Package org.apache.http.impl.client.cache

Class CachingHttpAsyncClient

  • All Implemented Interfaces:
    HttpAsyncClient
    @Contract(threading=SAFE)
public class CachingHttpAsyncClient
extends java.lang.Object
implements HttpAsyncClient

    • Constructor Summary

      Constructors 
      Constructor Description
      CachingHttpAsyncClient()  
      CachingHttpAsyncClient​(org.apache.http.impl.client.cache.CacheConfig config)  
      CachingHttpAsyncClient​(HttpAsyncClient client)  
      CachingHttpAsyncClient​(HttpAsyncClient client, org.apache.http.client.cache.HttpCacheStorage storage, org.apache.http.impl.client.cache.CacheConfig config)  
      CachingHttpAsyncClient​(HttpAsyncClient client, org.apache.http.client.cache.ResourceFactory resourceFactory, org.apache.http.client.cache.HttpCacheStorage storage, org.apache.http.impl.client.cache.CacheConfig config)  
      CachingHttpAsyncClient​(HttpAsyncClient client, org.apache.http.impl.client.cache.CacheConfig config)  
      CachingHttpAsyncClient​(HttpAsyncClient backend, org.apache.http.impl.client.cache.CacheValidityPolicy validityPolicy, org.apache.http.impl.client.cache.ResponseCachingPolicy responseCachingPolicy, org.apache.http.impl.client.cache.HttpCache responseCache, org.apache.http.impl.client.cache.CachedHttpResponseGenerator responseGenerator, org.apache.http.impl.client.cache.CacheableRequestPolicy cacheableRequestPolicy, org.apache.http.impl.client.cache.CachedResponseSuitabilityChecker suitabilityChecker, org.apache.http.impl.client.cache.ConditionalRequestBuilder conditionalRequestBuilder, org.apache.http.impl.client.cache.ResponseProtocolCompliance responseCompliance, org.apache.http.impl.client.cache.RequestProtocolCompliance requestCompliance)  
      CachingHttpAsyncClient​(HttpAsyncClient client, org.apache.http.impl.client.cache.HttpCache cache, org.apache.http.impl.client.cache.CacheConfig config)  

