replace GlobalScope with CoroutineScope in CacheController

build.gradle

@@ -1,12 +1,12 @@
 plugins {
-    id 'org.jetbrains.kotlin.jvm' version '1.6.20'
+    id 'org.jetbrains.kotlin.jvm' version '1.5.31'
-    id 'org.jetbrains.kotlin.plugin.spring' version '1.6.20'
+    id 'org.jetbrains.kotlin.plugin.spring' version '1.5.31'
-    id 'org.springframework.boot' version '2.6.6'
+    id 'org.springframework.boot' version '2.5.5'
     id 'io.spring.dependency-management' version '1.0.11.RELEASE'
 }
 
 group 'org.mosad'
-version '1.3.1'
+version '1.3.0'
 
 repositories {
     mavenCentral()
@@ -15,11 +15,11 @@ repositories {
 dependencies {
     implementation 'org.springframework.boot:spring-boot-starter-web'
     implementation 'org.jetbrains.kotlin:kotlin-stdlib'
-    implementation 'org.jetbrains.kotlinx:kotlinx-coroutines-core:1.6.1'
+    implementation 'org.jetbrains.kotlinx:kotlinx-coroutines-core:1.5.2'
     implementation 'org.jsoup:jsoup:1.14.3'
-    implementation 'com.google.code.gson:gson:2.9.0'
+    implementation 'com.google.code.gson:gson:2.8.8'
 
-    testImplementation 'org.junit.jupiter:junit-jupiter:5.8.2'
+    testImplementation 'org.junit.jupiter:junit-jupiter:5.8.1'
 }
 
 test {

gradle/wrapper/gradle-wrapper.properties

@@ -1,5 +1,5 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-7.4.2-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-7.2-bin.zip
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists

gradlew

@@ -1,7 +1,7 @@
-#!/bin/sh
+#!/usr/bin/env sh
 
 #
-# Copyright © 2015-2021 the original authors.
+# Copyright 2015 the original author or authors.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -17,101 +17,67 @@
 #
 
 ##############################################################################
-#
+##
-#   Gradle start up script for POSIX generated by Gradle.
+##  Gradle start up script for UN*X
-#
+##
-#   Important for running:
-#
-#   (1) You need a POSIX-compliant shell to run this script. If your /bin/sh is
-#       noncompliant, but you have some other compliant shell such as ksh or
-#       bash, then to run this script, type that shell name before the whole
-#       command line, like:
-#
-#           ksh Gradle
-#
-#       Busybox and similar reduced shells will NOT work, because this script
-#       requires all of these POSIX shell features:
-#         * functions;
-#         * expansions «$var», «${var}», «${var:-default}», «${var+SET}»,
-#           «${var#prefix}», «${var%suffix}», and «$( cmd )»;
-#         * compound commands having a testable exit status, especially «case»;
-#         * various built-in commands including «command», «set», and «ulimit».
-#
-#   Important for patching:
-#
-#   (2) This script targets any POSIX shell, so it avoids extensions provided
-#       by Bash, Ksh, etc; in particular arrays are avoided.
-#
-#       The "traditional" practice of packing multiple parameters into a
-#       space-separated string is a well documented source of bugs and security
-#       problems, so this is (mostly) avoided, by progressively accumulating
-#       options in "$@", and eventually passing that to Java.
-#
-#       Where the inherited environment variables (DEFAULT_JVM_OPTS, JAVA_OPTS,
-#       and GRADLE_OPTS) rely on word-splitting, this is performed explicitly;
-#       see the in-line comments for details.
-#
-#       There are tweaks for specific operating systems such as AIX, CygWin,
-#       Darwin, MinGW, and NonStop.
-#
-#   (3) This script is generated from the Groovy template
-#       https://github.com/gradle/gradle/blob/master/subprojects/plugins/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt
-#       within the Gradle project.
-#
-#       You can find Gradle at https://github.com/gradle/gradle/.
-#
 ##############################################################################
 
