Hi everyone!
I need some help to build a client for geoserver wps...
Let me explain to you the whole context. I created a process that receives
a common json string (CDATA) and... process it.. (for now, it is just
sending the json string back).
I could test the process using the WPS Request Builder interface, and it
worked very fine =)
Now, I'm trying to develop a Javascript client to send a json string to
this wps process and get the string back... but it's not working =/
Here is what I'm doing:
var jsonDescription = JSON.stringify(array); *//Parsing a javascript array
to json string. *
var wpsRequest = new
WPSRequest("http://localhost:8080/geoserver/wps","gs:MyProcess","execute","POST",jsonDescription);
*//Object to define the request.*
var wpsInput = wpsRequest.wpsInput(); *//build the request using
jsonDescription
*wpsRequest.request(wpsInput); *//Does the request...*
Now, if you look inside my object:
//My object definition
function WPSRequest(url,process,processMethod, method, data){
this.urlRequest = url;
this.process = process;
this.processMethod = processMethod;
this.method = method;
this.data = data;
this.wpsInput = buildInput;
this.request = doRequest;
}
//function that does the request
function doRequest(input){
var urlreq = this.urlRequest;
var reqType = this.method;
alert(input);
$(function() {
*//The request using jquery ajax:*
$.ajax({
type: reqType, //POST
url: urlreq, //http://localhost:8080/geoserver/wps
data: input
}).done(function(result){
alert(result);
});
});
}
function buildInput(){
switch(this.processMethod){
case "execute":
var wpsBody = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>"
+ "<wps:Execute version=\"1.0.0\" service=\"WPS\"
xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\"; xmlns=\"
http://www.opengis.net/wps/1.0.0\"; xmlns:wfs=\"http://www.opengis.net/wfs\";
xmlns:wps=\"http://www.opengis.net/wps/1.0.0\"; xmlns:ows=\"
http://www.opengis.net/ows/1.1\"; xmlns:gml=\"http://www.opengis.net/gml\";
xmlns:ogc=\"http://www.opengis.net/ogc\"; xmlns:wcs=\"
http://www.opengis.net/wcs/1.1.1\"; xmlns:xlink=\"
http://www.w3.org/1999/xlink\"; xsi:schemaLocation=\"
http://www.opengis.net/wps/1.0.0
http://schemas.opengis.net/wps/1.0.0/wpsAll.xsd\";>"
+ "<ows:Identifier>" + this.process + "</ows:Identifier>"
+ "<wps:DataInputs>"
+ "<wps:Input>"
+ "<ows:Identifier>jsonDescription</ows:Identifier>"
+ "<wps:Data>"
+ "<wps:ComplexData
mimeType=\"application/json\"><![CDATA["+this.data+"]]></wps:ComplexData>"
+ "</wps:Data>"
+ "</wps:Input>"
+ "</wps:DataInputs>"
+ "<wps:ResponseForm>"
+ "<wps:RawDataOutput>"
+ "<ows:Identifier>result</ows:Identifier>"
+ "</wps:RawDataOutput>"
+ "</wps:ResponseForm>"
+ "</wps:Execute>";
wpsBody = this.data;
return wpsBody;
break;
}
} *//End of WPSRequest obj*
When executing, I get the following error:
*org.geoserver.platform.ServiceException: Could not determine geoserver
request from http request
org.geoserver.platform.AdvancedDispatchFilter$AdvancedDispatchHttpRequest@4e7db1c0
*
Some details:
If I copy and paste the result of "alert(input);" (doRequest function) in
Geoserver WPS Request Builder, the request works fine!
If I just change the URL from: *
http://localhost:8080/geoserver/wps
*to
*
http://localhost:8080/geoserver/ows?service=WPS&version=1.0.0&request=Execute&Identifier=gs:MyProcess
*
in my object definition, the request seens to work, once the error is:
"Parameter jsonDescription is missing but has min multiplicity > 0"
I belive the second URL is a GET request, and, once the param is not in
URL, the error is expected... this happens even if I keep the ajax type
param = POST
The question is: Am I missing some thing to get the post request to work??
If someone knows a simple example showing how to do some request like this,
it will help!
My next step will be to define a simple javascript ajax function to post to
url *http://localhost:8080/geoserver/wps *
Any help will be appreciated!
Thanks!
--
Rodrigo C. Antonialli
======================================
Campinas - SP - Brasil
LinkedIn: http://www.linkedin.com/in/rcaprofile
Contato: (19) 8136-2347
rcantonia...@gmail.com
Skype: rc_antonialli
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