/**
* Create the channel instance and sets its name.
*
* <p>If the channel class matches to constructor parameters of the default channel (ChannelImpl)
* that constructor is used, else the empty constructor is invoked.
*
* @param channelClass Channel implementation class to instanciate.
* @param name Name of the channel.
* @return a new Channel instance.
* @throws IllegalStateException if a channel with name already created or channelClass could not
* be instancieated.
*/
protected Channel getNewChannel(Class<? extends Channel> channelClass, String name)
throws IllegalStateException {
try {
channelRegister.getChannel(name);
throw new IllegalStateException("Channel with name " + name + " has already been created.");
} catch (NoSuchChannelException nsce) {
try {
if (ChannelImpl.class.isAssignableFrom(channelClass)) {
Constructor<? extends Channel> cons =
channelClass.getConstructor(
String.class,
ChannelRegister.class,
EventRegister.class,
EventMethodInvoker.class,
BeanResolver.class);
return cons.newInstance(
name, channelRegister, eventRegister, eventMethodInvoker, beanResolver);
} else {
Channel channel = channelClass.newInstance();
channel.setName(name);
return channel;
}
} catch (Exception e) {
throw new IllegalStateException(
"Could not find or instanciate channel class " + channelClass, e);
}
}
}
