sparrowwallet/usb4java
sparrowwallet/usb4java
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Move os, arch and ext names into constants

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This commit is contained in:
Klaus Reimer 2013-02-20 17:42:01 +01:00
parent 02ebe76c65
commit c2fb86f1d8
1 changed files with 64 additions and 25 deletions
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89
src/main/java/de/ailis/usb4java/jni/Loader.java
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@ -14,11 +14,50 @@ import java.net.URL;
/**
* Utility class to load native libraries from classpath.
*
*
* @author Klaus Reimer (k@ailis.de)
*/
public final class Loader
{
/** Constant for Mac OS X operating system. */
private static final String OS_MACOSX = "macosx";
/** Constant for Linux operating system. */
private static final String OS_LINUX = "linux";
/** Constant for Windows operating system. */
private static final String OS_WINDOWS = "windows";
/** Constant for FreeBSD operating system. */
private static final String OS_FREEBSD = "freebsd";
/** Constant for SunOS operating system. */
private static final String OS_SUNOS = "sunos";
/** Constant for i386 architecture. */
private static final String ARCH_I386 = "i386";
/** Constant for x86 architecture. */
private static final String ARCH_X86 = "x86";
/** Constant for x86_64 architecture. */
private static final String ARCH_X86_64 = "x86_64";
/** Constant for amd64 architecture. */
private static final String ARCH_AMD64 = "amd64";
/** Constant for universal architecture. */
private static final String ARCH_UNIVERSAL = "universal";
/** Constant for so file extension. */
private static final String EXT_SO = "so";
/** Constant for dll file extension. */
private static final String EXT_DLL = "dll";
/** Constant for dylib file extension. */
private static final String EXT_DYLIB = "dylib";
/** The temporary directory for native libraries. */
private static File tmp;
@ -38,13 +77,13 @@ public final class Loader
* "macosx" or (for any other non-supported platform) the value of the
* "os.name" property converted to lower case and with removed space
* characters.
*
*
* @return The operating system name.
*/
private static String getOS()
{
final String os = System.getProperty("os.name");
if (os.contains("Windows")) return "windows";
if (os.toLowerCase().contains(OS_WINDOWS)) return OS_WINDOWS;
return os.toLowerCase().replace(" ", "");
}
@ -53,22 +92,22 @@ public final class Loader
* names i386 und amd64 are converted accordingly) or (when platform is
* unsupported) the value of os.arch converted to lower-case and with
* removed space characters.
*
*
* @return The CPU architecture
*/
private static String getArch()
{
final String os = getOS();
if (os.equals("macosx")) return "universal";
if (os.equals(OS_MACOSX)) return ARCH_UNIVERSAL;
final String arch = System.getProperty("os.arch");
if (arch.equals("i386")) return "x86";
if (arch.equals("amd64")) return "x86_64";
if (arch.equals(ARCH_I386)) return ARCH_X86;
if (arch.equals(ARCH_AMD64)) return ARCH_X86_64;
return arch.toLowerCase().replace(" ", "");
}
/**
* Returns the shared library extension name.
*
*
* @return The shared library extension name.
*/
private static String getExt()
@ -77,12 +116,12 @@ public final class Loader
final String key = "usb4java.libext." + getOS();
final String ext = System.getProperty(key);
if (ext != null) return ext;
if (os.equals("linux") || os.equals("freebsd") || os.equals("sunos"))
return "so";
if (os.equals("windows"))
return "dll";
if (os.equals("macosx"))
return "dylib";
if (os.equals(OS_LINUX) || os.equals(OS_FREEBSD) || os.equals(OS_SUNOS))
return EXT_SO;
if (os.equals(OS_WINDOWS))
return EXT_DLL;
if (os.equals(OS_MACOSX))
return EXT_DYLIB;
throw new LoaderException("Unable to determine the shared library " +
"file extension for operating system '" + os +
"'. Please specify Java parameter -D" + key + "=<FILE-EXTENSION>");
@ -91,7 +130,7 @@ public final class Loader
/**
* Creates the temporary directory used for unpacking the native libraries.
* This directory is marked for deletion on exit.
*
*
* @return The temporary directory for native libraries.
*/
private static File createTempDirectory()
@ -117,7 +156,7 @@ public final class Loader
/**
* Returns the platform name. This could be for example "linux-x86" or
* "windows-x86_64".
*
*
* @return The architecture name. Never null.
*/
private static String getPlatform()
@ -128,7 +167,7 @@ public final class Loader
/**
* Returns the name of the usb4java native library. This could be
* "libusb4java.dll" for example.
*
*
* @return The usb4java native library name. Never null.
*/
private static String getLibName()
@ -140,20 +179,20 @@ public final class Loader
* Returns the name of the libusb native library. This could be
* "libusb0.dll" for example or null if this library is not needed on the
* current platform (Because it is provided by the operating system).
*
*
* @return The libusb native library name or null if not needed.
*/
private static String getExtraLibName()
{
String os = getOS();
if (os.equals("windows")) return "libusb0.dll";
if (os.equals("mnacosx")) return "libusb.dylib";
final String os = getOS();
if (os.equals(OS_WINDOWS)) return "libusb0." + EXT_DLL;
if (os.equals(OS_MACOSX)) return "libusb." + EXT_DYLIB;
return null;
}
/**
* Copies the specified input stream to the specified output file.
*
*
* @param input
* The input stream.
* @param output
@ -182,7 +221,7 @@ public final class Loader
/**
* Extracts a single library.
*
*
* @param platform
* The platform name (For example "linux-x86")
* @param lib
@ -252,7 +291,7 @@ public final class Loader
* Extracts the usb4java library (and the libusb library if needed) and
* returns the absolute filename to be loaded by Java. The extracted
* libraries are marked for deletion on exit.
*
*
* @return The absolute path to the extracted usb4java library.
*/
private static String extract()
@ -272,7 +311,7 @@ public final class Loader
* called when the {@link USB} class is loaded. When you need to do it
* earlier (To catch exceptions for example) then simply call this method
* manually.
*
*
* @throws LoaderException
* When loading the native wrapper libraries failed.
*/