Class HttpAsyncCacheStorageAdaptor

java.lang.Object

org.apache.hc.client5.http.cache.HttpAsyncCacheStorageAdaptor

All Implemented Interfaces:

HttpAsyncCacheStorage

@Contract(threading=SAFE_CONDITIONAL)
public final class HttpAsyncCacheStorageAdaptor
extends Object
implements HttpAsyncCacheStorage

HttpAsyncCacheStorage implementation that emulates asynchronous behavior using an instance of classic HttpCacheStorage.

Since:

5.0

Field Summary

Fields

Modifier and Type	Field	Description
private final HttpCacheStorage	cacheStorage

Constructor Summary

Constructors

Constructor	Description
HttpAsyncCacheStorageAdaptor(HttpCacheStorage cacheStorage)

Method Summary

Modifier and Type	Method	Description
org.apache.hc.core5.concurrent.Cancellable	getEntries(Collection<String> keys, org.apache.hc.core5.concurrent.FutureCallback<Map<String, HttpCacheEntry>> callback)	Retrieves multiple cache entries stored under the given keys.
org.apache.hc.core5.concurrent.Cancellable	getEntry(String key, org.apache.hc.core5.concurrent.FutureCallback<HttpCacheEntry> callback)	Retrieves the cache entry stored under the given key or null if no entry exists under that key.
org.apache.hc.core5.concurrent.Cancellable	putEntry(String key, HttpCacheEntry entry, org.apache.hc.core5.concurrent.FutureCallback<Boolean> callback)	Store a given cache entry under the given key.
org.apache.hc.core5.concurrent.Cancellable	removeEntry(String key, org.apache.hc.core5.concurrent.FutureCallback<Boolean> callback)	Deletes/invalidates/removes any cache entries currently stored under the given key.
org.apache.hc.core5.concurrent.Cancellable	updateEntry(String key, HttpCacheCASOperation casOperation, org.apache.hc.core5.concurrent.FutureCallback<Boolean> callback)	Atomically applies the given callback to processChallenge an existing cache entry under a given key.

Methods inherited from class Object

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

Field Details

cacheStorage

private final HttpCacheStorage cacheStorage

Constructor Details

HttpAsyncCacheStorageAdaptor

public HttpAsyncCacheStorageAdaptor(HttpCacheStorage cacheStorage)

Method Details

putEntry

public org.apache.hc.core5.concurrent.Cancellable putEntry(String key,
 HttpCacheEntry entry,
 org.apache.hc.core5.concurrent.FutureCallback<Boolean> callback)

Description copied from interface: HttpAsyncCacheStorage

Store a given cache entry under the given key.

Specified by:

putEntry in interface HttpAsyncCacheStorage

Parameters:

key - where in the cache to store the entry

entry - cached response to store

callback - result callback

getEntry

public org.apache.hc.core5.concurrent.Cancellable getEntry(String key,
 org.apache.hc.core5.concurrent.FutureCallback<HttpCacheEntry> callback)

Description copied from interface: HttpAsyncCacheStorage

Retrieves the cache entry stored under the given key or null if no entry exists under that key.

Specified by:

getEntry in interface HttpAsyncCacheStorage

Parameters:

key - cache key

callback - result callback

Returns:

an HttpCacheEntry or null if no entry exists

removeEntry

public org.apache.hc.core5.concurrent.Cancellable removeEntry(String key,
 org.apache.hc.core5.concurrent.FutureCallback<Boolean> callback)

Description copied from interface: HttpAsyncCacheStorage

Deletes/invalidates/removes any cache entries currently stored under the given key.

Specified by:

removeEntry in interface HttpAsyncCacheStorage

Parameters:

key -

callback - result callback

updateEntry

public org.apache.hc.core5.concurrent.Cancellable updateEntry(String key,
 HttpCacheCASOperation casOperation,
 org.apache.hc.core5.concurrent.FutureCallback<Boolean> callback)

Description copied from interface: HttpAsyncCacheStorage

Atomically applies the given callback to processChallenge an existing cache entry under a given key.

Specified by:

updateEntry in interface HttpAsyncCacheStorage

Parameters:

key - indicates which entry to modify

casOperation - the CAS operation to perform.

callback - result callback

getEntries

public org.apache.hc.core5.concurrent.Cancellable getEntries(Collection<String> keys,
 org.apache.hc.core5.concurrent.FutureCallback<Map<String, HttpCacheEntry>> callback)

Description copied from interface: HttpAsyncCacheStorage

Retrieves multiple cache entries stored under the given keys. Some implementations may use a single bulk operation to do the retrieval.

Specified by:

getEntries in interface HttpAsyncCacheStorage

Parameters:

keys - cache keys

callback - result callback