mirror of
https://github.com/Grasscutters/Grasscutter.git
synced 2025-05-09 05:25:55 +08:00
347 lines
10 KiB
Java
347 lines
10 KiB
Java
package emu.grasscutter.utils;
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import java.io.*;
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import java.nio.charset.StandardCharsets;
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import java.nio.file.Files;
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import java.nio.file.StandardCopyOption;
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import java.time.*;
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import java.time.temporal.TemporalAdjusters;
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import java.util.*;
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import emu.grasscutter.Grasscutter;
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import io.netty.buffer.ByteBuf;
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import io.netty.buffer.ByteBufUtil;
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import io.netty.buffer.Unpooled;
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import org.slf4j.Logger;
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import javax.annotation.Nullable;
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import static emu.grasscutter.utils.Language.translate;
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@SuppressWarnings({"UnusedReturnValue", "BooleanMethodIsAlwaysInverted"})
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public final class Utils {
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public static final Random random = new Random();
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public static int randomRange(int min, int max) {
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return random.nextInt(max - min + 1) + min;
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}
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public static float randomFloatRange(float min, float max) {
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return random.nextFloat() * (max - min) + min;
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}
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public static double getDist(Position pos1, Position pos2) {
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double xs = pos1.getX() - pos2.getX();
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xs = xs * xs;
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double ys = pos1.getY() - pos2.getY();
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ys = ys * ys;
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double zs = pos1.getZ() - pos2.getZ();
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zs = zs * zs;
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return Math.sqrt(xs + zs + ys);
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}
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public static int getCurrentSeconds() {
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return (int) (System.currentTimeMillis() / 1000.0);
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}
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public static String lowerCaseFirstChar(String s) {
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StringBuilder sb = new StringBuilder(s);
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sb.setCharAt(0, Character.toLowerCase(sb.charAt(0)));
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return sb.toString();
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}
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public static String toString(InputStream inputStream) throws IOException {
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BufferedInputStream bis = new BufferedInputStream(inputStream);
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ByteArrayOutputStream buf = new ByteArrayOutputStream();
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for (int result = bis.read(); result != -1; result = bis.read()) {
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buf.write((byte) result);
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}
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return buf.toString();
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}
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public static void logByteArray(byte[] array) {
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ByteBuf b = Unpooled.wrappedBuffer(array);
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Grasscutter.getLogger().info("\n" + ByteBufUtil.prettyHexDump(b));
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b.release();
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}
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private static final char[] HEX_ARRAY = "0123456789abcdef".toCharArray();
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public static String bytesToHex(byte[] bytes) {
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if (bytes == null) return "";
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char[] hexChars = new char[bytes.length * 2];
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for (int j = 0; j < bytes.length; j++) {
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int v = bytes[j] & 0xFF;
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hexChars[j * 2] = HEX_ARRAY[v >>> 4];
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hexChars[j * 2 + 1] = HEX_ARRAY[v & 0x0F];
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}
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return new String(hexChars);
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}
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public static String bytesToHex(ByteBuf buf) {
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return bytesToHex(byteBufToArray(buf));
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}
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public static byte[] byteBufToArray(ByteBuf buf) {
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byte[] bytes = new byte[buf.capacity()];
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buf.getBytes(0, bytes);
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return bytes;
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}
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public static int abilityHash(String str) {
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int v7 = 0;
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int v8 = 0;
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while (v8 < str.length()) {
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v7 = str.charAt(v8++) + 131 * v7;
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}
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return v7;
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}
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/**
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* Creates a string with the path to a file.
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* @param path The path to the file.
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* @return A path using the operating system's file separator.
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*/
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public static String toFilePath(String path) {
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return path.replace("/", File.separator);
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}
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/**
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* Checks if a file exists on the file system.
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* @param path The path to the file.
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* @return True if the file exists, false otherwise.
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*/
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public static boolean fileExists(String path) {
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return new File(path).exists();
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}
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/**
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* Creates a folder on the file system.
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* @param path The path to the folder.
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* @return True if the folder was created, false otherwise.
