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annotate src/org/eclipse/jetty/io/AbstractBuffers.java @ 1008:b664624a4423

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remove BuffersFactory
author Franklin Schmidt <fschmidt@gmail.com>
date Sun, 23 Oct 2016 17:43:49 -0600
parents 58a9c4a42292
children
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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 import org.eclipse.jetty.io.nio.DirectNIOBuffer;
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22 import org.eclipse.jetty.io.nio.IndirectNIOBuffer;
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23
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24 public abstract class AbstractBuffers implements Buffers
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25 {
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26 protected final Buffers.Type _headerType;
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27 protected final int _headerSize;
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28 protected final Buffers.Type _bufferType;
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29 protected final int _bufferSize;
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30
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31 public AbstractBuffers(Buffers.Type headerType, int headerSize, Buffers.Type bufferType, int bufferSize)
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32 {
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33 _headerType=headerType;
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34 _headerSize=headerSize;
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35 _bufferType=bufferType;
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36 _bufferSize=bufferSize;
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37 }
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38
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39 /* ------------------------------------------------------------ */
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40 /**
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41 * @return Returns the buffer size in bytes.
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42 */
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43 public int getBufferSize()
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44 {
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45 return _bufferSize;
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46 }
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47
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48 /* ------------------------------------------------------------ */
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49 /**
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50 * @return Returns the header size in bytes.
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51 */
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52 public int getHeaderSize()
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53 {
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54 return _headerSize;
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55 }
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56
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57
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58 /* ------------------------------------------------------------ */
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59 /**
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60 * Create a new header Buffer
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61 * @return new Buffer
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62 */
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63 final protected Buffer newHeader()
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64 {
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65 switch(_headerType)
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66 {
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67 case DIRECT:
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68 return new DirectNIOBuffer(_headerSize);
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69 case INDIRECT:
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70 return new IndirectNIOBuffer(_headerSize);
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71 }
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72 throw new IllegalStateException();
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73 }
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74
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75 /* ------------------------------------------------------------ */
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76 /**
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77 * Create a new content Buffer
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78 * @return new Buffer
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79 */
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80 final protected Buffer newBuffer()
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81 {
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82 switch(_bufferType)
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83 {
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84 case DIRECT:
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85 return new DirectNIOBuffer(_bufferSize);
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86 case INDIRECT:
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87 return new IndirectNIOBuffer(_bufferSize);
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88 }
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89 throw new IllegalStateException();
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90 }
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91
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92 /* ------------------------------------------------------------ */
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93 /**
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94 * Create a new content Buffer
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95 * @param size
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96 * @return new Buffer
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97 */
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98 final protected Buffer newBuffer(int size)
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99 {
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100 switch(_bufferType)
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101 {
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102 case DIRECT:
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103 return new DirectNIOBuffer(size);
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104 case INDIRECT:
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105 return new IndirectNIOBuffer(size);
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106 }
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107 throw new IllegalStateException();
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108 }
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109
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110 /* ------------------------------------------------------------ */
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111 /**
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112 * @param buffer
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113 * @return True if the buffer is the correct type to be a Header buffer
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114 */
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115 public final boolean isHeader(Buffer buffer)
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116 {
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117 if (buffer.capacity()==_headerSize)
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118 {
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119 switch(_headerType)
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120 {
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121 case DIRECT:
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122 return buffer instanceof DirectNIOBuffer;
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123 case INDIRECT:
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124 return buffer instanceof IndirectNIOBuffer;
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125 }
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126 }
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127 return false;
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128 }
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129
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130 /* ------------------------------------------------------------ */
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131 /**
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132 * @param buffer
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133 * @return True if the buffer is the correct type to be a Header buffer
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134 */
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135 public final boolean isBuffer(Buffer buffer)
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136 {
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137 if (buffer.capacity()==_bufferSize)
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138 {
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139 switch(_bufferType)
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140 {
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141 case DIRECT:
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142 return buffer instanceof DirectNIOBuffer;
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143 case INDIRECT:
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144 return buffer instanceof IndirectNIOBuffer;
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145 }
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146 }
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147 return false;
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148 }
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149
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150 /* ------------------------------------------------------------ */
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151 public String toString()
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152 {
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153 return String.format("%s [%d,%d]", getClass().getSimpleName(), _headerSize, _bufferSize);
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154 }
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155 }