define([
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"../_base/declare", "../_base/Deferred", "../_base/json", "../_base/lang", "../_base/xhr",
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"./RpcService"
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], function(declare, Deferred, json, lang, xhr, RpcService){
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// module:
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// dojo/rpc/JsonService
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return declare("dojo.rpc.JsonService", RpcService, {
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// summary:
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// TODOC
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bustCache: false,
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contentType: "application/json-rpc",
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lastSubmissionId: 0,
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callRemote: function(method, params){
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// summary:
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// call an arbitrary remote method without requiring it to be
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// predefined with SMD
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// method: string
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// the name of the remote method you want to call.
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// params: array
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// array of parameters to pass to method
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var deferred = new Deferred();
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this.bind(method, params, deferred);
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return deferred;
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},
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bind: function(method, parameters, deferredRequestHandler, url){
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// summary:
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// JSON-RPC bind method. Takes remote method, parameters,
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// deferred, and a url, calls createRequest to make a JSON-RPC
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// envelope and passes that off with bind.
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// method: string
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// The name of the method we are calling
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// parameters: array
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// The parameters we are passing off to the method
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// deferredRequestHandler: deferred
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// The Deferred object for this particular request
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var def = xhr.post({
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url: url||this.serviceUrl,
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postData: this.createRequest(method, parameters),
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contentType: this.contentType,
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timeout: this.timeout,
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handleAs: "json-comment-optional"
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});
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def.addCallbacks(this.resultCallback(deferredRequestHandler), this.errorCallback(deferredRequestHandler));
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},
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createRequest: function(method, params){
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// summary:
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// create a JSON-RPC envelope for the request
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// method: string
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// The name of the method we are creating the request for
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// params: array
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// The array of parameters for this request
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var req = { "params": params, "method": method, "id": ++this.lastSubmissionId };
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return json.toJson(req);
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},
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parseResults: function(/*anything*/obj){
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// summary:
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// parse the result envelope and pass the results back to
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// the callback function
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// obj: Object
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// Object containing envelope of data we receive from the server
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if(lang.isObject(obj)){
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if("result" in obj){
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return obj.result;
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}
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if("Result" in obj){
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return obj.Result;
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}
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if("ResultSet" in obj){
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return obj.ResultSet;
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}
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}
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return obj;
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}
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});
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});
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