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*/
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public static boolean createFolder(String path) {
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return new File(path).mkdirs();
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}
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/**
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* Copies a file from the archive's resources to the file system.
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* @param resource The path to the resource.
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* @param destination The path to copy the resource to.
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* @return True if the file was copied, false otherwise.
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*/
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public static boolean copyFromResources(String resource, String destination) {
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try (InputStream stream = Grasscutter.class.getResourceAsStream(resource)) {
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if(stream == null) {
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Grasscutter.getLogger().warn("Could not find resource: " + resource);
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return false;
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}
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Files.copy(stream, new File(destination).toPath(), StandardCopyOption.REPLACE_EXISTING);
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return true;
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} catch (Exception e) {
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Grasscutter.getLogger().warn("Unable to copy resource " + resource + " to " + destination, e);
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return false;
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}
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}
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/**
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* Get object with null fallback.
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* @param nonNull The object to return if not null.
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* @param fallback The object to return if null.
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* @return One of the two provided objects.
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*/
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public static <T> T requireNonNullElseGet(T nonNull, T fallback) {
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return nonNull != null ? nonNull : fallback;
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}
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/**
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* Logs an object to the console.
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* @param object The object to log.
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*/
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public static void logObject(Object object) {
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String asJson = Grasscutter.getGsonFactory().toJson(object);
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Grasscutter.getLogger().info(asJson);
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}
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/**
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* Checks for required files and folders before startup.
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*/
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public static void startupCheck() {
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ConfigContainer config = Grasscutter.getConfig();
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Logger logger = Grasscutter.getLogger();
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boolean exit = false;
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String resourcesFolder = config.folderStructure.resources;
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String dataFolder = config.folderStructure.data;
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// Check for resources folder.
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if(!fileExists(resourcesFolder)) {
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logger.info(translate("messages.status.create_resources"));
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logger.info(translate("messages.status.resources_error"));
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createFolder(resourcesFolder); exit = true;
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}
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// Check for BinOutput + ExcelBinOutput.
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if(!fileExists(resourcesFolder + "BinOutput") ||
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!fileExists(resourcesFolder + "ExcelBinOutput")) {
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logger.info(translate("messages.status.resources_error"));
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exit = true;
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}
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// Check for game data.
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if(!fileExists(dataFolder))
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createFolder(dataFolder);
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if(exit) System.exit(1);
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}
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/**
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* Gets the timestamp of the next hour.
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* @return The timestamp in UNIX seconds.
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*/
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public static int getNextTimestampOfThisHour(int hour, String timeZone, int param) {
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ZonedDateTime zonedDateTime = ZonedDateTime.now(ZoneId.of(timeZone));
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for (int i = 0; i < param; i ++){
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if (zonedDateTime.getHour() < hour) {
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zonedDateTime = zonedDateTime.withHour(hour).withMinute(0).withSecond(0);
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} else {
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zonedDateTime = zonedDateTime.plusDays(1).withHour(hour).withMinute(0).withSecond(0);
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}
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}
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return (int) zonedDateTime.toInstant().atZone(ZoneOffset.UTC).toEpochSecond();
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}
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/**
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* Gets the timestamp of the next hour in a week.
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* @return The timestamp in UNIX seconds.
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*/
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public static int getNextTimestampOfThisHourInNextWeek(int hour, String timeZone, int param) {
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ZonedDateTime zonedDateTime = ZonedDateTime.now(ZoneId.of(timeZone));
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for (int i = 0; i < param; i++) {
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if (zonedDateTime.getDayOfWeek() == DayOfWeek.MONDAY && zonedDateTime.getHour() < hour) {
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zonedDateTime = ZonedDateTime.now(ZoneId.of(timeZone)).withHour(hour).withMinute(0).withSecond(0);
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} else {
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zonedDateTime = zonedDateTime.with(TemporalAdjusters.next(DayOfWeek.MONDAY)).withHour(hour).withMinute(0).withSecond(0);
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}
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}
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return (int) zonedDateTime.toInstant().atZone(ZoneOffset.UTC).toEpochSecond();
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}
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/**
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* Gets the timestamp of the next hour in a month.
