public static string GetLibraryName(Configuration conf)
{
if (IsNativeBzip2Loaded(conf))
{
return(Bzip2Compressor.GetLibraryName());
}
else
{
return(bzip2LibraryName);
}
}
/// <summary>
/// Check if native-bzip2 code is loaded & initialized correctly and
/// can be loaded for this job.
/// </summary>
/// <param name="conf">configuration</param>
/// <returns>
/// <code>true</code> if native-bzip2 is loaded & initialized
/// and can be loaded for this job, else <code>false</code>
/// </returns>
public static bool IsNativeBzip2Loaded(Configuration conf)
{
lock (typeof(Bzip2Factory))
{
string libname = conf.Get("io.compression.codec.bzip2.library", "system-native");
if (!bzip2LibraryName.Equals(libname))
{
nativeBzip2Loaded = false;
bzip2LibraryName = libname;
if (libname.Equals("java-builtin"))
{
Log.Info("Using pure-Java version of bzip2 library");
}
else
{
if (conf.GetBoolean(CommonConfigurationKeys.IoNativeLibAvailableKey, CommonConfigurationKeys
.IoNativeLibAvailableDefault) && NativeCodeLoader.IsNativeCodeLoaded())
{
try
{
// Initialize the native library.
Bzip2Compressor.InitSymbols(libname);
Bzip2Decompressor.InitSymbols(libname);
nativeBzip2Loaded = true;
Log.Info("Successfully loaded & initialized native-bzip2 library " + libname);
}
catch
{
Log.Warn("Failed to load/initialize native-bzip2 library " + libname + ", will use pure-Java version"
);
}
}
}
}
return(nativeBzip2Loaded);
}
}