Class/Object

colossus.service

ServiceServer

Related Docs: object ServiceServer | package service

Permalink

abstract class ServiceServer[I, O] extends Controller[I, O] with ServerConnectionHandler

The ServiceServer provides an interface and basic functionality to create a server that processes requests and returns responses over a codec.

A Codec is simply the format in which the data is represented. Http, Redis protocol, Memcached protocl are all examples(and natively supported). It is entirely possible to use an additional Codec by creating a Codec to parse the desired protocol.

Requests can be processed synchronously or asynchronously. The server will ensure that all responses are written back in the order that they are received.

Linear Supertypes
Known Subclasses
Ordering
  1. Alphabetic
  2. By inheritance
Inherited
  1. ServiceServer
  2. ServerConnectionHandler
  3. Controller
  4. OutputController
  5. InputController
  6. MasterController
  7. ConnectionHandler
  8. WorkerItem
  9. AnyRef
  10. Any
  1. Hide All
  2. Show all
Visibility
  1. Public
  2. All

Instance Constructors

  1. new ServiceServer(codec: ServerCodec[I, O], config: ServiceConfig[I, O], worker: WorkerRef)(implicit ex: ExecutionContext, tagDecorator: TagDecorator[I, O] = TagDecorator.default[I,O])

    Permalink

Type Members

  1. case class QueuedItem(item: Output, postWrite: (OutputResult) ⇒ Unit, creationTimeMillis: Long) extends Product with Serializable

    Permalink
    Definition Classes
    OutputController
  2. case class SyncPromise(request: I) extends Product with Serializable

    Permalink

Abstract Value Members

  1. abstract def processFailure(request: I, reason: Throwable): O

    Permalink
    Attributes
    protected
  2. abstract def processRequest(request: I): Callback[O]

    Permalink
    Attributes
    protected
  3. abstract def receivedMessage(message: Any, sender: ActorRef): Unit

    Permalink

    Provides a way to send this WorkerItem a message from an Actor by way of WorkerCommand.Message.

    Provides a way to send this WorkerItem a message from an Actor by way of WorkerCommand.Message.

    message

    The message that was sent

    sender

    The sender who sent the message

    Definition Classes
    WorkerItem

Concrete Value Members

  1. final def !=(arg0: Any): Boolean

    Permalink
    Definition Classes
    AnyRef → Any
  2. final def ##(): Int

    Permalink
    Definition Classes
    AnyRef → Any
  3. final def ==(arg0: Any): Boolean

    Permalink
    Definition Classes
    AnyRef → Any
  4. def addError(err: Throwable, extraTags: TagMap = TagMap.Empty): Unit

    Permalink
  5. final def asInstanceOf[T0]: T0

    Permalink
    Definition Classes
    Any
  6. def binding: Option[WorkerItemBinding]

    Permalink

    When bound to a worker, this contains the [WorkerItemBinding]

    When bound to a worker, this contains the [WorkerItemBinding]

    Definition Classes
    WorkerItem
  7. def boundWorker: Option[WorkerRef]

    Permalink
    Definition Classes
    WorkerItem
  8. implicit val callbackExecutor: CallbackExecutor

    Permalink
  9. def clone(): AnyRef

    Permalink
    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  10. val codec: Codec[O, I]

    Permalink
    Definition Classes
    ControllerMasterController
  11. val concurrentRequests: Local[Counter]

    Permalink
  12. def connected(endpt: WriteEndpoint): Unit

    Permalink

    This handler is called when a Worker new Connection is established.

    This handler is called when a Worker new Connection is established. A Connection can be either an incoming (ie: something to connected to the server), or outgoing(ie: the server connected to a remote system).

    Definition Classes
    ControllerConnectionHandler
  13. def connectionClosed(cause: DisconnectCause): Unit

    Permalink

    Connection was closed on our end, either by a shutdown, or by normal means

    Connection was closed on our end, either by a shutdown, or by normal means

    cause

    why the connection was closed

    Definition Classes
    ServiceServerControllerConnectionHandler
  14. def connectionInfo: Option[ConnectionInfo]

    Permalink

    Returns a read-only trait containing live information about the connection.

    Returns a read-only trait containing live information about the connection.

