/// <summary>Return true if the JNI-based native CRC extensions are available.</summary>
public static bool IsAvailable()
{
return(NativeCodeLoader.IsNativeCodeLoaded());
}
/// <summary>A tool to test native library availability,</summary>
public static void Main(string[] args)
{
string usage = "NativeLibraryChecker [-a|-h]\n" + " -a use -a to check all libraries are available\n"
+ " by default just check hadoop library (and\n" + " winutils.exe on Windows OS) is available\n"
+ " exit with error code 1 if check failed\n" + " -h print this message\n";
if (args.Length > 1 || (args.Length == 1 && !(args[0].Equals("-a") || args[0].Equals
("-h"))))
{
System.Console.Error.WriteLine(usage);
ExitUtil.Terminate(1);
}
bool checkAll = false;
if (args.Length == 1)
{
if (args[0].Equals("-h"))
{
System.Console.Out.WriteLine(usage);
return;
}
checkAll = true;
}
Configuration conf = new Configuration();
bool nativeHadoopLoaded = NativeCodeLoader.IsNativeCodeLoaded();
bool zlibLoaded = false;
bool snappyLoaded = false;
// lz4 is linked within libhadoop
bool lz4Loaded = nativeHadoopLoaded;
bool bzip2Loaded = Bzip2Factory.IsNativeBzip2Loaded(conf);
bool openSslLoaded = false;
bool winutilsExists = false;
string openSslDetail = string.Empty;
string hadoopLibraryName = string.Empty;
string zlibLibraryName = string.Empty;
string snappyLibraryName = string.Empty;
string lz4LibraryName = string.Empty;
string bzip2LibraryName = string.Empty;
string winutilsPath = null;
if (nativeHadoopLoaded)
{
hadoopLibraryName = NativeCodeLoader.GetLibraryName();
zlibLoaded = ZlibFactory.IsNativeZlibLoaded(conf);
if (zlibLoaded)
{
zlibLibraryName = ZlibFactory.GetLibraryName();
}
snappyLoaded = NativeCodeLoader.BuildSupportsSnappy() && SnappyCodec.IsNativeCodeLoaded
();
if (snappyLoaded && NativeCodeLoader.BuildSupportsSnappy())
{
snappyLibraryName = SnappyCodec.GetLibraryName();
}
if (OpensslCipher.GetLoadingFailureReason() != null)
{
openSslDetail = OpensslCipher.GetLoadingFailureReason();
openSslLoaded = false;
}
else
{
openSslDetail = OpensslCipher.GetLibraryName();
openSslLoaded = true;
}
if (lz4Loaded)
{
lz4LibraryName = Lz4Codec.GetLibraryName();
}
if (bzip2Loaded)
{
bzip2LibraryName = Bzip2Factory.GetLibraryName(conf);
}
}
// winutils.exe is required on Windows
winutilsPath = Shell.GetWinUtilsPath();
if (winutilsPath != null)
{
winutilsExists = true;
}
else
{
winutilsPath = string.Empty;
}
System.Console.Out.WriteLine("Native library checking:");
System.Console.Out.Printf("hadoop: %b %s%n", nativeHadoopLoaded, hadoopLibraryName
);
System.Console.Out.Printf("zlib: %b %s%n", zlibLoaded, zlibLibraryName);
System.Console.Out.Printf("snappy: %b %s%n", snappyLoaded, snappyLibraryName);
System.Console.Out.Printf("lz4: %b %s%n", lz4Loaded, lz4LibraryName);
System.Console.Out.Printf("bzip2: %b %s%n", bzip2Loaded, bzip2LibraryName);
System.Console.Out.Printf("openssl: %b %s%n", openSslLoaded, openSslDetail);
if (Shell.Windows)
{
System.Console.Out.Printf("winutils: %b %s%n", winutilsExists, winutilsPath);
}
if ((!nativeHadoopLoaded) || (Shell.Windows && (!winutilsExists)) || (checkAll &&
!(zlibLoaded && snappyLoaded && lz4Loaded && bzip2Loaded)))
{
// return 1 to indicated check failed
ExitUtil.Terminate(1);
}
}