sparrowwallet/usb4java
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Merge pull request #80 from elektrika-inc/loader-property

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Allow specifying library name through system property
This commit is contained in:
Luca Longinotti 2025-05-09 12:23:37 +02:00 committed by GitHub
commit 7b5bbdc81e
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1 changed files with 19 additions and 6 deletions
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25
src/main/java/org/usb4java/Loader.java
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@ -300,6 +300,11 @@ public final class Loader
* times. Duplicate calls are ignored. This method is automatically called
* when the {@link LibUsb} class is loaded. When you need to do it earlier
* (To catch exceptions for example) then simply call this method manually.
* <p/>
* If the system property <tt>org.usb4java.LibraryName</tt> is defined, then
* instead of going through the classpath looking for the appropriate DLL,
* extracting it, etc., we simply call {@link System#loadLibrary}, passing
* in the value of the property.
*
* @throws LoaderException
* When loading the native wrapper libraries failed.
@ -313,13 +318,21 @@ public final class Loader
}
loaded = true;
final String platform = getPlatform();
final String lib = getLibName();
final String extraLib = getExtraLibName();
if (extraLib != null)
final String libraryName = System.getProperty("org.usb4java.LibraryName");
if (libraryName != null)
{
System.load(extractLibrary(platform, extraLib));
System.loadLibrary(libraryName);
}
else
{
final String platform = getPlatform();
final String lib = getLibName();
final String extraLib = getExtraLibName();
if (extraLib != null)
{
System.load(extractLibrary(platform, extraLib));
}
System.load(extractLibrary(platform, lib));
}
System.load(extractLibrary(platform, lib));
}
}