happstack-yui-7373.5.2: bundle/datasource-local/datasource-local-coverage.js
/*
YUI 3.7.3 (build 5687)
Copyright 2012 Yahoo! Inc. All rights reserved.
Licensed under the BSD License.
http://yuilibrary.com/license/
*/
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YUI.add('datasource-local', function (Y, NAME) {
/**
* The DataSource utility provides a common configurable interface for widgets to
* access a variety of data, from JavaScript arrays to online database servers.
*
* @module datasource
* @main datasource
*/
/**
* Provides the base DataSource implementation, which can be extended to
* create DataSources for specific data protocols, such as the IO Utility, the
* Get Utility, or custom functions.
*
* @module datasource
* @submodule datasource-local
*/
/**
* Base class for the DataSource Utility.
* @class DataSource.Local
* @extends Base
* @constructor
*/
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var LANG = Y.Lang,
DSLocal = function() {
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DSLocal.superclass.constructor.apply(this, arguments);
};
/////////////////////////////////////////////////////////////////////////////
//
// DataSource static properties
//
/////////////////////////////////////////////////////////////////////////////
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Y.mix(DSLocal, {
/**
* Class name.
*
* @property NAME
* @type String
* @static
* @final
* @value "dataSourceLocal"
*/
NAME: "dataSourceLocal",
/////////////////////////////////////////////////////////////////////////////
//
// DataSource Attributes
//
/////////////////////////////////////////////////////////////////////////////
ATTRS: {
/**
* @attribute source
* @description Pointer to live data.
* @type MIXED
* @default null
*/
source: {
value: null
}
},
/**
* Global transaction counter.
*
* @property _tId
* @type Number
* @static
* @private
* @default 0
*/
_tId: 0,
/**
* Global in-progress transaction objects.
*
* @property transactions
* @type Object
* @static
*/
transactions: {},
/**
* Returns data to callback.
*
* @method issueCallback
* @param e {EventFacade} Event Facade.
* @param caller {DataSource} Calling DataSource instance.
* @static
*/
issueCallback: function (e, caller) {
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if (payload.error) {
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callback = callbacks && callbacks.failure;
}
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if (callback) {
//TODO: this should be executed from a specific context
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callback(payload);
}
}
});
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Y.extend(DSLocal, Y.Base, {
/**
* Internal init() handler.
*
* @method initializer
* @param config {Object} Config object.
* @private
*/
initializer: function(config) {
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this._initEvents();
},
/**
* This method creates all the events for this module.
* @method _initEvents
* @private
*/
_initEvents: function() {
/**
* Fired when a data request is received.
*
* @event request
* @param e {Event.Facade} Event Facade with the following properties:
* <dl>
* <dt>tId (Number)</dt> <dd>Unique transaction ID.</dd>
* <dt>request (Object)</dt> <dd>The request.</dd>
* <dt>callback (Object)</dt> <dd>The callback object
* (deprecated, refer to <strong>on</strong></dd>
* <dt>on (Object)</dt> <dd>The map of configured callback
* functions.</dd>
* <dt>cfg (Object)</dt> <dd>Configuration object.</dd>
* </dl>
* @preventable _defRequestFn
*/
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this.publish("request", {defaultFn: Y.bind("_defRequestFn", this), queuable:true});
/**
* Fired when raw data is received.
*
* @event data
* @param e {Event.Facade} Event Facade with the following properties:
* <dl>
* <dt>tId (Number)</dt> <dd>Unique transaction ID.</dd>
* <dt>request (Object)</dt> <dd>The request.</dd>
* <dt>callback (Object)</dt> <dd>Deprecated alias for the
* <strong>on</strong> property</dd>
* <dt>on (Object)</dt> <dd>The map of configured transaction
* callbacks. An object with the following properties:
* <dl>
* <dt>success (Function)</dt> <dd>Success handler.</dd>
* <dt>failure (Function)</dt> <dd>Failure handler.</dd>
* </dl>
* </dd>
* <dt>cfg (Object)</dt> <dd>Configuration object.</dd>
* <dt>data (Object)</dt> <dd>Raw data.</dd>
* </dl>
* @preventable _defDataFn
*/
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this.publish("data", {defaultFn: Y.bind("_defDataFn", this), queuable:true});
/**
* Fired when response is returned.
