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

Class CachedHttpResponseGenerator

java.lang.Object

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

class CachedHttpResponseGenerator
extends java.lang.Object

Rebuilds an HttpResponse from a HttpCacheEntry

Field Summary

Fields

Modifier and Type	Field	Description
private CacheValidityPolicy	validityStrategy

Constructor Summary

Constructors

Constructor	Description
CachedHttpResponseGenerator(CacheValidityPolicy validityStrategy)

Method Summary

Modifier and Type	Method	Description
private void	addMissingContentLengthHeader(org.apache.hc.core5.http.HttpResponse response, byte[] body)
(package private) SimpleHttpResponse	generateNotModifiedResponse(HttpCacheEntry entry)	Generate a 304 - Not Modified response from the HttpCacheEntry.
(package private) SimpleHttpResponse	generateResponse(org.apache.hc.core5.http.HttpRequest request, HttpCacheEntry entry)	If it is legal to use cached content in response response to the HttpRequest then generate an HttpResponse based on HttpCacheEntry.
SimpleHttpResponse	getErrorForRequest(RequestProtocolError errorCheck)	Extract error information about the HttpRequest telling the 'caller' that a problem occurred.
private boolean	responseShouldContainEntity(org.apache.hc.core5.http.HttpRequest request, HttpCacheEntry cacheEntry)
private boolean	transferEncodingIsPresent(org.apache.hc.core5.http.HttpResponse response)

Methods inherited from class java.lang.Object

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

Field Detail

validityStrategy

private final CacheValidityPolicy validityStrategy

Constructor Detail

CachedHttpResponseGenerator

CachedHttpResponseGenerator(CacheValidityPolicy validityStrategy)

Method Detail

generateResponse

SimpleHttpResponse generateResponse(org.apache.hc.core5.http.HttpRequest request,
                                    HttpCacheEntry entry)
                             throws ResourceIOException

If it is legal to use cached content in response response to the HttpRequest then generate an HttpResponse based on HttpCacheEntry.

Parameters:

request - HttpRequest to generate the response for

entry - HttpCacheEntry to transform into an HttpResponse

Returns:

SimpleHttpResponse constructed response

Throws:

ResourceIOException

generateNotModifiedResponse

SimpleHttpResponse generateNotModifiedResponse(HttpCacheEntry entry)

Generate a 304 - Not Modified response from the HttpCacheEntry. This should be used to respond to conditional requests, when the entry exists or has been re-validated.

addMissingContentLengthHeader

private void addMissingContentLengthHeader(org.apache.hc.core5.http.HttpResponse response,
                                           byte[] body)

transferEncodingIsPresent

private boolean transferEncodingIsPresent(org.apache.hc.core5.http.HttpResponse response)

responseShouldContainEntity

private boolean responseShouldContainEntity(org.apache.hc.core5.http.HttpRequest request,
                                            HttpCacheEntry cacheEntry)

getErrorForRequest

public SimpleHttpResponse getErrorForRequest(RequestProtocolError errorCheck)

Extract error information about the HttpRequest telling the 'caller' that a problem occurred.

Parameters:

errorCheck - What type of error should I get

Returns:

The HttpResponse that is the error generated