    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      private boolean alreadyHaveNewerCacheEntry​(org.apache.http.HttpHost target, org.apache.http.HttpRequest request, org.apache.http.HttpResponse backendResponse)  
      (package private) void callBackend​(org.apache.http.concurrent.BasicFuture<org.apache.http.HttpResponse> future, org.apache.http.HttpHost target, org.apache.http.client.methods.HttpRequestWrapper request, org.apache.http.client.cache.HttpCacheContext clientContext)  
      (package private) boolean clientRequestsOurOptions​(org.apache.http.HttpRequest request)  
      java.util.concurrent.Future<org.apache.http.HttpResponse> execute​(org.apache.http.client.methods.HttpUriRequest request, org.apache.http.concurrent.FutureCallback<org.apache.http.HttpResponse> callback)
      Initiates asynchronous HTTP request execution.
      java.util.concurrent.Future<org.apache.http.HttpResponse> execute​(org.apache.http.client.methods.HttpUriRequest request, org.apache.http.protocol.HttpContext context, org.apache.http.concurrent.FutureCallback<org.apache.http.HttpResponse> callback)
      Initiates asynchronous HTTP request execution using the given context.
      java.util.concurrent.Future<org.apache.http.HttpResponse> execute​(org.apache.http.HttpHost target, org.apache.http.HttpRequest request, org.apache.http.concurrent.FutureCallback<org.apache.http.HttpResponse> callback)
      Initiates asynchronous HTTP request execution against the given target.
      java.util.concurrent.Future<org.apache.http.HttpResponse> execute​(org.apache.http.HttpHost target, org.apache.http.HttpRequest originalRequest, org.apache.http.protocol.HttpContext context, org.apache.http.concurrent.FutureCallback<org.apache.http.HttpResponse> futureCallback)
      Initiates asynchronous HTTP request execution against the given target using the given context.
      <T> java.util.concurrent.Future<T> execute​(org.apache.http.nio.protocol.HttpAsyncRequestProducer requestProducer, org.apache.http.nio.protocol.HttpAsyncResponseConsumer<T> responseConsumer, org.apache.http.concurrent.FutureCallback<T> callback)
      Initiates asynchronous HTTP request execution using the default context.
      <T> java.util.concurrent.Future<T> execute​(org.apache.http.nio.protocol.HttpAsyncRequestProducer requestProducer, org.apache.http.nio.protocol.HttpAsyncResponseConsumer<T> responseConsumer, org.apache.http.protocol.HttpContext context, org.apache.http.concurrent.FutureCallback<T> callback)
      Initiates asynchronous HTTP request execution using the given context.
      private boolean explicitFreshnessRequest​(org.apache.http.HttpRequest request, org.apache.http.client.cache.HttpCacheEntry entry, java.util.Date now)  
      private void flushEntriesInvalidatedByRequest​(org.apache.http.HttpHost target, org.apache.http.HttpRequest request)  
      private org.apache.http.HttpResponse generateCachedResponse​(org.apache.http.client.methods.HttpRequestWrapper request, org.apache.http.client.cache.HttpCacheContext clientContext, org.apache.http.client.cache.HttpCacheEntry entry, java.util.Date now)  
      private org.apache.http.HttpResponse generateGatewayTimeout​(org.apache.http.client.cache.HttpCacheContext clientContext)  
      private java.lang.String generateViaHeader​(org.apache.http.HttpMessage msg)  
      long getCacheHits()
      Reports the number of times that the cache successfully responded to an HttpRequest without contacting the origin server.
      long getCacheMisses()
      Reports the number of times that the cache contacted the origin server because it had no appropriate response cached.
      long getCacheUpdates()
      Reports the number of times that the cache was able to satisfy a response by revalidating an existing but stale cache entry.
      (package private) java.util.Date getCurrentDate()  
      private java.util.Map<java.lang.String,​org.apache.http.impl.client.cache.Variant> getExistingCacheVariants​(org.apache.http.HttpHost target, org.apache.http.HttpRequest request)  
      private org.apache.http.HttpResponse getFatallyNoncompliantResponse​(org.apache.http.HttpRequest request, org.apache.http.client.cache.HttpCacheContext clientContext)  
      private org.apache.http.client.cache.HttpCacheEntry getUpdatedVariantEntry​(org.apache.http.HttpHost target, org.apache.http.HttpRequest conditionalRequest, java.util.Date requestDate, java.util.Date responseDate, org.apache.http.HttpResponse backendResponse, org.apache.http.impl.client.cache.Variant matchingVariant, org.apache.http.client.cache.HttpCacheEntry matchedEntry)  
      (package private) org.apache.http.client.methods.CloseableHttpResponse handleBackendResponse​(org.apache.http.HttpHost target, org.apache.http.client.methods.HttpRequestWrapper request, java.util.Date requestDate, java.util.Date responseDate, org.apache.http.client.methods.CloseableHttpResponse backendResponse)  
