wisemapping-frontend/packages/mindplot/lib/components/persistence/XMLSerializerFactory.js

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/*
* Copyright [2015] [wisemapping]
*
* Licensed under WiseMapping Public License, Version 1.0 (the "License").
* It is basically the Apache License, Version 2.0 (the "License") plus the
* "powered by wisemapping" text requirement on every single page;
* you may not use this file except in compliance with the License.
* You may obtain a copy of the license at
*
* http://www.wisemapping.org/license
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
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const ModelCodeName = require('./ModelCodeName').default;
const Beta2PelaMigrator = require('./Beta2PelaMigrator').default;
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const Pela2TangoMigrator = require('./Pela2TangoMigrator').default;
const XMLSerializer_Beta = require('./XMLSerializer_Beta').default;
const XMLSerializer_Pela = require('./XMLSerializer_Pela').default;
const XMLSerializer_Tango = require('./XMLSerializer_Tango').default;
/**
* @class mindplot.persistence.XMLSerializerFactory
*/
const XMLSerializerFactory = {};
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/**
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* @param {mindplot.model.IMindmap} mindmap
* @return {mindplot.persistence.XMLSerializer_Beta|mindplot.persistence.XMLSerializer_Pela|
* mindplot.persistence.XMLSerializer_Tango} serializer corresponding to the mindmap's version
*/
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XMLSerializerFactory.getSerializerFromMindmap = function (mindmap) {
return XMLSerializerFactory.getSerializer(mindmap.getVersion());
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};
/**
* @param domDocument
* @return serializer corresponding to the mindmap's version
*/
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XMLSerializerFactory.getSerializerFromDocument = function (domDocument) {
const rootElem = domDocument.documentElement;
return XMLSerializerFactory.getSerializer(rootElem.getAttribute('version'));
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};
/**
* retrieves the serializer for the mindmap's version and migrates to the current version,
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* e.g. for a Beta mindmap and current version Tango:
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* serializer = new Pela2TangoMigrator(new Beta2PelaMigrator(new XMLSerializer_Beta()))
* @param {String} version the version name
* @return serializer
*/
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XMLSerializerFactory.getSerializer = function (version) {
if (!$defined(version)) {
version = ModelCodeName.BETA;
}
const codeNames = XMLSerializerFactory._codeNames;
let found = false;
let serializer = null;
for (let i = 0; i < codeNames.length; i++) {
if (!found) {
found = codeNames[i].codeName == version;
if (found) serializer = new (codeNames[i].serializer)();
} else {
const { migrator } = codeNames[i];
serializer = new migrator(serializer);
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}
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}
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return serializer;
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};
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XMLSerializerFactory._codeNames = [
{
codeName: ModelCodeName.BETA,
serializer: XMLSerializer_Beta,
migrator() {
},
},
{
codeName: ModelCodeName.PELA,
serializer: XMLSerializer_Pela,
migrator: Beta2PelaMigrator,
},
{
codeName: ModelCodeName.TANGO,
serializer: XMLSerializer_Tango,
migrator: Pela2TangoMigrator,
},
];
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export default XMLSerializerFactory;