1 /* |
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2 * Copyright (c) 2015, 2018, Oracle and/or its affiliates. All rights reserved. |
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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4 * |
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5 * This code is free software; you can redistribute it and/or modify it |
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6 * under the terms of the GNU General Public License version 2 only, as |
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7 * published by the Free Software Foundation. Oracle designates this |
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8 * particular file as subject to the "Classpath" exception as provided |
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9 * by Oracle in the LICENSE file that accompanied this code. |
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10 * |
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11 * This code is distributed in the hope that it will be useful, but WITHOUT |
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12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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14 * version 2 for more details (a copy is included in the LICENSE file that |
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15 * accompanied this code). |
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16 * |
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17 * You should have received a copy of the GNU General Public License version |
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18 * 2 along with this work; if not, write to the Free Software Foundation, |
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19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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20 * |
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21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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22 * or visit www.oracle.com if you need additional information or have any |
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23 * questions. |
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24 */ |
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25 |
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26 package jdk.incubator.http.internal.frame; |
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27 |
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28 import java.nio.ByteBuffer; |
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29 import java.util.List; |
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30 |
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31 public class HeadersFrame extends HeaderFrame { |
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32 |
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33 public static final int TYPE = 0x1; |
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34 |
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35 // Flags |
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36 public static final int END_STREAM = 0x1; |
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37 public static final int PADDED = 0x8; |
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38 public static final int PRIORITY = 0x20; |
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39 |
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40 |
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41 private int padLength; |
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42 private int streamDependency; |
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43 private int weight; |
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44 private boolean exclusive; |
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45 |
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46 public HeadersFrame(int streamid, int flags, List<ByteBuffer> headerBlocks, int padLength) { |
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47 super(streamid, flags, headerBlocks); |
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48 if (padLength > 0) { |
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49 setPadLength(padLength); |
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50 } |
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51 } |
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52 |
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53 public HeadersFrame(int streamid, int flags, List<ByteBuffer> headerBlocks) { |
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54 super(streamid, flags, headerBlocks); |
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55 } |
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56 |
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57 public HeadersFrame(int streamid, int flags, ByteBuffer headerBlock) { |
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58 this(streamid, flags, List.of(headerBlock)); |
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59 } |
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60 |
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61 @Override |
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62 public int type() { |
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63 return TYPE; |
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64 } |
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65 |
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66 @Override |
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67 int length() { |
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68 return headerLength |
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69 + ((flags & PADDED) != 0 ? (1 + padLength) : 0) |
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70 + ((flags & PRIORITY) != 0 ? 5 : 0); |
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71 } |
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72 |
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73 @Override |
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74 public String flagAsString(int flag) { |
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75 switch (flag) { |
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76 case END_STREAM: |
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77 return "END_STREAM"; |
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78 case PADDED: |
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79 return "PADDED"; |
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80 case PRIORITY: |
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81 return "PRIORITY"; |
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82 } |
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83 return super.flagAsString(flag); |
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84 } |
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85 |
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86 public void setPadLength(int padLength) { |
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87 this.padLength = padLength; |
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88 flags |= PADDED; |
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89 } |
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90 |
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91 int getPadLength() { |
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92 return padLength; |
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93 } |
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94 |
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95 public void setPriority(int streamDependency, boolean exclusive, int weight) { |
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96 this.streamDependency = streamDependency; |
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97 this.exclusive = exclusive; |
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98 this.weight = weight; |
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99 this.flags |= PRIORITY; |
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100 } |
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101 |
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102 public int getStreamDependency() { |
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103 return streamDependency; |
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104 } |
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105 |
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106 public int getWeight() { |
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107 return weight; |
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108 } |
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109 |
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110 public boolean getExclusive() { |
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111 return exclusive; |
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112 } |
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113 |
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114 } |
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