- Author:
- David Nickerson <nickerso@users.sourceforge.net>
- Date:
- 2009-07-07 17:11:57+12:00
- Desc:
- update for modified HH graphs in tutorial description
- Permanent Source URI:
- https://models.physiomeproject.org/workspace/a1/rawfile/98909b01e6b21653a5e1cd28865dd259c586d490/dojo-presentation/js/dojo/dojox/rpc/Client.js
dojo.provide("dojox.rpc.Client");
// Provide extra headers for robust client and server communication
(function() {
dojo._defaultXhr = dojo.xhr;
dojo.xhr = function(method,args){
var headers = args.headers = args.headers || {};
// set the client id, this can be used by servers to maintain state information with the
// a specific client. Many servers rely on sessions for this, but sessions are shared
// between tabs/windows, so this is not appropriate for application state, it
// really only useful for storing user authentication
headers["X-Client-Id"] = dojox._clientId;
// set the sequence id. HTTP is non-deterministic, message can arrive at the server
// out of order. In complex Ajax applications, it may be more to ensure that messages
// can be properly sequenced deterministically. This applies a sequency id to each
// XHR request so that the server can order them.
headers["X-Seq-Id"] = dojox._reqSeqId = (dojox._reqSeqId||0)+1;
return dojo._defaultXhr.apply(dojo,arguments);
}
})();
// initiate the client id to a good random number
dojox._clientId = (Math.random() + '').substring(2,14) + (Math.random() + '').substring(2,14);
