CdiClientInjectionManager.java

/*
 * Copyright (c) 2021, 2024 Oracle and/or its affiliates. All rights reserved.
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Public License v. 2.0, which is available at
 * http://www.eclipse.org/legal/epl-2.0.
 *
 * This Source Code may also be made available under the following Secondary
 * Licenses when the conditions for such availability set forth in the
 * Eclipse Public License v. 2.0 are satisfied: GNU General Public License,
 * version 2 with the GNU Classpath Exception, which is available at
 * https://www.gnu.org/software/classpath/license.html.
 *
 * SPDX-License-Identifier: EPL-2.0 OR GPL-2.0 WITH Classpath-exception-2.0
 */

package org.glassfish.jersey.inject.weld.internal.managed;

import jakarta.enterprise.context.spi.CreationalContext;
import jakarta.enterprise.inject.spi.Bean;
import jakarta.enterprise.inject.spi.BeanManager;
import jakarta.enterprise.inject.spi.InjectionTarget;
import jakarta.ws.rs.RuntimeType;

import org.glassfish.jersey.inject.weld.internal.bean.ClassBean;
import org.glassfish.jersey.inject.weld.internal.bean.JerseyBean;
import org.glassfish.jersey.inject.weld.internal.bean.SupplierClassBean;
import org.glassfish.jersey.inject.weld.internal.inject.InitializableBinding;
import org.glassfish.jersey.inject.weld.internal.inject.InitializableInstanceBinding;
import org.glassfish.jersey.inject.weld.internal.inject.InitializableSupplierInstanceBinding;
import org.glassfish.jersey.inject.weld.internal.inject.MatchableBinding;
import org.glassfish.jersey.inject.weld.internal.injector.JerseyClientCreationalContext;
import org.glassfish.jersey.inject.weld.internal.injector.JerseyInjectionTarget;
import org.glassfish.jersey.innate.inject.InternalBinding;
import org.glassfish.jersey.innate.inject.Bindings;
import org.glassfish.jersey.innate.inject.ClassBinding;
import org.glassfish.jersey.innate.inject.InstanceBinding;
import org.glassfish.jersey.innate.inject.SupplierClassBinding;
import org.glassfish.jersey.innate.inject.SupplierInstanceBinding;
import org.glassfish.jersey.internal.inject.Binding;
import org.glassfish.jersey.internal.inject.InjectionManager;
import org.jboss.weld.contexts.CreationalContextImpl;

import java.util.IdentityHashMap;
import java.util.Map;

/**
 * Each Client Runtime has a unique CdiClientInjectionManager, which passes proper {@link InternalBinding} to the Weld.
 */
public final class CdiClientInjectionManager extends CdiInjectionManager {

    private Map<InitializableInstanceBinding, InitializableInstanceBinding> clientInstanceBindings = new IdentityHashMap<>();
    private Map<InitializableSupplierInstanceBinding, InitializableSupplierInstanceBinding> clientSupplierInstanceBindings
            = new IdentityHashMap<>();
    private Map<SupplierClassBinding, SupplierClassBinding> clientSupplierClassBinding = new IdentityHashMap<>();
    private Map<ClassBinding, ClassBinding> clientClassBinding = new IdentityHashMap<>();

    CdiClientInjectionManager(BeanManager beanManager, BinderRegisterExtension.MergedBindings bindings) {
        super(beanManager, bindings, RuntimeType.CLIENT);
    }

