Examples of org.apache.tuscany.sca.extension.helper.BindingActivator

org.apache.tuscany.sca.extension.helper.BindingActivator

A BindingActivator adds an SCA binding type to the Tuscany runtime. The SCDL XML used for the binding is derived from the name of the class returned from the getBindingClass method - the package name and any trailing "Binding" string is removed, leading upper case characters are converted to lowercase, and the suffix "binding." is added. For example if getBindingClass returns a class named "mypkg.FooBinding" then the SCDL for the binding will be . Attributes of the SCDL are based on the getters/setters of the binding class. So if FooBinding had getBar/setBar then there would be an attribute name 'bar', for example, . BindingActivator implementations may use constructor arguments to have Tuscany ExtensionPointRegistry objects passed in on their constructor. For example: public class MyBindingActivator implements BindingActivator { ServletHost servletHost; public MyBindingActivator(ServletHost servletHost) { this.servletHost = servletHost; } ... } BindingActivator implementations are discovered by the Tuscany runtime using the J2SE jar file extensions for service provider discovery. All that means is packaging the new binding type in a jar which contains a file META-INF/services/org.apache.tuscany.sca.extension.helper.BindingActivator and that file lists the BindingActivator implementation class name. @version $Rev: 656232 $ $Date: 2008-05-14 03:42:21 -0700 (Wed, 14 May 2008) $

            if (b instanceof PojoBinding) {
                realBinding = ((PojoBinding)b).getUserBinding();
            } else {
                realBinding = b;
            }
            final BindingActivator bindingActivator = bindingActivatorMap.get(realBinding.getClass());
            return new ReferenceBindingProvider() {
                List<InvokerProxy> invokers = new ArrayList<InvokerProxy>();
                private InvokerFactory factory;


                public Invoker createInvoker(Operation operation) {
                    InvokerProxy invoker = new InvokerProxy(factory, operation);
                    invokers.add(invoker);
                    return invoker;
                }
                
                public boolean supportsOneWayInvocation() {
                    return false;
                }


                public InterfaceContract getBindingInterfaceContract() {
                    return null;
                }


                public void start() {
                    if (b instanceof PojoBinding) {
                        factory = bindingActivator.createInvokerFactory(rc, rcr, b, ((PojoBinding)b).getUserBinding());
                    } else {
                        factory = bindingActivator.createInvokerFactory(rc, rcr, b, b);
                    }
                    if (factory instanceof ComponentLifecycle) {
                        ((ComponentLifecycle)factory).start();
                    }
//                    for (InvokerProxy invoker : invokers) {

            if (b instanceof PojoBinding) {
                realBinding = ((PojoBinding)b).getUserBinding();
            } else {
                realBinding = b;
            }
            final BindingActivator bindingActivator = bindingActivatorMap.get(realBinding.getClass());
            return new ServiceBindingProvider() {
                ComponentLifecycle listener = bindingActivator.createService(rc, rcs, b, realBinding);


                public InterfaceContract getBindingInterfaceContract() {
                    return null;
                }

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