      private void handleCacheHit​(org.apache.http.concurrent.BasicFuture<org.apache.http.HttpResponse> future, org.apache.http.HttpHost target, org.apache.http.client.methods.HttpRequestWrapper request, org.apache.http.client.cache.HttpCacheContext clientContext, org.apache.http.client.cache.HttpCacheEntry entry)  
      private void handleCacheMiss​(org.apache.http.concurrent.BasicFuture<org.apache.http.HttpResponse> future, org.apache.http.HttpHost target, org.apache.http.client.methods.HttpRequestWrapper request, org.apache.http.client.cache.HttpCacheContext clientContext)  
      private org.apache.http.HttpResponse handleRevalidationFailure​(org.apache.http.client.methods.HttpRequestWrapper request, org.apache.http.client.cache.HttpCacheContext clientContext, org.apache.http.client.cache.HttpCacheEntry entry, java.util.Date now)  
      boolean isSharedCache()
      Reports whether this CachingHttpClient is configured as a shared (public) or non-shared (private) cache.
      private AsynchronousAsyncValidator makeAsynchronousValidator​(org.apache.http.impl.client.cache.CacheConfig config)  
      private boolean mayCallBackend​(org.apache.http.HttpRequest request)  
      (package private) void negotiateResponseFromVariants​(org.apache.http.concurrent.BasicFuture<org.apache.http.HttpResponse> future, org.apache.http.HttpHost target, org.apache.http.client.methods.HttpRequestWrapper request, org.apache.http.client.cache.HttpCacheContext clientContext, java.util.Map<java.lang.String,​org.apache.http.impl.client.cache.Variant> variants)  
      private void recordCacheHit​(org.apache.http.HttpHost target, org.apache.http.HttpRequest request)  
      private void recordCacheMiss​(org.apache.http.HttpHost target, org.apache.http.HttpRequest request)  
      private void recordCacheUpdate​(org.apache.http.client.cache.HttpCacheContext clientContext)  
      private void retryRequestUnconditionally​(org.apache.http.concurrent.BasicFuture<org.apache.http.HttpResponse> future, org.apache.http.HttpHost target, org.apache.http.client.methods.HttpRequestWrapper request, org.apache.http.client.cache.HttpCacheContext clientContext, org.apache.http.client.cache.HttpCacheEntry matchedEntry)  
      (package private) void revalidateCacheEntry​(org.apache.http.concurrent.BasicFuture<org.apache.http.HttpResponse> future, org.apache.http.HttpHost target, org.apache.http.client.methods.HttpRequestWrapper request, org.apache.http.client.cache.HttpCacheContext clientContext, org.apache.http.client.cache.HttpCacheEntry cacheEntry)  
      private void revalidateCacheEntry​(org.apache.http.concurrent.BasicFuture<org.apache.http.HttpResponse> future, org.apache.http.HttpHost target, org.apache.http.client.methods.HttpRequestWrapper request, org.apache.http.client.cache.HttpCacheContext clientContext, org.apache.http.client.cache.HttpCacheEntry entry, java.util.Date now)  
      private void revalidateCacheEntryCompleted​(org.apache.http.concurrent.BasicFuture<org.apache.http.HttpResponse> future, org.apache.http.HttpHost target, org.apache.http.client.methods.HttpRequestWrapper request, org.apache.http.client.cache.HttpCacheContext clientContext, org.apache.http.client.cache.HttpCacheEntry cacheEntry, org.apache.http.client.methods.HttpRequestWrapper conditionalRequest, java.util.Date requestDate, org.apache.http.HttpResponse httpResponse, java.util.Date responseDate)  
      private boolean revalidationResponseIsTooOld​(org.apache.http.HttpResponse backendResponse, org.apache.http.client.cache.HttpCacheEntry cacheEntry)  
      private org.apache.http.client.cache.HttpCacheEntry satisfyFromCache​(org.apache.http.HttpHost target, org.apache.http.HttpRequest request)  
      private void setResponseStatus​(org.apache.http.client.cache.HttpCacheContext clientContext, org.apache.http.client.cache.CacheResponseStatus value)  
      private boolean shouldSendNotModifiedResponse​(org.apache.http.HttpRequest request, org.apache.http.client.cache.HttpCacheEntry responseEntry)  
      private boolean staleIfErrorAppliesTo​(int statusCode)  
      private boolean staleResponseNotAllowed​(org.apache.http.HttpRequest request, org.apache.http.client.cache.HttpCacheEntry entry, java.util.Date now)  
      private void storeRequestIfModifiedSinceFor304Response​(org.apache.http.HttpRequest request, org.apache.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.
      boolean supportsRangeAndContentRangeHeaders()
      Reports whether this CachingHttpClient implementation supports byte-range requests as specified by the Range and Content-Range headers.
      private void tryToUpdateVariantMap​(org.apache.http.HttpHost target, org.apache.http.HttpRequest request, org.apache.http.impl.client.cache.Variant matchingVariant)  
      private org.apache.http.HttpResponse unvalidatedCacheHit​(org.apache.http.client.cache.HttpCacheContext clientContext, org.apache.http.client.methods.HttpRequestWrapper request, org.apache.http.client.cache.HttpCacheEntry entry)  

