All Downloads are FREE. Search and download functionalities are using the official Maven repository.

io.grpc.GlobalInterceptors Maven / Gradle / Ivy

There is a newer version: 1.66.0
Show newest version
/*
 * Copyright 2022 The gRPC Authors
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package io.grpc;

import static com.google.common.base.Preconditions.checkNotNull;

import java.util.ArrayList;
import java.util.Collections;
import java.util.List;

/** The collection of global interceptors and global server stream tracers. */
@Internal
final class GlobalInterceptors {
  private static List clientInterceptors = null;
  private static List serverInterceptors = null;
  private static List serverStreamTracerFactories =
      null;
  private static boolean isGlobalInterceptorsTracersSet;
  private static boolean isGlobalInterceptorsTracersGet;

  // Prevent instantiation
  private GlobalInterceptors() {}

  /**
   * Sets the list of global interceptors and global server stream tracers.
   *
   * 

If {@code setInterceptorsTracers()} is called again, this method will throw {@link * IllegalStateException}. * *

It is only safe to call early. This method throws {@link IllegalStateException} after any of * the get calls [{@link #getClientInterceptors()}, {@link #getServerInterceptors()} or {@link * #getServerStreamTracerFactories()}] has been called, in order to limit changes to the result of * {@code setInterceptorsTracers()}. * * @param clientInterceptorList list of {@link ClientInterceptor} that make up global Client * Interceptors. * @param serverInterceptorList list of {@link ServerInterceptor} that make up global Server * Interceptors. * @param serverStreamTracerFactoryList list of {@link ServerStreamTracer.Factory} that make up * global ServerStreamTracer factories. */ static synchronized void setInterceptorsTracers( List clientInterceptorList, List serverInterceptorList, List serverStreamTracerFactoryList) { if (isGlobalInterceptorsTracersGet) { throw new IllegalStateException("Set cannot be called after any get call"); } if (isGlobalInterceptorsTracersSet) { throw new IllegalStateException("Global interceptors and tracers are already set"); } checkNotNull(clientInterceptorList); checkNotNull(serverInterceptorList); checkNotNull(serverStreamTracerFactoryList); clientInterceptors = Collections.unmodifiableList(new ArrayList<>(clientInterceptorList)); serverInterceptors = Collections.unmodifiableList(new ArrayList<>(serverInterceptorList)); serverStreamTracerFactories = Collections.unmodifiableList(new ArrayList<>(serverStreamTracerFactoryList)); isGlobalInterceptorsTracersSet = true; } /** Returns the list of global {@link ClientInterceptor}. If not set, this returns null. */ static synchronized List getClientInterceptors() { isGlobalInterceptorsTracersGet = true; return clientInterceptors; } /** Returns list of global {@link ServerInterceptor}. If not set, this returns null. */ static synchronized List getServerInterceptors() { isGlobalInterceptorsTracersGet = true; return serverInterceptors; } /** Returns list of global {@link ServerStreamTracer.Factory}. If not set, this returns null. */ static synchronized List getServerStreamTracerFactories() { isGlobalInterceptorsTracersGet = true; return serverStreamTracerFactories; } }





© 2015 - 2024 Weber Informatics LLC | Privacy Policy