ecologylab.generic
Class StringInputStream

java.lang.Object
  java.io.InputStream
      ecologylab.generic.StringInputStream

All Implemented Interfaces:

java.io.Closeable

public class StringInputStream
extends java.io.InputStream

A mechanism for reading Strings from java.io.InputStreams of various formats. Used especially in drag and drop, for getting values.

Field Summary

protected java.lang.CharSequence	buffer The string from which bytes are read.
protected int	count The number of valid characters in the input stream buffer.
protected int	pos The index of the next character to read from the input stream buffer.
static int	UTF16
static int	UTF16_BE
static int	UTF16_LE
static int	UTF8

Constructor Summary

StringInputStream(java.lang.CharSequence charSequence)

StringInputStream(java.lang.CharSequence charSequence, int format)
Creates a string input stream to read data from the specified string.

Method Summary

int	available()
int	read() Reads the next byte of data from this input stream.
int	read(byte[] buf, int off, int len)

Methods inherited from class java.io.InputStream

close, mark, markSupported, read, reset, skip

Methods inherited from class java.lang.Object

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

Field Detail

UTF16_LE

public static final int UTF16_LE

See Also:

Constant Field Values

UTF16_BE

public static final int UTF16_BE

See Also:

Constant Field Values

UTF16

public static final int UTF16

See Also:

Constant Field Values

UTF8

public static final int UTF8

See Also:

Constant Field Values

buffer

protected java.lang.CharSequence buffer

The string from which bytes are read.

pos

protected int pos

The index of the next character to read from the input stream buffer.

See Also:

StringBufferInputStream.buffer

count

protected int count

The number of valid characters in the input stream buffer.

See Also:

StringBufferInputStream.buffer

Constructor Detail

StringInputStream

public StringInputStream(java.lang.CharSequence charSequence,
                         int format)

Creates a string input stream to read data from the specified string.

Parameters:

charSequence - the underlying input buffer.

StringInputStream

public StringInputStream(java.lang.CharSequence charSequence)

Method Detail

read

public int read()

Reads the next byte of data from this input stream. The value byte is returned as an int in the range 0 to 255. If no byte is available because the end of the stream has been reached, the value -1 is returned.

The read method of StringBufferInputStream cannot block. It returns the low eight bits of the next character in this input stream's buffer.

Specified by:

read in class java.io.InputStream

Returns:

the next byte of data, or -1 if the end of the stream is reached.

read

public int read(byte[] buf,
                int off,
                int len)

Overrides:

read in class java.io.InputStream

available

public int available()
              throws java.io.IOException

Overrides:

available in class java.io.InputStream

Throws:

java.io.IOException