Difference between revisions of "Sudoku Generator (Example for the OSGi Lab)"

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(Created page with '== Sudoku Generator (Example for the OSGi Lab) == This is my first attempt to build a simple Java application using the OSGi framework. Some time ago I wrote a Sudoku Generator …')
 
(→‎Sudoku Generator (Example for the OSGi Lab))
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Yes, I know my code (and lack of documentation) is sloppy. That's because I tried to focus on trying to figure out what goes into each bundle. I'm sure I got many things wrong but on the positive side, the code works and actually generates a 9x9 Sudoku puzzle, albeit on the console in text mode. Perhaps in the future I'll produce a GUI output - or maybe someone can do it for me?
 
Yes, I know my code (and lack of documentation) is sloppy. That's because I tried to focus on trying to figure out what goes into each bundle. I'm sure I got many things wrong but on the positive side, the code works and actually generates a 9x9 Sudoku puzzle, albeit on the console in text mode. Perhaps in the future I'll produce a GUI output - or maybe someone can do it for me?
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 +
== Design and Implementation ==
 +
 +
First, let me say that I followed Jordan's Voting System example, for both the code as well as the writeup on this wiki.
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 +
<h4>1. Define the Service</h4>
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Create the bundle ''ca.on.senecac.scs.sudoku''
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<h6>1.1 Create SudokuGenerator.java</h6>
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<source lang="java">
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package ca.on.senecac.scs.sudoku;
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/**
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* Defines the interface to the Sudoku Generator OSGi-based
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* application.
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*
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* @author John Selmys
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*
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*/
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public interface SudokuGenerator {
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    void generate(int row, int col);
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}
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</source>
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<h6>1.2 Define the MANIFEST.MF for the service</h6>
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<source lang="xml">
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Manifest-Version: 1.0
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Bundle-ManifestVersion: 2
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Bundle-Name: Sudoku
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Bundle-SymbolicName: ca.on.senecac.scs.sudoku
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Bundle-Version: 1.0.0.qualifier
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Bundle-RequiredExecutionEnvironment: JavaSE-1.6
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Export-Package: ca.on.senecac.scs.sudoku
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</source>

Revision as of 19:02, 13 February 2011

Sudoku Generator (Example for the OSGi Lab)

This is my first attempt to build a simple Java application using the OSGi framework.

Some time ago I wrote a Sudoku Generator program using BASH version 4. You can find the code on my blog at selmys.wordpress.com. I've chosen this same example to rewrite in Java/OSGi.

Yes, I know my code (and lack of documentation) is sloppy. That's because I tried to focus on trying to figure out what goes into each bundle. I'm sure I got many things wrong but on the positive side, the code works and actually generates a 9x9 Sudoku puzzle, albeit on the console in text mode. Perhaps in the future I'll produce a GUI output - or maybe someone can do it for me?

Design and Implementation

First, let me say that I followed Jordan's Voting System example, for both the code as well as the writeup on this wiki.

1. Define the Service

Create the bundle ca.on.senecac.scs.sudoku

1.1 Create SudokuGenerator.java
package ca.on.senecac.scs.sudoku;

/**
 * Defines the interface to the Sudoku Generator OSGi-based
 * application.
 *
 * @author John Selmys
 *
 */
public interface SudokuGenerator {
    void generate(int row, int col);
}
1.2 Define the MANIFEST.MF for the service
Manifest-Version: 1.0
Bundle-ManifestVersion: 2
Bundle-Name: Sudoku
Bundle-SymbolicName: ca.on.senecac.scs.sudoku
Bundle-Version: 1.0.0.qualifier
Bundle-RequiredExecutionEnvironment: JavaSE-1.6
Export-Package: ca.on.senecac.scs.sudoku
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