'use strict';

/**
 *+------------------------------------------------------------------------+
 *| Licensed Materials - Property of IBM
 *| IBM Cognos Products: Dashboard
 *| (C) Copyright IBM Corp. 2018
 *|
 *| US Government Users Restricted Rights - Use, duplication or disclosure
 *| restricted by GSA ADP Schedule Contract with IBM Corp.
 *+------------------------------------------------------------------------+
 */

define(['underscore', './VIPRDataRequestHandler'], function (_, VIPRHandler) {

	var VIPRCachedHandler = VIPRHandler.extend({

		init: function init(options) {
			VIPRCachedHandler.inherited('init', this, arguments);
			this.handler = options.handler;
		},

		// Implement IDataRequestHandler
		request: function request(_request) {

			if (!this.handler) {
				return VIPRCachedHandler.inherited('request', this, arguments);
			}

			var data = this.handler.getLastRequestData(_request.name);
			if (data) {
				var dataCopy = _.clone(data);
				this._requestComplete(_request, dataCopy);
			} else {
				return VIPRCachedHandler.inherited('request', this, arguments);
			}
		},

		_requestComplete: function _requestComplete(_request, data) {
			var shouldCache = false;
			return VIPRCachedHandler.inherited('_requestComplete', this, [_request, data, shouldCache]);
		},

		_requestFail: function _requestFail(_request, data) {
			var shouldCache = false;
			return VIPRCachedHandler.inherited('_requestFail', this, [_request, data, shouldCache]);
		},

		_invokeCallback: function _invokeCallback() /* name, data */{}

	});

	return VIPRCachedHandler;
});
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