public boolean add(IBasicScope scope) {
// log.trace("add - Hold counts - read: {} write: {} queued: {}",
// internalLock.getReadHoldCount(), internalLock.getWriteHoldCount(),
// internalLock.hasQueuedThreads());
boolean added = false;
// check #1
if (!containsKey(scope)) {
log.debug("Adding child scope: {} to {}", (((IBasicScope) scope).getName()), this);
if (hasHandler()) {
// get the handler for the scope to which we are adding this new scope
IScopeHandler hdlr = getHandler();
// add the scope to the handler
if (!hdlr.addChildScope(scope)) {
log.warn("Failed to add child scope: {} to {}", scope, this);
return false;
}
} else {
log.debug("No handler found for {}", this);
}
try {
// check #2 for entry
if (!containsKey(scope)) {
// add the entry
// expected return from put is null; indicating this scope didn't already exist
added = (super.put(scope, Boolean.TRUE) == null);
if (added) {
subscopeStats.increment();
} else {
log.debug("Subscope was not added");
}
} else {
log.debug("Subscope already exists");
}
} catch (Exception e) {
log.warn("Exception on add", e);
}
if (added && scope instanceof Scope) {
// cast it
Scope scp = (Scope) scope;
// start the scope
if (scp.start()) {
log.debug("Child scope started");
} else {
log.debug("Failed to start child scope: {} in {}", scope, this);
}
}
}
return added;
}
/**
* Initialization actions, start if autostart is set to
*
* <pre>
* true
* </pre>
*/
public void init() {
log.debug("Init scope: {} parent: {}", name, parent);
if (hasParent()) {
if (!parent.hasChildScope(name)) {
if (parent.addChildScope(this)) {
log.debug("Scope added to parent");
} else {
log.warn("Scope not added to parent");
// throw new ScopeException("Scope not added to parent");
return;
}
} else {
throw new ScopeException("Scope already exists in parent");
}
} else {
log.debug("Scope has no parent");
}
if (autoStart) {
start();
}
}