Examples of org.restlet.resource.ServerResource

org.restlet.resource.ServerResource
Base class for server-side resources. It acts as a wrapper to a given call, including the incoming {@link Request} and the outgoing {@link Response}.

It's life cycle is managed by a {@link Finder} created either explicitly ormore likely implicitly when your {@link ServerResource} subclass is attachedto a {@link Filter} or a {@link Router} via the {@link Filter#setNext(Class)}or {@link Router#attach(String,Class)} methods for example. Afterinstantiation using the default constructor, the final {@link #init(Context,Request,Response)} method is invoked, setting thecontext, request and response. You can intercept this by overriding the {@link #doInit()} method. Then, if the response status is still a success,the {@link #handle()} method is invoked to actually handle the call. Finally,the final {@link #release()} method is invoked to do the necessary clean-up,which you can intercept by overriding the {@link #doRelease()} method. Duringthis life cycle, if any exception is caught, then the {@link #doCatch(Throwable)} method is invoked.

Note that when an annotated method manually sets the response entity, if this entity is available then it will be preserved and the result of the annotated method ignored.

In addition, there are two ways to declare representation variants, one is based on the {@link #getVariants()} method and another one on the annotatedmethods. Both approaches can't however be used at the same time for now.

Concurrency note: contrary to the {@link org.restlet.Uniform} class and itsmain {@link Restlet} subclass where a single instance can handle severalcalls concurrently, one instance of {@link ServerResource} is created foreach call handled and accessed by only one thread at a time. @author Jerome Louvel




    @Override
    public Object invoke(MethodInvocation invocation) throws Throwable
    {
        ServerResource resource = (ServerResource) invocation.getThis();
        securityCheck.check(resource.getRequest(), resource.getResponse());
        return invocation.proceed();
    }

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     * lookup method in Spring.
     * 
     * @return The created resource or null.
     */
    public ServerResource create() {
        ServerResource result = null;


        if (getTargetClass() != null) {
            try {
                // Invoke the default constructor
                result = (ServerResource) getTargetClass().newInstance();

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        registerApplicationContextBean(BEAN_NAME, SomeResource.class);
        registerBeanFactoryBean(BEAN_NAME, AnotherResource.class);


        this.finder.setApplicationContext(applicationContext);


        ServerResource actual = this.finder.create();


        assertNotNull("Resource not found", actual);
        assertTrue("Resource not from application context: "
                + actual.getClass().getName(), actual instanceof SomeResource);
    }

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    public void testReturnsResourceBeanWhenExists() throws Exception {
        registerBeanFactoryBean(BEAN_NAME, SomeResource.class);


        this.finder.setBeanFactory(beanFactory);


        final ServerResource actual = this.finder.create();


        assertNotNull("Resource not found", actual);
        assertTrue("Resource not the correct type",
                actual instanceof SomeResource);
    }

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        registerBeanFactoryBean(BEAN_NAME, SomeServerResource.class,
                createServerResourcePropertyValues());


        this.finder.setBeanFactory(beanFactory);


        final ServerResource actual = this.finder.create(
                SomeServerResource.class, null, null);


        assertNotNull("Resource not found", actual);
        assertTrue("Resource not the correct type",
                actual instanceof SomeServerResource);

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        registerBeanFactoryBean(BEAN_NAME, SomeServerResource.class,
                createServerResourcePropertyValues());


        this.finder.setBeanFactory(beanFactory);


        final ServerResource actual = this.finder.create();


        assertNotNull("Resource not found", actual);
        assertTrue("Resource not the correct type",
                actual instanceof SomeServerResource);
    }

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    public void testUsesApplicationContextIfPresent() throws Exception {
        registerApplicationContextBean(BEAN_NAME, SomeResource.class);


        this.finder.setApplicationContext(applicationContext);


        ServerResource actual = this.finder.create();


        assertNotNull("Resource not found", actual);
        assertTrue("Resource not the correct type",
                actual instanceof SomeResource);
    }

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        log.info("Looking for a wadl resource");
        for (Restlet next = getNext(); next != null;) {
            if (next instanceof Finder) {
                Finder f = (Finder) next;
                ServerResource sr = f.find(request, response);
                if (sr instanceof WadlServerResource) {
                    wadl = (WadlServerResource) sr;
                }
                break;
                // next = ((Filter)next).getNext();

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        log.info("Looking for a scoped resource");
        for (Restlet next = getNext(); next != null;) {
            if (next instanceof Finder) {
                Finder f = (Finder) next;
                ServerResource sr = f.find(request, response);
                if (sr instanceof DiscoverableResource) {
                    scoped = (DiscoverableResource) sr;
                    List<AnnotationInfo> ai = AnnotationUtils.getAnnotations(sr
                            .getClass());
                    for (AnnotationInfo i : ai) {
                        methods.add(i.getRestletMethod());
                    }
                    Set<Method> am = sr.getAllowedMethods();
                    log.info("AllowedMethods size = " + am);
                }
                break;
                // next = ((Filter)next).getNext();
            } else if (next instanceof Filter) {

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        if (finder instanceof Directory) {
            resource = finder;
        } else {
            // The handler instance targeted by this finder.
            ServerResource sr = finder.find(request, response);


            if (sr != null) {
                sr.init(getContext(), request, response);
                sr.updateAllowedMethods();
                resource = sr;
            }
        }


        if (resource != null) {

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