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annotate src/org/eclipse/jetty/io/View.java @ 1039:a7319f14ba1e
remove Buffer.isImmutable()
| author | Franklin Schmidt <fschmidt@gmail.com> |
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| date | Thu, 03 Nov 2016 22:55:28 -0600 |
| parents | eca26899c4bc |
| children | 35e3c864d7a7 |
| rev | line source |
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1 // |
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2 // ======================================================================== |
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3 // Copyright (c) 1995-2014 Mort Bay Consulting Pty. Ltd. |
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4 // ------------------------------------------------------------------------ |
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5 // All rights reserved. This program and the accompanying materials |
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6 // are made available under the terms of the Eclipse Public License v1.0 |
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7 // and Apache License v2.0 which accompanies this distribution. |
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8 // |
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9 // The Eclipse Public License is available at |
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10 // http://www.eclipse.org/legal/epl-v10.html |
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11 // |
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12 // The Apache License v2.0 is available at |
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13 // http://www.opensource.org/licenses/apache2.0.php |
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14 // |
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15 // You may elect to redistribute this code under either of these licenses. |
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16 // ======================================================================== |
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17 // |
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18 |
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19 package org.eclipse.jetty.io; |
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20 |
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21 /** |
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22 * A View on another buffer. Allows operations that do not change the _content or |
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23 * indexes of the backing buffer. |
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24 * |
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25 * |
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26 * |
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27 */ |
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28 public final class View extends AbstractBuffer |
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29 { |
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30 private Buffer _buffer; |
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31 |
| 1005 | 32 /** |
| 33 * @param buffer The <code>Buffer</code> on which we are presenting a <code>View</code>. | |
| 34 * @param mark The initial value of the {@link Buffer#markIndex mark index} | |
| 35 * @param get The initial value of the {@link Buffer#getIndex get index} | |
| 36 * @param put The initial value of the {@link Buffer#putIndex put index} | |
| 37 * @param access The access level - one of the constants from {@link Buffer}. | |
| 38 */ | |
| 39 public View(Buffer buffer, int mark, int get, int put,int access) | |
| 40 { | |
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41 super(access); |
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42 _buffer = buffer.buffer(); |
| 1005 | 43 setPutIndex(put); |
| 44 setGetIndex(get); | |
| 45 setMarkIndex(mark); | |
| 46 } | |
| 47 | |
| 48 public View() | |
| 49 { | |
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50 super(READWRITE); |
| 1005 | 51 } |
| 52 | |
| 53 /** | |
| 54 * Update view to buffer | |
| 55 */ | |
| 56 public void update(Buffer buffer) | |
| 57 { | |
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58 _access = READWRITE; |
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59 _buffer = buffer.buffer(); |
| 1005 | 60 setGetIndex(0); |
| 61 setPutIndex(buffer.putIndex()); | |
| 62 setGetIndex(buffer.getIndex()); | |
| 63 setMarkIndex(buffer.markIndex()); | |
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64 _access = buffer.isReadOnly()?READONLY:READWRITE; |
| 1005 | 65 } |
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66 |
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67 @Override |
| 1005 | 68 public byte[] array() |
| 69 { | |
| 70 return _buffer.array(); | |
| 71 } | |
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72 |
| 1005 | 73 @Override |
| 74 public Buffer buffer() | |
| 75 { | |
| 76 return _buffer.buffer(); | |
| 77 } | |
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78 |
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79 @Override |
| 1005 | 80 public int capacity() |
| 81 { | |
| 82 return _buffer.capacity(); | |
| 83 } | |
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84 |
| 1005 | 85 @Override |
| 86 public void clear() | |
| 87 { | |
| 88 setMarkIndex(-1); | |
| 89 setGetIndex(0); | |
| 90 setPutIndex(_buffer.getIndex()); | |
| 91 setGetIndex(_buffer.getIndex()); | |
| 92 } | |
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93 |
| 1005 | 94 @Override |
| 95 public void compact() | |
| 96 { | |
| 97 // TODO | |
| 98 } | |
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99 |
| 1005 | 100 /* |
| 101 * (non-Javadoc) | |
| 102 * | |
| 103 * @see java.lang.Object#equals(java.lang.Object) | |
| 104 */ | |
| 105 @Override | |
| 106 public boolean equals(Object obj) | |
| 107 { | |
| 108 return this==obj ||((obj instanceof Buffer)&& obj.equals(this)) || super.equals(obj); | |
| 109 } | |
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110 |
| 1005 | 111 @Override |
| 112 public boolean isReadOnly() | |
| 113 { | |
| 114 return _buffer.isReadOnly(); | |
| 115 } | |
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116 |
| 1005 | 117 @Override |
| 118 public byte peek(int index) | |
| 119 { | |
| 120 return _buffer.peek(index); | |
| 121 } | |
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122 |
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123 @Override |
| 1005 | 124 public int peek(int index, byte[] b, int offset, int length) |
| 125 { | |
| 126 return _buffer.peek(index,b,offset,length); | |
| 127 } | |
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128 |
| 1005 | 129 @Override |
| 130 public int poke(int index, Buffer src) | |
| 131 { | |
| 132 return _buffer.poke(index,src); | |
| 133 } | |
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134 |
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135 @Override |
| 1005 | 136 public void poke(int index, byte b) |
| 137 { | |
| 138 _buffer.poke(index,b); | |
| 139 } | |
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140 |
| 1005 | 141 @Override |
| 142 public int poke(int index, byte[] b, int offset, int length) | |
| 143 { | |
| 144 return _buffer.poke(index,b,offset,length); | |
| 145 } | |
| 146 | |
| 147 @Override | |
| 148 public String toString() | |
| 149 { | |
| 150 if (_buffer==null) | |
| 151 return "INVALID"; | |
| 152 return super.toString(); | |
| 153 } | |
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154 } |