| /* |
| * Copyright (c) 2012, 2018 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.model.internal; |
| |
| import java.lang.reflect.Type; |
| import java.util.Set; |
| |
| import javax.ws.rs.Priorities; |
| |
| import javax.annotation.Priority; |
| |
| import org.glassfish.jersey.model.ContractProvider; |
| |
| /** |
| * Jersey ranked provider model. |
| * |
| * @param <T> service provider contract Java type. |
| * @author Michal Gajdos |
| */ |
| public class RankedProvider<T> { |
| |
| private final T provider; |
| private final int rank; |
| private final Set<Type> contractTypes; |
| |
| /** |
| * Creates a new {@code RankedProvider} instance. The rank of the provider is obtained from the {@link javax.annotation.Priority} |
| * annotation or is set to {@value javax.ws.rs.Priorities#USER} if the annotation is not present. |
| * |
| * @param provider service provider to create a {@code RankedProvider} instance from. |
| */ |
| public RankedProvider(final T provider) { |
| this.provider = provider; |
| this.rank = computeRank(provider, ContractProvider.NO_PRIORITY); |
| this.contractTypes = null; |
| } |
| |
| /** |
| * Creates a new {@code RankedProvider} instance for given {@code provider} with specific {@code rank} (> 0). |
| * |
| * @param provider service provider to create a {@code RankedProvider} instance from. |
| * @param rank rank of this provider. |
| */ |
| public RankedProvider(final T provider, final int rank) { |
| this(provider, rank, null); |
| } |
| |
| /** |
| * Creates a new {@code RankedProvider} instance for given {@code provider} with specific {@code rank} (> 0). |
| * |
| * @param provider service provider to create a {@code RankedProvider} instance from. |
| * @param rank rank of this provider. |
| * @param contracts contracts implemented by the service provider |
| */ |
| public RankedProvider(final T provider, final int rank, final Set<Type> contracts) { |
| this.provider = provider; |
| this.rank = computeRank(provider, rank); |
| this.contractTypes = contracts; |
| } |
| |
| private int computeRank(final T provider, final int rank) { |
| if (rank > 0) { |
| return rank; |
| } else { |
| Class<?> clazz = provider.getClass(); |
| |
| // when provided instance is a proxy (from weld), we need to get the right class to check for |
| // @Priority annotation - proxy doesn't propagate isAnnotationPresent to the parent class. |
| while (clazz.isSynthetic()) { |
| clazz = clazz.getSuperclass(); |
| } |
| |
| if (clazz.isAnnotationPresent(Priority.class)) { |
| return clazz.getAnnotation(Priority.class).value(); |
| } else { |
| return Priorities.USER; |
| } |
| } |
| } |
| |
| public T getProvider() { |
| return provider; |
| } |
| |
| public int getRank() { |
| return rank; |
| } |
| |
| /** |
| * Get me set of implemented contracts. |
| * Returns null if no contracts are implemented. |
| * |
| * @return set of contracts or null if no contracts have been implemented. |
| */ |
| public Set<Type> getContractTypes() { |
| return contractTypes; |
| } |
| |
| @Override |
| public String toString() { |
| return provider.getClass().getName(); |
| } |
| } |