/** adds an entry to the class path */
public void addClassPath(String cp) {
UnixFile f = new UnixFile(cp);
// use the URLClassLoader
if (useSystem) {
try {
addURL(f.toURL());
if (verbose)
System.out.println("RJavaClassLoader: added '" + cp + "' to the URL class path loader");
// return; // we need to add it anyway so it appears in .jclassPath()
} catch (Exception ufe) {
}
}
UnixFile g = null;
if (f.isFile() && (f.getName().endsWith(".jar") || f.getName().endsWith(".JAR"))) {
g = new UnixJarFile(cp);
if (verbose)
System.out.println(
"RJavaClassLoader: adding Java archive file '" + cp + "' to the internal class path");
} else if (f.isDirectory()) {
g = new UnixDirectory(cp);
if (verbose)
System.out.println(
"RJavaClassLoader: adding class directory '" + cp + "' to the internal class path");
} else if (verbose)
System.err.println(
f.exists()
? ("WARNING: the path '"
+ cp
+ "' is neither a directory nor a .jar file, it will NOT be added to the internal class path!")
: ("WARNING: the path '"
+ cp
+ "' does NOT exist, it will NOT be added to the internal class path!"));
if (g != null && !classPath.contains(g)) {
// this is the real meat - add it to our internal list
classPath.add(g);
// this is just cosmetics - it doesn't really have any meaning
System.setProperty(
"java.class.path",
System.getProperty("java.class.path") + File.pathSeparator + g.getPath());
}
}
// {{{ findResource
public URL findResource(String name) {
if (verbose) System.out.println("RJavaClassLoader: findResource('" + name + "')");
// {{{ use the standard way
if (useSystem) {
try {
URL u = super.findResource(name);
if (u != null) {
if (verbose)
System.out.println("RJavaClassLoader: found resource in " + u + " using URL loader.");
return u;
}
} catch (Exception fre) {
}
}
// }}}
// {{{ iterate through the classpath
if (verbose) System.out.println(" - resource not found with URL loader, trying alternative");
Enumeration /*<UnixFile>*/ e = classPath.elements();
while (e.hasMoreElements()) {
UnixFile cp = (UnixFile) e.nextElement();
try {
/* is a file - assume it is a jar file */
if (cp instanceof UnixJarFile) {
URL u = ((UnixJarFile) cp).getResource(name);
if (u != null) {
if (verbose) System.out.println(" - found in a JAR file, URL " + u);
return u;
}
} else if (cp instanceof UnixDirectory) {
UnixFile res_f = new UnixFile(cp.getPath() + "/" + name);
if (res_f.isFile()) {
if (verbose) System.out.println(" - find as a file: " + res_f);
return res_f.toURL();
}
}
} catch (Exception iox) {
}
}
// }}}
return null;
}
