/**
* Copyright (C) 2012 - present by OpenGamma Inc. and the OpenGamma group of companies
*
* Please see distribution for license.
*/
package com.opengamma.core.user;
import com.opengamma.DataNotFoundException;
import com.opengamma.core.change.ChangeProvider;
import com.opengamma.util.PublicSPI;
/**
* A source of users accessed by any OpenGamma application
* <p>
* This interface provides a simple view of users as used by most parts of the application.
* This may be backed by a full-featured user master, or by a much simpler data structure.
* <p>
* This interface is read-only.
* Implementations must be thread-safe.
*/
@PublicSPI
public interface UserSource extends ChangeProvider {
/**
* Gets the user account by OpenGamma user name.
*
* @param userName the user name, not null
* @return the user account with the specified user name, not null
* @throws DataNotFoundException if the user could not be found
* @throws RuntimeException if an error occurs
*/
UserAccount getAccount(String userName);
}