Class HttpContext


public abstract class HttpContext extends Object
HttpContext represents a mapping between the root URI path of an application to a HttpHandler which is invoked to handle requests destined for that path on the associated HttpServer or HttpsServer.

HttpContext instances are created by the create methods in HttpServer and HttpsServer.

A chain of Filter objects can be added to a HttpContext. All exchanges processed by the context can be pre- and post-processed by each Filter in the chain.

  • Constructor Details

    • HttpContext

      protected HttpContext()
      Constructor for subclasses to call.
  • Method Details

    • getHandler

      public abstract HttpHandler getHandler()
      Returns the handler for this context.
      the HttpHandler for this context
    • setHandler

      public abstract void setHandler(HttpHandler handler)
      Sets the handler for this context, if not already set.
      handler - the handler to set for this context
      IllegalArgumentException - if the context for this handler is already set.
      NullPointerException - if handler is null
    • getPath

      public abstract String getPath()
      Returns the path this context was created with.
      the context of this path
    • getServer

      public abstract HttpServer getServer()
      Returns the server this context was created with.
      the context of this server
    • getAttributes

      public abstract Map<String,Object> getAttributes()
      Returns a mutable Map, which can be used to pass configuration and other data to Filter modules and to the context's exchange handler.

      Every attribute stored in this Map will be visible to every HttpExchange processed by this context.

      a Map containing the attributes of this context
    • getFilters

      public abstract List<Filter> getFilters()
      Returns this context's List of filters. This is the actual list used by the server when dispatching requests so modifications to this list immediately affect the the handling of exchanges.
      a List containing the filters of this context
    • setAuthenticator

      public abstract Authenticator setAuthenticator(Authenticator auth)
      Sets the Authenticator for this HttpContext. Once an authenticator is establised on a context, all client requests must be authenticated, and the given object will be invoked to validate each request. Each call to this method replaces any previous value set.
      auth - the Authenticator to set. If null then any previously set Authenticator is removed, and client authentication will no longer be required.
      the previous Authenticator, if any set, or null otherwise.
    • getAuthenticator

      public abstract Authenticator getAuthenticator()
      Returns the currently set Authenticator for this context if one exists.
      this HttpContext's Authenticator, or null if none is set