 # Attempt to set APP_HOME
-
 # Resolve links: $0 may be a link
-app_path=$0
+PRG="$0"
-
+# Need this for relative symlinks.
-# Need this for daisy-chained symlinks.
+while [ -h "$PRG" ] ; do
-while
+    ls=`ls -ld "$PRG"`
-    APP_HOME=${app_path%"${app_path##*/}"}  # leaves a trailing /; empty if no leading path
+    link=`expr "$ls" : '.*-> \(.*\)$'`
-    [ -h "$app_path" ]
+    if expr "$link" : '/.*' > /dev/null; then
-do
+        PRG="$link"
-    ls=$( ls -ld "$app_path" )
+    else
-    link=${ls#*' -> '}
+        PRG=`dirname "$PRG"`"/$link"
-    case $link in             #(
+    fi
-      /*)   app_path=$link ;; #(
-      *)    app_path=$APP_HOME$link ;;
-    esac
 done
-
+SAVED="`pwd`"
-APP_HOME=$( cd "${APP_HOME:-./}" && pwd -P ) || exit
+cd "`dirname \"$PRG\"`/" >/dev/null
+APP_HOME="`pwd -P`"
+cd "$SAVED" >/dev/null
 
 APP_NAME="Gradle"
-APP_BASE_NAME=${0##*/}
+APP_BASE_NAME=`basename "$0"`
 
 # Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
 DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
 
 # Use the maximum available, or set MAX_FD != -1 to use that value.
-MAX_FD=maximum
+MAX_FD="maximum"
 
 warn () {
     echo "$*"
-} >&2
+}
 
 die () {
     echo
     echo "$*"
     echo
     exit 1
-} >&2
+}
 
 # OS specific support (must be 'true' or 'false').
 cygwin=false
 msys=false
 darwin=false
 nonstop=false
-case "$( uname )" in                #(
+case "`uname`" in
-  CYGWIN* )         cygwin=true  ;; #(
+  CYGWIN* )
-  Darwin* )         darwin=true  ;; #(
+    cygwin=true
-  MSYS* | MINGW* )  msys=true    ;; #(
+    ;;
-  NONSTOP* )        nonstop=true ;;
+  Darwin* )
+    darwin=true
+    ;;
+  MINGW* )
+    msys=true
+    ;;
+  NONSTOP* )
+    nonstop=true
+    ;;
 esac
 
 CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
@@ -121,9 +87,9 @@ CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
 if [ -n "$JAVA_HOME" ] ; then
     if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
         # IBM's JDK on AIX uses strange locations for the executables
-        JAVACMD=$JAVA_HOME/jre/sh/java
+        JAVACMD="$JAVA_HOME/jre/sh/java"
     else
-        JAVACMD=$JAVA_HOME/bin/java
+        JAVACMD="$JAVA_HOME/bin/java"
     fi
     if [ ! -x "$JAVACMD" ] ; then
         die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
@@ -132,7 +98,7 @@ Please set the JAVA_HOME variable in your environment to match the
 location of your Java installation."
     fi
 else
-    JAVACMD=java
+    JAVACMD="java"
     which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
 
 Please set the JAVA_HOME variable in your environment to match the
@@ -140,95 +106,80 @@ location of your Java installation."
 fi
 
 # Increase the maximum file descriptors if we can.
-if ! "$cygwin" && ! "$darwin" && ! "$nonstop" ; then
+if [ "$cygwin" = "false" -a "$darwin" = "false" -a "$nonstop" = "false" ] ; then
-    case $MAX_FD in #(
+    MAX_FD_LIMIT=`ulimit -H -n`
-      max*)
+    if [ $? -eq 0 ] ; then
-        MAX_FD=$( ulimit -H -n ) ||
+        if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
-            warn "Could not query maximum file descriptor limit"
+            MAX_FD="$MAX_FD_LIMIT"
-    esac
+        fi
-    case $MAX_FD in  #(
+        ulimit -n $MAX_FD
-      '' | soft) :;; #(
+        if [ $? -ne 0 ] ; then
-      *)
+            warn "Could not set maximum file descriptor limit: $MAX_FD"
-        ulimit -n "$MAX_FD" ||
+        fi
-            warn "Could not set maximum file descriptor limit to $MAX_FD"
+    else
-    esac
+        warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT"
+    fi
 fi
 
