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Jersey core client implementation
/*
* 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.client.internal.routing;
import org.glassfish.jersey.client.ClientRequest;
import org.glassfish.jersey.internal.routing.CombinedMediaType;
import org.glassfish.jersey.internal.routing.ContentTypeDeterminer;
import org.glassfish.jersey.internal.routing.RequestSpecificConsumesProducesAcceptor;
import org.glassfish.jersey.internal.util.ReflectionHelper;
import org.glassfish.jersey.message.MessageBodyWorkers;
import org.glassfish.jersey.message.internal.AcceptableMediaType;
import org.glassfish.jersey.message.internal.HeaderUtils;
import org.glassfish.jersey.message.internal.InboundMessageContext;
import jakarta.ws.rs.client.ClientRequestContext;
import jakarta.ws.rs.core.Configuration;
import jakarta.ws.rs.core.GenericType;
import jakarta.ws.rs.core.HttpHeaders;
import jakarta.ws.rs.core.MediaType;
import jakarta.ws.rs.core.Response;
import jakarta.ws.rs.ext.ReaderInterceptor;
import java.util.Collections;
import java.util.List;
/**
* Client side {@link Response} utility class determining the media type.
* Used for determining media type when {@link ClientRequestContext#abortWith(Response)} on
* {@link jakarta.ws.rs.client.ClientRequestFilter#filter(ClientRequestContext)} is used without specifying the response
* media type.
*/
public class ClientResponseMediaTypeDeterminer extends ContentTypeDeterminer {
private static final AbortedRouting ABORTED_ROUTING = new AbortedRouting();
/**
* Constructor providing the MessageBodyWorkers that specify the media types.
*
* @param workers MessageBodyWorkers that specify the media types.
*/
public ClientResponseMediaTypeDeterminer(MessageBodyWorkers workers) {
super(workers);
}
/**
* Set the Response media type if not correctly set by the user. The media type is determined by the entity type
* and provided MessageBodyWorkers.
*
* @param response the response containing the HTTP headers, entity and that is eventually updated.
* @param configuration the runtime configuration settings.
*/
public void setResponseMediaTypeIfNotSet(final Response response, Configuration configuration) {
if (response.hasEntity() && response.getMediaType() == null) {
final InboundMessageContext headerContext = new InboundMessageContext(configuration) {
@Override
protected Iterable getReaderInterceptors() {
return null;
}
};
headerContext.headers(HeaderUtils.asStringHeaders(response.getHeaders(), configuration));
final MediaType mediaType = determineResponseMediaType(response.getEntity(),
headerContext.getQualifiedAcceptableMediaTypes());
response.getHeaders().add(HttpHeaders.CONTENT_TYPE, mediaType);
}
}
/**
* Determine the {@link MediaType} of the {@link Response} based on writers suitable for the given entity instance.
*
* @param entity entity instance to determine the media type for
* @param acceptableMediaTypes acceptable media types from request.
* @return media type of the response.
*/
private MediaType determineResponseMediaType(
final Object entity,
final List acceptableMediaTypes) {
final GenericType type = ReflectionHelper.genericTypeFor(entity);
final CombinedMediaType wildcardType = CombinedMediaType.create(MediaType.WILDCARD_TYPE,
new CombinedMediaType.EffectiveMediaType(MediaType.WILDCARD_TYPE));
final RequestSpecificConsumesProducesAcceptor selectedMethod =
new RequestSpecificConsumesProducesAcceptor<>(wildcardType, wildcardType, true, ABORTED_ROUTING);
// Media types producible by method.
final List methodProducesTypes = Collections.singletonList(MediaType.WILDCARD_TYPE);
return determineResponseMediaType(type.getRawType(), type.getType(), selectedMethod, acceptableMediaTypes,
methodProducesTypes, null);
}
/**
* An information that the routing aborted by {@code jakarta.ws.rs.client.ClientRequestContext#abortWith(Response)}.
*/
private static final class AbortedRouting {
@Override
public String toString() {
return "{Aborted by ClientRequestFilter}";
}
}
}