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com.opensymphony.module.sitemesh.util
public class: CharArrayReader [javadoc | source]
java.lang.Object
   java.io.Reader
      com.opensymphony.module.sitemesh.util.CharArrayReader

All Implemented Interfaces:
    Closeable, Readable

This class implements a character buffer that can be used as a character-input stream. Modified from the JDK source in that it gets rid of the ensureOpen() method, so we get unexpected behaviour if the reader is closed.

The second modification is that since this class is used internally by FastPageParser in a single thread, we don't need any locking or synchronization. Using this class instead of the standard CharArrayReader improves FastPageParser performance by 15-20%.

Field Summary
protected  char[] buf    The character buffer. 
protected  int pos    The current buffer position. 
protected  int markedPos    The position of mark in buffer. 
protected  int count    The index of the end of this buffer. There is not valid data at or beyond this index. 
Fields inherited from java.io.Reader:
lock
Constructor:
 public CharArrayReader(char[] buf) 
 public CharArrayReader(char[] buf,
    int offset,
    int length) 
Method from com.opensymphony.module.sitemesh.util.CharArrayReader Summary:
close,   mark,   markSupported,   read,   read,   ready,   reset,   skip
Methods from java.io.Reader:
close,   mark,   markSupported,   read,   read,   read,   read,   ready,   reset,   skip
Methods from java.lang.Object:
clone,   equals,   finalize,   getClass,   hashCode,   notify,   notifyAll,   toString,   wait,   wait,   wait
Method from com.opensymphony.module.sitemesh.util.CharArrayReader Detail:
 public  void close() 
    Close the stream.
 public  void mark(int readAheadLimit) throws IOException 
    Mark the present position in the stream. Subsequent calls to reset() will reposition the stream to this point.
 public boolean markSupported() 
    Tell whether this stream supports the mark() operation, which it does.
 public int read() throws IOException 
    Read a single character.
 public int read(char[] b,
    int off,
    int len) throws IOException 
    Read characters into a portion of an array.
 public boolean ready() throws IOException 
    Tell whether this stream is ready to be read. Character-array readers are always ready to be read.
 public  void reset() throws IOException 
    Reset the stream to the most recent mark, or to the beginning if it has never been marked.
 public long skip(long n) throws IOException 
    Skip characters.