      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

    • Field Detail

      • SUPPORTS_RANGE_AND_CONTENT_RANGE_HEADERS

        private static final boolean SUPPORTS_RANGE_AND_CONTENT_RANGE_HEADERS
        See Also:
        Constant Field Values

      • cacheHits

        private final java.util.concurrent.atomic.AtomicLong cacheHits

      • cacheMisses

        private final java.util.concurrent.atomic.AtomicLong cacheMisses

      • cacheUpdates

        private final java.util.concurrent.atomic.AtomicLong cacheUpdates

      • viaHeaders

        private final java.util.Map<org.apache.http.ProtocolVersion,​java.lang.String> viaHeaders

      • responseCache

        private final org.apache.http.impl.client.cache.HttpCache responseCache

      • validityPolicy

        private final org.apache.http.impl.client.cache.CacheValidityPolicy validityPolicy

      • responseCachingPolicy

        private final org.apache.http.impl.client.cache.ResponseCachingPolicy responseCachingPolicy

      • responseGenerator

        private final org.apache.http.impl.client.cache.CachedHttpResponseGenerator responseGenerator

      • cacheableRequestPolicy

        private final org.apache.http.impl.client.cache.CacheableRequestPolicy cacheableRequestPolicy

      • suitabilityChecker

        private final org.apache.http.impl.client.cache.CachedResponseSuitabilityChecker suitabilityChecker

      • conditionalRequestBuilder

        private final org.apache.http.impl.client.cache.ConditionalRequestBuilder conditionalRequestBuilder

      • maxObjectSizeBytes

        private final long maxObjectSizeBytes

      • sharedCache

        private final boolean sharedCache

      • responseCompliance

        private final org.apache.http.impl.client.cache.ResponseProtocolCompliance responseCompliance

      • requestCompliance

        private final org.apache.http.impl.client.cache.RequestProtocolCompliance requestCompliance

      • log

        private final org.apache.commons.logging.Log log

    • Constructor Detail

      • CachingHttpAsyncClient

        CachingHttpAsyncClient​(HttpAsyncClient client,
                       org.apache.http.impl.client.cache.HttpCache cache,
                       org.apache.http.impl.client.cache.CacheConfig config)

      • CachingHttpAsyncClient

        public CachingHttpAsyncClient()
                       throws org.apache.http.nio.reactor.IOReactorException
        Throws:
        org.apache.http.nio.reactor.IOReactorException

      • CachingHttpAsyncClient

        public CachingHttpAsyncClient​(org.apache.http.impl.client.cache.CacheConfig config)
                       throws org.apache.http.nio.reactor.IOReactorException
        Throws:
        org.apache.http.nio.reactor.IOReactorException

      • CachingHttpAsyncClient

        public CachingHttpAsyncClient​(HttpAsyncClient client)

      • CachingHttpAsyncClient

        public CachingHttpAsyncClient​(HttpAsyncClient client,
                              org.apache.http.impl.client.cache.CacheConfig config)

      • CachingHttpAsyncClient

        public CachingHttpAsyncClient​(HttpAsyncClient client,
                              org.apache.http.client.cache.ResourceFactory resourceFactory,
                              org.apache.http.client.cache.HttpCacheStorage storage,
                              org.apache.http.impl.client.cache.CacheConfig config)

      • CachingHttpAsyncClient

        public CachingHttpAsyncClient​(HttpAsyncClient client,
                              org.apache.http.client.cache.HttpCacheStorage storage,
                              org.apache.http.impl.client.cache.CacheConfig config)

