org.apache.hc.client5.http.async

接口 AsyncExecChainHandler

所有已知实现类:

AsyncConnectExec, AsyncHttpRequestRetryExec, AsyncProtocolExec, AsyncRedirectExec, H2AsyncMainClientExec

@Contract(threading=STATELESS)
public interface AsyncExecChainHandler

Abstract request execution handler in an asynchronous client side request execution chain. Handlers can either be a decorator around another element that implements a cross cutting aspect or a self-contained executor capable of producing a response for the given request.

For information regarding the handler chain behaviour in case of a request re-execution, please refer to the AsyncHttpRequestRetryExec javadoc.

Well known request execution handlers could be referred to by name using one of the ChainElement enum values.

从以下版本开始:

5.0

另请参阅:

ChainElement, HttpAsyncClientBuilder.addExecInterceptorFirst(String, AsyncExecChainHandler), HttpAsyncClientBuilder.addExecInterceptorBefore(String, String, AsyncExecChainHandler), HttpAsyncClientBuilder.addExecInterceptorAfter(String, String, AsyncExecChainHandler), HttpAsyncClientBuilder.addExecInterceptorLast(String, AsyncExecChainHandler)

方法概要

限定符和类型	方法和说明
void	execute(HttpRequest request, AsyncEntityProducer entityProducer, AsyncExecChain.Scope scope, AsyncExecChain chain, AsyncExecCallback asyncExecCallback) Executes the actual HTTP request.

方法详细资料

execute

void execute(HttpRequest request,
             AsyncEntityProducer entityProducer,
             AsyncExecChain.Scope scope,
             AsyncExecChain chain,
             AsyncExecCallback asyncExecCallback)
      throws HttpException,
             IOException

Executes the actual HTTP request. The handler can choose to return a response message immediately inside the call or asynchronously at some later point or delegate request execution to the next element in the execution chain.

参数:

request - the actual request.

entityProducer - the request entity producer or null if the request does not enclose an entity.

scope - the execution scope .

chain - the next element in the request execution chain.

asyncExecCallback - the execution callback.

抛出:

HttpException

IOException