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package org.glassfish.jersey.server;

import java.util.function.Consumer;
import java.util.function.Function;

import javax.ws.rs.container.ResourceContext;

import org.glassfish.jersey.internal.BootstrapBag;
import org.glassfish.jersey.internal.BootstrapConfigurator;
import org.glassfish.jersey.internal.inject.Binding;
import org.glassfish.jersey.internal.inject.Bindings;
import org.glassfish.jersey.internal.inject.InjectionManager;
import org.glassfish.jersey.internal.inject.Injections;
import org.glassfish.jersey.internal.inject.InstanceBinding;
import org.glassfish.jersey.server.internal.JerseyResourceContext;

/**
 * Configurator which initializes and register {@link JerseyResourceContext} instance into {@link InjectionManager} and
 * {@link BootstrapBag}.
 *
 * @author Petr Bouda
 */
class JerseyResourceContextConfigurator implements BootstrapConfigurator {

    @Override
    public void init(InjectionManager injectionManager, BootstrapBag bootstrapBag) {
        ServerBootstrapBag serverBag = (ServerBootstrapBag) bootstrapBag;
        Consumer registerBinding = injectionManager::register;
        Function, ?> getOrCreateInstance = clazz -> Injections.getOrCreate(injectionManager, clazz);
        Consumer injectInstance = injectionManager::inject;

        // Initialize and register Resource Context
        JerseyResourceContext resourceContext = new JerseyResourceContext(getOrCreateInstance, injectInstance, registerBinding);
        InstanceBinding resourceContextBinding =
                Bindings.service(resourceContext)
                        .to(ResourceContext.class)
                        .to(ExtendedResourceContext.class);
        injectionManager.register(resourceContextBinding);
        serverBag.setResourceContext(resourceContext);
    }

    @Override
    public void postInit(InjectionManager injectionManager, BootstrapBag bootstrapBag) {
    }
}