Java 类io.netty.handler.codec.http2.Http2Exception.StreamException 实例源码

/**
 * Converts the {@link Throwable} to a {@link Status}, taking into account exceptions specific to Armeria as
 * well.
 */
public static Status fromThrowable(Throwable t) {
    requireNonNull(t, "t");
    Status s = Status.fromThrowable(t);
    if (s.getCode() != Code.UNKNOWN) {
        return s;
    }
    if (t instanceof StreamException) {
        StreamException streamException = (StreamException) t;
        if (streamException.getMessage() != null && streamException.getMessage().contains("RST_STREAM")) {
            return Status.CANCELLED;
        }
    }
    if (t instanceof ClosedChannelException) {
        // ClosedChannelException is used any time the Netty channel is closed. Proper error
        // processing requires remembering the error that occurred before this one and using it
        // instead.
        return Status.UNKNOWN.withCause(t);
    }
    if (t instanceof IOException) {
        return Status.UNAVAILABLE.withCause(t);
    }
    if (t instanceof Http2Exception) {
        return Status.INTERNAL.withCause(t);
    }
    if (t instanceof ResponseTimeoutException) {
        return Status.DEADLINE_EXCEEDED.withCause(t);
    }
    return s;
}

@Override
protected void onStreamError(ChannelHandlerContext ctx, Throwable cause,
    StreamException http2Ex) {
  logger.log(Level.WARNING, "Stream Error", cause);
  NettyServerStream.TransportState serverStream = serverStream(
      connection().stream(Http2Exception.streamId(http2Ex)));
  if (serverStream != null) {
    serverStream.transportReportStatus(Utils.statusFromThrowable(cause));
  }
  // TODO(ejona): Abort the stream by sending headers to help the client with debugging.
  // Delegate to the base class to send a RST_STREAM.
  super.onStreamError(ctx, cause, http2Ex);
}