public Component activateComponent()

in core/servicemix-core/src/main/java/org/apache/servicemix/jbi/container/JBIContainer.java [1100:1150]
47 lines of code
13 McCabe index (conditional complexity)

    public Component activateComponent(ActivationSpec activationSpec) throws JBIException {
        if (activationSpec.getId() == null) {
            if (activationSpec.getComponentName() == null) {
                // lets generate one
                activationSpec.setId(createComponentID());
            } else {
                activationSpec.setId(activationSpec.getComponentName());
            }
        }
        String id = activationSpec.getId();
        if (id == null) {
            throw new IllegalArgumentException("A Registration must have an ID");
        }
        if (activationSpec.getEndpoint() == null && activationSpec.getService() != null) {
            // lets default to the ID
            activationSpec.setEndpoint(id);
        }
        if (activationSpec.getComponentName() == null) {
            activationSpec.setComponentName(id);
        }
        Object bean = activationSpec.getComponent();
        if (bean == null) {
            throw new IllegalArgumentException("A Registration must have a component associated with it");
        }
        if (bean instanceof Component) {
            Component component = (Component) bean;
            if (component instanceof ComponentSupport) {
                defaultComponentServiceAndEndpoint((ComponentSupport) component, activationSpec);
            }
            activateComponent(component, activationSpec);
            return component;
        } else if (bean instanceof ComponentLifeCycle) {
            // lets support just plain lifecycle pojos
            ComponentLifeCycle lifeCycle = (ComponentLifeCycle) bean;
            if (bean instanceof PojoSupport) {
                defaultComponentServiceAndEndpoint((PojoSupport) bean, activationSpec);
            }
            Component adaptor = createComponentAdaptor(lifeCycle, activationSpec);
            activateComponent(adaptor, activationSpec);
            return adaptor;
        } else if (bean instanceof MessageExchangeListener) {
            // lets support just plain listener pojos
            MessageExchangeListener listener = (MessageExchangeListener) bean;
            Component adaptor = createComponentAdaptor(listener, activationSpec);
            activateComponent(adaptor, activationSpec);
            return adaptor;
        } else {
            throw new IllegalArgumentException("Component name: " + id
                    + " is bound to an object which is not a JBI component, it is of type: " + bean.getClass().getName());
        }
    }