java.lang.Object
- org.apache.http.nio.protocol.HttpAsyncRequester

```
@Immutable
public class HttpAsyncRequester
extends java.lang.Object
```
HttpAsyncRequester is a utility class that can be used in conjunction with HttpAsyncRequestExecutor to initiate execution of asynchronous HTTP requests.

Since:

4.2

See Also:

HttpAsyncRequestExecutor

Constructor Summary

Constructors
Constructor	Description
`HttpAsyncRequester(HttpProcessor httpprocessor)`	Creates new instance of HttpAsyncRequester.
`HttpAsyncRequester(HttpProcessor httpprocessor, ConnectionReuseStrategy connReuseStrategy)`	Creates new instance of HttpAsyncRequester.
`HttpAsyncRequester(HttpProcessor httpprocessor, ConnectionReuseStrategy reuseStrategy, HttpParams params)`	Deprecated. (4.3) use `HttpAsyncRequester(HttpProcessor, ConnectionReuseStrategy)`

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`<T,E extends PoolEntry<HttpHost,NHttpClientConnection>> java.util.concurrent.Future<T>`	`execute(HttpAsyncRequestProducer requestProducer, HttpAsyncResponseConsumer<T> responseConsumer, E poolEntry, ConnPool<HttpHost,E> connPool, HttpContext context, FutureCallback<T> callback)`	Initiates asynchronous HTTP request execution.
`<T> java.util.concurrent.Future<T>`	`execute(HttpAsyncRequestProducer requestProducer, HttpAsyncResponseConsumer<T> responseConsumer, NHttpClientConnection conn)`	Initiates asynchronous HTTP request execution.
`<T> java.util.concurrent.Future<T>`	`execute(HttpAsyncRequestProducer requestProducer, HttpAsyncResponseConsumer<T> responseConsumer, NHttpClientConnection conn, HttpContext context)`	Initiates asynchronous HTTP request execution.
`<T> java.util.concurrent.Future<T>`	`execute(HttpAsyncRequestProducer requestProducer, HttpAsyncResponseConsumer<T> responseConsumer, NHttpClientConnection conn, HttpContext context, FutureCallback<T> callback)`	Initiates asynchronous HTTP request execution.
`<T,E extends PoolEntry<HttpHost,NHttpClientConnection>> java.util.concurrent.Future<T>`	`execute(HttpAsyncRequestProducer requestProducer, HttpAsyncResponseConsumer<T> responseConsumer, ConnPool<HttpHost,E> connPool)`	Initiates asynchronous HTTP request execution.
`<T,E extends PoolEntry<HttpHost,NHttpClientConnection>> java.util.concurrent.Future<T>`	`execute(HttpAsyncRequestProducer requestProducer, HttpAsyncResponseConsumer<T> responseConsumer, ConnPool<HttpHost,E> connPool, HttpContext context)`	Initiates asynchronous HTTP request execution.
`<T,E extends PoolEntry<HttpHost,NHttpClientConnection>> java.util.concurrent.Future<T>`	`execute(HttpAsyncRequestProducer requestProducer, HttpAsyncResponseConsumer<T> responseConsumer, ConnPool<HttpHost,E> connPool, HttpContext context, FutureCallback<T> callback)`	Initiates asynchronous HTTP request execution.
`protected void`	`log(java.lang.Exception ex)`	This method can be used to log I/O exception thrown while closing `Closeable` objects (such as `HttpConnection`}).

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

HttpAsyncRequester

@Deprecated
public HttpAsyncRequester(HttpProcessor httpprocessor,
                          ConnectionReuseStrategy reuseStrategy,
                          HttpParams params)

Deprecated.

(4.3) use

HttpAsyncRequester(HttpProcessor,
   ConnectionReuseStrategy)

HttpAsyncRequester

public HttpAsyncRequester(HttpProcessor httpprocessor,
                          ConnectionReuseStrategy connReuseStrategy)

Creates new instance of HttpAsyncRequester.

Since:: 4.3

HttpAsyncRequester
```
public HttpAsyncRequester(HttpProcessor httpprocessor)
```
Creates new instance of HttpAsyncRequester.

Since:

4.3

Method Detail

execute

public <T> java.util.concurrent.Future<T> execute(HttpAsyncRequestProducer requestProducer,
                                                  HttpAsyncResponseConsumer<T> responseConsumer,
                                                  NHttpClientConnection conn,
                                                  HttpContext context,
                                                  FutureCallback<T> callback)

Initiates asynchronous HTTP request execution.

