/*
* Copyright (c) 2012, 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.routing;
import org.glassfish.jersey.server.internal.process.Endpoint;
import org.glassfish.jersey.server.internal.process.RequestProcessingContext;
Routing tree assembly utilities.
Author: Marek Potociar
/**
* Routing tree assembly utilities.
*
* @author Marek Potociar
*/
final class Routers {
private static final Router IDENTITY_ROUTER = new Router() {
@Override
public Continuation apply(final RequestProcessingContext data) {
return Continuation.of(data);
}
};
private Routers() {
throw new AssertionError("No instances of this class.");
}
Create a terminal "no-op router" that accepts any input context and returns the unchanged request and an empty
continuation iterator.
Returns: a terminal "no-op" router.
/**
* Create a terminal "no-op router" that accepts any input context and returns the unchanged request and an empty
* continuation iterator.
*
* @return a terminal "no-op" router.
*/
public static Router noop() {
return IDENTITY_ROUTER;
}
Creates a terminal Router
that wraps the given
endpoint
. The Router.apply
method of the created hierarchical router returns the unchanged request and an empty continuation iterator. Params: - endpoint – a server-side endpoint to be wrapped in a router instance.
Returns: a router that wraps the supplied endpoint.
/**
* Creates a terminal {@link Router} that wraps the given {@link org.glassfish.jersey.server.internal.process.Endpoint
* endpoint}.
*
* The {@link Router#apply} method of the created hierarchical router returns the unchanged request and an empty
* continuation iterator.
*
* @param endpoint a server-side endpoint to be wrapped in a router instance.
* @return a router that wraps the supplied endpoint.
*/
public static Router endpoint(final Endpoint endpoint) {
return new EndpointRouter(endpoint);
}
Extract endpoint stored in a router (if any).
Params: - router – router from which a server endpoint should be extracted.
Returns: extracted endpoint or null
if there was no endpoint stored in the router.
/**
* Extract endpoint stored in a router (if any).
*
* @param router router from which a server endpoint should be extracted.
* @return extracted endpoint or {@code null} if there was no endpoint stored in the router.
*/
public static Endpoint extractEndpoint(final Router router) {
if (router instanceof EndpointRouter) {
return ((EndpointRouter) router).endpoint;
}
return null;
}
private static class EndpointRouter implements Router {
private final Endpoint endpoint;
public EndpointRouter(final Endpoint endpoint) {
this.endpoint = endpoint;
}
@Override
public Continuation apply(RequestProcessingContext context) {
return Continuation.of(context);
}
}
}