@Override
public Construct execs(Target t, Environment env, Script parent, ParseTree... nodes) {
if (nodes.length < 5) {
throw new ConfigRuntimeException(
"bind accepts 5 or more parameters", ExceptionType.InsufficientArgumentsException, t);
}
Construct name = parent.seval(nodes[0], env);
Construct options = parent.seval(nodes[1], env);
Construct prefilter = parent.seval(nodes[2], env);
Construct event_obj = parent.eval(nodes[3], env);
IVariableList custom_params = new IVariableList();
for (int a = 0; a < nodes.length - 5; a++) {
Construct var = parent.eval(nodes[4 + a], env);
if (!(var instanceof IVariable)) {
throw new ConfigRuntimeException(
"The custom parameters must be ivariables", ExceptionType.CastException, t);
}
IVariable cur = (IVariable) var;
custom_params.set(
env.getEnv(GlobalEnv.class).GetVarList().get(cur.getName(), cur.getTarget()));
}
Environment newEnv = env;
try {
newEnv = env.clone();
} catch (Exception e) {
}
newEnv.getEnv(GlobalEnv.class).SetVarList(custom_params);
ParseTree tree = nodes[nodes.length - 1];
// Check to see if our arguments are correct
if (!(options instanceof CNull || options instanceof CArray)) {
throw new ConfigRuntimeException(
"The options must be an array or null", ExceptionType.CastException, t);
}
if (!(prefilter instanceof CNull || prefilter instanceof CArray)) {
throw new ConfigRuntimeException(
"The prefilters must be an array or null", ExceptionType.CastException, t);
}
if (!(event_obj instanceof IVariable)) {
throw new ConfigRuntimeException(
"The event object must be an IVariable", ExceptionType.CastException, t);
}
CString id;
if (options instanceof CNull) {
options = null;
}
if (prefilter instanceof CNull) {
prefilter = null;
}
Event event;
try {
BoundEvent be =
new BoundEvent(
name.val(),
(CArray) options,
(CArray) prefilter,
((IVariable) event_obj).getName(),
newEnv,
tree,
t);
EventUtils.RegisterEvent(be);
id = new CString(be.getId(), t);
event = EventList.getEvent(be.getEventName());
} catch (EventException ex) {
throw new ConfigRuntimeException(ex.getMessage(), ExceptionType.BindException, t);
}
// Set up our bind counter, but only if the event is supposed to be added to the counter
if (event.addCounter()) {
synchronized (bindCounter) {
if (bindCounter.get() == 0) {
env.getEnv(GlobalEnv.class).GetDaemonManager().activateThread(null);
StaticLayer.GetConvertor()
.addShutdownHook(
new Runnable() {
@Override
public void run() {
synchronized (bindCounter) {
bindCounter.set(0);
}
}
});
}
bindCounter.incrementAndGet();
}
}
return id;
}
