102 lines
3.9 KiB
JavaScript
102 lines
3.9 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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* CopyService provides an interface for deep copying objects from one
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* location to another. It also provides a method for determining if
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* an object 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 CopyService($q, creationService, policyService) {
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this.$q = $q;
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this.creationService = creationService;
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this.policyService = policyService;
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}
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CopyService.prototype.validate = function (object, parentCandidate) {
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if (!parentCandidate || !parentCandidate.getId) {
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return false;
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}
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if (parentCandidate.getId() === object.getId()) {
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return false;
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}
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return this.policyService.allow(
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"composition",
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parentCandidate.getCapability('type'),
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object.getCapability('type')
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);
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};
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CopyService.prototype.perform = function (domainObject, parent) {
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var model = JSON.parse(JSON.stringify(domainObject.getModel())),
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$q = this.$q,
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self = this;
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// Wrapper for the recursive step
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function duplicateObject(domainObject, parent) {
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return self.perform(domainObject, parent);
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}
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if (!this.validate(domainObject, parent)) {
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throw new Error(
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"Tried to copy objects without validating first."
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);
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}
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if (domainObject.hasCapability('composition')) {
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model.composition = [];
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}
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return this.creationService
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.createObject(model, parent)
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.then(function (newObject) {
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if (!domainObject.hasCapability('composition')) {
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return;
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}
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return domainObject
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.useCapability('composition')
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.then(function (composees) {
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// Duplicate composition serially to prevent
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// write conflicts.
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return composees.reduce(function (promise, composee) {
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return promise.then(function () {
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return duplicateObject(composee, newObject);
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});
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}, $q.when(undefined));
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});
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});
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};
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return CopyService;
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}
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);
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