1 /* 2 * Copyright (c) 2015, 2016, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 26 package jdk.incubator.http.internal.frame; 27 28 public class PingFrame extends Http2Frame { 29 30 31 private final byte[] data; 32 33 public static final int TYPE = 0x6; 34 35 // Flags 36 public static final int ACK = 0x1; 37 38 public PingFrame(int flags, byte[] data) { 39 super(0, flags); 40 assert data.length == 8; 41 this.data = data; 42 } 43 44 @Override 45 public int type() { 46 return TYPE; 47 } 48 49 @Override 50 int length() { 51 return 8; 52 } 53 54 @Override 55 public String flagAsString(int flag) { 56 switch (flag) { 57 case ACK: 58 return "ACK"; 59 } 60 return super.flagAsString(flag); 61 } 62 63 public byte[] getData() { 64 return data; 65 } 66 67 }