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Jersey core server implementation
/*
* Copyright (c) 2011, 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.model.internal;
import java.lang.reflect.InvocationHandler;
import javax.ws.rs.ProcessingException;
import javax.ws.rs.container.ResourceContext;
import javax.ws.rs.core.Response;
import javax.inject.Singleton;
import org.glassfish.jersey.server.ContainerRequest;
import org.glassfish.jersey.server.internal.inject.ConfiguredValidator;
import org.glassfish.jersey.server.model.Invocable;
import org.glassfish.jersey.server.spi.internal.ResourceMethodDispatcher;
/**
* Specific resource method dispatcher for dispatching requests to a void
* {@link java.lang.reflect.Method Java method} with no input arguments
* using a supplied {@link InvocationHandler Java method invocation handler}.
*
* @author Marek Potociar
* @author Jakub Podlesak
*/
@Singleton
final class VoidVoidDispatcherProvider implements ResourceMethodDispatcher.Provider {
private final ResourceContext resourceContext;
VoidVoidDispatcherProvider(ResourceContext resourceContext) {
this.resourceContext = resourceContext;
}
private static class VoidToVoidDispatcher extends AbstractJavaResourceMethodDispatcher {
private VoidToVoidDispatcher(final Invocable resourceMethod,
final InvocationHandler handler,
final ConfiguredValidator validator) {
super(resourceMethod, handler, validator);
}
@Override
public Response doDispatch(final Object resource, final ContainerRequest containerRequest) throws ProcessingException {
invoke(containerRequest, resource);
return Response.noContent().build();
}
}
@Override
public ResourceMethodDispatcher create(final Invocable resourceMethod,
final InvocationHandler handler,
final ConfiguredValidator validator) {
if (resourceMethod.getHandlingMethod().getReturnType() != void.class || !resourceMethod.getParameters().isEmpty()) {
return null;
}
return resourceContext.initResource(new VoidToVoidDispatcher(resourceMethod, handler, validator));
}
}