      • CachingHttpAsyncClient

        CachingHttpAsyncClient​(HttpAsyncClient backend,
                       org.apache.http.impl.client.cache.CacheValidityPolicy validityPolicy,
                       org.apache.http.impl.client.cache.ResponseCachingPolicy responseCachingPolicy,
                       org.apache.http.impl.client.cache.HttpCache responseCache,
                       org.apache.http.impl.client.cache.CachedHttpResponseGenerator responseGenerator,
                       org.apache.http.impl.client.cache.CacheableRequestPolicy cacheableRequestPolicy,
                       org.apache.http.impl.client.cache.CachedResponseSuitabilityChecker suitabilityChecker,
                       org.apache.http.impl.client.cache.ConditionalRequestBuilder conditionalRequestBuilder,
                       org.apache.http.impl.client.cache.ResponseProtocolCompliance responseCompliance,
                       org.apache.http.impl.client.cache.RequestProtocolCompliance requestCompliance)

    • Method Detail

      • makeAsynchronousValidator

        private AsynchronousAsyncValidator makeAsynchronousValidator​(org.apache.http.impl.client.cache.CacheConfig config)

      • 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

      • execute

        public java.util.concurrent.Future<org.apache.http.HttpResponse> execute​(org.apache.http.HttpHost target,
                                                                         org.apache.http.HttpRequest request,
                                                                         org.apache.http.concurrent.FutureCallback<org.apache.http.HttpResponse> callback)
        Description copied from interface: HttpAsyncClient
        Initiates asynchronous HTTP request execution against the given target.
        Specified by:
        execute in interface HttpAsyncClient
        Parameters:
        target - the target host for the request. Implementations may accept null if they can still determine a route, for example to a default target or by inspecting the request.
        request - the request to execute
        callback - future callback.
        Returns:
        future representing pending completion of the operation.

      • execute

        public <T> java.util.concurrent.Future<T> execute​(org.apache.http.nio.protocol.HttpAsyncRequestProducer requestProducer,
                                                  org.apache.http.nio.protocol.HttpAsyncResponseConsumer<T> responseConsumer,
                                                  org.apache.http.concurrent.FutureCallback<T> callback)
        Description copied from interface: HttpAsyncClient
        Initiates asynchronous HTTP request execution using the default context.

        The request producer passed to this method will be used to generate a request message and stream out its content without buffering it in memory. The response consumer passed to this method will be used to process a response message without buffering its content in memory.

        Specified by:
        execute in interface HttpAsyncClient
        Type Parameters:
        T - the result type of request execution.
        Parameters:
        requestProducer - request producer callback.
        responseConsumer - response consumer callaback.
        callback - future callback.
        Returns:
        future representing pending completion of the operation.

      • execute

        public <T> java.util.concurrent.Future<T> execute​(org.apache.http.nio.protocol.HttpAsyncRequestProducer requestProducer,
                                                  org.apache.http.nio.protocol.HttpAsyncResponseConsumer<T> responseConsumer,
                                                  org.apache.http.protocol.HttpContext context,
                                                  org.apache.http.concurrent.FutureCallback<T> callback)
        Description copied from interface: HttpAsyncClient
        Initiates asynchronous HTTP request execution using the given context.

        The request producer passed to this method will be used to generate a request message and stream out its content without buffering it in memory. The response consumer passed to this method will be used to process a response message without buffering its content in memory.

        Please note it may be unsafe to interact with the context instance while the request is still being executed.

        Specified by:
        execute in interface HttpAsyncClient
        Type Parameters:
        T - the result type of request execution.
        Parameters:
        requestProducer - request producer callback.
        responseConsumer - response consumer callaback.
        context - HTTP context
        callback - future callback.
        Returns:
        future representing pending completion of the operation.

