Class ChannelFactory

code/src/java/pcgen/output/factory/ChannelFactory.java:36–87

An ChannelFactory is a ModelFactory that can wrap the variable in a CodeControl and produce an ChennelModel for a given CharID

 * produce an ChennelModel for a given CharID
 */
public class ChannelFactory implements ModelFactory
{
	/**
	 * The global ObjectWrapperFacet used to wrap the current value of a
	 * variable
	 */
	private final ObjectWrapperFacet wrapperFacet = FacetLibrary.getFacet(ObjectWrapperFacet.class);

	/**
	 * The CControl for which this ChannelFactory can produce a ModelFactory.
	 */
	private final CControl control;

	/**
	 * Constructs a new ChannelFactory for the given CodeControl.
	 * 
	 * @param control
	 *            The CControl for which this ChannelFactory will produce ModelFactory
	 *            objects
	 */
	public ChannelFactory(CControl control)
	{
		this.control = control;
	}

	@Override
	public TemplateModel generate(CharID id)
	{
		Optional<String> feature = control.getControllingFeature();
		Object value;
		if (feature.isPresent() && ControlUtilities.isFeatureEnabled(Globals.getContext(), feature.get()))
		{
			String channelName = ControlUtilities.getControlToken(Globals.getContext(), control);
			value = ChannelUtilities.readGlobalChannel(id, channelName);
		}
		else
		{
			value = "";
		}
		try
		{
			return wrapperFacet.wrap(id, value);
		}
		catch (TemplateModelException e)
		{
			throw new IllegalArgumentException(
				"Unable to generate wrapper for Channel: " + control.getName()
					+ " value type: " + value.getClass().getCanonicalName(),
				e);
		}
	}
}