nl.topicus.jdbc.shaded.io.grpc.internal.ProxyDetector Maven / Gradle / Ivy

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JDBC Driver for Google Cloud Spanner

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/*
 * Copyright 2017, gRPC Authors All rights reserved.
 *
 * 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 nl.topicus.jdbc.shaded.io.grpc.internal;

import java.net.SocketAddress;
import nl.topicus.jdbc.shaded.javax.annotation.Nullable;

/**
 * A utility class to detect which proxy, if any, should be used for a given
 * {@link java.net.SocketAddress}.
 */
public interface ProxyDetector {
  /**
   * Given a target address, returns which proxy address should be used. If no proxy should be
   * used, then return value will be null.
   */
  @Nullable
  ProxyParameters proxyFor(SocketAddress targetServerAddress);
}