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package demos.misc;
/**
* VersionInfo.java <BR>
* author: Travis Bryson <P>
*
* This program returns the version and implementation information for the Java
* Bindings for OpenGL (R) implementation found in the CLASSPATH. This information
* is also found in the manifest for jogl.jar, and this program uses the
* java.lang.Package class to retrieve it programatically.
**/
public class VersionInfo {
public VersionInfo() {
ClassLoader classLoader = getClass().getClassLoader();
pkgInfo(classLoader, "javax.media.opengl", "GL");
}
static void pkgInfo(ClassLoader classLoader,
String pkgName,
String className) {
try {
classLoader.loadClass(pkgName + "." + className);
Package p = Package.getPackage(pkgName);
if (p == null) {
System.out.println("WARNING: Package.getPackage(" +
pkgName +
") is null");
}
else {
System.out.println(p);
System.out.println("Specification Title = " +
p.getSpecificationTitle());
System.out.println("Specification Vendor = " +
p.getSpecificationVendor());
System.out.println("Specification Version = " +
p.getSpecificationVersion());
System.out.println("Implementation Vendor = " +
p.getImplementationVendor());
System.out.println("Implementation Version = " +
p.getImplementationVersion());
}
}
catch (ClassNotFoundException e) {
System.out.println("Unable to load " + pkgName);
}
System.out.println();
}
public static void main(String[] args) {
new VersionInfo();
}
}
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