ur_rna.Utilities

Class JniLoader

java.lang.Object

ur_rna.Utilities.JniLoader

public class JniLoader
extends java.lang.Object

Loads a Native library or returns helpful error information if unsuccessful.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	JniLoader.NativeLibLoadError

Field Summary

Fields

Modifier and Type	Field and Description
private java.util.List<java.lang.String>	allowedNames
private java.lang.String	libraryTitle
private java.lang.String	minVersion
private java.util.function.Supplier<java.lang.String>	versionCheck

Constructor Summary

Constructors

Constructor and Description
JniLoader(java.lang.String libraryTitle)
JniLoader(java.lang.String libraryTitle, java.lang.String... possibleLibNames)
JniLoader(java.lang.String libraryTitle, java.util.function.Supplier<java.lang.String> versionCheck, java.lang.String requireMinVersion, java.lang.String... possibleLibNames)

Method Summary

Modifier and Type	Method and Description
void	addLibName(java.lang.String possibleName)
java.util.List<java.lang.String>	getAllowedLibNames()
static java.lang.String	getJvmBits()
static java.lang.String	getJvmBits(java.lang.String result32, java.lang.String result64) Detect the architecture of the Java platform (32 or 64 bits -- this is NOT necessarily the architecture of the OS!!)
private java.lang.String[]	getLibNames()
java.lang.String	getLoadedLib()
void	load()
private void	setLibPath(java.lang.String javaLibraryPath) Set the java.library.path System property and ensure that it will be re-evaluated by ClassLoaders
private boolean	tryLoadLibrary(java.lang.String[] libNames, java.lang.Throwable[] errors)

Methods inherited from class java.lang.Object

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

Field Detail

allowedNames

private java.util.List<java.lang.String> allowedNames

libraryTitle

private java.lang.String libraryTitle

minVersion

private java.lang.String minVersion

versionCheck

private java.util.function.Supplier<java.lang.String> versionCheck

Constructor Detail

JniLoader

public JniLoader(java.lang.String libraryTitle)

JniLoader

public JniLoader(java.lang.String libraryTitle,
                 java.lang.String... possibleLibNames)

JniLoader

public JniLoader(java.lang.String libraryTitle,
                 java.util.function.Supplier<java.lang.String> versionCheck,
                 java.lang.String requireMinVersion,
                 java.lang.String... possibleLibNames)

Method Detail

addLibName

public void addLibName(java.lang.String possibleName)

getAllowedLibNames

public java.util.List<java.lang.String> getAllowedLibNames()

getJvmBits

public static java.lang.String getJvmBits()

getJvmBits

public static java.lang.String getJvmBits(java.lang.String result32,
                                          java.lang.String result64)

Detect the architecture of the Java platform (32 or 64 bits -- this is NOT necessarily the architecture of the OS!!)

Returns:

returns result32 is the Java VM is 32-bit or result64 if the JVM is 64-bit.

getLibNames

private java.lang.String[] getLibNames()

getLoadedLib

public java.lang.String getLoadedLib()

load

public void load()
          throws JniLoader.NativeLibLoadError

Throws:

JniLoader.NativeLibLoadError

setLibPath

private void setLibPath(java.lang.String javaLibraryPath)

Set the java.library.path System property and ensure that it will be re-evaluated by ClassLoaders

Parameters:

javaLibraryPath - The new setting for java.library.path

tryLoadLibrary

private boolean tryLoadLibrary(java.lang.String[] libNames,
                               java.lang.Throwable[] errors)