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package net.minecraft;
import java.io.IOException;
import java.net.URL;
import java.time.Instant;
import java.util.ArrayList;
import java.util.Comparator;
import java.util.List;
import java.util.Scanner;
public class VersionManager {
public final List<GameVersion> versions = new ArrayList<>();
public VersionManager() {
try {
downloadVersionList();
} catch (IOException e) {
throw new RuntimeException(e);
}
}
public GameVersion getVersionForInstant(Instant instant) {
return versions.stream()
.filter(v -> !v.isPreleaseOrDemo())
.filter(v -> v.releasedOn.isBefore(instant))
.max(Comparator.comparing((GameVersion a) -> a.releasedOn))
.orElse(null);
}
private void downloadVersionList() throws IOException {
URL versionListURL = new URL("http://files.betacraft.uk/launcher/assets/version_list.txt");
Scanner scanner = new Scanner(versionListURL.openStream(), "UTF-8");
while (scanner.hasNextLine()) {
String[] versionInfo = scanner.nextLine().split("`");
long compileTimestamp = Long.parseLong(versionInfo[2]);
long releaseTimestamp = Long.parseLong(versionInfo[3]);
GameVersion version = new GameVersion(versionInfo[0], versionInfo[1], compileTimestamp, releaseTimestamp);
versions.add(version);
}
}
}
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