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    • org.glassfish.jersey.server.internal.inject.BeanParamValueSupplierProvider Maven / Gradle / Ivy

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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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    /*
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 *
 * Copyright (c) 2012-2017 Oracle and/or its affiliates. All rights reserved.
 *
 * The contents of this file are subject to the terms of either the GNU
 * General Public License Version 2 only ("GPL") or the Common Development
 * and Distribution License("CDDL") (collectively, the "License").  You
 * may not use this file except in compliance with the License.  You can
 * obtain a copy of the License at
 * http://glassfish.java.net/public/CDDL+GPL_1_1.html
 * or packager/legal/LICENSE.txt.  See the License for the specific
 * language governing permissions and limitations under the License.
 *
 * When distributing the software, include this License Header Notice in each
 * file and include the License file at packager/legal/LICENSE.txt.
 *
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 * file that accompanied this code.
 *
 * Modifications:
 * If applicable, add the following below the License Header, with the fields
 * enclosed by brackets [] replaced by your own identifying information:
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package org.glassfish.jersey.server.internal.inject;

import java.util.function.Function;

import javax.ws.rs.BeanParam;

import javax.inject.Provider;
import javax.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 BeanParamValueSupplierProvider extends AbstractValueSupplierProvider {

    private final InjectionManager injectionManager;

    private static final class BeanParamValueSupplier extends AbstractRequestDerivedValueSupplier {
        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 BeanParamValueSupplier(InjectionManager injectionManager, Parameter parameter,
                Provider requestProvider) {
            super(requestProvider);

            this.injectionManager = injectionManager;
            this.parameter = parameter;
        }

        @Override
        public Object get() {
            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.
     * @param requestProvider request provider.
     */
    public BeanParamValueSupplierProvider(MultivaluedParameterExtractorProvider mpep,
            Provider requestProvider, InjectionManager injectionManager) {
        super(mpep, requestProvider, Parameter.Source.BEAN_PARAM);
        this.injectionManager = injectionManager;
    }

    @Override
    public AbstractRequestDerivedValueSupplier createValueSupplier(
            Parameter parameter,
            Provider requestProvider) {

        return new BeanParamValueSupplier(injectionManager, parameter, requestProvider);
    }
}
    
    
    
    

    




    
    
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