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/*************************************************
*
* = PACKAGE
* ACE.Connection
*
* = FILENAME
* AcceptStrategy.java
*
*@author Prashant Jain
*
*************************************************/
package ACE.Connection;
import java.io.*;
import java.net.*;
import ACE.SOCK_SAP.*;
/**
* <hr>
* <h2>SYNOPSIS</h2>
*<blockquote>
* Interface for specifying a passive connection
* acceptance strategy for a
* <a href="ACE.Connection.SvcHandler.html"><tt>SvcHandler</tt></a>
* .
*</blockquote>
*
* <h2>DESCRIPTION</h2>
*
*<blockquote>
* This class provides a strategy that manages passive
* connection setup for an application, and can be extended
* to define new strategies.
*</blockquote>
*
* @see SvcHandler
* @see Acceptor
*/
public class AcceptStrategy
{
/**
* Create an instance of Accept Strategy.
*@param port port number where the server will listen for connections
*@exception IOException couldn't open port
*/
AcceptStrategy (int port) throws IOException
{
this.open (port);
}
/**
* Initialize AcceptStrategy.
*@param port port number where the server will listen for connections
*@exception IOException couldn't open port
*/
public void open (int port) throws IOException
{
// Create a new SOCK_Acceptor to accept client connections
this.sockAcceptor_ = new SOCKAcceptor (port);
}
/**
* Accept connections into the SvcHandler. Note that subclasses
* should overwrite this method to provide a different accept
* strategy.
*@param sh Svc Handler in which to accept the connection
*@exception SocketException
*@exception IOException
*@return 0
*/
public int acceptSvcHandler (SvcHandler sh) throws
SocketException, IOException
{
// Create a new stream
SOCKStream sockStream = new SOCKStream ();
// Block in accept. Returns when a connection shows up
this.sockAcceptor_.accept (sockStream);
// Set the streams for the new handler
sh.setHandle (sockStream);
return 0;
}
// Our connection acceptance factory
private SOCKAcceptor sockAcceptor_;
}
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