Top Description Methods
org.apache.hc.client5.http.io

public Interface HttpClientConnectionManager

extends ModalCloseable
Known Direct Implementers
org.apache.hc.client5.http.impl.io.BasicHttpClientConnectionManager, org.apache.hc.client5.http.impl.io.PoolingHttpClientConnectionManager
Imports
java.io.IOException, org.apache.hc.client5.http.HttpRoute, org.apache.hc.core5.http.protocol.HttpContext, org.apache.hc.core5.io.ModalCloseable, org.apache.hc.core5.util.TimeValue, .Timeout

Represents a manager of persistent client connections.

The purpose of an HTTP connection manager is to serve as a factory for new HTTP connections, manage persistent connections and synchronize access to persistent connections making sure that only one thread of execution can have access to a connection at a time.

Implementations of this interface must be thread-safe. Access to shared data must be synchronized as methods of this interface may be executed from multiple threads.

Since
4.3

Method Summary

Modifier and TypeMethod and Description
public void
connect(ConnectionEndpoint
the managed endpoint.
endpoint
,
TimeValue
connect timeout.
connectTimeout
,
HttpContext
the actual HTTP context.
context
)

Connects the endpoint to the initial hop (connection target in case of a direct route or to the first proxy hop in case of a route via a proxy or multiple proxies).

public LeaseRequest
lease(String
unique operation ID or null.
id
,
HttpRoute
HTTP route of the requested connection.
route
,
Timeout
lease request timeout.
requestTimeout
,
Object
expected state of the connection or null if the connection is not expected to carry any state.
state
)

Returns a LeaseRequest object which can be used to obtain a ConnectionEndpoint to cancel the request by calling LeaseRequest#cancel().

public void
release(ConnectionEndpoint
the managed endpoint.
endpoint
,
Object
the new connection state of null if state-less.
newState
,
TimeValue
the duration of time this connection is valid for reuse.
validDuration
)

Releases the endpoint back to the manager making it potentially re-usable by other consumers.

public void
upgrade(ConnectionEndpoint
the managed endpoint.
endpoint
,
HttpContext
the actual HTTP context.
context
)

Upgrades transport security of the given endpoint by using the TLS security protocol.

Inherited from org.apache.hc.core5.io.ModalCloseable:
close

Method Detail

connectback to summary
public void connect(ConnectionEndpoint endpoint, TimeValue connectTimeout, HttpContext context) throws IOException

Connects the endpoint to the initial hop (connection target in case of a direct route or to the first proxy hop in case of a route via a proxy or multiple proxies).

Parameters
endpoint:ConnectionEndpoint

the managed endpoint.

connectTimeout:TimeValue

connect timeout.

context:HttpContext

the actual HTTP context.

leaseback to summary
public LeaseRequest lease(String id, HttpRoute route, Timeout requestTimeout, Object state)

Returns a LeaseRequest object which can be used to obtain a ConnectionEndpoint to cancel the request by calling LeaseRequest#cancel().

Please note that newly allocated endpoints can be leased disconnected. The consumer of the endpoint is responsible for fully establishing the route to the endpoint target by calling connect(ConnectionEndpoint, TimeValue, HttpContext) in order to connect directly to the target or to the first proxy hop, and optionally calling upgrade(ConnectionEndpoint, HttpContext) method to upgrade the underlying transport to Transport Layer Security after having executed a CONNECT method to all intermediate proxy hops.

Parameters
id:String

unique operation ID or null.

route:HttpRoute

HTTP route of the requested connection.

requestTimeout:Timeout

lease request timeout.

state:Object

expected state of the connection or null if the connection is not expected to carry any state.

Since
5.0
releaseback to summary
public void release(ConnectionEndpoint endpoint, Object newState, TimeValue validDuration)

Releases the endpoint back to the manager making it potentially re-usable by other consumers. Optionally, the maximum period of how long the manager should keep the connection alive can be defined using validDuration and timeUnit parameters.

Parameters
endpoint:ConnectionEndpoint

the managed endpoint.

newState:Object

the new connection state of null if state-less.

validDuration:TimeValue

the duration of time this connection is valid for reuse.

upgradeback to summary
public void upgrade(ConnectionEndpoint endpoint, HttpContext context) throws IOException

Upgrades transport security of the given endpoint by using the TLS security protocol.

Parameters
endpoint:ConnectionEndpoint

the managed endpoint.

context:HttpContext

the actual HTTP context.