| /* |
| * Copyright 2014, Google Inc. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions are |
| * met: |
| * |
| * * Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * * Redistributions in binary form must reproduce the above |
| * copyright notice, this list of conditions and the following disclaimer |
| * in the documentation and/or other materials provided with the |
| * distribution. |
| * |
| * * Neither the name of Google Inc. nor the names of its |
| * contributors may be used to endorse or promote products derived from |
| * this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| package io.grpc.util; |
| |
| import io.grpc.BindableService; |
| import io.grpc.ExperimentalApi; |
| import io.grpc.HandlerRegistry; |
| import io.grpc.MethodDescriptor; |
| import io.grpc.ServerMethodDefinition; |
| import io.grpc.ServerServiceDefinition; |
| |
| import java.util.ArrayList; |
| import java.util.Collections; |
| import java.util.List; |
| import java.util.concurrent.ConcurrentHashMap; |
| import java.util.concurrent.ConcurrentMap; |
| |
| import javax.annotation.Nullable; |
| import javax.annotation.concurrent.ThreadSafe; |
| |
| /** |
| * Default implementation of {@link MutableHandlerRegistry}. |
| * |
| * <p>Uses {@link ConcurrentHashMap} to avoid service registration excessively |
| * blocking method lookup. |
| */ |
| @ThreadSafe |
| @ExperimentalApi("https://github.com/grpc/grpc-java/issues/933") |
| public final class MutableHandlerRegistry extends HandlerRegistry { |
| private final ConcurrentMap<String, ServerServiceDefinition> services |
| = new ConcurrentHashMap<String, ServerServiceDefinition>(); |
| |
| /** |
| * Registers a service. |
| * |
| * @return the previously registered service with the same service descriptor name if exists, |
| * otherwise {@code null}. |
| */ |
| @Nullable |
| public ServerServiceDefinition addService(ServerServiceDefinition service) { |
| return services.put(service.getServiceDescriptor().getName(), service); |
| } |
| |
| /** |
| * Registers a service. |
| * |
| * @return the previously registered service with the same service descriptor name if exists, |
| * otherwise {@code null}. |
| */ |
| @Nullable |
| public ServerServiceDefinition addService(BindableService bindableService) { |
| return addService(bindableService.bindService()); |
| } |
| |
| public boolean removeService(ServerServiceDefinition service) { |
| return services.remove(service.getServiceDescriptor().getName(), service); |
| } |
| |
| /** |
| * Note: This does not necessarily return a consistent view of the map. |
| */ |
| @Override |
| @ExperimentalApi("https://github.com/grpc/grpc-java/issues/2222") |
| public List<ServerServiceDefinition> getServices() { |
| return Collections.unmodifiableList(new ArrayList<ServerServiceDefinition>(services.values())); |
| } |
| |
| /** |
| * Note: This does not actually honor the authority provided. It will, eventually in the future. |
| */ |
| @Override |
| @Nullable |
| public ServerMethodDefinition<?, ?> lookupMethod(String methodName, @Nullable String authority) { |
| String serviceName = MethodDescriptor.extractFullServiceName(methodName); |
| if (serviceName == null) { |
| return null; |
| } |
| ServerServiceDefinition service = services.get(serviceName); |
| if (service == null) { |
| return null; |
| } |
| return service.getMethod(methodName); |
| } |
| } |