formatcommand.java

来自「纯java操作系统jnode,安装简单和操作简单的个人使用的Java操作系统」· Java 代码 · 共 109 行

/*
 * $Id: FormatCommand.java,v 1.5 2004/02/24 08:03:22 epr Exp $
 */
package org.jnode.fs.command;

import javax.naming.NameNotFoundException;

import org.jnode.driver.Device;
import org.jnode.driver.DeviceManager;
import org.jnode.driver.DeviceNotFoundException;
import org.jnode.driver.DeviceStarter;
import org.jnode.driver.DriverException;
import org.jnode.fs.FileSystemException;
import org.jnode.fs.FileSystemType;
import org.jnode.fs.fat.Fat;
import org.jnode.fs.fat.FatFileSystemType;
import org.jnode.fs.service.FileSystemService;
import org.jnode.naming.InitialNaming;
import org.jnode.shell.help.DeviceArgument;
import org.jnode.shell.help.Help;
import org.jnode.shell.help.OptionArgument;
import org.jnode.shell.help.Parameter;
import org.jnode.shell.help.ParsedArguments;
import org.jnode.shell.help.Syntax;
import org.jnode.util.TimeoutException;

/**
 * @author gbin
 */
public class FormatCommand {
	static final OptionArgument TYPE =
		new OptionArgument(
			"action",
			"Type parameter",
			new OptionArgument.Option[] { new OptionArgument.Option("-t", "Specify fs type")});

	static final OptionArgument FS =
		new OptionArgument(
			"fstype",
			"File system type",
			new OptionArgument.Option[] {
				new OptionArgument.Option("fat16", "FAT 16 filesystem"),
				new OptionArgument.Option("fat12", "FAT 12 filesystem")});

	static final DeviceArgument ARG_DEVICE = new DeviceArgument("device-id", "the device to print informations about");

	static final Parameter PARAM_TYPE = new Parameter(TYPE, Parameter.MANDATORY);
	static final Parameter PARAM_FS = new Parameter(FS, Parameter.MANDATORY);
	static final Parameter PARAM_DEVICE = new Parameter(ARG_DEVICE, Parameter.MANDATORY);

	public static Help.Info HELP_INFO =
		new Help.Info(
			"format",
			new Syntax[] {
				 new Syntax(
					"Format a block device with a specified type",
					new Parameter[] { PARAM_TYPE, PARAM_FS, PARAM_DEVICE })
	});

	public static void main(String[] args) {
		try {
			ParsedArguments cmdLine = HELP_INFO.parse(args);

			String device = ARG_DEVICE.getValue(cmdLine);
			String FSType = FS.getValue(cmdLine).intern();
			String fsTypeName;
			Object params;

			int fatSize = 0;
			if (FSType == "fat16") {
				fatSize = Fat.FAT16;
				fsTypeName = FatFileSystemType.NAME;
				params = new Integer(fatSize);
			} else if (FSType == "fat12") {
				fatSize = Fat.FAT12;
				fsTypeName = FatFileSystemType.NAME;
				params = new Integer(fatSize);
			} else
				throw new FileSystemException("Unsupported FS by format command");

			DeviceManager dm;

			dm = (DeviceManager)InitialNaming.lookup(DeviceManager.NAME);

         Device dev = dm.getDevice(device);
			FileSystemService fileSystemService = (FileSystemService)InitialNaming.lookup(FileSystemService.NAME);
			FileSystemType type = fileSystemService.getFileSystemTypeForNameSystemTypes(fsTypeName);
			type.format(dev, params);
	
         // restart the device
			dev.stop();
			new DeviceStarter(dev).start(dm.getDefaultStartTimeout());

		} catch (NameNotFoundException e) {
			e.printStackTrace();
		} catch (DeviceNotFoundException e) {
			e.printStackTrace();
		} catch (DriverException e) {
			e.printStackTrace();
		} catch (FileSystemException e) {
			// 
			e.printStackTrace();
		} catch (TimeoutException ex) {
            ex.printStackTrace();
        }
	}

}