Packages

  • package root
    Definition Classes
    root
  • package com
    Definition Classes
    root
  • package twitter

    Start with com.twitter.finagle.

    Definition Classes
    com
  • package finagle

    Finagle is an extensible RPC system.

    Finagle is an extensible RPC system.

    Services are represented by class com.twitter.finagle.Service. Clients make use of com.twitter.finagle.Service objects while servers implement them.

    Finagle contains a number of protocol implementations; each of these implement Client and/or com.twitter.finagle.Server. For example, Finagle's HTTP implementation, com.twitter.finagle.Http (in package finagle-http), exposes both.

    Thus a simple HTTP server is built like this:

    import com.twitter.finagle.{Http, Service}
    import com.twitter.finagle.http.{Request, Response}
    import com.twitter.util.{Await, Future}
    
    val service = new Service[Request, Response] {
      def apply(req: Request): Future[Response] =
        Future.value(Response())
    }
    val server = Http.server.serve(":8080", service)
    Await.ready(server)

    We first define a service to which requests are dispatched. In this case, the service returns immediately with a HTTP 200 OK response, and with no content.

    This service is then served via the Http protocol on TCP port 8080. Finally we wait for the server to stop serving.

    We can now query our web server:

    % curl -D - localhost:8080
    HTTP/1.1 200 OK

    Building an HTTP client is also simple. (Note that type annotations are added for illustration.)

    import com.twitter.finagle.{Http, Service}
    import com.twitter.finagle.http.{Request, Response}
    import com.twitter.util.{Future, Return, Throw}
    
    val client: Service[Request, Response] = Http.client.newService("localhost:8080")
    val f: Future[Response] = client(Request()).respond {
      case Return(rep) =>
        printf("Got HTTP response %s\n", rep)
      case Throw(exc) =>
        printf("Got error %s\n", exc)
    }

    Http.client.newService("localhost:8080") constructs a new com.twitter.finagle.Service instance connected to localhost TCP port 8080. We then issue a HTTP/1.1 GET request to URI "/". The service returns a com.twitter.util.Future representing the result of the operation. We listen to this future, printing an appropriate message when the response arrives.

    The Finagle homepage contains useful documentation and resources for using Finagle.

    Definition Classes
    twitter
  • package ssl
    Definition Classes
    finagle
  • package session
    Definition Classes
    ssl
  • NullSslSessionInfo
  • SslSessionInfo
c

com.twitter.finagle.ssl.session

SslSessionInfo

abstract class SslSessionInfo extends AnyRef

SslSessionInfo provides information related to an existing connection's use of an SSL/TLS session. SSL/TLS sessions are either negotiated or resumed during handshaking. When using SSL/TLS, one and only one SSL/TLS session is associated with a connection, although it's possible that an SSL/TLS session may be reused between multiple connections.

An instance of this class should be associated with an existing connection. When using SSL/TLS, the instance provides easy access to the session and its relevant information. When not using SSL/TLS (i.e. there is no existing SSL/TLS session), then a NullSslSessionInfo should be used instead.

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Instance Constructors

  1. new SslSessionInfo()

Abstract Value Members

  1. abstract def cipherSuite: String

    The cipher suite associated with an SSLSession.

    The cipher suite associated with an SSLSession.

    Note

    If SSL/TLS is not being used, an empty string will be returned instead.

  2. abstract def localCertificates: Seq[X509Certificate]

    The X509Certificates that were sent to the peer during the SSL/TLS handshake.

    The X509Certificates that were sent to the peer during the SSL/TLS handshake.

    Note

    If SSL/TLS is not being used, an empty sequence will be returned instead.

  3. abstract def peerCertificates: Seq[X509Certificate]

    The X509Certificates that were received from the peer during the SSL/TLS handshake.

    The X509Certificates that were received from the peer during the SSL/TLS handshake.

    Note

    If SSL/TLS is not being used, an empty sequence will be returned instead.

  4. abstract def session: SSLSession

    The SSLSession associated with a particular connection.

    The SSLSession associated with a particular connection.

    Note

    If SSL/TLS is not being used a NullSslSession will be returned instead.

  5. abstract def sessionId: String

    The Session ID associated with an SSLSession.

    The Session ID associated with an SSLSession.

    Note

    The maximum length for an SSL/TLS Session ID is 32 bytes. This method returns a hex string version of the Session ID which has a maximum length of 64 bytes.

    ,

    If SSL/TLS is not being used, an empty string will be returned instead.

  6. abstract def usingSsl: Boolean

    Indicates whether the connection is using SSL/TLS.

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