-# Collect all arguments for the java command, stacking in reverse order:
+# For Darwin, add options to specify how the application appears in the dock
-#   * args from the command line
+if $darwin; then
-#   * the main class name
+    GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
-#   * -classpath
+fi
-#   * -D...appname settings
-#   * --module-path (only if needed)
-#   * DEFAULT_JVM_OPTS, JAVA_OPTS, and GRADLE_OPTS environment variables.
 
 # For Cygwin or MSYS, switch paths to Windows format before running java
-if "$cygwin" || "$msys" ; then
+if [ "$cygwin" = "true" -o "$msys" = "true" ] ; then
-    APP_HOME=$( cygpath --path --mixed "$APP_HOME" )
+    APP_HOME=`cygpath --path --mixed "$APP_HOME"`
-    CLASSPATH=$( cygpath --path --mixed "$CLASSPATH" )
+    CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
+    
+    JAVACMD=`cygpath --unix "$JAVACMD"`
 
-    JAVACMD=$( cygpath --unix "$JAVACMD" )
+    # We build the pattern for arguments to be converted via cygpath
-
+    ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`
-    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    SEP=""
-    for arg do
+    for dir in $ROOTDIRSRAW ; do
-        if
+        ROOTDIRS="$ROOTDIRS$SEP$dir"
-            case $arg in                                #(
+        SEP="|"
-              -*)   false ;;                            # don't mess with options #(
-              /?*)  t=${arg#/} t=/${t%%/*}              # looks like a POSIX filepath
-                    [ -e "$t" ] ;;                      #(
-              *)    false ;;
-            esac
-        then
-            arg=$( cygpath --path --ignore --mixed "$arg" )
-        fi
-        # Roll the args list around exactly as many times as the number of
-        # args, so each arg winds up back in the position where it started, but
-        # possibly modified.
-        #
-        # NB: a `for` loop captures its iteration list before it begins, so
-        # changing the positional parameters here affects neither the number of
-        # iterations, nor the values presented in `arg`.
-        shift                   # remove old arg
-        set -- "$@" "$arg"      # push replacement arg
     done
+    OURCYGPATTERN="(^($ROOTDIRS))"
+    # Add a user-defined pattern to the cygpath arguments
+    if [ "$GRADLE_CYGPATTERN" != "" ] ; then
+        OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
+    fi
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    i=0
+    for arg in "$@" ; do
+        CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -`
+        CHECK2=`echo "$arg"|egrep -c "^-"`                                 ### Determine if an option
+
+        if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then                    ### Added a condition
+            eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"`
+        else
+            eval `echo args$i`="\"$arg\""
+        fi
+        i=`expr $i + 1`
+    done
+    case $i in
+        0) set -- ;;
+        1) set -- "$args0" ;;
+        2) set -- "$args0" "$args1" ;;
+        3) set -- "$args0" "$args1" "$args2" ;;
+        4) set -- "$args0" "$args1" "$args2" "$args3" ;;
+        5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
+        6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
+        7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
+        8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
+        9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
+    esac
 fi
 
-# Collect all arguments for the java command;
+# Escape application args
-#   * $DEFAULT_JVM_OPTS, $JAVA_OPTS, and $GRADLE_OPTS can contain fragments of
+save () {
-#     shell script including quotes and variable substitutions, so put them in
+    for i do printf %s\\n "$i" | sed "s/'/'\\\\''/g;1s/^/'/;\$s/\$/' \\\\/" ; done
-#     double quotes to make sure that they get re-expanded; and
+    echo " "
-#   * put everything else in single quotes, so that it's not re-expanded.
+}
+APP_ARGS=`save "$@"`
 
