public static void Find(out string javaPath)
{
// Read saved path from config.
javaPath = null;
if (File.Exists(Attributes.ConfigPath))
{
javaPath = Ini.ReadDirect("Java", "Path", Attributes.ConfigPath);
if (!string.IsNullOrWhiteSpace(javaPath))
{
javaPath = PathEx.Combine(javaPath);
}
if (File.Exists(javaPath))
{
goto Found;
}
}
// Try getting the default path from Portable Apps Suite JRE installation.
try
{
var dir = EnvironmentEx.GetVariableValue("AppsSuiteDir");
if (Directory.Exists(dir))
{
#if x86
dir = Path.Combine(dir, "Apps", "CommonFiles", "Java");
#else
dir = Path.Combine(dir, "Apps", "CommonFiles", "Java64");
if (!Directory.Exists(dir))
{
Path.Combine(dir, "Apps", "CommonFiles", "Java");
}
#endif
if (Directory.Exists(dir))
{
javaPath = GetPath(dir);
if (File.Exists(javaPath))
{
goto Found;
}
}
}
}
catch (Exception ex)
{
Log.Write(ex);
}
// Start searching for the portable JRE, starting in the current directory.
try
{
var dir = PathEx.LocalDir;
var drive = new DriveInfo(dir).RootDirectory.Root.Name;
int count = 0, length = dir.Split(Path.DirectorySeparatorChar).Length;
var subs = new[]
{
#if x64
"_CommonFiles\\Java64",
"CommonFiles\\Java64",
#endif
"_CommonFiles\\Java",
"CommonFiles\\Java"
};
while (!drive.ContainsEx(dir) && ++count < length)
{
foreach (var sub in subs)
{
var tmp = Path.Combine(dir, sub);
if (!Directory.Exists(tmp))
{
continue;
}
javaPath = GetPath(tmp);
if (File.Exists(javaPath))
{
goto Found;
}
}
dir = PathEx.Combine(dir, "..").TrimEnd(Path.DirectorySeparatorChar);
}
}
catch (Exception ex)
{
Log.Write(ex);
}
// Try getting the default path from the global JRE installation.
try
{
var dirs = new[]
{
"%ProgramFiles%\\Java",
#if x64
"%ProgramFiles(x86)%\\Java",
#endif
"%ProgramData%\\Oracle\\Java\\javapath"
};
foreach (var dir in dirs.Select(PathEx.Combine))
{
if (!Directory.Exists(dir))
{
continue;
}
javaPath = GetPath(dir);
if (File.Exists(javaPath))
{
goto Found;
}
}
}
catch (Exception ex)
{
Log.Write(ex);
}
// If JRE was not found.
MessageBox.Show(Strings.JavaWarnMessage, AssemblyInfo.Title, MessageBoxButtons.OK, MessageBoxIcon.Error);
Environment.ExitCode = 1;
Environment.Exit(Environment.ExitCode);
// Else
Found:
var envPath = EnvironmentEx.GetVariablePathFull(javaPath);
Ini.WriteDirect(nameof(JavaHandler), "Path", envPath, Attributes.ConfigPath);
var usageDir = PathEx.Combine("%UserProfile%\\.oracle_jre_usage");
try
{
if (!Directory.Exists(usageDir))
{
Directory.CreateDirectory(usageDir);
}
DirectoryEx.SetAttributes(usageDir, FileAttributes.Hidden);
}
catch (Exception ex)
{
Log.Write(ex);
}
AppDomain.CurrentDomain.ProcessExit += (s, e) => DirectoryEx.TryDelete(usageDir);
}
