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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.model.internal;
import java.lang.reflect.InvocationHandler;
import java.util.Collection;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.inject.Singleton;
import org.glassfish.jersey.server.internal.LocalizationMessages;
import org.glassfish.jersey.server.internal.inject.ConfiguredValidator;
import org.glassfish.jersey.server.model.Invocable;
import org.glassfish.jersey.server.spi.internal.ResourceMethodDispatcher;
/**
* A resource method dispatcher provider factory.
*
* This class is used by {@link org.glassfish.jersey.server.model.ResourceMethodInvoker} to
* create a {@link org.glassfish.jersey.server.spi.internal.ResourceMethodDispatcher.Provider} instance
* that will be used to provide a {@link org.glassfish.jersey.server.spi.internal.ResourceMethodDispatcher}
* instances for all resource method invocations.
*
*
* JAX-RS resource methods are invoked by {@link org.glassfish.jersey.server.model.ResourceMethodInvoker
* resource method invoker}. Whenever a new incoming request has been routed to a resource method and the
* method is being invoked by the resource method invoker, the invoker consults a registered
* {@link org.glassfish.jersey.server.spi.internal.ResourceMethodDispatcher.Provider} instance to retrieve
* a {@link org.glassfish.jersey.server.spi.internal.ResourceMethodDispatcher} that will be ultimately used
* to dispatch the resource method invocation. This mechanism is useful for implementing any resource method
* interception logic.
*
*
* @author Paul Sandoz
* @author Marek Potociar
*/
@Singleton
public final class ResourceMethodDispatcherFactory implements ResourceMethodDispatcher.Provider {
private static final Logger LOGGER = Logger.getLogger(ResourceMethodDispatcherFactory.class.getName());
private final Collection providers;
ResourceMethodDispatcherFactory(Collection providers) {
this.providers = providers;
}
// ResourceMethodDispatchProvider
@Override
public ResourceMethodDispatcher create(Invocable resourceMethod, InvocationHandler handler, ConfiguredValidator validator) {
for (ResourceMethodDispatcher.Provider provider : providers) {
try {
ResourceMethodDispatcher dispatcher = provider.create(resourceMethod, handler, validator);
if (dispatcher != null) {
return dispatcher;
}
} catch (Exception e) {
LOGGER.log(Level.SEVERE,
LocalizationMessages.ERROR_PROCESSING_METHOD(resourceMethod, provider.getClass().getName()),
e);
}
}
return null;
}
}