-set -- \
+# Collect all arguments for the java command, following the shell quoting and substitution rules
-        "-Dorg.gradle.appname=$APP_BASE_NAME" \
+eval set -- $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS "\"-Dorg.gradle.appname=$APP_BASE_NAME\"" -classpath "\"$CLASSPATH\"" org.gradle.wrapper.GradleWrapperMain "$APP_ARGS"
-        -classpath "$CLASSPATH" \
-        org.gradle.wrapper.GradleWrapperMain \
-        "$@"
-
-# Use "xargs" to parse quoted args.
-#
-# With -n1 it outputs one arg per line, with the quotes and backslashes removed.
-#
-# In Bash we could simply go:
-#
-#   readarray ARGS < <( xargs -n1 <<<"$var" ) &&
-#   set -- "${ARGS[@]}" "$@"
-#
-# but POSIX shell has neither arrays nor command substitution, so instead we
-# post-process each arg (as a line of input to sed) to backslash-escape any
-# character that might be a shell metacharacter, then use eval to reverse
-# that process (while maintaining the separation between arguments), and wrap
-# the whole thing up as a single "set" statement.
-#
-# This will of course break if any of these variables contains a newline or
-# an unmatched quote.
-#
-
-eval "set -- $(
-        printf '%s\n' "$DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS" |
-        xargs -n1 |
-        sed ' s~[^-[:alnum:]+,./:=@_]~\\&~g; ' |
-        tr '\n' ' '
-    )" '"$@"'
 
 exec "$JAVACMD" "$@"

gradlew.bat

@@ -40,7 +40,7 @@ if defined JAVA_HOME goto findJavaFromJavaHome
 
 set JAVA_EXE=java.exe
 %JAVA_EXE% -version >NUL 2>&1
-if "%ERRORLEVEL%" == "0" goto execute
+if "%ERRORLEVEL%" == "0" goto init
 
 echo.
 echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
@@ -54,7 +54,7 @@ goto fail
 set JAVA_HOME=%JAVA_HOME:"=%
 set JAVA_EXE=%JAVA_HOME%/bin/java.exe
 
-if exist "%JAVA_EXE%" goto execute
+if exist "%JAVA_EXE%" goto init
 
 echo.
 echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
@@ -64,6 +64,21 @@ echo location of your Java installation.
 
 goto fail
 
+:init
+@rem Get command-line arguments, handling Windows variants
+
+if not "%OS%" == "Windows_NT" goto win9xME_args
+
+:win9xME_args
+@rem Slurp the command line arguments.
+set CMD_LINE_ARGS=
+set _SKIP=2
+
+:win9xME_args_slurp
+if "x%~1" == "x" goto execute
+
+set CMD_LINE_ARGS=%*
+
 :execute
 @rem Setup the command line
 
@@ -71,7 +86,7 @@ set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
 
 
 @rem Execute Gradle
-"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %*
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS%
 
 :end
 @rem End local scope for the variables with windows NT shell

src/main/kotlin/org/mosad/thecitadelofricks/APIController.kt

@@ -49,7 +49,7 @@ class APIController {
 
     companion object {
         const val apiVersion = "1.3.0"
-        const val softwareVersion = "1.3.1"
+        const val softwareVersion = "1.3.0"
         val startTime = System.currentTimeMillis() / 1000
     }
 

src/main/kotlin/org/mosad/thecitadelofricks/controller/CacheController.kt

@@ -38,8 +38,7 @@ import java.util.concurrent.Executors
 import kotlin.collections.ArrayList
 import kotlin.collections.HashSet
 import kotlin.concurrent.scheduleAtFixedRate
-import kotlin.time.Duration.Companion.hours
+import kotlin.time.Duration
-import kotlin.time.Duration.Companion.minutes
 import kotlin.time.ExperimentalTime
 
