org.thegalactic.context.io

Class ContextSerializerBurmeister

java.lang.Object

org.thegalactic.context.io.ContextSerializerBurmeister

All Implemented Interfaces:

Reader<Context>, Writer<Context>

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

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

Method Summary

Modifier and Type	Method and Description
static ContextSerializerBurmeister	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 .cxt 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 ContextSerializerBurmeister getInstance()

Return the singleton instance of this class.

Returns:

the singleton instance

register

public static void register()

Register this class for reading and writing .cxt files.

read

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

Read a context from a file.

The Burmeister cxt format file is respected :

The file format is structured as follows:

The first line consists of a single “B” The second line contains the name of the context (note that this is ignored) The third and fourth line consist of the object and attribute count, respectively after that, all objects and all attributes are listed, each on a separate line finally, the context is given as a combination of . and X, each row on a separate line.

B
Example
2
2
a
b
1
2
.X
XX

Specified by:

read in interface Reader<Context>

Parameters:

context - a context to read

file - a file

Throws:

IOException - When an IOException occurs

write

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

Write a context to a file.

The Burmeister cxt format file is respected :

The file format is structured as follows:

The first line consists of a single “B” The second line contains the name of the context (note that this is ignored) The third and fourth line consist of the object and attribute count, respectively. The fifth line is empty. After that, all objects and all attributes are listed, each on a separate line finally, the context is given as a combination of . and X, each row on a separate line.

B
Example
2
2

a
b
1
2
.X
XX

Specified by:

write in interface Writer<Context>

Parameters:

context - a context to write

file - a file

Throws:

IOException - When an IOException occurs