Kilim.java

package kilim.tools;

import java.lang.reflect.Method;

import kilim.WeavingClassLoader;



/**
 * Invoke as java -Dkilim.classpath="classDir1:classDir2:jar1.jar:..." Kilim  class args...
 * 
 * This class dynamically weaves kilim-related classes and runs "class". The classpath
 * specified must not be in the main classpath, otherwise the system class loader will 
 * use the raw, unwoven classes. 
 */
public class Kilim {
    public static void main(String[] args) throws Exception {
        if (args.length == 0) {
            usage();
        }
        String className = args[0];
        args = processArgs(args);
        WeavingClassLoader wcl = new WeavingClassLoader(Thread.currentThread().getContextClassLoader());
        Class<?> mainClass = wcl.loadClass(className);
        Method mainMethod = mainClass.getMethod("main", new Class[]{String[].class});
        mainMethod.invoke(null,new Object[] {args});
    }

    private static void usage() {
        System.out.println("java -Dkilim.classpath kilim.tools.Kilim class [args ...]");
        System.exit(1);
    }

    private static String[] processArgs(String[] args) {
        String[] ret = new String[args.length-1];
        if (ret.length > 0) 
            System.arraycopy(args, 1, ret, 0, ret.length);
        return ret;
    }
}