Hi,
I have added all existing hostobjects(except global System HO) of WSO2
Mashup Server to the Appdev environment. Several hostobjects such as
WSRequest, was modified to act independently of carbon environment. XHR
hostobject was also added which allows you to call sync/async HTTP calls
using httpcore-nio.
For the *.jss stuff, JSON support was also implemented. In a *.jss, we can
implement doGet, doPost etc. methods which corresponds to relevant HTTP
methods. So, when an HTTP request comes to a *.jss file, then request will
be dispatched to the relavant JavaScript method in the *.jss file. There,
you have access to the *request*, *response* and *session* objects.
If the request content type is json, then we can get content as a JSON by
accessing "*request.content*" property. Further, you can get any parameters
posted with the request by calling *request.getParameter()* method.
When we returning from a *.jss, you can either return directly a JSON
object which will be serialized and send to the client as a JSON content.
If you want, you can set custom headers to the response object and put
content using *response.write()* method. A sample *.jss content can be
found at the bottom.
Further, a new Rhino engine was created which allows to keep different top
level scopes for different envirenments. i.e. now we can allow to plug, any
product specific, tenant specific Hostobjects without affecting others.
Later this will be integrated into javax.script API.
In order to allow database calls, php-mysql api was proposed. But, it
doesn't seem like it utilizes Object Orientation which can be effectively
used in JavaScript in order to make it easier for the developer. php-mysql
api has a functional programming model. Also, we need to allow users to do
async database calls. i.e. register a function which will get executed once
the database return the result set. So, it would be better to have an API
as in XHR.
I will send a separate mail with a proposed mysql api covering above
requirements.
Following is the current request, response, session object APIs which
corresponds to relavant Java methods.
*session object API*
readonly property number created
readonly property number lastAccessed
readonly property isNew
property maxInactive
void put(string key, object value)
object get(string key)
void invalidate()
*request object API*
readonly property object content //this will return string content or json
content depending on the content type
readonly property string method
readonly property string protocol
readonly property string queryString
readonly property string contentType
readonly property number contentLength
string getHeader(string name)
string getParameter(string name)
*response object API*
property string content
property string contentType
property number status
void addHeader(string name, string value)
void getHeader(string name)
void write(object content) // JSON objects will be serialized to strings
void sendError(number code, string message)
void sendRedirect(string url)
*A Sample *.jss content*
function *doGet*(request, response, session) {
response.write("<html>");
response.write("<h2>" + request.getHeader("User-Agent") + "</h2>");
response.write("<h2>" + request.getParameter("lang") + "</h2>");
response.write("</html>");
}
function *doPost*(request, response, session) {
var obj = {
name : "ruchira",
age : 27,
address : {
number : "16",
city : "ahangama"
}
};
//if the request was JSON, then content property will return that JSON
object
//obj = request.content;
session.put("myObj", obj);
var o = session.get("myObj");
return o;
}
regards,
Ruchira
--
Ruchira Wageesha
Software Engineer - WSO2 Inc. www.wso2.com
Email: ruch...@wso2.com Blog: ruchirawagee...@blogspot.com
Mobile: +94775493444
Lean . Enterprise . Middleware
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