*
* @event response
* @param e {Event.Facade} Event Facade with the following properties:
* <dl>
* <dt>tId (Number)</dt> <dd>Unique transaction ID.</dd>
* <dt>request (Object)</dt> <dd>The request.</dd>
* <dt>callback (Object)</dt> <dd>Deprecated alias for the
* <strong>on</strong> property</dd>
* <dt>on (Object)</dt> <dd>The map of configured transaction
* callbacks. An object with the following properties:
* <dl>
* <dt>success (Function)</dt> <dd>Success handler.</dd>
* <dt>failure (Function)</dt> <dd>Failure handler.</dd>
* </dl>
* </dd>
* <dt>cfg (Object)</dt> <dd>Configuration object.</dd>
* <dt>data (Object)</dt> <dd>Raw data.</dd>
* <dt>response (Object)</dt>
* <dd>Normalized response object with the following properties:
* <dl>
* <dt>results (Object)</dt> <dd>Parsed results.</dd>
* <dt>meta (Object)</dt> <dd>Parsed meta data.</dd>
* <dt>error (Boolean)</dt> <dd>Error flag.</dd>
* </dl>
* </dd>
* <dt>error</dt>
* <dd>Any error that occurred along the transaction lifecycle.</dd>
* </dl>
* @preventable _defResponseFn
*/
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this.publish("response", {defaultFn: Y.bind("_defResponseFn", this), queuable:true});
/**
* Fired when an error is encountered.
*
* @event error
* @param e {Event.Facade} Event Facade with the following properties:
* <dl>
* <dt>tId (Number)</dt> <dd>Unique transaction ID.</dd>
* <dt>request (Object)</dt> <dd>The request.</dd>
* <dt>callback (Object)</dt> <dd>Deprecated alias for the
* <strong>on</strong> property</dd>
* <dt>on (Object)</dt> <dd>The map of configured transaction
* callbacks. An object with the following properties:
* <dl>
* <dt>success (Function)</dt> <dd>Success handler.</dd>
* <dt>failure (Function)</dt> <dd>Failure handler.</dd>
* </dl>
* </dd>
* <dt>cfg (Object)</dt> <dd>Configuration object.</dd>
* <dt>data (Object)</dt> <dd>Raw data.</dd>
* <dt>response (Object)</dt>
* <dd>Normalized response object with the following properties:
* <dl>
* <dt>results (Object)</dt> <dd>Parsed results.</dd>
* <dt>meta (Object)</dt> <dd>Parsed meta data.</dd>
* <dt>error (Object)</dt> <dd>Error object.</dd>
* </dl>
* </dd>
* <dt>error</dt>
* <dd>Any error that occurred along the transaction lifecycle.</dd>
* </dl>
*/
},
/**
* Manages request/response transaction. Must fire <code>response</code>
* event when response is received. This method should be implemented by
* subclasses to achieve more complex behavior such as accessing remote data.
*
* @method _defRequestFn
* @param e {Event.Facade} Event Facadewith the following properties:
* <dl>
* <dt>tId (Number)</dt> <dd>Unique transaction ID.</dd>
* <dt>request (Object)</dt> <dd>The request.</dd>
* <dt>callback (Object)</dt> <dd>Deprecated alias for the
* <strong>on</strong> property</dd>
* <dt>on (Object)</dt> <dd>The map of configured transaction
* callbacks. An object with the following properties:
* <dl>
* <dt>success (Function)</dt> <dd>Success handler.</dd>
* <dt>failure (Function)</dt> <dd>Failure handler.</dd>
* </dl>
* </dd>
* <dt>cfg (Object)</dt> <dd>Configuration object.</dd>
* </dl>
* @protected
*/
_defRequestFn: function(e) {
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var data = this.get("source"),
payload = e.details[0];
// Problematic data
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if(LANG.isUndefined(data)) {
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payload.error = new Error("Local source undefined");
}
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payload.data = data;
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this.fire("data", payload);
},
/**
* Normalizes raw data into a response that includes results and meta properties.
