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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) 2019, 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.internal;

import org.glassfish.jersey.internal.util.PropertiesHelper;
import org.glassfish.jersey.spi.HeaderDelegateProvider;

import jakarta.ws.rs.core.Application;
import jakarta.ws.rs.core.Configuration;
import jakarta.ws.rs.core.Link;
import jakarta.ws.rs.core.Response;
import jakarta.ws.rs.core.UriBuilder;
import jakarta.ws.rs.core.Variant;
import jakarta.ws.rs.ext.RuntimeDelegate;
import java.util.Collections;
import java.util.HashSet;
import java.util.Set;

/**
 * RuntimeDelegate Decorator that changes behaviour due to provided runtime information.
 * 
 * Currently the following is possible to be configured based on configurable properties:
 * 

 *     {@link org.glassfish.jersey.spi.HeaderDelegateProvider} usage based on
 *     {@link org.glassfish.jersey.CommonProperties#METAINF_SERVICES_LOOKUP_DISABLE}
 * 
 */
public class RuntimeDelegateDecorator {

    /**
     * The decorated {@link RuntimeDelegate} that uses {@link HeaderDelegateProvider HeaderDelegateProviders} based on
     * whether {@link org.glassfish.jersey.CommonProperties#FEATURE_AUTO_DISCOVERY_DISABLE} is set or not
     *
     * @param configuration that has or has not {@link org.glassfish.jersey.CommonProperties#FEATURE_AUTO_DISCOVERY_DISABLE} set
     * @return {@link RuntimeDelegate} that uses {@link HeaderDelegateProvider HeaderDelegateProviders}
     */
    public static RuntimeDelegate configured(Configuration configuration) {
        return new ConfigurableRuntimeDelegate(RuntimeDelegate.getInstance(), configuration);
    }

    private static class ConfigurableRuntimeDelegate extends RuntimeDelegate {

        private final RuntimeDelegate runtimeDelegate;
        private final Configuration configuration;
        private static final Set headerDelegateProviders;

        private ConfigurableRuntimeDelegate(RuntimeDelegate runtimeDelegate, Configuration configuration) {
            this.runtimeDelegate = runtimeDelegate;
            this.configuration = configuration;
        }

        @Override
        public UriBuilder createUriBuilder() {
            return runtimeDelegate.createUriBuilder();
        }

        @Override
        public Response.ResponseBuilder createResponseBuilder() {
            return runtimeDelegate.createResponseBuilder();
        }

        @Override
        public Variant.VariantListBuilder createVariantListBuilder() {
            return runtimeDelegate.createVariantListBuilder();
        }

        @Override
        public  T createEndpoint(Application application, Class endpointType)
                throws IllegalArgumentException, UnsupportedOperationException {
            return runtimeDelegate.createEndpoint(application, endpointType);
        }

        @Override
        public  RuntimeDelegate.HeaderDelegate createHeaderDelegate(Class type) throws IllegalArgumentException {
            RuntimeDelegate.HeaderDelegate headerDelegate = null;
            if (configuration == null
                    || PropertiesHelper.isMetaInfServicesEnabled(configuration.getProperties(), configuration.getRuntimeType())) {
                headerDelegate = _createHeaderDelegate(type);
            }
            if (headerDelegate == null) {
                headerDelegate = runtimeDelegate.createHeaderDelegate(type);
            }
            return headerDelegate;
        }

        @Override
        public Link.Builder createLinkBuilder() {
            return runtimeDelegate.createLinkBuilder();
        }

        private  HeaderDelegate _createHeaderDelegate(final Class type) {
            for (final HeaderDelegateProvider hp : headerDelegateProviders) {
                if (hp.supports(type)) {
                    return hp;
                }
            }

            return null;
        }

        static {
            Set hps = new HashSet();
            for (HeaderDelegateProvider provider : ServiceFinder.find(HeaderDelegateProvider.class, true)) {
                hps.add(provider);
            }
            headerDelegateProviders = Collections.unmodifiableSet(hps);
        }
    }
}