org.apache.hc.client5.http.impl.classic

## Class BackoffStrategyExec

- java.lang.Object
- - org.apache.hc.client5.http.impl.classic.BackoffStrategyExec

- All Implemented Interfaces:
    ExecChainHandler

      @Contract(threading=STATELESS)
      public final class BackoffStrategyExec
      extends Object
      implements ExecChainHandler

  Request execution handler in the classic request execution chain that is responsible for execution of an `ConnectionBackoffStrategy`.

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

  Since:
    4.3

- - ### Constructor Summary

    Constructors
    Constructor and Description
    `BackoffStrategyExec(ConnectionBackoffStrategy connectionBackoffStrategy, BackoffManager backoffManager)` Constructs a `BackoffStrategyExec` with the specified `ConnectionBackoffStrategy` and `BackoffManager`.

  - ### Method Summary

    All Methods Instance Methods Concrete Methods
    Modifier and Type | Method and Description
    --- | ---
    `ClassicHttpResponse` | `execute(ClassicHttpRequest request, ExecChain.Scope scope, ExecChain chain)` Executes the actual HTTP request.

    - ### Methods inherited from class java.lang.Object

      `clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

- - ### Constructor Detail

    - #### BackoffStrategyExec

          public BackoffStrategyExec(ConnectionBackoffStrategy connectionBackoffStrategy,
                                     BackoffManager backoffManager)

      Constructs a `BackoffStrategyExec` with the specified `ConnectionBackoffStrategy` and `BackoffManager`.
      Parameters:
        `connectionBackoffStrategy` - the strategy to determine whether to backoff based on the response or exception
        `backoffManager` - the manager responsible for applying backoff and probing actions to the HTTP routes

  - ### Method Detail

    - #### execute

          public ClassicHttpResponse execute(ClassicHttpRequest request,
                                             ExecChain.Scope scope,
                                             ExecChain chain)
                                      throws IOException,
                                             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:
        `IOException`
        `HttpException`

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