public class AsyncRequester extends Object implements ConnectionInitiator
Constructor and Description |
---|
AsyncRequester(IOReactorConfig ioReactorConfig) |
Modifier and Type | Method and Description |
---|---|
void |
awaitShutdown(TimeValue waitTime) |
void |
close() |
Future<IOSession> |
connect(NamedEndpoint remoteEndpoint,
SocketAddress remoteAddress,
SocketAddress localAddress,
Timeout timeout,
Object attachment,
FutureCallback<IOSession> callback)
Requests a connection to a remote host.
|
protected void |
execute(IOEventHandlerFactory ioEventHandlerFactory) |
IOReactorStatus |
getStatus() |
void |
initiateShutdown() |
Future<IOSession> |
requestSession(HttpHost host,
Timeout timeout,
FutureCallback<IOSession> callback) |
void |
shutdown(TimeValue graceTime) |
public AsyncRequester(IOReactorConfig ioReactorConfig)
public Future<IOSession> requestSession(HttpHost host, Timeout timeout, FutureCallback<IOSession> callback)
public Future<IOSession> connect(NamedEndpoint remoteEndpoint, SocketAddress remoteAddress, SocketAddress localAddress, Timeout timeout, Object attachment, FutureCallback<IOSession> callback)
ConnectionInitiator
Opening a connection to a remote host usually tends to be a time
consuming process and may take a while to complete. One can monitor and
control the process of session initialization by means of the
Future
interface.
There are several parameters one can use to exert a greater control over the process of session initialization:
A non-null local socket address parameter can be used to bind the socket to a specific local address.
An attachment object can added to the new session's context upon initialization. This object can be used to pass an initial processing state to the protocol handler.
It is often desirable to be able to react to the completion of a session
request asynchronously without having to wait for it, blocking the
current thread of execution. One can optionally provide an implementation
FutureCallback
instance to get notified of events related
to session requests, such as request completion, cancellation, failure or
timeout.
connect
in interface ConnectionInitiator
remoteEndpoint
- name of the remote host.remoteAddress
- remote socket address.localAddress
- local socket address. Can be null
,
in which can the default local address and a random port will be used.timeout
- connect timeout.attachment
- the attachment object. Can be null
.callback
- interface. Can be null
.protected void execute(IOEventHandlerFactory ioEventHandlerFactory) throws IOException
IOException
public IOReactorStatus getStatus()
public void awaitShutdown(TimeValue waitTime) throws InterruptedException
InterruptedException
public void initiateShutdown()
public void shutdown(TimeValue graceTime)
public void close() throws Exception
close
in interface AutoCloseable
Exception
Copyright © 2005–2021 The Apache Software Foundation. All rights reserved.