Sip Server doesn't use Authentication plugins

package com.hitelnet.plugins;

import com.brekeke.common.* ;
import com.brekeke.net.usrdir.* ;

public class TbUserDir implements UserDir
{
Envrnmt env = null ;
Logging log = null ;
LogLevel loglevel = null ;


// init
public void init( Envrnmt env, Logging log ) throws Exception
{
this.env = env ;
this.log = log ;

// Log level setting
// It is obtained from the variable net.userdir.loglevel.console
loglevel = new LogLevel( 255,env.getInt( "net.userdir.loglevel.file", LogLevel.LOG_LEVEL_ALL ) ) ;
//loglevel = new LogLevel( 0,255) ;
this.log.print( "TbUserDir: start\n", loglevel, LogLevel.LOG_LEVEL_ALL ) ;

//
// Initialization of database connection, etc.
//
}
// lookup
public UserRecord lookup( String username, String method, String destination, String authinfo ) throws Exception
{
//
// database inquiry for a user information by username key.
//
log.print( "TbUserDir: lookup user\n", loglevel, LogLevel.LOG_LEVEL_ALL );
boolean the_user_info_not_found = false;
boolean the_user_doesnot_have_the_authority_to_execute_the_method = false;

if ( the_user_info_not_found ) {
return ( null ) ;
}

if ( the_user_doesnot_have_the_authority_to_execute_the_method ) {
return ( null ) ;
}

//UserRecord record = new UserRecord() ;
//record.username = username ;
//record.password = "1234567";
//record.bAuthorized = false;

return ( null ) ;
}

public int getCount() throws Exception
{
return 0;
}

public boolean remove( String username ) throws Exception
{
return true;
}

public boolean remove( UserRecord record ) throws Exception
{
return true;
}

public boolean append( UserRecord record ) throws Exception
{
return true;
}

public void close() throws Exception
{
}


}