parser/healthcareio/report/static/js/jx/rpc.js

131 lines
3.8 KiB
JavaScript
Executable File

/**
* (c) 2010 jxf - rpc module.
*
* The idea of behind this module is fetching data via an RPC-like call:
* . RESTful web services
* . XML/SOAP (not yet implemented)
* . Remote document (HTML; XML; JSON)
* . Local documents (HTML; XML; JSON)
* The module will return the data to a callback function should a parser be specified, the module will parse the data and return the parsed data to the callback function
* This allows the client code to minimize parsing should returned data be in a standard format.
* TODO:
* Improve on how returned data is handled (if necessary).
*/
if(!jx){
var jx = {}
}
/**
* These are a few parsers that can come in handy:
* urlparser: This parser is intended to break down a url parameter string in key,value pairs
*/
function urlparser(url){
if(url.toString().match(/\x3F/) != null){
url = url.split('\x3F')[1]
}
var p = url.split('&') ;
var r = {} ;
r.meta = [] ;
r.data = {} ;
var entry;
for(var i=0; i < p.length; i++){
entry = p[i] ;
key = (entry.match('(.*)=') !=null)? entry.match('(.*)=')[1]:null ;
value = (entry.match('=(.*)$') != null)? entry.match('=(.*)$')[1]:null
if(key != null){
key = key.replace('\x3F','')
r.meta.push(key) ;
r.data[key] = value ;
}
}
return r.data;
}
/**
* The following are corrections related to consistency in style & cohesion
*/
jx.ajax = {}
jx.ajax.get = {} ;
jx.ajax.debug = null;
jx.ajax.get.instance = function(){
var factory = function(){
this.obj = {}
this.obj.headers = {}
this.obj.async = true;
this.setHeader = function(key,value){
if(key.constructor != String && value == null){
this.obj.headers = key ;
}else{
this.obj.headers[key] = value;
}
}
this.setData = function(data){
this.obj.data = data;
}
this.setAsync = function(flag){
this.obj.async = (flag == true) ;
}
this.send = function(url,callback,method){
if(method == null){
method = 'GET'
}
p = jx.ajax.debug != null;
q = false;
if(p){
q = jx.ajax.debug[url] != null;
}
is_debuggable = p && q
if(is_debuggable){
x = {} ;
x.responseText = jx.ajax.debug [url] ;
callback(x)
}else{
var http = new XMLHttpRequest() ;
http.onreadystatechange = function(){
if(http.readyState == 4){
callback(http)
}
}
//
// In order to insure backward compatibility
// Previous versions allowed the user to set the variable on the wrapper (poor design)
if(this.async != null){
this.setAsync(this.async) ;
}
http.open(method,url,this.obj.async) ;
for(key in this.obj.headers){
value = this.obj.headers[key] ;
http.setRequestHeader(key,value)
}
http.send(this.obj.data)
}
}
this.put = function(url,callback){
this.send(url,callback,'PUT') ;
}
this.get = function(url,callback){
this.send(url,callback,'GET') ;
}
this.post = function(url,callback){
this.send(url,callback,'POST') ;
}
}//-- end of the factory method
return new factory() ;
}
//
// backward compatibility
jx.ajax.getInstance = jx.ajax.get.instance ;
var HttpClient = jx.ajax.get ;