org.thegalactic.context.io

Class ContextSerializerSLF

java.lang.Object

org.thegalactic.context.io.ContextSerializerSLF

All Implemented Interfaces:

Reader<Context>, Writer<Context>

public final class ContextSerializerSLF
extends Object
implements Reader<Context>, Writer<Context>

This class defines the way for reading a context from a slf file.

Method Summary

Modifier and Type	Method and Description
static ContextSerializerSLF	getINSTANCE() Return the singleton INSTANCE of this class.
void	read(Context context, BufferedReader file) Read a context from a file.
static void	register() Register this class for reading and writing .slf files.
void	write(Context context, BufferedWriter file) Write a context to a file.

Methods inherited from class java.lang.Object

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

Method Detail

getINSTANCE

public static ContextSerializerSLF getINSTANCE()

Return the singleton INSTANCE of this class.

Returns:

the singleton INSTANCE

register

public static void register()

Register this class for reading and writing .slf files.

read

public void read(Context context,
                 BufferedReader file)
          throws IOException

Read a context from a file.

The following format is respected:

The number of objects and observation on two separated lines The list of objects on seprated lines The list of attributes on separated lines

then, for each observations, the list of its intent on a line, written like 0 1 0

[Lattice]
2
3
[Objects]
1 2
[Attributes]
a b c
[relation]
0 1 0
1 1 0

Specified by:

read in interface Reader<Context>

Parameters:

context - a context to read

file - a file

Throws:

IOException - When an IOException occurs

To Do#1

use StreamTokenizer

write

public void write(Context context,
                  BufferedWriter file)
           throws IOException

Write a context to a file.

The Standard Lattice Format SLF format file is respected :

The following format is respected:

The number of objects and observation on two separated lines The list of objects on seprated lines The list of attributes on separated lines

then, for each observations, the list of its intent on a line, written like 0 1 0

[Lattice]
2
3
[Objects]
1
2
[Attributes]
a
b
c
[relation]
0 1 0
1 1 0

Specified by:

write in interface Writer<Context>

Parameters:

context - a context to write

file - a file

Throws:

IOException - When an IOException occurs