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/*
 * Copyright 2018, 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 org.glowroot.agent.shaded.org.glowroot.agent.it.harness.shaded.io.grpc;

import java.io.Closeable;

/**
 * A binary log that can be installed on a channel or server. {@link #close} must be called after
 * all the servers and channels associated with the binary log are terminated.
 */
@ExperimentalApi("https://github.com/grpc/grpc-java/issues/4017")
public abstract class BinaryLog implements Closeable {

  public abstract  ServerMethodDefinition wrapMethodDefinition(
      ServerMethodDefinition oMethodDef);

  public abstract Channel wrapChannel(Channel channel);

  public static final CallOptions.Key CLIENT_CALL_ID_CALLOPTION_KEY
      = CallOptions.Key.create("binarylog-calloptions-key");

  /**
   * A CallId is two byte[] arrays both of size 8 that uniquely identifies the RPC. Users are
   * free to use the byte arrays however they see fit.
   */
  public static final class CallId {
    public final long hi;
    public final long lo;

    /**
     * Creates an instance.
     */
    public CallId(long hi, long lo) {
      this.hi = hi;
      this.lo = lo;
    }
  }
}