PrefaceFrame.java

package com.firefly.codec.http2.frame;

import java.nio.charset.StandardCharsets;

public class PrefaceFrame extends Frame {
	/**
	 * The bytes of the HTTP/2 preface that form a legal HTTP/1.1 request, used
	 * in the direct upgrade.
	 */
	public static final byte[] PREFACE_PREAMBLE_BYTES = ("PRI * HTTP/2.0\r\n" + "\r\n")
			.getBytes(StandardCharsets.US_ASCII);

	/**
	 * The HTTP/2 preface bytes.
	 */
	public static final byte[] PREFACE_BYTES = ("PRI * HTTP/2.0\r\n" + "\r\n" + "SM\r\n" + "\r\n")
			.getBytes(StandardCharsets.US_ASCII);

	public PrefaceFrame() {
		super(FrameType.PREFACE);
	}
}