Interface RequestMetadataCallback

public interface RequestMetadataCallback
The callback that receives the result of the asynchronous Credentials.getRequestMetadata(java.net.URI, java.util.concurrent.Executor, RequestMetadataCallback). Exactly one method should be called.

  • Method Summary

    Modifier and Type
    Method
    Description
    void
    onFailure(Throwable exception)
    Called when metadata generation failed.
    void
    onSuccess(Map<String, List<String>> metadata)
    Called when metadata is successfully produced.

  • Method Details

    • onSuccess

      void onSuccess(Map<String, List<String>> metadata)
      Called when metadata is successfully produced.
      Parameters:
      metadata - Metadata returned for the request.

    • onFailure

      void onFailure(Throwable exception)
      Called when metadata generation failed.
      Parameters:
      exception - The thrown exception which caused the request metadata fetch to fail.