Examples with MethodHandler org.glassfish.jersey.server.model.MethodHandler used on opensource projects

Example 1 with MethodHandler

use of org.glassfish.jersey.server.model.MethodHandler in project jersey by jersey.

the class NaiveResourceMappingContext method buildMappings.

private void buildMappings() {
    if (mappings != null) {
        return;
    }
    mappings = new HashMap<>();
    erc.getResourceModel().accept(new ResourceModelVisitor() {

        Deque<PathPattern> stack = new LinkedList<>();

        private void processComponents(final ResourceModelComponent component) {
            final List<? extends ResourceModelComponent> components = component.getComponents();
            if (components != null) {
                for (final ResourceModelComponent rc : components) {
                    rc.accept(this);
                }
            }
        }

        @Override
        public void visitInvocable(final Invocable invocable) {
            processComponents(invocable);
        }

        @Override
        public void visitRuntimeResource(final RuntimeResource runtimeResource) {
            processComponents(runtimeResource);
        }

        @Override
        public void visitResourceModel(final ResourceModel resourceModel) {
            processComponents(resourceModel);
        }

        @Override
        public void visitResourceHandlerConstructor(final HandlerConstructor handlerConstructor) {
            processComponents(handlerConstructor);
        }

        @Override
        public void visitMethodHandler(final MethodHandler methodHandler) {
            processComponents(methodHandler);
        }

        @Override
        public void visitChildResource(final Resource resource) {
            visitResourceIntl(resource, false);
        }

        @Override
        public void visitResource(final Resource resource) {
            visitResourceIntl(resource, true);
        }

        private void visitResourceIntl(final Resource resource, final boolean isRoot) {
            try {
                stack.addLast(resource.getPathPattern());
                processComponents(resource);
                if (isRoot) {
                    Class likelyToBeRoot = null;
                    for (final Class next : resource.getHandlerClasses()) {
                        if (!(Inflector.class.isAssignableFrom(next))) {
                            likelyToBeRoot = next;
                        }
                    }
                    if (likelyToBeRoot != null) {
                        mappings.put(likelyToBeRoot, getMapping(getTemplate()));
                    }
                }
            } finally {
                stack.removeLast();
            }
        }

        @Override
        public void visitResourceMethod(final ResourceMethod resourceMethod) {
            if (resourceMethod.isExtended()) {
                return;
            }
            if (ResourceMethod.JaxrsType.SUB_RESOURCE_LOCATOR.equals(resourceMethod.getType())) {
                if (resourceMethod.getInvocable() != null) {
                    final Invocable i = resourceMethod.getInvocable();
                    final Type type = i.getResponseType();
                    final StringBuilder template = getTemplate();
                    mappings.put((Class) type, getMapping(template));
                    // Process sub resources ?
                    Resource.Builder builder = Resource.builder(i.getRawResponseType());
                    if (builder == null) {
                        // for example in the case the return type of the sub resource locator is Object
                        builder = Resource.builder().path(resourceMethod.getParent().getPath());
                    }
                    final Resource subResource = builder.build();
                    visitChildResource(subResource);
                }
            }
            processComponents(resourceMethod);
        }

        private StringBuilder getTemplate() {
            final StringBuilder template = new StringBuilder();
            for (final PathPattern pp : stack) {
                final String ppTemplate = pp.getTemplate().getTemplate();
                final int tlength = template.length();
                if (tlength > 0) {
                    if (template.charAt(tlength - 1) == '/') {
                        if (ppTemplate.startsWith("/")) {
                            template.append(ppTemplate, 1, ppTemplate.length());
                        } else {
                            template.append(ppTemplate);
                        }
                    } else {
                        if (ppTemplate.startsWith("/")) {
                            template.append(ppTemplate);
                        } else {
                            template.append("/");
                            template.append(ppTemplate);
                        }
                    }
                } else {
                    template.append(ppTemplate);
                }
            }
            return template;
        }
    });
}