Examples with OutputEmitter org.talend.sdk.component.api.processor.OutputEmitter used on opensource projects

Example 1 with OutputEmitter

use of org.talend.sdk.component.api.processor.OutputEmitter in project component-runtime by Talend.

the class ModelVisitor method validateProcessor.

private void validateProcessor(final Class<?> input) {
    final List<Method> producers = Stream.of(input.getMethods()).filter(m -> m.isAnnotationPresent(ElementListener.class)).collect(toList());
    if (producers.size() != 1) {
        throw new IllegalArgumentException(input + " must have a single @ElementListener method");
    }
    if (Stream.of(producers.get(0).getParameters()).filter(p -> {
        if (p.isAnnotationPresent(Output.class)) {
            if (!ParameterizedType.class.isInstance(p.getParameterizedType())) {
                throw new IllegalArgumentException("@Output parameter must be of type OutputEmitter");
            }
            final ParameterizedType pt = ParameterizedType.class.cast(p.getParameterizedType());
            if (OutputEmitter.class != pt.getRawType()) {
                throw new IllegalArgumentException("@Output parameter must be of type OutputEmitter");
            }
            return false;
        }
        return true;
    }).count() < 1) {
        throw new IllegalArgumentException(input + " doesn't have the input parameter on its producer method");
    }
    Stream.of(input.getMethods()).filter(m -> m.isAnnotationPresent(BeforeGroup.class) || m.isAnnotationPresent(AfterGroup.class)).forEach(m -> {
        if (m.getParameterCount() > 0) {
            throw new IllegalArgumentException(m + " must not have any parameter");
        }
    });
}