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/* Authors:
* Petr Vobornik <pvoborni@redhat.com>
*
* Copyright (C) 2013 Red Hat
* see file 'COPYING' for use and warranty information
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
define(['dojo/_base/declare',
'dojo/_base/array',
'dojo/_base/lang'
], function(declare, array, lang, construct) {
var undefined;
/**
* Utility for working with specification objects
* @class spec_util
* @singleton
*/
var exp = {
/**
* Set default value of spec's attribute when not already
*
* @param {Object} spec
* @param {string} attribute name
* @param {*} default value
* @param {Object} object
*/
def: function(spec, attr_name, def) {
if (spec[attr_name] === undefined) {
spec[attr_name] = def;
}
},
/**
* Set spec[spec_attr_name] to obj[attr_name].
*
* Use def value if spec doesn't contain the value.
*
* Do nothing if no value is defined.
*/
set: function(obj, spec, attr_name, def, spec_attr_name) {
spec_attr_name = spec_attr_name || attr_name;
if (spec[spec_attr_name] !== undefined) {
obj[attr_name] = spec[spec_attr_name];
} else if (def !== undefined) {
obj[attr_name] = def;
}
},
/**
* Set entity name as entity to spec if context contains entity
*/
context_entity: function(spec, context) {
if (context.entity && !spec.entity) {
if (typeof context.entity === 'string') {
spec.entity = context.entity;
} else {
spec.entity = context.entity.name;
}
}
}
};
return exp;
});
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