87 lines
2.9 KiB
Kotlin
87 lines
2.9 KiB
Kotlin
/**
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* TheCitadelofRicks
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*
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* Copyright 2019-2020 <seil0@mosad.xyz>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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* MA 02110-1301, USA.
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*
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*/
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package org.mosad.thecitadelofricks.hsoparser
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import org.jsoup.Jsoup
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import org.jsoup.nodes.Element
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import org.mosad.thecitadelofricks.Course
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import org.mosad.thecitadelofricks.Room
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import org.slf4j.LoggerFactory
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import java.net.SocketTimeoutException
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sealed class TimetableLinkListParser<T> {
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private var logger: org.slf4j.Logger = LoggerFactory.getLogger(TimetableLinkListParser::class.java)
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abstract fun constructValue(key: String, link: String): T
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abstract val blacklist: List<String>
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abstract val liClass: String
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/**
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* return a list of all elements at listURL
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* @param listURL the url to the list page
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* @return a ArrayList<T> with all links or null if the request was not successful
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*/
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fun getLinks(listURL: String): HashMap<String, T>? {
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val linkList = HashMap<String, T>()
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try {
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val courseHTML = Jsoup.connect(listURL).get()
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courseHTML
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.select("ul.index-group")
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.select("li.$liClass")
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.select("a[href]")
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.filter{ it: Element -> !blacklist.contains(it.text()) }
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.forEach {
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linkList[it.text()] = constructValue(
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it.text(),
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it.attr("href").replace("http:", "https:")
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)
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}
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logger.info("successfully retrieved link List")
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} catch (ex: SocketTimeoutException) {
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logger.warn("timeout from hs-offenburg.de, updating on next attempt!")
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return null
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} catch (gex: Exception) {
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logger.error("general TimetableLinkListParser error", gex)
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return null
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}
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return linkList
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}
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}
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class CourseListParser : TimetableLinkListParser<Course>() {
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override fun constructValue(key: String, link: String) = Course(key, link)
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override val blacklist = emptyList<String>()
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override val liClass = "Class"
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}
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class RoomListParser : TimetableLinkListParser<Room>() {
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override fun constructValue(key: String, link: String) = Room(key, link)
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override val blacklist = listOf("STÜBER SYSTEMS")
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override val liClass = "Room"
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}
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