初始化 monorepo: Go后端(7微服务) + Unity客户端(9模块) + 启动器 HTML5原型: Three.js 3D体素世界, Perlin噪声地形, 原版材质, 22种方块 Minecraft创造模式背包: 双栏布局, 拖拽移动物品, 方向性元件引脚 AI助搭策划文档 + 客户端/服务端骨架 + Docker Compose + CI
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using PCL.Core.Logging;
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using PCL.Core.Minecraft.Java;
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using PCL.Core.Minecraft.Java.Parser;
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using PCL.Core.Minecraft.Java.Scanner;
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using PCL.Core.App;
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using PCL.Core.Utils.Exts;
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using System;
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using System.Collections.Concurrent;
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using System.Collections.Generic;
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using System.IO;
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using System.Linq;
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using System.Threading;
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using System.Threading.Tasks;
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using System.Text.Json;
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using PCL.Core.Utils;
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namespace PCL.Core.Minecraft;
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public class JavaManager
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{
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private const string ModuleName = "JavaManager";
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private readonly Dictionary<string, JavaEntry> _javaEntrys = new();
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private readonly IJavaParser _parser;
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private readonly IJavaScanner[] _scanners;
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private readonly SemaphoreSlim _scanLock = new(1, 1);
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private DateTime _lastScanTime = DateTime.MinValue;
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private static readonly TimeSpan _MinScanInterval = TimeSpan.FromSeconds(13);
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public JavaManager(
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IJavaParser parser,
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params IJavaScanner[] scanners)
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{
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_parser = parser;
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_scanners = scanners;
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}
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public void SaveConfig()
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{
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try
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{
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var items = _javaEntrys
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.Select(x => new JavaStorageItem()
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{
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Path = x.Value.Installation.JavaExePath,
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IsEnable = x.Value.IsEnabled,
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Source = x.Value.Source
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})
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.ToArray();
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States.Game.JavaList = JsonSerializer.Serialize(items, JsonCompat.SerializerOptions);
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}
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catch(Exception ex)
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{
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LogWrapper.Error(ex, ModuleName, "保存 Java 配置项失败");
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}
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}
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public void ReadConfig()
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{
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try
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{
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var items = JsonSerializer.Deserialize<JavaStorageItem[]>(States.Game.JavaList, JsonCompat.SerializerOptions);
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if (items is null) return;
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var itemsAdded = new List<JavaEntry>();
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foreach (var item in items)
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{
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var parserResult = _parser.Parse(item.Path);
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if (parserResult is null)
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{
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LogWrapper.Trace(ModuleName, $"Can not find Java {item.Path}, skip");
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continue;
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}
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itemsAdded.Add(new JavaEntry() {
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Installation = parserResult,
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IsEnabled = item.IsEnable,
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Source = item.Source ?? JavaSource.AutoScanned
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});
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}
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lock (_javaEntrys)
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{
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foreach(var item in itemsAdded)
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{
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if (_javaEntrys.TryGetValue(item.Installation.JavaExePath, out var existingRecord))
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{
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existingRecord.IsEnabled = item.IsEnabled;
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existingRecord.Source = item.Source;
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}
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else
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{
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_javaEntrys.Add(item.Installation.JavaExePath, item);
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}
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}
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}
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}
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catch(Exception ex)
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{
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LogWrapper.Error(ex, ModuleName, "无法读取 Java 配置项");
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}
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}
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/// <summary>
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/// 扫描 Java 安装
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/// </summary>
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public async Task ScanJavaAsync(bool force = false)
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{
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if (ShouldSkip()) return;
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if (!await _scanLock.WaitAsync(TimeSpan.FromSeconds(7))) return;
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try
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{
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if (ShouldSkip()) return;
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await Task.Run(_ScanInternal);
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_lastScanTime = DateTime.Now;
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SaveConfig();
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}
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finally
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{
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_scanLock.Release();
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}
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bool ShouldSkip()
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{
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return !force && (DateTime.Now - _lastScanTime) < _MinScanInterval;
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}
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}
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private void _ScanInternal()
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{
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var pathSet = new ConcurrentDictionary<string, bool>(StringComparer.OrdinalIgnoreCase);
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Parallel.ForEach(_scanners, scanner =>
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{
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var temp = new List<string>();
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scanner.Scan(temp);
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foreach (var path in temp)
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{
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var normalized = _NormalizePath(path);
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if (!_ShouldExcludePath(normalized))
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pathSet.TryAdd(normalized, true);
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}
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});
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var scannedEntries = pathSet.Keys
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.Select(_parser.Parse)
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.Where(inst => inst is not null)
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.Select(inst => new JavaEntry
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{
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Installation = inst!,
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IsEnabled = _javaEntrys.TryGetValue(_NormalizePath(inst!.JavaExePath), out var existingJava)
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? existingJava.IsEnabled
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: _ShouldEnableByDefault(inst!),
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Source = JavaSource.AutoScanned
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})
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.ToList();
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lock (_javaEntrys)
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{
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foreach(var entry in scannedEntries)
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{
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_javaEntrys[entry.Installation.JavaExePath] = entry;
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}
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}
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}
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private static bool _ShouldEnableByDefault(JavaInstallation inst)
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{
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var libDir = Path.Combine(Directory.GetParent(inst.JavaFolder)!.FullName, "lib");
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var isUsable = (!inst.IsJre && File.Exists(Path.Combine(libDir, "jvm.lib"))) ||
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(inst.IsJre && File.Exists(Path.Combine(libDir, "rt.jar")));
