/**
* This method gets called when a property we're interested in is about to change. In case we
* don't like the new value we throw a PropertyVetoException to prevent the actual change from
* happening.
*
* @param evt a <tt>PropertyChangeEvent</tt> object describing the event source and the property
* that will change.
* @exception PropertyVetoException if we don't want the change to happen.
*/
public void vetoableChange(PropertyChangeEvent evt) throws PropertyVetoException {
if (evt.getPropertyName().equals(PROP_STUN_SERVER_ADDRESS)) {
// make sure that we have a valid fqdn or ip address.
// null or empty port is ok since it implies turning STUN off.
if (evt.getNewValue() == null) return;
String host = evt.getNewValue().toString();
if (host.trim().length() == 0) return;
boolean ipv6Expected = false;
if (host.charAt(0) == '[') {
// This is supposed to be an IPv6 litteral
if (host.length() > 2 && host.charAt(host.length() - 1) == ']') {
host = host.substring(1, host.length() - 1);
ipv6Expected = true;
} else {
// This was supposed to be a IPv6 address, but it's not!
throw new PropertyVetoException("Invalid address string" + host, evt);
}
}
for (int i = 0; i < host.length(); i++) {
char c = host.charAt(i);
if (Character.isLetterOrDigit(c)) continue;
if ((c != '.' && c != ':') || (c == '.' && ipv6Expected) || (c == ':' && !ipv6Expected))
throw new PropertyVetoException(host + " is not a valid address nor host name", evt);
}
} // is prop_stun_server_address
else if (evt.getPropertyName().equals(PROP_STUN_SERVER_PORT)) {
// null or empty port is ok since it implies turning STUN off.
if (evt.getNewValue() == null) return;
String port = evt.getNewValue().toString();
if (port.trim().length() == 0) return;
try {
Integer.valueOf(evt.getNewValue().toString());
} catch (NumberFormatException ex) {
throw new PropertyVetoException(port + " is not a valid port! " + ex.getMessage(), evt);
}
}
}
public VirtualMachine attach(Map arguments)
throws IOException, IllegalConnectorArgumentsException {
int pid = 0;
try {
pid = Integer.parseInt(argument(ARG_PID, arguments).value());
} catch (NumberFormatException nfe) {
throw (IllegalConnectorArgumentsException)
new IllegalConnectorArgumentsException(nfe.getMessage(), ARG_PID).initCause(nfe);
}
checkProcessAttach(pid);
VirtualMachine myVM = null;
try {
try {
Class vmImplClass = loadVirtualMachineImplClass();
myVM = createVirtualMachine(vmImplClass, pid);
} catch (InvocationTargetException ite) {
Class vmImplClass = handleVMVersionMismatch(ite);
if (vmImplClass != null) {
return createVirtualMachine(vmImplClass, pid);
} else {
throw ite;
}
}
} catch (Exception ee) {
if (DEBUG) {
System.out.println("VirtualMachineImpl() got an exception:");
ee.printStackTrace();
System.out.println("pid = " + pid);
}
throw (IOException) new IOException().initCause(ee);
}
setVMDisposeObserver(myVM);
return myVM;
}