com.sap.cloud.sdk.cloudplatform.connectivity

Class TimeScopedHttpClientCache

java.lang.Object

com.sap.cloud.sdk.cloudplatform.connectivity.HttpClientCache

com.sap.cloud.sdk.cloudplatform.connectivity.TimeScopedHttpClientCache

public class TimeScopedHttpClientCache
extends HttpClientCache

Implementation of the HttpClientCache, caching the HttpClients for the amount of time given in the constructor.

Constructor Summary

Constructors

Constructor and Description
TimeScopedHttpClientCache(long duration, TimeUnit unit) Caches the HttpClient for the given duration.

Method Summary

Modifier and Type	Method and Description
protected Optional<com.google.common.cache.Cache<CacheKey,org.apache.http.client.HttpClient>>	getCache() Getter for the cache to be used.
protected com.google.common.cache.CacheBuilder<Object,Object>	getCacheBuilder(long duration, TimeUnit unit)
protected CacheKey	getCacheKey() Method called in the #getClient(HttpClientFactory) method to create a CacheKey for no specific Destination.
protected CacheKey	getCacheKey(Destination destination) Method called in the #getClient(Destination, HttpClientFactory) method to create a CacheKey for the given Destination.

Methods inherited from class com.sap.cloud.sdk.cloudplatform.connectivity.HttpClientCache

getHttpClient, getHttpClient

Methods inherited from class java.lang.Object

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

Constructor Detail

TimeScopedHttpClientCache

public TimeScopedHttpClientCache(long duration,
                                 @Nonnull
                                 TimeUnit unit)

Caches the HttpClient for the given duration.

Parameters:

duration - The number of time units to store the HttpClients.

unit - The TimeUnit the duration is given in.

Method Detail

getCacheBuilder

protected com.google.common.cache.CacheBuilder<Object,Object> getCacheBuilder(long duration,
                                                                              @Nonnull
                                                                              TimeUnit unit)

getCache

@Nonnull
protected Optional<com.google.common.cache.Cache<CacheKey,org.apache.http.client.HttpClient>> getCache()

Getter for the cache to be used.

If the optional is empty a new HttpClient will be created and not cached.

Specified by:

getCache in class HttpClientCache

Returns:

An Optional that may contain the cache to be used by the HttpClientCache.getHttpClient(Destination, HttpClientFactory) method.

getCacheKey

@Nonnull
protected CacheKey getCacheKey(@Nonnull
                                        Destination destination)
                                 throws HttpClientInstantiationException

Method called in the #getClient(Destination, HttpClientFactory) method to create a CacheKey for the given Destination.

Specified by:

getCacheKey in class HttpClientCache

Parameters:

destination - The destination to create a CacheKey for.

Returns:

The CacheKey for destination.

Throws:

HttpClientInstantiationException - If there is an issue while accessing the cache key.

getCacheKey

@Nonnull
protected CacheKey getCacheKey()
                                 throws HttpClientInstantiationException

Method called in the #getClient(HttpClientFactory) method to create a CacheKey for no specific Destination.

Specified by:

getCacheKey in class HttpClientCache

Returns:

The CacheKey for a generic http client.

Throws:

HttpClientInstantiationException - If there is an issue while accessing the cache key.