      • execute

        public java.util.concurrent.Future<org.apache.http.HttpResponse> execute​(org.apache.http.client.methods.HttpUriRequest request,
                                                                         org.apache.http.concurrent.FutureCallback<org.apache.http.HttpResponse> callback)
        Description copied from interface: HttpAsyncClient
        Initiates asynchronous HTTP request execution.
        Specified by:
        execute in interface HttpAsyncClient
        Parameters:
        request - the request to execute
        callback - future callback.
        Returns:
        future representing pending completion of the operation.

      • execute

        public java.util.concurrent.Future<org.apache.http.HttpResponse> execute​(org.apache.http.client.methods.HttpUriRequest request,
                                                                         org.apache.http.protocol.HttpContext context,
                                                                         org.apache.http.concurrent.FutureCallback<org.apache.http.HttpResponse> callback)
        Description copied from interface: HttpAsyncClient
        Initiates asynchronous HTTP request execution using the given context.

        Please note it may be unsafe to interact with the context instance while the request is still being executed.

        Specified by:
        execute in interface HttpAsyncClient
        Parameters:
        request - the request to execute
        context - HTTP context
        callback - future callback.
        Returns:
        future representing pending completion of the operation.

      • execute

        public java.util.concurrent.Future<org.apache.http.HttpResponse> execute​(org.apache.http.HttpHost target,
                                                                         org.apache.http.HttpRequest originalRequest,
                                                                         org.apache.http.protocol.HttpContext context,
                                                                         org.apache.http.concurrent.FutureCallback<org.apache.http.HttpResponse> futureCallback)
        Description copied from interface: HttpAsyncClient
        Initiates asynchronous HTTP request execution against the given target using the given context.

        Please note it may be unsafe to interact with the context instance while the request is still being executed.

        Specified by:
        execute in interface HttpAsyncClient
        Parameters:
        target - the target host for the request. Implementations may accept null if they can still determine a route, for example to a default target or by inspecting the request.
        originalRequest - the request to execute
        context - the context to use for the execution, or null to use the default context
        futureCallback - future callback.
        Returns:
        future representing pending completion of the operation.

      • handleCacheHit

        private void handleCacheHit​(org.apache.http.concurrent.BasicFuture<org.apache.http.HttpResponse> future,
                            org.apache.http.HttpHost target,
                            org.apache.http.client.methods.HttpRequestWrapper request,
                            org.apache.http.client.cache.HttpCacheContext clientContext,
                            org.apache.http.client.cache.HttpCacheEntry entry)
                     throws java.io.IOException
        Throws:
        java.io.IOException

      • revalidateCacheEntry

        private void revalidateCacheEntry​(org.apache.http.concurrent.BasicFuture<org.apache.http.HttpResponse> future,
                                  org.apache.http.HttpHost target,
                                  org.apache.http.client.methods.HttpRequestWrapper request,
                                  org.apache.http.client.cache.HttpCacheContext clientContext,
                                  org.apache.http.client.cache.HttpCacheEntry entry,
                                  java.util.Date now)
                           throws org.apache.http.client.ClientProtocolException
        Throws:
        org.apache.http.client.ClientProtocolException

      • handleCacheMiss

        private void handleCacheMiss​(org.apache.http.concurrent.BasicFuture<org.apache.http.HttpResponse> future,
                             org.apache.http.HttpHost target,
                             org.apache.http.client.methods.HttpRequestWrapper request,
                             org.apache.http.client.cache.HttpCacheContext clientContext)

      • satisfyFromCache

        private org.apache.http.client.cache.HttpCacheEntry satisfyFromCache​(org.apache.http.HttpHost target,
                                                                     org.apache.http.HttpRequest request)

      • getFatallyNoncompliantResponse

        private org.apache.http.HttpResponse getFatallyNoncompliantResponse​(org.apache.http.HttpRequest request,
                                                                    org.apache.http.client.cache.HttpCacheContext clientContext)

