LithiumSSOClient Help

I'm following the instructions given at http://community.lithium.com/t5/Community-API/bd-p/developers-rest-api?page=authentication.

All I want to do is get an SSO Auth Token, authenticate, and then get a session key so that I can use my API user to then subscribe to certain events, namely UserCreate.  When a user is created, I wish to automatically send out a welcome email - pretty simple use case.

However, I'm having some trouble understanding everything in the documentation.  I've copied over the example LithiumSSOLogin class and am trying to change that for my purposes.  So, I know I need to get the SSO Key from our community manager and replace the example one in the code.  I've also replaced the SSO_CLIENT_DOMAIN and COMMUNITY_URL with our own.

However, I do not undertand what the SSO_CLIENT_ID and SSO_SERVER_ID are supposed to be - are these the names of the computers/servers making and receiving the requests?  Also, is the CALLER_PUBLIC_IP supposed to be the IP address of the computer from which I'm making these rest calls?  And then lastly, I'm not sure I understand what the ssoid parameter is when making the LithiumSSOClient.getLithiumCookieValue() call.  The API user already exists within our community and has been granted appropriate priviliges for making REST calls; that user ID is what I'm passing in for the login parameter.

If anyone can help me through this, I'd appreciate it.  Seems like it should be pretty easy and feels like I'm pretty close.

	private static String CALLER_PUBLIC_IP = "xxx.xxx.xx.xxx";

	private static final void init() {

		SSO_KEY = new Key("sso_key");
		SSO_CLIENT_ID = "apac_client_001";
		SSO_CLIENT_DOMAIN = ".stage.lithium.com";
		SSO_SERVER_ID = "apac_server_001";
		COMMUNITY_URL = "http://community.stage.company.com";
		CALLER_PUBLIC_IP = "xxx.xxx.xx.xxx";
	}

	// This java class assumes that Lithium SSO (Cookie-based) is configured in
	// Lithium community.

	public static void main(String[] args) {

		init();
		debug("start");

		// STEP 1: Got SSO Token from SSO Client
		String ssoid = "communityapi_sso_ssoid_new";// "hgu_sso_ssoid_new";
		String login = "communityapi";
		String ssoAuthTokenString = null;

		try {

			LithiumSSOClient ssoClient = LithiumSSOClient.getInstance(
					SSO_KEY.getRaw(), SSO_CLIENT_ID, SSO_CLIENT_DOMAIN,
					SSO_SERVER_ID);

			ssoAuthTokenString = ssoClient.getLithiumCookieValue(ssoid, login,
					"", "", "", "", CALLER_PUBLIC_IP);
			debug("ssoAuthTokenString: " + ssoAuthTokenString);
		} catch (SSOException e) {
			debug(e);
			return;
		}

		// STEP 2: Call SSO authentication URL to get SSO session key
		String restURL = COMMUNITY_URL
				+ "/restapi/vc/authentication/sessions/login?sso.authentication_token="
				+ ssoAuthTokenString;
		String s = httpGet(restURL);
		String restSessionKey = extractSessionKeyFromXML(s);

		// STEP 3: Call REST with a session key
		String vcURL = COMMUNITY_URL + "/restapi/vc?restapi.session_key="
				+ restSessionKey;

		httpGet(vcURL);
		debug("done");
	}