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* The copyright in this software is being made available under the BSD License,
* included below. This software may be subject to other third party and contributor
* rights, including patent rights, and no such rights are granted under this license.
*
* Copyright (c) 2023, Dash Industry Forum.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
* * Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation and/or
* other materials provided with the distribution.
* * Neither the name of Dash Industry Forum nor the names of its
* contributors may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
import Events from '../../core/events/Events.js';
import BlacklistController from '../controllers/BlacklistController.js';
import FactoryMaker from '../../core/FactoryMaker.js';
import Settings from '../../core/Settings.js';
import ContentSteeringController from '../../dash/controllers/ContentSteeringController.js';
function LocationSelector() {
const context = this.context;
const settings = Settings(context).getInstance();
let instance,
blacklistController,
contentSteeringController;
function setup() {
blacklistController = BlacklistController(context).create({
updateEventName: Events.SERVICE_LOCATION_LOCATION_BLACKLIST_CHANGED,
addBlacklistEventName: Events.SERVICE_LOCATION_LOCATION_BLACKLIST_ADD
});
contentSteeringController = ContentSteeringController(context).getInstance();
}
function setConfig(config) {
if (config.blacklistController) {
blacklistController = config.blacklistController;
}
if (config.contentSteeringController) {
contentSteeringController = config.contentSteeringController;
}
}
/**
*
* @param {MpdLocation[]} mpdLocations
* @returns {*}
*/
function select(mpdLocations) {
if (!mpdLocations || mpdLocations.length === 0) {
return null;
}
let mpdLocation = null;
if (settings.get().streaming.applyContentSteering) {
mpdLocation = _selectByContentSteering(mpdLocations)
}
if (!mpdLocation) {
mpdLocation = _selectByDefault(mpdLocations);
}
return mpdLocation;
}
function _selectByContentSteering(mpdLocations) {
// Search in the response data of the steering server
const currentSteeringResponseData = contentSteeringController.getCurrentSteeringResponseData();
Iif (currentSteeringResponseData && currentSteeringResponseData.pathwayPriority && currentSteeringResponseData.pathwayPriority.length > 0) {
return _findMpdLocation(currentSteeringResponseData.pathwayPriority, mpdLocations);
}
return null;
}
function _findMpdLocation(pathwayPriority = [], mpdLocations = []) {
let i = 0;
let target = null;
while (i < pathwayPriority.length) {
const curr = pathwayPriority[i];
const idx = mpdLocations.findIndex((elem) => {
return elem.serviceLocation && elem.serviceLocation === curr;
})
if (idx !== -1 && !blacklistController.contains(mpdLocations[idx].serviceLocation)) {
target = mpdLocations[idx]
break;
}
i += 1;
}
return target;
}
function _selectByDefault(mpdLocations) {
return mpdLocations[0];
}
function reset() {
blacklistController.reset();
}
instance = {
select,
setConfig,
reset
};
setup();
return instance;
}
LocationSelector.__dashjs_factory_name = 'LocationSelector';
export default FactoryMaker.getClassFactory(LocationSelector);
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