Package org.apache.bookkeeper.common.util.nativelib

Class NativeUtils

java.lang.Object

org.apache.bookkeeper.common.util.nativelib.NativeUtils

public final class NativeUtils
extends Object

Utility class to load jni library from inside a JAR.

Field Summary

Fields

Modifier and Type	Field	Description
static final String	OS_NAME
static final String	TEMP_WORKDIR_PROPERTY_NAME

Method Summary

Modifier and Type	Method	Description
static void	checkArgument(boolean expression, @NonNull Object errorMessage)
static String	libType()	Returns jni library extension based on OS specification.
static void	loadLibraryFromJar(String path)	loads given library from the this jar.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

OS_NAME

public static final String OS_NAME

TEMP_WORKDIR_PROPERTY_NAME

public static final String TEMP_WORKDIR_PROPERTY_NAME

See Also:

• Constant Field Values

Method Details

loadLibraryFromJar

public static void loadLibraryFromJar(String path)
                               throws Exception

loads given library from the this jar. ie: this jar contains: /lib/pulsar-checksum.jnilib

Parameters:

path - : absolute path of the library in the jar
if this jar contains: /lib/pulsar-checksum.jnilib then provide the same absolute path as input

Throws:

Exception

libType

public static String libType()

Returns jni library extension based on OS specification. Maven-nar generates jni library based on different OS : http://mark.donszelmann.org/maven-nar-plugin/aol.html (jni.extension)

Returns:

library type

checkArgument

public static void checkArgument(boolean expression,
 @NonNull
 @NonNull Object errorMessage)