class SecondaryKeyCalculator extends AnyRef

This class produces secondary keys for a response from an origin server that contains a Vary header.

The cache must store the response with the requested header from the original request, so that subsequent requests match. This is a little confusing, so an example follows:

A request comes in with:

GET /some/path HTTP/1.1
Host: example.com
Accept-Encoding: gzip

The response comes back with a Vary header on the Accept-Encoding:

HTTP/1.1 200 OK
Vary: Accept-Encoding
Content-Encoding: gzip
Content-Type: application/json
Content-Length: 230
Cache-Control: max-age=10000000

The cache has to look at the Vary header, see that "Accept-Encoding" is a header on the request, and then store "Accept-Encoding: gzip" as a secondary key on the cache entry.

The implication is that the primary key entry of "GET http://example.com/some/path" is insufficient, and in order to get that specific response from cache, any subsequent requests should have a "Accept-Encoding: gzip" header in the same way.

Source
SecondaryKeyCalculator.scala
See also

https://tools.ietf.org/html/rfc7234#section-4.1

https://tools.ietf.org/html/rfc7231#section-7.1.4

Linear Supertypes
AnyRef, Any
Ordering
  1. Alphabetic
  2. By Inheritance
Inherited
  1. SecondaryKeyCalculator
  2. AnyRef
  3. Any
  1. Hide All
  2. Show All
Visibility
  1. Public
  2. Protected

Instance Constructors

  1. new SecondaryKeyCalculator()

Value Members

  1. final def !=(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  2. final def ##: Int
    Definition Classes
    AnyRef → Any
  3. final def ==(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  4. final def asInstanceOf[T0]: T0
    Definition Classes
    Any
  5. def calculate(request: CacheRequest, responseHeaders: Map[HeaderName, Seq[String]]): Option[Map[HeaderName, Seq[String]]]

    Finds the selecting header fields, based off the response's Vary header and the original request.

    Finds the selecting header fields, based off the response's Vary header and the original request.

    request

    the original request

    responseHeaders

    the origin response

    returns

    the selecting header fields, or None if there are no keys.

  6. def clone(): AnyRef
    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.CloneNotSupportedException]) @HotSpotIntrinsicCandidate() @native()
  7. final def eq(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  8. def equals(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef → Any
  9. final def getClass(): Class[_ <: AnyRef]
    Definition Classes
    AnyRef → Any
    Annotations
    @HotSpotIntrinsicCandidate() @native()
  10. def hashCode(): Int
    Definition Classes
    AnyRef → Any
    Annotations
    @HotSpotIntrinsicCandidate() @native()
  11. final def isInstanceOf[T0]: Boolean
    Definition Classes
    Any
  12. final def ne(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  13. final def notify(): Unit
    Definition Classes
    AnyRef
    Annotations
    @HotSpotIntrinsicCandidate() @native()
  14. final def notifyAll(): Unit
    Definition Classes
    AnyRef
    Annotations
    @HotSpotIntrinsicCandidate() @native()
  15. final def synchronized[T0](arg0: => T0): T0
    Definition Classes
    AnyRef
  16. def toString(): String
    Definition Classes
    AnyRef → Any
  17. final def wait(arg0: Long, arg1: Int): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.InterruptedException])
  18. final def wait(arg0: Long): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.InterruptedException]) @native()
  19. final def wait(): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.InterruptedException])

Deprecated Value Members

  1. def finalize(): Unit
    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.Throwable]) @Deprecated
    Deprecated

    (Since version 9)

Inherited from AnyRef

Inherited from Any

Ungrouped