core/src/main/java/com/google/net/stubby/transport/StreamListener.java

/*
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 * in the documentation and/or other materials provided with the
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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 com.google.net.stubby.transport;

import java.io.InputStream;

/**
 * An observer of {@link Stream} events. It is guaranteed to only have one concurrent callback at a
 * time.
 */
public interface StreamListener {
  /**
   * Called upon receiving a message from the remote end-point. The {@link InputStream} is
   * non-blocking and contains the entire message.
   *
   * <p>The provided {@code message} {@link InputStream} must be closed by the listener.
   *
   * <p>This method should return quickly, as the same thread may be used to process other streams.
   *
   * @param message the bytes of the message.
   * @param length the length of the message {@link InputStream}.
   */
  void messageRead(InputStream message, int length);
}