Escalator (druid-server 29.0.1 API)

All Known Implementing Classes:

NoopEscalator
```
public interface Escalator
```
This interface provides methods needed for escalating internal system requests with priveleged authentication credentials. Each Escalator is associated with a specific authentication scheme, like Authenticators.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`AuthenticationResult`	`createEscalatedAuthenticationResult()`
`org.apache.druid.java.util.http.client.HttpClient`	`createEscalatedClient(org.apache.druid.java.util.http.client.HttpClient baseClient)`	Return a client that sends requests with the format/information necessary to authenticate successfully against this Escalator's authentication scheme using the identity of the internal system user.

- Method Detail
  - createEscalatedClient
```
org.apache.druid.java.util.http.client.HttpClient createEscalatedClient(org.apache.druid.java.util.http.client.HttpClient baseClient)
```
    Return a client that sends requests with the format/information necessary to authenticate successfully against this Escalator's authentication scheme using the identity of the internal system user.
    This HTTP client is used for internal communications between Druid nodes, such as when a broker communicates with a historical node during query processing.
    
    Parameters:
    
    baseClient - Base HTTP client for internal Druid communications
    
    Returns:
    
    metamx HttpClient that sends requests with the credentials of the internal system user
  - createEscalatedAuthenticationResult
```
AuthenticationResult createEscalatedAuthenticationResult()
```
    Returns:
    
    an AuthenticationResult representing the identity of the internal system user.