()
    val dispatcher: Dispatcher =
      object : Dispatcher() {
        override fun dispatch(request: RecordedRequest): MockResponse {
          requestsMade.add(request)
          return MockResponse()
        }
      }
    assertThat(requestsMade.size).isEqualTo(0)
    mockWebServer.dispatcher = dispatcher
    val url = mockWebServer.url("/").toUrl()

import okio.Buffer
import okio.ByteString

internal fun Dispatcher.wrap(): mockwebserver3.Dispatcher {
  if (this is QueueDispatcher) return this.delegate

  val delegate = this
  return object : mockwebserver3.Dispatcher() {
    override fun dispatch(request: mockwebserver3.RecordedRequest): mockwebserver3.MockResponse = delegate.dispatch(request.unwrap()).wrap()

```

#### Dispatcher

By default MockWebServer uses a queue to specify a series of responses. Use a
Dispatcher (`import okhttp3.mockwebserver.Dispatcher`) to handle requests using another policy. One natural policy is to
dispatch on the request path.
You can, for example, filter the request instead of using `server.enqueue()`.

### Java
```java
final Dispatcher dispatcher = new Dispatcher() {