TheCitadelofRicks/src/main/kotlin/org/mosad/thecitadelofricks/hsoparser/CourseListParser.kt

62 lines
2.1 KiB
Kotlin

/**
* TheCitadelofRicks
*
* Copyright 2019 <seil0@mosad.xyz>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
* MA 02110-1301, USA.
*
*/
package org.mosad.thecitadelofricks.hsoparser
import org.jsoup.Jsoup
import org.mosad.thecitadelofricks.Course
import org.slf4j.LoggerFactory
import java.net.SocketTimeoutException
class CourseListParser {
var logger: org.slf4j.Logger = LoggerFactory.getLogger(MensaParser::class.java)
/**
* return a list of all courses at courseListURL
* @param courseListURL the url to the course list page
* @return a ArrayList<Course> with all courses or null if the request was not successful
*/
fun getCourseLinks(courseListURL: String): ArrayList<Course>? {
val courseLinkList = ArrayList<Course>()
try {
val courseHTML = Jsoup.connect(courseListURL).get()
courseHTML.select("ul.index-group").select("li.Class").select("a[href]").forEachIndexed { _, element ->
courseLinkList.add(
Course(
element.text(),
element.attr("href").replace("http", "https")
)
)
}
} catch (ex: SocketTimeoutException) {
logger.warn("timeout from hs-offenburg.de, updating on next attempt!")
return null
} catch (gex: Exception) {
logger.error("general CourseListParser error", gex)
return null
}
return courseLinkList
}
}