      • getExistingCacheVariants

        private java.util.Map<java.lang.String,​org.apache.http.impl.client.cache.Variant> getExistingCacheVariants​(org.apache.http.HttpHost target,
                                                                                                                 org.apache.http.HttpRequest request)

      • recordCacheMiss

        private void recordCacheMiss​(org.apache.http.HttpHost target,
                             org.apache.http.HttpRequest request)

      • recordCacheHit

        private void recordCacheHit​(org.apache.http.HttpHost target,
                            org.apache.http.HttpRequest request)

      • recordCacheUpdate

        private void recordCacheUpdate​(org.apache.http.client.cache.HttpCacheContext clientContext)

      • flushEntriesInvalidatedByRequest

        private void flushEntriesInvalidatedByRequest​(org.apache.http.HttpHost target,
                                              org.apache.http.HttpRequest request)

      • generateCachedResponse

        private org.apache.http.HttpResponse generateCachedResponse​(org.apache.http.client.methods.HttpRequestWrapper request,
                                                            org.apache.http.client.cache.HttpCacheContext clientContext,
                                                            org.apache.http.client.cache.HttpCacheEntry entry,
                                                            java.util.Date now)

      • handleRevalidationFailure

        private org.apache.http.HttpResponse handleRevalidationFailure​(org.apache.http.client.methods.HttpRequestWrapper request,
                                                               org.apache.http.client.cache.HttpCacheContext clientContext,
                                                               org.apache.http.client.cache.HttpCacheEntry entry,
                                                               java.util.Date now)

      • generateGatewayTimeout

        private org.apache.http.HttpResponse generateGatewayTimeout​(org.apache.http.client.cache.HttpCacheContext clientContext)

      • unvalidatedCacheHit

        private org.apache.http.HttpResponse unvalidatedCacheHit​(org.apache.http.client.cache.HttpCacheContext clientContext,
                                                         org.apache.http.client.methods.HttpRequestWrapper request,
                                                         org.apache.http.client.cache.HttpCacheEntry entry)

      • staleResponseNotAllowed

        private boolean staleResponseNotAllowed​(org.apache.http.HttpRequest request,
                                        org.apache.http.client.cache.HttpCacheEntry entry,
                                        java.util.Date now)

      • mayCallBackend

        private boolean mayCallBackend​(org.apache.http.HttpRequest request)

      • explicitFreshnessRequest

        private boolean explicitFreshnessRequest​(org.apache.http.HttpRequest request,
                                         org.apache.http.client.cache.HttpCacheEntry entry,
                                         java.util.Date now)

      • generateViaHeader

        private java.lang.String generateViaHeader​(org.apache.http.HttpMessage msg)

      • setResponseStatus

        private void setResponseStatus​(org.apache.http.client.cache.HttpCacheContext clientContext,
                               org.apache.http.client.cache.CacheResponseStatus value)

      • supportsRangeAndContentRangeHeaders

        public 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

      • isSharedCache

        public boolean isSharedCache()
        Reports whether this CachingHttpClient is configured as a shared (public) or non-shared (private) cache. See CacheConfig.setSharedCache(boolean).
        Returns:
        true if we are behaving as a shared (public) cache

      • getCurrentDate

        java.util.Date getCurrentDate()

      • clientRequestsOurOptions

        boolean clientRequestsOurOptions​(org.apache.http.HttpRequest request)

      • callBackend

        void callBackend​(org.apache.http.concurrent.BasicFuture<org.apache.http.HttpResponse> future,
                 org.apache.http.HttpHost target,
                 org.apache.http.client.methods.HttpRequestWrapper request,
                 org.apache.http.client.cache.HttpCacheContext clientContext)

      • revalidationResponseIsTooOld

        private boolean revalidationResponseIsTooOld​(org.apache.http.HttpResponse backendResponse,
                                             org.apache.http.client.cache.HttpCacheEntry cacheEntry)

