private static Echo[] spawnAndTest() {
System.err.println("\nCreate Test-->");
Echo[] echo = new Echo[protocol.length];
for (int i = 0; i < protocol.length; i++) {
JavaVM serverVM =
new JavaVM("EchoImpl", "-Djava.security.policy=" + TestParams.defaultPolicy, protocol[i]);
System.err.println("\nusing protocol: " + (protocol[i] == "" ? "none" : protocol[i]));
try {
/* spawn VM for EchoServer */
serverVM.start();
/* lookup server */
int tries = 12; // need enough tries for slow machine.
echo[i] = null;
do {
try {
echo[i] = (Echo) Naming.lookup("//:" + REGISTRY_PORT + "/EchoServer");
break;
} catch (NotBoundException e) {
try {
Thread.sleep(2000);
} catch (Exception ignore) {
}
continue;
}
} while (--tries > 0);
if (echo[i] == null) TestLibrary.bomb("server not bound in 12 tries", null);
/* invoke remote method and print result*/
System.err.println("Bound to " + echo[i]);
byte[] data = ("Greetings, citizen " + System.getProperty("user.name") + "!").getBytes();
byte[] result = echo[i].echoNot(data);
for (int j = 0; j < result.length; j++) result[j] = (byte) ~result[j];
System.err.println("Result: " + new String(result));
echo[i].shutdown();
} catch (Exception e) {
TestLibrary.bomb("test failed", e);
} finally {
serverVM.destroy();
try {
Naming.unbind("//:" + REGISTRY_PORT + "/EchoServer");
} catch (Exception e) {
TestLibrary.bomb("unbinding EchoServer", e);
}
}
}
return echo;
}
private static void reactivateAndTest(Echo[] echo) {
System.err.println("\nReactivate Test-->");
for (int i = 0; i < echo.length; i++) {
try {
System.err.println("\nusing protocol: " + (protocol[i] == "" ? "none" : protocol[i]));
byte[] data = ("Greetings, citizen " + System.getProperty("user.name") + "!").getBytes();
byte[] result = echo[i].echoNot(data);
for (int j = 0; j < result.length; j++) result[j] = (byte) ~result[j];
System.err.println("Result: " + new String(result));
echo[i].shutdown();
} catch (Exception e) {
TestLibrary.bomb("activating EchoServer for protocol " + protocol[i], e);
}
}
}
/**
* Contact a belief network context, get the helper list, and search the list to see if there's a
* helper which matches the type sequence specified. If there's more than one helper which
* matches, find the ``best fit.''
*
* <p>The class and count scores of the best-fitting helper class are written into
* <tt>max_class_score[0]</tt> and <tt>max_count_score[0]</tt>, respectively.
*/
public static Class find_helper_class0(
Vector seq, String helper_type, int[] max_class_score, int[] max_count_score)
throws ClassNotFoundException {
long t0 = System.currentTimeMillis();
if (bnc != null) // make sure the reference is still alive
try {
bnc.get_name();
} catch (RemoteException e) {
bnc = null;
}
if (bnc == null) // need to locate a context
{
String cb = System.getProperty("java.rmi.server.codebase", "http://localhost");
long tt0 = System.currentTimeMillis();
try {
bnc = BeliefNetworkContext.locate_context(new URL(cb).getHost());
} catch (Exception e) {
throw new ClassNotFoundException("nested: " + e);
}
}
String[] helperlist;
try {
helperlist = bnc.get_helper_names(helper_type);
} catch (RemoteException e) {
throw new ClassNotFoundException("bnc.get_helper_names failed");
}
int[] class_score1 = new int[1], count_score1 = new int[1];
max_class_score[0] = -1;
max_count_score[0] = -1;
Class cmax_score = null;
for (int i = 0; i < helperlist.length; i++) {
try {
Class c = RMIClassLoader.loadClass(helperlist[i]);
SeqTriple[] sm = (SeqTriple[]) invoke_description(c);
if (sm == null) continue; // apparently not a helper class
if (MatchClassPattern.matches(sm, seq, class_score1, count_score1)) {
if (class_score1[0] > max_class_score[0]
|| (class_score1[0] == max_class_score[0] && count_score1[0] > max_count_score[0])) {
cmax_score = c;
max_class_score[0] = class_score1[0];
max_count_score[0] = count_score1[0];
}
}
} catch (Exception e2) {
System.err.println("PiHelperLoader: attempt to load " + helperlist[i] + " failed; " + e2);
}
}
if (cmax_score == null) {
System.err.println("find_helper_class0: failed; helper list:");
for (int i = 0; i < helperlist.length; i++) System.err.println("\t" + helperlist[i]);
String s = "";
for (Enumeration e = seq.elements(); e.hasMoreElements(); ) {
try {
Class c = (Class) e.nextElement();
s += c.getName() + ",";
} catch (NoSuchElementException ee) {
s += "???" + ",";
}
}
throw new ClassNotFoundException("no " + helper_type + " helper for sequence [" + s + "]");
}
// FOR NOW IGNORE THE POSSIBILITY OF TWO OR MORE MATCHES !!!
return cmax_score;
}
public class NotActivatableServerImpl extends UnicastRemoteObject
implements NotActivatableInterface {
private static final String PROG_NAME = "NotActivatableServerImpl";
private static final String SERVER_OBJECT = "NotActivatableServer";
private static final String CLASS_NAME = "activation.NotActivatableServerImpl";
private static final String POLICY_FILE = "policy_file";
private static final String USER_DIR = System.getProperty("user.dir").replace('\\', '/');
private static final String CODE_LOCATION = "file:" + USER_DIR + "/";
private static final MarshalledObject DATA = null;
private static ActivationDesc ACTIVATION_DESC = null;
public NotActivatableServerImpl() throws RemoteException {}
public void ping() throws RemoteException {}
public void exit() throws RemoteException {
System.exit(0);
}
private static void setup() {
try {
NotActivatableInterface rsi; // Remote server interface
System.setSecurityManager(new RMISecurityManager());
rsi = (NotActivatableInterface) Activatable.register(ACTIVATION_DESC);
System.out.println("Got stub for " + SERVER_OBJECT + " implementation");
Naming.rebind(SERVER_OBJECT, rsi);
System.out.println("Exported " + SERVER_OBJECT + " implementation");
} catch (Exception e) {
System.err.println("Exception: " + e);
e.printStackTrace();
}
}
public static void main(String[] args) {
try {
Properties props = new Properties();
props.setProperty("java.security.policy", POLICY_FILE);
ActivationGroupDesc agd = new ActivationGroupDesc(props, null);
ActivationGroupID agid = ActivationGroup.getSystem().registerGroup(agd);
ACTIVATION_DESC = new ActivationDesc(agid, CLASS_NAME, CODE_LOCATION, DATA, false);
} catch (Exception e) {
System.err.println("Exception: " + e);
e.printStackTrace();
}
setup();
}
}