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Jersey core server implementation
/*
* 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());
}
}
}
}