    Definition Classes
    Controller
  15. def connectionLost(cause: DisconnectError): Unit

    Permalink

    Connection lost is caused by termination, closed, etc

    Connection lost is caused by termination, closed, etc

    cause

    why the connection was lost

    Definition Classes
    ServiceServerControllerConnectionHandler
  16. def connectionTerminated(cause: DisconnectCause): Unit

    Permalink

    Called from Worker when a connection has been terminated either by an error or by normal means.

    Called from Worker when a connection has been terminated either by an error or by normal means.

    cause

    why the connection was terminated

    Definition Classes
    ConnectionHandler
  17. val controllerConfig: ControllerConfig

    Permalink
    Definition Classes
    ControllerMasterController
  18. def currentRequestBufferSize: Int

    Permalink
  19. def disconnect(): Unit

    Permalink
    Definition Classes
    ControllerMasterController
  20. final def eq(arg0: AnyRef): Boolean

    Permalink
    Definition Classes
    AnyRef
  21. def equals(arg0: Any): Boolean

    Permalink
    Definition Classes
    AnyRef → Any
  22. val errors: Local[Rate]

    Permalink
  23. def finalize(): Unit

    Permalink
    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( classOf[java.lang.Throwable] )
  24. final def getClass(): Class[_]

    Permalink
    Definition Classes
    AnyRef → Any
  25. def gracefulDisconnect(): Unit

    Permalink

    Terminate the connection, but allow any outstanding requests to complete (or timeout) before disconnecting

    Terminate the connection, but allow any outstanding requests to complete (or timeout) before disconnecting

    Definition Classes
    ServiceServerController
  26. def hashCode(): Int

    Permalink
    Definition Classes
    AnyRef → Any
  27. def id: Option[Long]

    Permalink
    Definition Classes
    WorkerItem
  28. def idleCheck(period: Duration): Unit

    Permalink

    Called periodically on every attached connection handler, this can be used for checking if an ongoing operation has timed out.

    Called periodically on every attached connection handler, this can be used for checking if an ongoing operation has timed out.

    Be aware that this is totally independant of a connection's idle timeout, which is only based on the last time there was any I/O.

    period

    the frequency at which this method is called. Currently this is hardcoded to WorkerManager.IdleCheckFrequency, but may become application dependent in the future.

    Definition Classes
    ServiceServerOutputControllerConnectionHandler
  29. def isBound: Boolean

    Permalink
    Definition Classes
    WorkerItem
  30. def isConnected: Boolean

    Permalink
    Definition Classes
    Controller
  31. final def isInstanceOf[T0]: Boolean

    Permalink
    Definition Classes
    Any
  32. val latency: Local[Histogram]

    Permalink
  33. val log: LoggingAdapter

    Permalink
  34. final def ne(arg0: AnyRef): Boolean

    Permalink
    Definition Classes
    AnyRef
  35. final def notify(): Unit

    Permalink
    Definition Classes
    AnyRef
  36. final def notifyAll(): Unit

    Permalink
    Definition Classes
    AnyRef
  37. def onBind(): Unit

    Permalink

    Called when the item is bound to a worker.

    Called when the item is bound to a worker.

    Attributes
    protected
    Definition Classes
    WorkerItem
  38. def onUnbind(): Unit

    Permalink

    Called when the item has been unbound from a worker

    Called when the item has been unbound from a worker

    Attributes
    protected
    Definition Classes
    WorkerItem
  39. def outputQueueFull: Boolean

    Permalink
    Definition Classes
    OutputController
  40. def pauseReads(): Unit

    Permalink
    Attributes
    protected
    Definition Classes
    InputController
  41. def pauseWrites(): Unit

    Permalink

    Pauses writing of the next item in the queue.

