FixServer

FIX Server

This section explains how to program a FIX server(FIX session acceptor).

FIX Acceptor types

Currently FIX server can be two types:

1. Single Server Acceptor
2. Multi Server Acceptor

Single Server Acceptor

Supports one acceptor per connection(server socket). First we create session id. FIX session acceptor needs to know bind host and bind port on which it will listen for inbound connections:

SessionIDBean sessionID = new SessionIDBean("Receiver", "Sender");
ServerSocketSessionAcceptor acceptor = 
        new SingleSessionAcceptor("localhost", 9999, FixVersion.FIX44, sessionID, new FixAcceptorSettings());

Multi Server Acceptor

Supports several acceptors per connection(server socket). First we create session manager. Session manager needs to know how much inbound connections simultaneously to handle and which session ids to use:

SessionManager manager = new SimpleSessionManager(10);
SessionIDBean sessionID = new SessionIDBean("Receiver", "Sender");
manager.add(sessionID, new SampleSessionState());

You can add session id on fly as well. Further we create simple factory for creation of session acceptors(communicators):

ObjectFactory<FixSessionAcceptor> acceptorFactory = new ObjectFactory<FixSessionAcceptor>(){
  @Override
  public FixSessionAcceptor create() {
    return new FixSessionAcceptor(FixVersion.FIX44, new FixAcceptorSettings());
  }
};

FIX session acceptor needs to know bind host and bind port on which it will listen for inbound connections as well as logon timeout and logout timeout:

ServerSocketSessionAcceptor acceptor = new MultiSessionAcceptor("localhost", 9999, 1000, 1000, acceptorFactory, manager);

FIX Session instances that we created implement Runnable:

new Thread(acceptor).start();

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