Package org.apache.hc.client5.http.impl.cache

Class CachingExecBase

java.lang.Object
org.apache.hc.client5.http.impl.cache.CachingExecBase
Direct Known Subclasses:
AsyncCachingExec, CachingExec
public class CachingExecBase extends Object

  • Field Details

  • Constructor Details

  • Method Details

    • getCacheHits

      public long getCacheHits()
      Reports the number of times that the cache successfully responded to an HttpRequest without contacting the origin server.
      Returns:
      the number of cache hits

    • getCacheMisses

      public long getCacheMisses()
      Reports the number of times that the cache contacted the origin server because it had no appropriate response cached.
      Returns:
      the number of cache misses

    • getCacheUpdates

      public long getCacheUpdates()
      Reports the number of times that the cache was able to satisfy a response by revalidating an existing but stale cache entry.
      Returns:
      the number of cache revalidations

    • getFatallyNonCompliantResponse

      SimpleHttpResponse getFatallyNonCompliantResponse(org.apache.hc.core5.http.HttpRequest request, org.apache.hc.core5.http.protocol.HttpContext context)
      Since:
      5.2

    • recordCacheMiss

      void recordCacheMiss(org.apache.hc.core5.http.HttpHost target, org.apache.hc.core5.http.HttpRequest request)

    • recordCacheHit

      void recordCacheHit(org.apache.hc.core5.http.HttpHost target, org.apache.hc.core5.http.HttpRequest request)

    • recordCacheFailure

      void recordCacheFailure(org.apache.hc.core5.http.HttpHost target, org.apache.hc.core5.http.HttpRequest request)

    • recordCacheUpdate

      void recordCacheUpdate(org.apache.hc.core5.http.protocol.HttpContext context)

    • generateCachedResponse

      SimpleHttpResponse generateCachedResponse(org.apache.hc.core5.http.HttpRequest request, org.apache.hc.core5.http.protocol.HttpContext context, HttpCacheEntry entry, Instant now) throws ResourceIOException
      Throws:
      ResourceIOException

    • handleRevalidationFailure

      SimpleHttpResponse handleRevalidationFailure(org.apache.hc.core5.http.HttpRequest request, org.apache.hc.core5.http.protocol.HttpContext context, HttpCacheEntry entry, Instant now) throws IOException
      Throws:
      IOException

    • generateGatewayTimeout

      SimpleHttpResponse generateGatewayTimeout(org.apache.hc.core5.http.protocol.HttpContext context)

    • unvalidatedCacheHit

      SimpleHttpResponse unvalidatedCacheHit(org.apache.hc.core5.http.HttpRequest request, org.apache.hc.core5.http.protocol.HttpContext context, HttpCacheEntry entry) throws IOException
      Throws:
      IOException

    • staleResponseNotAllowed

      boolean staleResponseNotAllowed(org.apache.hc.core5.http.HttpRequest request, HttpCacheEntry entry, Instant now)

    • mayCallBackend

      boolean mayCallBackend(org.apache.hc.core5.http.HttpRequest request)

    • explicitFreshnessRequest

      boolean explicitFreshnessRequest(org.apache.hc.core5.http.HttpRequest request, HttpCacheEntry entry, Instant now)

    • generateViaHeader

      String generateViaHeader(org.apache.hc.core5.http.HttpMessage msg)

    • setResponseStatus

      void setResponseStatus(org.apache.hc.core5.http.protocol.HttpContext context, CacheResponseStatus value)

    • supportsRangeAndContentRangeHeaders

      boolean supportsRangeAndContentRangeHeaders()
      Reports whether this CachingHttpClient implementation supports byte-range requests as specified by the Range and Content-Range headers.
      Returns:
      true if byte-range requests are supported

    • getCurrentDate

      Instant getCurrentDate()

    • clientRequestsOurOptions

      boolean clientRequestsOurOptions(org.apache.hc.core5.http.HttpRequest request)

    • revalidationResponseIsTooOld

      boolean revalidationResponseIsTooOld(org.apache.hc.core5.http.HttpResponse backendResponse, HttpCacheEntry cacheEntry)

    • shouldSendNotModifiedResponse

      boolean shouldSendNotModifiedResponse(org.apache.hc.core5.http.HttpRequest request, HttpCacheEntry responseEntry)

    • staleIfErrorAppliesTo

      boolean staleIfErrorAppliesTo(int statusCode)

    • storeRequestIfModifiedSinceFor304Response

      void storeRequestIfModifiedSinceFor304Response(org.apache.hc.core5.http.HttpRequest request, org.apache.hc.core5.http.HttpResponse backendResponse)
      For 304 Not modified responses, adds a "Last-Modified" header with the value of the "If-Modified-Since" header passed in the request. This header is required to be able to reuse match the cache entry for subsequent requests but as defined in http specifications it is not included in 304 responses by backend servers. This header will not be included in the resulting response.