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return !((inst.IsJre && inst.MajorVersion > 8) ||
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(inst.Is64Bit ^ Environment.Is64BitOperatingSystem) ||
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!isUsable);
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}
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public List<JavaEntry> GetSortedJavaList()
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{
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var ret = _javaEntrys.Values.ToList();
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ret.Sort((a, b) =>
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{
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var versionCmp = a.Installation.Version.CompareTo(b.Installation.Version);
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if (versionCmp != 0) return versionCmp;
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return a.Installation.Brand - b.Installation.Brand;
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});
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ret.Reverse();
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return ret;
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}
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public bool Existing64BitJava()
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{
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lock (_javaEntrys)
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{
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return _javaEntrys.Any(x => x.Value.Installation.Is64Bit);
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}
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}
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public bool ExistAnyJava()
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{
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return _javaEntrys.Count != 0;
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}
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public bool Exist(string javaExePath)
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{
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return _javaEntrys.ContainsKey(javaExePath);
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}
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/// <summary>
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/// 获取，如果没有就加入记录
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/// </summary>
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/// <param name="javaExePath"></param>
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/// <returns></returns>
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/// <exception cref="ArgumentException"></exception>
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public JavaEntry? AddOrGet(string javaExePath)
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{
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try
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{
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if (javaExePath.IsNullOrWhiteSpace() || !File.Exists(javaExePath)) return null;
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var installation = _parser.Parse(javaExePath);
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if (installation is null) return null;
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var exePath = _NormalizePath(installation.JavaExePath);
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lock (_javaEntrys)
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{
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if (_javaEntrys.TryGetValue(exePath, out var ret))
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return ret;
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var entry = new JavaEntry
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{
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Installation = installation,
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IsEnabled = _ShouldEnableByDefault(installation),
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Source = JavaSource.ManualAdded
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};
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_javaEntrys.Add(exePath, entry);
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return entry;
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}
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}
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catch(Exception ex)
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{
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LogWrapper.Error(ex, ModuleName, $"Failed to add or get {javaExePath}");
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return null;
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}
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}
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/// <summary>
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/// 仅获取，如果没有不增加记录
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/// </summary>
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public JavaEntry? Get(string javaExePath)
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{
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try
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{
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if (javaExePath.IsNullOrWhiteSpace() || !File.Exists(javaExePath)) return null;
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var installation = _parser.Parse(javaExePath);
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if (installation is null) return null;
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var exePath = _NormalizePath(installation.JavaExePath);
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lock (_javaEntrys)
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{
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if (_javaEntrys.TryGetValue(exePath, out var ret))
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return ret;
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var entry = new JavaEntry
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{
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Installation = installation,
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IsEnabled = _ShouldEnableByDefault(installation),
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Source = JavaSource.ManualAdded
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};
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return entry;
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}
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}
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catch (Exception ex)
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{
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LogWrapper.Error(ex, ModuleName, $"Failed to get {javaExePath}");
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return null;
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}
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}
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public async Task<JavaEntry[]> SelectSuitableJavaAsync(Version minVersion, Version maxVersion)
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{
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if (_javaEntrys.Count == 0)
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await ScanJavaAsync();
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lock (_javaEntrys)
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{
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return _javaEntrys
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.Values.ToList()
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.Where(j => j.Installation.IsStillAvailable && j.IsEnabled &&
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IsVersionSuitable(j.Installation.Version, minVersion, maxVersion))
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.OrderBy(static j => j.Installation.MajorVersion) // 确保首要选择的大版本正确
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.ThenBy(static j => j.Installation.IsJre) // JDK 优先
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.ThenBy(static j => j.Installation.Brand) // Java 发行版优选
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.ThenByDescending(static j => j.Installation.Version) // 优选后小版本号较高的版本
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.ToArray();
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}
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}
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public void CheckAllAvailability()
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{
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lock (_javaEntrys)
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{
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var keys4Remove = _javaEntrys
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.Where(kv => !kv.Value.Installation.IsStillAvailable)
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.Select(kv => kv.Key)
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.ToArray();
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foreach (var key in keys4Remove)
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_javaEntrys.Remove(key);
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}
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}
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// ===== 路径工具 =====
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private static string _NormalizePath(string path) =>
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Path.GetFullPath(path.TrimEnd(Path.DirectorySeparatorChar, Path.AltDirectorySeparatorChar))
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.TrimEnd(Path.DirectorySeparatorChar, Path.AltDirectorySeparatorChar);
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private static bool _ShouldExcludePath(string path) =>
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path.Split(Path.DirectorySeparatorChar, Path.AltDirectorySeparatorChar)
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.Any(part => JavaConsts.ExcludeFolderNames.Contains(part, StringComparer.OrdinalIgnoreCase));
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/// <summary>
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/// 将 Java 版本规范化为统一比较格式（1.8.0 → 8.0.0）
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/// </summary>
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public static Version NormalizeVersion(Version version) =>
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version.Major == 1 && version.Minor >= 0
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? new Version(version.Minor, Math.Max(version.Build, 0), Math.Max(version.Revision, 0))
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: version;
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// ===== 版本处理工具 =====
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/// <summary>
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/// 检查版本是否在指定范围内（闭区间）
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/// </summary>
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public static bool IsVersionSuitable(Version javaVersion, Version minVersion, Version maxVersion)
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{
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var normalizedJava = NormalizeVersion(javaVersion);
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var normalizedMin = NormalizeVersion(minVersion);
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var normalizedMax = NormalizeVersion(maxVersion);
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return normalizedJava >= normalizedMin && normalizedJava <= normalizedMax;
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}
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}
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