Type Parameters:: T - the result type of request execution.
Parameters:: requestProducer - request producer callback.; responseConsumer - response consumer callaback.; conn - underlying HTTP connection.; context - HTTP context; callback - future callback.
Returns:: future representing pending completion of the operation.

execute

public <T> java.util.concurrent.Future<T> execute(HttpAsyncRequestProducer requestProducer,
                                                  HttpAsyncResponseConsumer<T> responseConsumer,
                                                  NHttpClientConnection conn,
                                                  HttpContext context)

Initiates asynchronous HTTP request execution.

Type Parameters:: T - the result type of request execution.
Parameters:: requestProducer - request producer callback.; responseConsumer - response consumer callaback.; conn - underlying HTTP connection.; context - HTTP context
Returns:: future representing pending completion of the operation.

execute

public <T> java.util.concurrent.Future<T> execute(HttpAsyncRequestProducer requestProducer,
                                                  HttpAsyncResponseConsumer<T> responseConsumer,
                                                  NHttpClientConnection conn)

Initiates asynchronous HTTP request execution.

Type Parameters:: T - the result type of request execution.
Parameters:: requestProducer - request producer callback.; responseConsumer - response consumer callaback.; conn - underlying HTTP connection.
Returns:: future representing pending completion of the operation.

execute

public <T,E extends PoolEntry<HttpHost,NHttpClientConnection>> java.util.concurrent.Future<T> execute(HttpAsyncRequestProducer requestProducer,
                                                                                                                  HttpAsyncResponseConsumer<T> responseConsumer,
                                                                                                                  ConnPool<HttpHost,E> connPool,
                                                                                                                  HttpContext context,
                                                                                                                  FutureCallback<T> callback)

Initiates asynchronous HTTP request execution.

Type Parameters:: T - the result type of request execution.; E - the connection pool entry type.
Parameters:: requestProducer - request producer callback.; responseConsumer - response consumer callaback.; connPool - pool of persistent reusable connections.; context - HTTP context; callback - future callback.
Returns:: future representing pending completion of the operation.

execute

public <T,E extends PoolEntry<HttpHost,NHttpClientConnection>> java.util.concurrent.Future<T> execute(HttpAsyncRequestProducer requestProducer,
                                                                                                                  HttpAsyncResponseConsumer<T> responseConsumer,
                                                                                                                  E poolEntry,
                                                                                                                  ConnPool<HttpHost,E> connPool,
                                                                                                                  HttpContext context,
                                                                                                                  FutureCallback<T> callback)

Initiates asynchronous HTTP request execution. This method automatically releases the given pool entry once request execution is completed (successfully or unsuccessfully).

Type Parameters:: T - the result type of request execution.; E - the connection pool entry type.
Parameters:: requestProducer - request producer callback.; responseConsumer - response consumer callaback.; poolEntry - leased pool entry. It will be automatically released back to the pool when execution is completed.; connPool - pool of persistent reusable connections.; context - HTTP context; callback - future callback.
Returns:: future representing pending completion of the operation.
Since:: 4.3

execute

public <T,E extends PoolEntry<HttpHost,NHttpClientConnection>> java.util.concurrent.Future<T> execute(HttpAsyncRequestProducer requestProducer,
                                                                                                                  HttpAsyncResponseConsumer<T> responseConsumer,
                                                                                                                  ConnPool<HttpHost,E> connPool,
                                                                                                                  HttpContext context)

Initiates asynchronous HTTP request execution.

Type Parameters:: T - the result type of request execution.; E - the connection pool entry type.
Parameters:: requestProducer - request producer callback.; responseConsumer - response consumer callaback.; connPool - pool of persistent reusable connections.; context - HTTP context
Returns:: future representing pending completion of the operation.

execute

public <T,E extends PoolEntry<HttpHost,NHttpClientConnection>> java.util.concurrent.Future<T> execute(HttpAsyncRequestProducer requestProducer,
                                                                                                                  HttpAsyncResponseConsumer<T> responseConsumer,
                                                                                                                  ConnPool<HttpHost,E> connPool)

Initiates asynchronous HTTP request execution.

Type Parameters:: T - the result type of request execution.; E - the connection pool entry type.
Parameters:: requestProducer - request producer callback.; responseConsumer - response consumer callaback.; connPool - pool of persistent reusable connections.
Returns:: future representing pending completion of the operation.

log
```
protected void log(java.lang.Exception ex)
```
This method can be used to log I/O exception thrown while closing Closeable objects (such as HttpConnection}).

Parameters:

ex - I/O exception thrown by Closeable.close()

Class HttpAsyncRequester

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Constructor Detail

HttpAsyncRequester

HttpAsyncRequester

HttpAsyncRequester

Method Detail

execute

execute

execute

execute

execute

execute

execute

log