Class HttpRequestRetryExec

  • All Implemented Interfaces:
    ExecChainHandler

    @Contract(threading=STATELESS)
    @Internal
    public class HttpRequestRetryExec
    extends java.lang.Object
    implements ExecChainHandler
    Request executor in the request execution chain that is responsible for making a decision whether a request that failed due to an I/O exception or received a specific response from the target server should be re-executed.

    Further responsibilities such as communication with the opposite endpoint is delegated to the next executor in the request execution chain.

    If this handler is active, pay particular attention to the placement of other handlers within the handler chain relative to the retry handler. Use ChainElement.RETRY as name when referring to this handler.

    If a custom handler is placed before the retry handler, the handler will see the initial request and the final outcome after the last retry. Elapsed time will account for any delays imposed by the retry handler.

    A custom handler which is placed after the retry handler will be invoked for each individual retry. Elapsed time will measure each individual http request, without the delay imposed by the retry handler.

    Since:
    5.0
    • Method Detail

      • execute

        public org.apache.hc.core5.http.ClassicHttpResponse execute​(org.apache.hc.core5.http.ClassicHttpRequest request,
                                                                    ExecChain.Scope scope,
                                                                    ExecChain chain)
                                                             throws java.io.IOException,
                                                                    org.apache.hc.core5.http.HttpException
        Description copied from interface: ExecChainHandler
        Executes the actual HTTP request. The handler can choose to return a response message or delegate request execution to the next element in the execution chain.
        Specified by:
        execute in interface ExecChainHandler
        Parameters:
        request - the actual request.
        scope - the execution scope .
        chain - the next element in the request execution chain.
        Throws:
        java.io.IOException
        org.apache.hc.core5.http.HttpException