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A bundle project producing JAX-RS RI bundles. The primary artifact is an "all-in-one" OSGi-fied JAX-RS RI bundle (jaxrs-ri.jar). Attached to that are two compressed JAX-RS RI archives. The first archive (jaxrs-ri.zip) consists of binary RI bits and contains the API jar (under "api" directory), RI libraries (under "lib" directory) as well as all external RI dependencies (under "ext" directory). The secondary archive (jaxrs-ri-src.zip) contains buildable JAX-RS RI source bundle and contains the API jar (under "api" directory), RI sources (under "src" directory) as well as all external RI dependencies (under "ext" directory). The second archive also contains "build.xml" ANT script that builds the RI sources. To build the JAX-RS RI simply unzip the archive, cd to the created jaxrs-ri directory and invoke "ant" from the command line.

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/*
 * Copyright (c) 2012, 2020 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.server.internal.inject;

import java.util.function.Function;

import jakarta.ws.rs.BeanParam;

import jakarta.inject.Provider;
import jakarta.inject.Singleton;

import org.glassfish.jersey.internal.inject.Bindings;
import org.glassfish.jersey.internal.inject.ForeignDescriptor;
import org.glassfish.jersey.internal.inject.InjectionManager;
import org.glassfish.jersey.internal.util.collection.Cache;
import org.glassfish.jersey.process.internal.RequestScoped;
import org.glassfish.jersey.server.ContainerRequest;
import org.glassfish.jersey.server.model.Parameter;

/**
 * Value factory provider for {@link BeanParam bean parameters}.
 *
 * @author Miroslav Fuksa
 */
@Singleton
final class BeanParamValueParamProvider extends AbstractValueParamProvider {

    private final InjectionManager injectionManager;

    private static final class BeanParamValueProvider implements Function {
        private final Parameter parameter;
        private final InjectionManager injectionManager;

        private final Cache, ForeignDescriptor> descriptorCache
                = new Cache<>(new Function, ForeignDescriptor>() {
                    @Override
                    public ForeignDescriptor apply(Class key) {
                        // below we make sure HK2 behaves as if injection happens into a request scoped type
                        // this is to avoid having proxies injected (see JERSEY-2386)
                        // before touching the following statement, check BeanParamMemoryLeakTest first!
                        return injectionManager
                                .createForeignDescriptor(Bindings.serviceAsContract(key).in(RequestScoped.class));
                    }
                });

        private BeanParamValueProvider(InjectionManager injectionManager, Parameter parameter) {
            this.injectionManager = injectionManager;
            this.parameter = parameter;
        }

        @Override
        public Object apply(ContainerRequest request) {
            Class rawType = parameter.getRawType();
            Object fromHk2 = injectionManager.getInstance(rawType);
            if (fromHk2 != null) { // the bean parameter type is already bound in HK2, let's just take it from there
                return fromHk2;
            }
            ForeignDescriptor foreignDescriptor = descriptorCache.apply(rawType);
            return injectionManager.getInstance(foreignDescriptor);
        }
    }

    /**
     * Creates new instance initialized from parameters injected by HK2.
     *
     * @param mpep            multivalued parameter extractor provider.
     */
    public BeanParamValueParamProvider(Provider mpep,
            InjectionManager injectionManager) {
        super(mpep, Parameter.Source.BEAN_PARAM);
        this.injectionManager = injectionManager;
    }

    @Override
    public Function createValueProvider(Parameter parameter) {
        return new BeanParamValueProvider(injectionManager, parameter);
    }
}