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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) 2010, 2019 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 javax.ws.rs.HeaderParam;

import javax.inject.Provider;
import javax.inject.Singleton;

import org.glassfish.jersey.internal.inject.ExtractorException;
import org.glassfish.jersey.server.ContainerRequest;
import org.glassfish.jersey.server.ParamException;
import org.glassfish.jersey.server.model.Parameter;

/**
 * Value supplier provider supporting the {@link HeaderParam @HeaderParam} injection annotation.
 *
 * @author Paul Sandoz
 * @author Marek Potociar
 */
@Singleton
final class HeaderParamValueParamProvider extends AbstractValueParamProvider {

    /**
     * Injection constructor.
     *
     * @param mpep multivalued map parameter extractor provider.
     */
    public HeaderParamValueParamProvider(Provider mpep) {
        super(mpep, Parameter.Source.HEADER);
    }

    @Override
    public Function createValueProvider(Parameter parameter) {
        String parameterName = parameter.getSourceName();
        if (parameterName == null || parameterName.length() == 0) {
            // Invalid header parameter name
            return null;
        }

        MultivaluedParameterExtractor e = get(parameter);
        if (e == null) {
            return null;
        }

        return new HeaderParamValueProvider(e);
    }

    private static final class HeaderParamValueProvider implements Function {

        private final MultivaluedParameterExtractor extractor;

        HeaderParamValueProvider(MultivaluedParameterExtractor extractor) {
            this.extractor = extractor;
        }

        @Override
        public Object apply(ContainerRequest containerRequest) {
            try {
                return extractor.extract(containerRequest.getHeaders());
            } catch (ExtractorException e) {
                throw new ParamException.HeaderParamException(e.getCause(),
                        extractor.getName(), extractor.getDefaultValueString());
            }
        }
    }
}