private UserDTO getUserByName(String userName) throws UserRetrievalException {
Authentication authenticator =
new Authentication() {
@Override
public Collection<? extends GrantedAuthority> getAuthorities() {
List<GrantedAuthority> auths = new ArrayList<GrantedAuthority>();
auths.add(new GrantedPermission("ROLE_USER_AUTHENTICATOR"));
return auths;
}
@Override
public Object getCredentials() {
return null;
}
@Override
public Object getDetails() {
return null;
}
@Override
public Object getPrincipal() {
return null;
}
@Override
public boolean isAuthenticated() {
return true;
}
@Override
public void setAuthenticated(boolean arg0) throws IllegalArgumentException {}
@Override
public String getName() {
return "AUTHENTICATOR";
}
};
SecurityContextHolder.getContext().setAuthentication(authenticator);
UserDTO user = userManager.getByName(userName);
SecurityContextHolder.getContext().setAuthentication(null);
return user;
}
