org.basex.io
Class BufferInput

java.lang.Object
  org.basex.io.BufferInput

Direct Known Subclasses:

CachedInput, DataInput

public class BufferInput
extends Object

This class serves as a buffered wrapper for input streams.

Author:

Workgroup DBIS, University of Konstanz 2005-10, ISC License, Christian Gruen

Constructor Summary

BufferInput(byte[] buf)
Empty constructor.

BufferInput(File file)
Initializes the file reader.

BufferInput(File file, byte[] buf)
Initializes the file reader.

BufferInput(InputStream is)
Initializes the file reader.

BufferInput(InputStream is, byte[] b)
Initializes the file reader.

BufferInput(String file)
Initializes the file reader.

Method Summary

void	close() Closes the input stream.
void	encoding() Determines the file encoding.
void	encoding(String e) Sets a new encoding.
long	length() Length of input.
void	length(long l) Sets the input length.
int	read() Reads a single byte and returns it as integer.
static void	read(File file, byte[] cont) Fills the specified array with the beginning of the specified file.
byte	readByte() Returns the next byte or 0 if all bytes have been read.
int	readChar() Returns the next character, 0 if all bytes have been read or a negative character value -1 if the read byte is invalid.
String	readString() Reads a string from the input stream.
int	size() Number of read bytes.

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

BufferInput

public BufferInput(String file)
            throws IOException

Initializes the file reader.

Parameters:

file - the file to be read

Throws:

IOException - IO Exception

BufferInput

public BufferInput(File file)
            throws IOException

Initializes the file reader.

Parameters:

file - the file to be read

Throws:

IOException - IO Exception

BufferInput

public BufferInput(InputStream is)
            throws IOException

Initializes the file reader.

Parameters:

is - input stream

Throws:

IOException - IO Exception

BufferInput

public BufferInput(File file,
                   byte[] buf)
            throws IOException

Initializes the file reader.

Parameters:

file - the file to be read

buf - input buffer

Throws:

IOException - IO Exception

BufferInput

public BufferInput(InputStream is,
                   byte[] b)
            throws IOException

Initializes the file reader.

Parameters:

is - input stream

b - input buffer

Throws:

IOException - IO Exception

BufferInput

public BufferInput(byte[] buf)

Empty constructor.

Parameters:

buf - buffer

Method Detail

read

public static void read(File file,
                        byte[] cont)
                 throws IOException

Fills the specified array with the beginning of the specified file.

Parameters:

file - the file to be read

cont - byte array

Throws:

IOException - IO Exception

encoding

public final void encoding()

Determines the file encoding.

encoding

public final void encoding(String e)
                    throws IOException

Sets a new encoding.

Parameters:

e - encoding

Throws:

IOException - IO Exception

read

public final int read()
               throws IOException

Reads a single byte and returns it as integer.

Returns:

read byte

Throws:

IOException - I/O exception

readByte

public byte readByte()
              throws IOException

Returns the next byte or 0 if all bytes have been read.

Returns:

next byte

Throws:

IOException - I/O exception

readString

public String readString()
                  throws IOException

Reads a string from the input stream.

Returns:

string

Throws:

IOException - IO Exception

readChar

public final int readChar()
                   throws IOException

Returns the next character, 0 if all bytes have been read or a negative character value -1 if the read byte is invalid.

Returns:

next character

Throws:

IOException - I/O exception

close

public final void close()
                 throws IOException

Closes the input stream.

Throws:

IOException - IO Exception

size

public final int size()

Number of read bytes.

Returns:

read bytes

length

public final long length()

Length of input.

Returns:

read bytes

length

public final void length(long l)

Sets the input length.

Parameters:

l - input length