*
* @method _defDataFn
* @param e {Event.Facade} Event Facade with the following properties:
* <dl>
* <dt>tId (Number)</dt> <dd>Unique transaction ID.</dd>
* <dt>request (Object)</dt> <dd>The request.</dd>
* <dt>callback (Object)</dt> <dd>Deprecated alias for the
* <strong>on</strong> property</dd>
* <dt>on (Object)</dt> <dd>The map of configured transaction
* callbacks. An object with the following properties:
* <dl>
* <dt>success (Function)</dt> <dd>Success handler.</dd>
* <dt>failure (Function)</dt> <dd>Failure handler.</dd>
* </dl>
* </dd>
* <dt>cfg (Object)</dt> <dd>Configuration object.</dd>
* <dt>data (Object)</dt> <dd>Raw data.</dd>
* </dl>
* @protected
*/
_defDataFn: function(e) {
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var data = e.data,
meta = e.meta,
response = {
results: (LANG.isArray(data)) ? data : [data],
meta: (meta) ? meta : {}
},
payload = e.details[0];
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payload.response = response;
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this.fire("response", payload);
},
/**
* Sends data as a normalized response to callback.
*
* @method _defResponseFn
* @param e {Event.Facade} Event Facade with the following properties:
* <dl>
* <dt>tId (Number)</dt> <dd>Unique transaction ID.</dd>
* <dt>request (Object)</dt> <dd>The request.</dd>
* <dt>callback (Object)</dt> <dd>Deprecated alias for the
* <strong>on</strong> property</dd>
* <dt>on (Object)</dt> <dd>The map of configured transaction
* callbacks. An object with the following properties:
* <dl>
* <dt>success (Function)</dt> <dd>Success handler.</dd>
* <dt>failure (Function)</dt> <dd>Failure handler.</dd>
* </dl>
* </dd>
* <dt>cfg (Object)</dt> <dd>Configuration object.</dd>
* <dt>data (Object)</dt> <dd>Raw data.</dd>
* <dt>response (Object)</dt> <dd>Normalized response object with the following properties:
* <dl>
* <dt>results (Object)</dt> <dd>Parsed results.</dd>
* <dt>meta (Object)</dt> <dd>Parsed meta data.</dd>
* <dt>error (Boolean)</dt> <dd>Error flag.</dd>
* </dl>
* </dd>
* </dl>
* @protected
*/
_defResponseFn: function(e) {
// Send the response back to the callback
_yuitest_coverfunc("build/datasource-local/datasource-local.js", "_defResponseFn", 342);
_yuitest_coverline("build/datasource-local/datasource-local.js", 344);
DSLocal.issueCallback(e, this);
},
/**
* Generates a unique transaction ID and fires <code>request</code> event.
* <strong>Note</strong>: the property <code>callback</code> is a
* deprecated alias for the <code>on</code> transaction configuration
* property described below.
*
* @method sendRequest
* @param [request] {Object} An object literal with the following properties:
* <dl>
* <dt><code>request</code></dt>
* <dd>The request to send to the live data source, if any.</dd>
* <dt><code>on</code></dt>
* <dd>An object literal with the following properties:
* <dl>
* <dt><code>success</code></dt>
* <dd>The function to call when the data is ready.</dd>
* <dt><code>failure</code></dt>
* <dd>The function to call upon a response failure condition.</dd>
* <dt><code>argument</code></dt>
* <dd>Arbitrary data payload that will be passed back to the success and failure handlers.</dd>
* </dl>
* </dd>
* <dt><code>cfg</code></dt>
* <dd>Configuration object, if any.</dd>
* </dl>
* @return {Number} Transaction ID.
*/
sendRequest: function(request) {
_yuitest_coverfunc("build/datasource-local/datasource-local.js", "sendRequest", 374);
_yuitest_coverline("build/datasource-local/datasource-local.js", 375);
var tId = DSLocal._tId++,
callbacks;
_yuitest_coverline("build/datasource-local/datasource-local.js", 378);
request = request || {};
_yuitest_coverline("build/datasource-local/datasource-local.js", 380);
callbacks = request.on || request.callback;
_yuitest_coverline("build/datasource-local/datasource-local.js", 382);
this.fire("request", {
tId: tId,
request: request.request,
on: callbacks,
callback: callbacks,
cfg: request.cfg || {}
});
_yuitest_coverline("build/datasource-local/datasource-local.js", 391);
return tId;
}
});
_yuitest_coverline("build/datasource-local/datasource-local.js", 395);
Y.namespace("DataSource").Local = DSLocal;
}, '3.7.3', {"requires": ["base"]});