97892869ae
Move check for composition up higher in the sequence of if-blocks in the validation step of linking; remove fallback to [] for undefined composition, which is no longer necessary as a consequence of this. nasa/openmctweb#98
80 lines
3.1 KiB
JavaScript
80 lines
3.1 KiB
JavaScript
/*****************************************************************************
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* Open MCT Web, Copyright (c) 2014-2015, United States Government
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* as represented by the Administrator of the National Aeronautics and Space
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* Administration. All rights reserved.
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*
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* Open MCT Web is licensed under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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* http://www.apache.org/licenses/LICENSE-2.0.
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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* Open MCT Web includes source code licensed under additional open source
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* licenses. See the Open Source Licenses file (LICENSES.md) included with
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* this source code distribution or the Licensing information page available
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* at runtime from the About dialog for additional information.
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*****************************************************************************/
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/*global define */
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define(
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function () {
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"use strict";
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/**
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* LinkService provides an interface for linking objects to additional
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* locations. It also provides a method for determining if an object
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* can be copied to a specific location.
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* @constructor
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* @memberof platform/entanglement
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* @implements {platform/entanglement.AbstractComposeService}
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*/
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function LinkService(policyService) {
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this.policyService = policyService;
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}
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LinkService.prototype.validate = function (object, parentCandidate) {
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if (!parentCandidate || !parentCandidate.getId) {
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return false;
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}
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if (parentCandidate.getId() === object.getId()) {
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return false;
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}
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if (!parentCandidate.hasCapability('composition')) {
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return false;
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}
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if (parentCandidate.getModel().composition.indexOf(object.getId()) !== -1) {
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return false;
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}
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return this.policyService.allow(
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"composition",
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parentCandidate.getCapability('type'),
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object.getCapability('type')
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);
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};
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LinkService.prototype.perform = function (object, parentObject) {
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if (!this.validate(object, parentObject)) {
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throw new Error(
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"Tried to link objects without validating first."
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);
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}
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return parentObject.getCapability('composition').add(object)
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.then(function (objectInNewContext) {
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return parentObject.getCapability('persistence')
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.persist()
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.then(function () { return objectInNewContext; });
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});
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};
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return LinkService;
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}
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);
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