    @Override
    public void register(Binding binding) {
        if (InstanceBinding.class.isInstance(binding)) {
//            final Collection<Binding> preBindings = getBindings().getBindings();
//            MatchableBinding.Matching<InitializableInstanceBinding> matching = MatchableBinding.Matching.noneMatching();
//            for (Binding preBinding : preBindings) {
//                if (InitializableInstanceBinding.class.isInstance(preBinding)) {
//                    matching = matching.better(((InitializableInstanceBinding) preBinding).matches((InstanceBinding) binding));
//                    if (matching.isBest()) {
//                        break;
//                    }
//                }
//            }
            MatchableBinding.Matching<InitializableInstanceBinding> matching;
//            MatchableBinding.Matching<InitializableInstanceBinding> matching =
//                    findPrebinding(InitializableInstanceBinding.class, binding /*, RuntimeType.CLIENT*/);
//            if (matching.matches()) {
//                matching.getBinding().init(((InstanceBinding) binding).getService());
//                return;
//            }
            matching = findPrebinding(InitializableInstanceBinding.class, binding/*, RuntimeType.SERVER*/);
            if (matching.matches()) {
                final InitializableInstanceBinding clone = matching.getBinding().clone();
                clone.init(((InstanceBinding) binding).getService());
                clientInstanceBindings.put(matching.getBinding(), clone);
            } else {
                if (!userBindings.init((InstanceBinding<?>) binding)) {
                    throw new IllegalStateException("Not initialized " + ((InstanceBinding<?>) binding).getService());
                }
            }
        } else if (SupplierInstanceBinding.class.isInstance(binding)) {
//            final Collection<Binding> preBindings = getBindings().getBindings();
//            MatchableBinding.Matching<InitializableSupplierInstanceBinding> matching = MatchableBinding.Matching.noneMatching();
//            for (Binding preBinding : preBindings) {
//                if (InitializableSupplierInstanceBinding.class.isInstance(preBinding)) {
//                    matching = matching.better(((InitializableSupplierInstanceBinding) preBinding).matchesContracts(binding));
//                    if (matching.isBest()) {
//                        break;
//                    }
//                }
//            }
            MatchableBinding.Matching<InitializableSupplierInstanceBinding> matching =
                    findPrebinding(InitializableSupplierInstanceBinding.class, binding);
            if (matching.matches()) {
                final InitializableSupplierInstanceBinding clone = matching.getBinding().clone();
                clone.init(((SupplierInstanceBinding) binding).getSupplier());
                clientSupplierInstanceBindings.put(matching.getBinding(), clone);
            } else {
                throw new IllegalStateException("Not initialized " + ((SupplierInstanceBinding<?>) binding).getSupplier());
            }
//        } else if (SupplierClassBinding.class.isInstance(binding)) {
//            final Collection<Binding> preBindings = getBindings().getBindings();
//            BindingMatching.Matching<SupplierClassBinding> matching = BindingMatching.Matching.noneMatching();
//            for (Binding preBinding : preBindings) {
//                if (SupplierClassBinding.class.isInstance(preBinding)) {
//                    matching = matching.better(BindingMatching.matches(preBinding, binding));
//                    if (matching.isBest()) {
//                        break;
//                    }
//                }
//            }
//            if (matching.matches()) {
//                final SupplierClassBinding clone = BindingCloner.clone((SupplierClassBinding) binding);
//                clientSupplierClassBinding.put(matching.getBinding(), clone);
//            } else {
//                throw new IllegalStateException("Not initialized " + ((SupplierInstanceBinding<?>) binding).getSupplier());
//            }
        } else if (ClassBinding.class.isInstance(binding)) {
            ClassBinding prebinding = findClassBinding(binding.getImplementationType());
            if (prebinding == null) {
                //User registered provider
                if (!userBindings.init((ClassBinding<?>) binding)) {
                    throw new IllegalStateException("Unexpected");
                }
                clientClassBinding.put(prebinding, (ClassBinding) binding);
            }
        }
    }

    public InitializableInstanceBinding getInjectionManagerBinding(InitializableInstanceBinding binding) {
        InitializableInstanceBinding clientBinding = clientInstanceBindings.get(binding);
        return clientBinding != null ? clientBinding : binding;
    }

    public InitializableSupplierInstanceBinding getInjectionManagerBinding(InitializableSupplierInstanceBinding binding) {
        InitializableSupplierInstanceBinding clientBinding = clientSupplierInstanceBindings.get(binding);
        return clientBinding != null ? clientBinding : binding;
    }

    public SupplierClassBinding getInjectionManagerBinding(SupplierClassBinding binding) {
        SupplierClassBinding clientBinding = clientSupplierClassBinding.get(binding);
        return clientBinding != null ? clientBinding : binding;
    }

    public ClassBinding getInjectionManagerBinding(ClassBinding binding) {
        ClassBinding clientBinding = clientClassBinding.get(binding);
        return clientBinding != null ? clientBinding : binding;
    }

    @Override
    protected void lockContext() {
        ContextSafe.lockContext(this);
    }

    @Override
    protected void unlockContext() {
        ContextSafe.unlock(this);
    }

    @Override
    public void shutdown() {
        clientInstanceBindings.clear();
    }

    @Override
    protected <T> CreationalContext<T> createCreationalContext(Bean<T> bean) {
        final CreationalContext<T> ctx = new JerseyClientCreationalContext<T>(
                (CreationalContextImpl<T>) super.createCreationalContext(bean)).setInjectionManager(this);
        return ctx;
    }

    @Override
    public void completeRegistration() throws IllegalStateException {
        register(Bindings.service(this).to(InjectionManager.class));
    }

    @Override
    protected boolean isRuntimeTypeBean(Bean<?> bean) {
        return !JerseyBean.class.isInstance(bean)
                || ((JerseyBean) bean).getRutimeType() == RuntimeType.CLIENT
                || clientInstanceBindings.containsKey(((JerseyBean<?>) bean).getBinding())
                || clientSupplierInstanceBindings.containsKey(((JerseyBean<?>) bean).getBinding())
                || isTwoFoldInstantiator((JerseyBean) bean);
    }

    private static boolean isTwoFoldInstantiator(JerseyBean bean) {
        InjectionTarget injectionTarget = null;
        if (ClassBean.class.isInstance(bean)) {
            injectionTarget = ((ClassBean) bean).getInjectionTarget();
        } else if (SupplierClassBean.class.isInstance(bean)) {
            injectionTarget = ((SupplierClassBean) bean).getInjectionTarget();
        }

        if (injectionTarget != null) {
            if (JerseyInjectionTarget.class.isInstance(injectionTarget)) {
                JerseyInjectionTarget jerseyInjectionTarget = (JerseyInjectionTarget) injectionTarget;
                return jerseyInjectionTarget.getTwofoldInstantiator().hasOptionalConstructorInjectionPoint();
            }
        }
        return false;
    }

    private boolean isInit(JerseyBean bean) {
        if (InitializableBinding.class.isInstance(bean.getBinding())) {
            return ((InitializableBinding) bean.getBinding()).isInit();
        } else {
            return true;
        }
    }

    @Override
    public RuntimeType getRuntimeType() {
        return RuntimeType.CLIENT;
    }
}