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Java Source Code / Java Documentation » Sevlet Container » tomcat jasper2 » org.apache.jasper.xmlparser 
Source Cross Reference  Class Diagram Java Document (Java Doc) 


java.lang.Object
   java.io.Reader
      org.apache.jasper.xmlparser.ASCIIReader

ASCIIReader
public class ASCIIReader extends Reader (Code)
A simple ASCII byte reader. This is an optimized reader for reading byte streams that only contain 7-bit ASCII characters.
author:
   Andy Clark, IBM
version:
   $Id: ASCIIReader.java,v 1.3 2004/03/17 19:23:05 luehe Exp $


Field Summary
final public static  intDEFAULT_BUFFER_SIZE
     Default byte buffer size (2048).
protected  byte[]fBuffer
     Byte buffer.
protected  InputStreamfInputStream
     Input stream.

Constructor Summary
public  ASCIIReader(InputStream inputStream, int size)
     Constructs an ASCII reader from the specified input stream and buffer size.

Method Summary
public  voidclose()
     Close the stream.
public  voidmark(int readAheadLimit)
     Mark the present position in the stream.
public  booleanmarkSupported()
     Tell whether this stream supports the mark() operation.
public  intread()
     Read a single character.
public  intread(char ch, int offset, int length)
     Read characters into a portion of an array.
public  booleanready()
     Tell whether this stream is ready to be read. True if the next read() is guaranteed not to block for input,false otherwise.
public  voidreset()
     Reset the stream.
public  longskip(long n)
     Skip characters.

Field Detail
DEFAULT_BUFFER_SIZE
final public static int DEFAULT_BUFFER_SIZE(Code)
Default byte buffer size (2048).



fBuffer
protected byte[] fBuffer(Code)
Byte buffer.



fInputStream
protected InputStream fInputStream(Code)
Input stream.




Constructor Detail
ASCIIReader
public ASCIIReader(InputStream inputStream, int size)(Code)
Constructs an ASCII reader from the specified input stream and buffer size.
Parameters:
  inputStream - The input stream.
Parameters:
  size - The initial buffer size.




Method Detail
close
public void close() throws IOException(Code)
Close the stream. Once a stream has been closed, further read(), ready(), mark(), or reset() invocations will throw an IOException. Closing a previously-closed stream, however, has no effect.
exception:
  IOException - If an I/O error occurs



mark
public void mark(int readAheadLimit) throws IOException(Code)
Mark the present position in the stream. Subsequent calls to reset() will attempt to reposition the stream to this point. Not all character-input streams support the mark() operation.
Parameters:
  readAheadLimit - Limit on the number of characters that may beread while still preserving the mark. Afterreading this many characters, attempting toreset the stream may fail.
exception:
  IOException - If the stream does not support mark(),or if some other I/O error occurs



markSupported
public boolean markSupported()(Code)
Tell whether this stream supports the mark() operation.



read
public int read() throws IOException(Code)
Read a single character. This method will block until a character is available, an I/O error occurs, or the end of the stream is reached.

Subclasses that intend to support efficient single-character input should override this method. The character read, as an integer in the range 0 to 127(0x00-0x7f), or -1 if the end of the stream hasbeen reached
exception:
  IOException - If an I/O error occurs




read
public int read(char ch, int offset, int length) throws IOException(Code)
Read characters into a portion of an array. This method will block until some input is available, an I/O error occurs, or the end of the stream is reached.
Parameters:
  ch - Destination buffer
Parameters:
  offset - Offset at which to start storing characters
Parameters:
  length - Maximum number of characters to read The number of characters read, or -1 if the end of thestream has been reached
exception:
  IOException - If an I/O error occurs



ready
public boolean ready() throws IOException(Code)
Tell whether this stream is ready to be read. True if the next read() is guaranteed not to block for input,false otherwise. Note that returning false does not guarantee that thenext read will block.
exception:
  IOException - If an I/O error occurs



reset
public void reset() throws IOException(Code)
Reset the stream. If the stream has been marked, then attempt to reposition it at the mark. If the stream has not been marked, then attempt to reset it in some way appropriate to the particular stream, for example by repositioning it to its starting point. Not all character-input streams support the reset() operation, and some support reset() without supporting mark().
exception:
  IOException - If the stream has not been marked,or if the mark has been invalidated,or if the stream does not support reset(),or if some other I/O error occurs



skip
public long skip(long n) throws IOException(Code)
Skip characters. This method will block until some characters are available, an I/O error occurs, or the end of the stream is reached.
Parameters:
  n - The number of characters to skip The number of characters actually skipped
exception:
  IOException - If an I/O error occurs



Fields inherited from java.io.Reader
protected Object lock(Code)(Java Doc)

Methods inherited from java.io.Reader
abstract public void close() throws IOException(Code)(Java Doc)
public void mark(int readAheadLimit) throws IOException(Code)(Java Doc)
public boolean markSupported()(Code)(Java Doc)
public int read(java.nio.CharBuffer target) throws IOException(Code)(Java Doc)
public int read() throws IOException(Code)(Java Doc)
public int read(char cbuf) throws IOException(Code)(Java Doc)
abstract public int read(char cbuf, int off, int len) throws IOException(Code)(Java Doc)
public boolean ready() throws IOException(Code)(Java Doc)
public void reset() throws IOException(Code)(Java Doc)
public long skip(long n) throws IOException(Code)(Java Doc)

Methods inherited from java.lang.Object
native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc)
public boolean equals(Object obj)(Code)(Java Doc)
protected void finalize() throws Throwable(Code)(Java Doc)
final native public Class getClass()(Code)(Java Doc)
native public int hashCode()(Code)(Java Doc)
final native public void notify()(Code)(Java Doc)
final native public void notifyAll()(Code)(Java Doc)
public String toString()(Code)(Java Doc)
final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc)
final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc)
final public void wait() throws InterruptedException(Code)(Java Doc)

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