org.apache.hc.core5.http

## Interface ContentLengthStrategy

- All Known Implementing Classes:
    DefaultContentLengthStrategy

      @Contract(threading=STATELESS)
      public interface ContentLengthStrategy

  Represents a strategy to determine length of the enclosed content entity based on properties of the HTTP message.
  Since:
    4.0

- - ### Field Summary

    Fields
    Modifier and Type | Field and Description
    --- | ---
    `static long` | `CHUNKED` Message body chunk coded
    `static long` | `UNDEFINED` Message body not explicitly delineated.

  - ### Method Summary

    Methods
    Modifier and Type | Method and Description
    --- | ---
    `long` | `determineLength(HttpMessage message)` Returns length of the given message in bytes.

- - ### Field Detail

    - #### CHUNKED

          static final long CHUNKED

      Message body chunk coded
      See Also:
        Constant Field Values

    - #### UNDEFINED

          static final long UNDEFINED

      Message body not explicitly delineated. Legal for HTTP response messages and illegal for HTTP request messages.
      See Also:
        Constant Field Values

  - ### Method Detail

    - #### determineLength

          long determineLength(HttpMessage message)
                               throws HttpException

      Returns length of the given message in bytes. The returned value must be a non-negative number, `CHUNKED` if the message is chunk coded, or `UNDEFINED` if the message is not explicitly delineated.
      Parameters:
        `message` - HTTP message
      Returns:
        content length, `UNDEFINED`, or `CHUNKED`
      Throws:
        `HttpException` - in case of HTTP protocol violation

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