wangtao
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fireInternet


			
				
					
						
						
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  <pre class="prettyprint lang-js"><span id='Ext-direct-JsonProvider'>/**
</span> * @class Ext.direct.JsonProvider

A base provider for communicating using JSON. This is an abstract class
and should not be instanced directly.

 * @markdown
 * @abstract
 */

Ext.define('Ext.direct.JsonProvider', {

    /* Begin Definitions */

    extend: 'Ext.direct.Provider',

    alias: 'direct.jsonprovider',

    uses: ['Ext.direct.ExceptionEvent'],

    /* End Definitions */

<span id='Ext-direct-JsonProvider-method-parseResponse'>   /**
</span>    * Parse the JSON response
    * @private
    * @param {Object} response The XHR response object
    * @return {Object} The data in the response.
    */
   parseResponse: function(response){
        if (!Ext.isEmpty(response.responseText)) {
            if (Ext.isObject(response.responseText)) {
                return response.responseText;
            }
            return Ext.decode(response.responseText);
        }
        return null;
    },

<span id='Ext-direct-JsonProvider-method-createEvents'>    /**
</span>     * Creates a set of events based on the XHR response
     * @private
     * @param {Object} response The XHR response
     * @return {Ext.direct.Event[]} An array of Ext.direct.Event
     */
    createEvents: function(response){
        var data = null,
            events = [],
            event,
            i = 0,
            len;

        try{
            data = this.parseResponse(response);
        } catch(e) {
            event = new Ext.direct.ExceptionEvent({
                data: e,
                xhr: response,
                code: Ext.direct.Manager.exceptions.PARSE,
                message: 'Error parsing json response: \n\n ' + data
            });
            return [event];
        }

        if (Ext.isArray(data)) {
            for (len = data.length; i &lt; len; ++i) {
                events.push(this.createEvent(data[i]));
            }
        } else {
            events.push(this.createEvent(data));
        }
        return events;
    },

<span id='Ext-direct-JsonProvider-method-createEvent'>    /**
</span>     * Create an event from a response object
     * @param {Object} response The XHR response object
     * @return {Ext.direct.Event} The event
     */
    createEvent: function(response){
        return Ext.create('direct.' + response.type, response);
    }
});</pre>
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