Package org.dspace.service.impl

Class HttpConnectionPoolService

java.lang.Object

org.dspace.service.impl.HttpConnectionPoolService

@Named
@Singleton
public class HttpConnectionPoolService
extends Object

Factory for HTTP clients sharing a pool of connections.

You may create multiple pools. Each is identified by a configuration "prefix" (passed to the constructor) which is used to create names of properties which will configure the pool. The properties are:

PREFIX.client.keepAlive

Default keep-alive time for open connections, in milliseconds

PREFIX.client.maxTotalConnections

maximum open connections

PREFIX.client.maxPerRoute

maximum open connections per service instance

PREFIX.client.timeToLive

maximum lifetime of a pooled connection, in seconds

Author:

Mark H. Wood

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
class	HttpConnectionPoolService.IdleConnectionMonitorThread	Clean up stale connections.
class	HttpConnectionPoolService.KeepAliveStrategy	A connection keep-alive strategy that obeys the Keep-Alive header and applies a default if none is given.

Constructor Summary

Constructors

Constructor	Description
HttpConnectionPoolService(String configPrefix)	Construct a pool for a given set of configuration properties.

Method Summary

Modifier and Type	Method	Description
org.apache.http.impl.client.CloseableHttpClient	getClient()	Create an HTTP client which uses a pooled connection.
protected void	init()

Methods inherited from class java.lang.Object

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

Constructor Detail

HttpConnectionPoolService

public HttpConnectionPoolService(String configPrefix)

Construct a pool for a given set of configuration properties.

Parameters:

configPrefix - Configuration property names will begin with this.

Method Detail

init

@PostConstruct
protected void init()

getClient

public org.apache.http.impl.client.CloseableHttpClient getClient()

Create an HTTP client which uses a pooled connection.

Returns:

the client.