org.scijava.nativelib

Class BaseJniExtractor

java.lang.Object

org.scijava.nativelib.BaseJniExtractor

All Implemented Interfaces:

JniExtractor

Direct Known Subclasses:

DefaultJniExtractor, WebappJniExtractor

public abstract class BaseJniExtractor
extends Object
implements JniExtractor

Author:

Richard van der Hoff (richardv@mxtelecom.com)

Constructor Summary

Constructors

Constructor and Description
BaseJniExtractor()
BaseJniExtractor(Class<?> libraryJarClass)

Method Summary

Modifier and Type	Method and Description
File	extractJni(String libPath, String libname) Extract a JNI library from the classpath to a temporary file.
void	extractRegistered() Extract all libraries which are registered for auto-extraction to files in the temporary directory.
abstract File	getJniDir() this is where JNI libraries are extracted to (e.g.
abstract File	getNativeDir() this is where native dependencies are extracted to (e.g.

Methods inherited from class java.lang.Object

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

Constructor Detail

BaseJniExtractor

public BaseJniExtractor()
                 throws IOException

Throws:

IOException

BaseJniExtractor

public BaseJniExtractor(Class<?> libraryJarClass)
                 throws IOException

Throws:

IOException

Method Detail

getNativeDir

public abstract File getNativeDir()

this is where native dependencies are extracted to (e.g. tmplib/).

Returns:

native working dir

getJniDir

public abstract File getJniDir()

this is where JNI libraries are extracted to (e.g. tmplib/classloaderName.1234567890000.0/).

Returns:

jni working dir

extractJni

public File extractJni(String libPath,
                       String libname)
                throws IOException

Extract a JNI library from the classpath to a temporary file.

Specified by:

extractJni in interface JniExtractor

Parameters:

libPath - library path

libname - System.loadLibrary() compatible library name

Returns:

the extracted file

Throws:

IOException

extractRegistered

public void extractRegistered()
                       throws IOException

Extract all libraries which are registered for auto-extraction to files in the temporary directory.

Specified by:

extractRegistered in interface JniExtractor

Throws:

IOException