wavycmd.java

java实现的数据通信的八种编码方式（AMIcode码

/**
 * Pxb dc Tool 
 * Copyright (C) 2008 Panxiaobo.
 * $Id: WavyCmd.java 2 2008-10-15 12:07:18Z Panxiaobo $
 */
package pxb.dc;

import java.awt.Color;
import java.awt.Graphics2D;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.FileOutputStream;
import java.io.OutputStream;
import java.io.PrintStream;

import javax.imageio.ImageIO;

import pxb.cmd.AbstractCmd;

/**
 * @author Panxiaobo [[e-mail]]
 */
public class WavyCmd extends AbstractCmd
{
	// 信号量
	protected int		signals[];

	//
	protected Code[]	codes;
	protected File		file;
	protected int		width	= 310;
	protected int		height	= 310;
	protected String	type	= "png";

	@Override
	protected boolean checkArgs(String[] args, PrintStream out)
	{
		if (args.length < 3)
		{
			return false;
		}
		// 0
		String codes_string = args[0];
		String signals_string = args[1];
		String codes_array[] = codes_string.split(",");
		this.codes = new Code[codes_array.length];
		try
		{
			for (int i = 0; i < codes.length; i++)
				codes[i] = (Code) this.instanceClass(codes_array[i]);
		} catch (Exception e)
		{
			out.println("Error while instance codes :" + e.getMessage());
			return false;
		}
		// 1
		byte[] signals_byte = signals_string.getBytes();
		this.signals = new int[signals_byte.length];
		for (int i = 0; i < signals.length; i++)
			this.signals[i] = signals_byte[i] == '1' ? 1 : 0;

		// 2
		file = new File(args[2]);
		if (!file.exists())
		{
			File par = file.getParentFile();
			if (par == null)
				file = new File(System.getProperty("user.dir")
						+ java.io.File.separator + args[2]);
			else
			{
				par.mkdirs();
			}
		}
		if (args.length > 3)
		{
			// 3
			width = Integer.valueOf(args[3]);
		}
		if (args.length > 4)
		{
			// 4
			height = Integer.valueOf(args[4]);
		}
		if (args.length > 5)
		{
			// 5
			type = args[5];
		} else
		{
			String name = args[2];
			int x = name.lastIndexOf('.');
			if (x > -1)
			{
				type = name.substring(x + 1, name.length());
			}
		}
		out.println("type:" + type);
		return super.checkArgs(args, out);
	}

	@Override
	protected void doExecute(String[] args, PrintStream out)
	{

		// init start
		DefaultPainter painter = new DefaultPainter();
		painter.setCodes(codes);
		painter.setSignals(signals);
		for (Code code : codes)
		{
			code.setSignals(signals);
		}

		BufferedImage image = new BufferedImage(width, height,
				BufferedImage.TYPE_INT_RGB);
		Graphics2D graphics = image.createGraphics();
		graphics.setBackground(Color.WHITE);
		graphics.fillRect(0, 0, width, height);
		graphics.setColor(Color.BLACK);
		painter.paint(graphics, 10, 10, width - 10, height - 10);

		try
		{
			OutputStream os = new FileOutputStream(file);
			ImageIO.write(image, type, os);
			os.close();
			out.println("Done!");
		} catch (Exception e)
		{
			out.println("Error While Saving File:" + e.getMessage());
		}
	}

	@Override
	public String[] getExamples()
	{
		return new String[] { "Wavy Default 001100 a.jpg 310 310 jpg",
				"Wavy Default,AMI 001100 a.jpg 310 310 jpg",
				"Wavy Default,AMI 001100 a.jpg",
				"Wavy Default,AMI 001100 a.png" };
	}

	@Override
	public String getName()
	{
		return "Pxb DC Wavy CUI Tool";
	}

	@Override
	public String[] getUsages()
	{
		return new String[] { "Wavy code[,code...] signal file [height weight type]" };
	}

	@Override
	public String getVersion()
	{
		return "$Id: WavyCmd.java 2 2008-10-15 12:07:18Z Panxiaobo $";
	}

	protected Object instanceClass(String name) throws Exception
	{
		Class<?> type = null;
		try
		{
			type = Class.forName(name);
		} catch (ClassNotFoundException e)
		{
			String packageName = WavyCmd.class.getPackage().getName();
			try
			{
				type = Class.forName(packageName + "." + name + "Code");
			} catch (Exception ex)
			{
			}
		}
		if (type == null)
		{
			throw new RuntimeException("NoClassFoundException:" + name);
		}
		return type.newInstance();
	}

}