org.apache.calcite.avatica.server

Interface DoAsRemoteUserCallback

public interface DoAsRemoteUserCallback

A callback which the server can invoke to allow implementations to control additional logic about whether or not a client from a specific host should be run.

For example, complex logic could be supplied to control whether clientA from host1 is permitted to execute queries. This logic is deferred upon the user to implement.

Method Summary

Modifier and Type	Method and Description
<T> T	doAsRemoteUser(String remoteUserName, String remoteAddress, Callable<T> action) Invokes the given action as the remoteUserName.

Method Detail

doAsRemoteUser

<T> T doAsRemoteUser(String remoteUserName,
                     String remoteAddress,
                     Callable<T> action)
              throws Exception

Invokes the given action as the remoteUserName.

Parameters:

remoteUserName - The remote user making a request to the Avatica server.

remoteAddress - The address the remote user is making the request from.

action - The operation the Avatica server wants to run as remoteUserName.

Returns:

The result from the Callable.

Throws:

Exception