Page Speed Optimization Libraries
1.2.24.1
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Public Member Functions | |
UrlInputResource (RewriteDriver *rewrite_driver, const RewriteOptions *options, const ContentType *type, const StringPiece &url) | |
virtual bool | IsValidAndCacheable () const |
virtual GoogleString | url () const |
Gets the absolute URL of the resource. | |
virtual const RewriteOptions * | rewrite_options () const |
virtual void | Freshen (FreshenCallback *callback, MessageHandler *handler) |
Protected Member Functions | |
virtual bool | Load (MessageHandler *message_handler) |
virtual void | LoadAndCallback (NotCacheablePolicy not_cacheable_policy, AsyncCallback *callback, MessageHandler *message_handler) |
virtual void net_instaweb::UrlInputResource::Freshen | ( | FreshenCallback * | callback, |
MessageHandler * | handler | ||
) | [virtual] |
Freshen a soon-to-expire resource so that we minimize the number of cache misses when serving live traffic. Note that callback may be NULL, and all subclasses must handle this.
Reimplemented from net_instaweb::Resource.
virtual bool net_instaweb::UrlInputResource::IsValidAndCacheable | ( | ) | const [virtual] |
Checks if the contents are loaded and valid and also if the resource is up-to-date and cacheable by a proxy like us.
Reimplemented from net_instaweb::Resource.
virtual bool net_instaweb::UrlInputResource::Load | ( | MessageHandler * | message_handler | ) | [protected, virtual] |
Load the resource asynchronously, storing ResponseHeaders and contents in cache. Returns true, if the resource is already loaded or loaded synchronously. Never reports uncacheable resources.
Implements net_instaweb::Resource.
virtual void net_instaweb::UrlInputResource::LoadAndCallback | ( | NotCacheablePolicy | not_cacheable_policy, |
AsyncCallback * | callback, | ||
MessageHandler * | message_handler | ||
) | [protected, virtual] |
Same as Load, but calls a callback when finished. The ResourcePtr used to construct 'callback' must be the same as the resource used to invoke this method. If the resource is uncacheable, will only return true if not_cacheable_policy == kLoadEvenIfNotCacheable.
Reimplemented from net_instaweb::Resource.
virtual const RewriteOptions* net_instaweb::UrlInputResource::rewrite_options | ( | ) | const [inline, virtual] |
Obtain rewrite options for this. Any resources which return true for IsCacheable() but don't unconditionally return true for loaded() must override this in a useful way. Used in cache invalidation.
Implements net_instaweb::Resource.