      • negotiateResponseFromVariants

        void negotiateResponseFromVariants​(org.apache.http.concurrent.BasicFuture<org.apache.http.HttpResponse> future,
                                   org.apache.http.HttpHost target,
                                   org.apache.http.client.methods.HttpRequestWrapper request,
                                   org.apache.http.client.cache.HttpCacheContext clientContext,
                                   java.util.Map<java.lang.String,​org.apache.http.impl.client.cache.Variant> variants)

      • retryRequestUnconditionally

        private void retryRequestUnconditionally​(org.apache.http.concurrent.BasicFuture<org.apache.http.HttpResponse> future,
                                         org.apache.http.HttpHost target,
                                         org.apache.http.client.methods.HttpRequestWrapper request,
                                         org.apache.http.client.cache.HttpCacheContext clientContext,
                                         org.apache.http.client.cache.HttpCacheEntry matchedEntry)

      • getUpdatedVariantEntry

        private org.apache.http.client.cache.HttpCacheEntry getUpdatedVariantEntry​(org.apache.http.HttpHost target,
                                                                           org.apache.http.HttpRequest conditionalRequest,
                                                                           java.util.Date requestDate,
                                                                           java.util.Date responseDate,
                                                                           org.apache.http.HttpResponse backendResponse,
                                                                           org.apache.http.impl.client.cache.Variant matchingVariant,
                                                                           org.apache.http.client.cache.HttpCacheEntry matchedEntry)

      • tryToUpdateVariantMap

        private void tryToUpdateVariantMap​(org.apache.http.HttpHost target,
                                   org.apache.http.HttpRequest request,
                                   org.apache.http.impl.client.cache.Variant matchingVariant)

      • shouldSendNotModifiedResponse

        private boolean shouldSendNotModifiedResponse​(org.apache.http.HttpRequest request,
                                              org.apache.http.client.cache.HttpCacheEntry responseEntry)

      • revalidateCacheEntry

        void revalidateCacheEntry​(org.apache.http.concurrent.BasicFuture<org.apache.http.HttpResponse> future,
                          org.apache.http.HttpHost target,
                          org.apache.http.client.methods.HttpRequestWrapper request,
                          org.apache.http.client.cache.HttpCacheContext clientContext,
                          org.apache.http.client.cache.HttpCacheEntry cacheEntry)
                   throws org.apache.http.ProtocolException
        Throws:
        org.apache.http.ProtocolException

      • revalidateCacheEntryCompleted

        private void revalidateCacheEntryCompleted​(org.apache.http.concurrent.BasicFuture<org.apache.http.HttpResponse> future,
                                           org.apache.http.HttpHost target,
                                           org.apache.http.client.methods.HttpRequestWrapper request,
                                           org.apache.http.client.cache.HttpCacheContext clientContext,
                                           org.apache.http.client.cache.HttpCacheEntry cacheEntry,
                                           org.apache.http.client.methods.HttpRequestWrapper conditionalRequest,
                                           java.util.Date requestDate,
                                           org.apache.http.HttpResponse httpResponse,
                                           java.util.Date responseDate)

      • staleIfErrorAppliesTo

        private boolean staleIfErrorAppliesTo​(int statusCode)

      • handleBackendResponse

        org.apache.http.client.methods.CloseableHttpResponse handleBackendResponse​(org.apache.http.HttpHost target,
                                                                           org.apache.http.client.methods.HttpRequestWrapper request,
                                                                           java.util.Date requestDate,
                                                                           java.util.Date responseDate,
                                                                           org.apache.http.client.methods.CloseableHttpResponse backendResponse)
                                                                    throws java.io.IOException
        Throws:
        java.io.IOException

      • storeRequestIfModifiedSinceFor304Response

        private void storeRequestIfModifiedSinceFor304Response​(org.apache.http.HttpRequest request,
                                                       org.apache.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.

      • alreadyHaveNewerCacheEntry

        private boolean alreadyHaveNewerCacheEntry​(org.apache.http.HttpHost target,
                                           org.apache.http.HttpRequest request,
                                           org.apache.http.HttpResponse backendResponse)