    Pauses writing of the next item in the queue. If there is currently a message in the process of writing, it will be unaffected. New messages can still be pushed to the queue as long as it is not full

    Attributes
    protected
    Definition Classes
    OutputController
  42. def processMessage(request: I): Unit

    Permalink
    Attributes
    protected
    Definition Classes
    ServiceServerInputController
  43. def purgeAll(reason: Throwable): Unit

    Permalink

    Purge both pending and outgoing messages

    Purge both pending and outgoing messages

    Attributes
    protected
    Definition Classes
    OutputController
  44. def purgeOutgoing(reason: Throwable): Unit

    Permalink

    Purge the outgoing message, if there is one

    Purge the outgoing message, if there is one

    If a message is currently being streamed, the stream will be terminated

    Attributes
    protected
    Definition Classes
    OutputController
  45. def purgePending(reason: Throwable): Unit

    Permalink

    Purge all pending messages

    Purge all pending messages

    If a message is currently being written, it is not affected

    Attributes
    protected
    Definition Classes
    OutputController
  46. def push(item: O, createdMillis: Long = System.currentTimeMillis)(postWrite: (OutputResult) ⇒ Unit): Boolean

    Permalink

    Push a message to be written

    Push a message to be written

    Pushing a message does not necessarily mean it will be written, but rather that the message is queued to be written. Messages can be queue regardless of the state of the underlying connection, even if the connection is never reconnected. It is up to the caller to determine whether a message should be pushed based on connection state.

    item

    the message to push

    createdMillis

    the timestamp of when the message was created, defaults to now if not specified

    postWrite

    called either when writing has completed or failed

    returns

    true if the message was successfully enqueued, false if the queue is full

    Attributes
    protected
    Definition Classes
    OutputController
  47. def pushResponse(request: I, response: O, startTime: Long): Unit

    Permalink
    Attributes
    protected
  48. def queueSize: Int

    Permalink
    Definition Classes
    OutputController
  49. def readsEnabled: Boolean

    Permalink
    Definition Classes
    InputController
  50. def readyForData(): Unit

    Permalink

    This function is called to signal to the handler that it can resume writing data.

    This function is called to signal to the handler that it can resume writing data. It is called as part of the WriteEndPoint event loop write cycle, where previously this handler attempted to write data, but the buffers were filled up. This is called once the buffers are empty again and able to receive data. This handler should be in a state where it is paused on writing data until this handler is invoked.

    Definition Classes
    OutputControllerConnectionHandler
  51. def receivedData(data: DataBuffer): Unit

    Permalink

    Handler which is called when data is received from a Connection.

    Handler which is called when data is received from a Connection.

    data

    DataBuffer read from the underlying Connection.

    Definition Classes
    InputControllerConnectionHandler
  52. val requests: Local[Rate]

    Permalink
  53. val requestsPerConnection: Local[Histogram]

    Permalink
  54. def resumeReads(): Unit

    Permalink
    Attributes
    protected
    Definition Classes
    InputController
  55. def resumeWrites(): Unit

    Permalink

    Resumes writing of messages if currently paused, otherwise has no affect

    Resumes writing of messages if currently paused, otherwise has no affect

    Attributes
    protected
    Definition Classes
    OutputController
  56. def schedule(in: FiniteDuration, message: Any): Unit

    Permalink
  57. def shutdownRequest(): Unit

    Permalink

    The server is beginning to shutdown and is signaling to the connection that it should cleanup and terminate.

    The server is beginning to shutdown and is signaling to the connection that it should cleanup and terminate. This gives the connection time to gracefully shutdown, however eventually the server will timeout and forcefully close the connection

    Definition Classes
    ServiceServerServerConnectionHandler
  58. var state: ConnectionState

    Permalink
    Attributes
    protected
    Definition Classes
    ControllerMasterController
  59. final def synchronized[T0](arg0: ⇒ T0): T0

    Permalink
    Definition Classes
    AnyRef
  60. def toString(): String

    Permalink
    Definition Classes
    AnyRef → Any
  61. final def wait(): Unit

    Permalink
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  62. final def wait(arg0: Long, arg1: Int): Unit

    Permalink
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  63. final def wait(arg0: Long): Unit

    Permalink
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  64. def writesEnabled: Boolean

    Permalink
    Definition Classes
    OutputController

Inherited from ServerConnectionHandler

Inherited from Controller[I, O]

Inherited from OutputController[I, O]

Inherited from InputController[I, O]

Inherited from MasterController[I, O]

Inherited from ConnectionHandler

Inherited from WorkerItem

Inherited from AnyRef

Inherited from Any

Ungrouped