File Channels ....................................................................................................................................... 63
Accessing Files ................................................................................................................ 66
File Locking ..................................................................................................................... 70
Example Code Using File Locking ............................................................... 72
Memory Mapped Files ..................................................................................................... 75
Example Code Using MappedByteBuffer and Gathering Writes ......... 79
Channel-To-Channel Transfers ........................................................................................ 83
Socket Channels .................................................................................................................................. 85
Non-Blocking Mode ......................................................................................................... 87
ServerSocketChannel ............................................................................................ 88
SocketChannel ........................................................................................................... 90
DatagramChannel ...................................................................................................... 93
Example DatagramChannel Code .......................................................... 97
Pipes .................................................................................................................................................... 102
The Channels Utility Class ............................................................................................................. 107
Summary ............................................................................................................................................. 108
4Selectors..............................................................................................................................................................
Selector Basics .................................................................................................................................... 112
The Selector, SelectableChannel and SelectionKey Classes ................... 113
Setting Up Selectors ......................................................................................................... 116
Using Selection Keys .......................................................................................................................... 118
Using Selectors .................................................................................................................................... 121
The Selection Process ...................................................................................................... 121
Stopping the Selection Process ........................................................................................ 123
Managing Selection Keys ................................................................................................ 124
Concurrency ..................................................................................................................... 128
Asynchronous Closability ................................................................................................................... 129
Selection Scaling ................................................................................................................................. 129
Summary ............................................................................................................................................. 134
5RegularExpressions............................................................................................................................................
Regular Expression Basics .................................................................................................................. 137
The Java Regular Expression API ....................................................................................................... 138
The CharSequence Interface ...................................................................................... 138
The Pattern Class ........................................................................................................ 140
Splitting Strings With The Pattern Class ................................................. 145
The Matcher Class ........................................................................................................ 148
Regular Expression Methods of the String Class ........................................................................... 159
Java Regular Expression Syntax ......................................................................................................... 160
An Object-Oriented File Grep ............................................................................................................. 163
Summary ............................................................................................................................................. 168
6CharacterSets......................................................................................................................................................
Character Set Basics ............................................................................................................................ 169
Charsets ............................................................................................................................................... 171
The Charset Class ........................................................................................................ 174
Comparing Charsets ......................................................................................................... 176
Charset Encoders .............................................................................................................. 177
The CoderResult Class .................................................................................. 182
Character Encoding Example ....................................................................... 183
Charset Decoders ............................................................................................................. 186
Character Decoding Example ....................................................................... 189
The Charset Service Provider Interface .......................................................................................... 191
Creating Custom Charsets ................................................................................................ 192
Providing Your Custom Charsets .................................................................................... 194
Custom Charset Example ................................................................................................. 196
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