core/src/main/java/io/grpc/internal/ForwardingConnectionClientTransport.java

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 * in the documentation and/or other materials provided with the
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 * contributors may be used to endorse or promote products derived from
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 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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package io.grpc.internal;

import io.grpc.Attributes;
import io.grpc.CallOptions;
import io.grpc.Metadata;
import io.grpc.MethodDescriptor;
import io.grpc.Status;

import java.util.concurrent.Executor;

abstract class ForwardingConnectionClientTransport implements ConnectionClientTransport {
  @Override
  public Runnable start(Listener listener) {
    return delegate().start(listener);
  }

  @Override
  public void shutdown() {
    delegate().shutdown();
  }

  @Override
  public void shutdownNow(Status status) {
    delegate().shutdownNow(status);
  }

  @Override
  public ClientStream newStream(
      MethodDescriptor<?, ?> method, Metadata headers, CallOptions callOptions,
      StatsTraceContext statsTraceCtx) {
    return delegate().newStream(method, headers, callOptions, statsTraceCtx);
  }

  @Override
  public ClientStream newStream(MethodDescriptor<?, ?> method, Metadata headers) {
    return delegate().newStream(method, headers);
  }

  @Override
  public void ping(PingCallback callback, Executor executor) {
    delegate().ping(callback, executor);
  }

  @Override
  public LogId getLogId() {
    return delegate().getLogId();
  }

  @Override
  public Attributes getAttributes() {
    return delegate().getAttributes();
  }

  @Override
  public String toString() {
    return getClass().getSimpleName() + "[" + delegate().toString() + "]";
  }

  protected abstract ConnectionClientTransport delegate();
}