 class CacheController {
@@ -73,7 +72,7 @@ class CacheController {
                 val instr = CacheController::class.java.getResourceAsStream("/html/Timetable_normal-week.html")
 
                 val timetableParser =
-                    TimetableParser(htmlDoc = Jsoup.parse(instr!!, "UTF-8", "https://www.hs-offenburg.de/"))
+                    TimetableParser(htmlDoc = Jsoup.parse(instr, "UTF-8", "https://www.hs-offenburg.de/"))
                 val timetableTest = timetableParser.parseTimeTable()
 
                 return TimetableCourseWeek(
@@ -89,7 +88,7 @@ class CacheController {
             }
 
             val key = "$courseName-$weekIndex"
-            return if (timetableList.containsKey(key)) {
+            return if (timetableList.contains(key)) {
                 timetableList[key]!!
             } else {
                 val timetableLink = courseList.courses[courseName]
@@ -157,7 +156,7 @@ class CacheController {
          * this function updates the courseList
          * during the update process the old data will be returned for an API request
          */
-        private fun asyncUpdateCourseList() = GlobalScope.launch {
+        private fun asyncUpdateCourseList() = CoroutineScope(Dispatchers.IO).launch {
             CourseListParser().getCourseLinks(StartupController.courseListURL)?.let {
                 courseList = CoursesList(CoursesMeta(System.currentTimeMillis() / 1000, it.size), it.toSortedMap())
             }
@@ -173,7 +172,7 @@ class CacheController {
          * this function updates the mensa menu list
          * during the update process the old data will be returned for an API request
          */
-        private fun asyncUpdateMensa() = GlobalScope.launch {
+        private fun asyncUpdateMensa() = CoroutineScope(Dispatchers.IO).launch {
             val mensaCurrentWeek = MensaParser().getMensaMenu(StartupController.mensaMenuURL)
             val mensaNextWeek = MensaParser().getMensaMenu(MensaParser().getMenuLinkNextWeek(StartupController.mensaMenuURL))
 
@@ -190,7 +189,7 @@ class CacheController {
          * during the update process the old data will be returned for an API request
          * a FixedThreadPool is used to make parallel requests for faster updates
          */
-        private fun asyncUpdateTimetables() = GlobalScope.launch {
+        private fun asyncUpdateTimetables() = CoroutineScope(Dispatchers.IO).launch {
             logger.info("Updating ${timetableList.size} timetables ...")
 
             // create a new ThreadPool with 5 threads
@@ -257,10 +256,10 @@ class CacheController {
         private fun scheduledUpdates() {
             val currentTime = System.currentTimeMillis()
 
-            val duration24h = 24.hours.inWholeMilliseconds
+            val duration24h = Duration.hours(24).inWholeMilliseconds
-            val duration3h = 3.hours.inWholeMilliseconds
+            val duration3h = Duration.hours(3).inWholeMilliseconds
-            val duration1h = 1.hours.inWholeMilliseconds
+            val duration1h = Duration.hours(1).inWholeMilliseconds
-            val duration1m = 1.minutes.inWholeMilliseconds
+            val duration1m = Duration.minutes(1).inWholeMilliseconds
 
             // Calculate the initial delay to make the update time independent of the start time
             fun calcInitDelay(period: Long) = (period - ((currentTime + duration1h) % period)) + duration1m

src/main/kotlin/org/mosad/thecitadelofricks/hsoparser/MensaParser.kt

@@ -63,7 +63,7 @@ class MensaParser {
                 .forEachIndexed { dayIndex, day ->
                     val strDay = day.select("h3").text()
 
-                    day.select("div.row").forEachIndexed { _, meal ->
+                    day.select("div.row").forEachIndexed { mealIndex, meal ->
                         val heading = meal.select("h4.menu-header").text()
                         val parts = ArrayList(meal.select("div.menu-info").html().substringBefore("<br><span").replace("\n", "").split("<br>"))
                         val additives = meal.select("span.show-with-allergenes").text()