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* @return The timestamp in UNIX seconds.
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*/
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public static int getNextTimestampOfThisHourInNextMonth(int hour, String timeZone, int param) {
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ZonedDateTime zonedDateTime = ZonedDateTime.now(ZoneId.of(timeZone));
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for (int i = 0; i < param; i++) {
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if (zonedDateTime.getDayOfMonth() == 1 && zonedDateTime.getHour() < hour) {
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zonedDateTime = ZonedDateTime.now(ZoneId.of(timeZone)).withHour(hour).withMinute(0).withSecond(0);
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} else {
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zonedDateTime = zonedDateTime.with(TemporalAdjusters.firstDayOfNextMonth()).withHour(hour).withMinute(0).withSecond(0);
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}
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}
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return (int) zonedDateTime.toInstant().atZone(ZoneOffset.UTC).toEpochSecond();
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}
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/**
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* Retrieves a string from an input stream.
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* @param stream The input stream.
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* @return The string.
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*/
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public static String readFromInputStream(@Nullable InputStream stream) {
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if(stream == null) return "empty";
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StringBuilder stringBuilder = new StringBuilder();
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try (BufferedReader reader = new BufferedReader(new InputStreamReader(stream, StandardCharsets.UTF_8))) {
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String line; while ((line = reader.readLine()) != null) {
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stringBuilder.append(line);
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} stream.close();
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} catch (IOException e) {
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Grasscutter.getLogger().warn("Failed to read from input stream.");
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} catch (NullPointerException ignored) {
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return "empty";
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} return stringBuilder.toString();
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}
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/**
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* Switch properties from upper case to lower case?
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*/
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public static Map<String, Object> switchPropertiesUpperLowerCase(Map<String, Object> objMap, Class<?> cls) {
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Map<String, Object> map = new HashMap<>(objMap.size());
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for (String key : objMap.keySet()) {
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try {
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char c = key.charAt(0);
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if (c >= 'a' && c <= 'z') {
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try {
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cls.getDeclaredField(key);
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map.put(key, objMap.get(key));
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} catch (NoSuchFieldException e) {
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String s1 = String.valueOf(c).toUpperCase();
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String after = key.length() > 1 ? s1 + key.substring(1) : s1;
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cls.getDeclaredField(after);
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map.put(after, objMap.get(key));
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}
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} else if (c >= 'A' && c <= 'Z') {
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try {
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cls.getDeclaredField(key);
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map.put(key, objMap.get(key));
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} catch (NoSuchFieldException e) {
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String s1 = String.valueOf(c).toLowerCase();
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String after = key.length() > 1 ? s1 + key.substring(1) : s1;
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cls.getDeclaredField(after);
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map.put(after, objMap.get(key));
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}
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}
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} catch (NoSuchFieldException e) {
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map.put(key, objMap.get(key));
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}
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}
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return map;
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}
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/**
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* Gets the language code from a given locale.
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* @param locale A locale.
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* @return A string in the format of 'XX-XX'.
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*/
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public static String getLanguageCode(Locale locale) {
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return String.format("%s-%s", locale.getLanguage(), locale.getCountry());
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}
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/**
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* Base64 encodes a given byte array.
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* @param toEncode An array of bytes.
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* @return A base64 encoded string.
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*/
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public static String base64Encode(byte[] toEncode) {
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return Base64.getEncoder().encodeToString(toEncode);
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}
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/**
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* Base64 decodes a given string.
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* @param toDecode A base64 encoded string.
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* @return An array of bytes.
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*/
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public static byte[] base64Decode(String toDecode) {
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return Base64.getDecoder().decode(toDecode);
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}
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/**
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* Safely JSON decodes a given string.
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* @param jsonData The JSON-encoded data.
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* @return JSON decoded data, or null if an exception occurred.
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*/
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public static <T> T jsonDecode(String jsonData, Class<T> classType) {
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try {
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return Grasscutter.getGsonFactory().fromJson(jsonData, classType);
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} catch (Exception ignored) {
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return null;
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}
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}
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}
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