optionsconsolecommand.java

java 文件下载器。可自定义

// Decompiled by Jad v1.5.8e2. Copyright 2001 Pavel Kouznetsov.
// Jad home page: http://kpdus.tripod.com/jad.html
// Decompiler options: packimports(3) fieldsfirst ansi space 
// Source File Name:   OptionsConsoleCommand.java

package org.gudy.azureus2.ui.console.commands;

import java.io.PrintStream;
import java.io.PrintWriter;
import java.util.Iterator;
import java.util.List;
import org.apache.commons.cli.*;
import org.gudy.azureus2.ui.console.ConsoleInput;

// Referenced classes of package org.gudy.azureus2.ui.console.commands:
//			IConsoleCommand

public abstract class OptionsConsoleCommand extends IConsoleCommand
{

	private Options options;
	private CommandLineParser parser;

	public OptionsConsoleCommand(String main_name)
	{
		super(main_name);
		options = new Options();
		parser = null;
	}

	public OptionsConsoleCommand(String main_name, String short_name)
	{
		super(main_name, short_name);
		options = new Options();
		parser = null;
	}

	public void execute(String commandName, ConsoleInput console, List arguments)
	{
		CommandLineParser parser = getParser();
		try
		{
			String args[] = new String[arguments.size()];
			int i = 0;
			for (Iterator iter = arguments.iterator(); iter.hasNext();)
			{
				String arg = (String)iter.next();
				args[i++] = arg;
			}

			CommandLine line = parser.parse(getOptions(), args);
			execute(commandName, console, line);
		}
		catch (ParseException e)
		{
			console.out.println((new StringBuilder()).append(">> Invalid arguments: ").append(e.getMessage()).toString());
			printHelp(console.out, arguments);
		}
	}

	public void printHelpExtra(PrintStream out, List args)
	{
		HelpFormatter formatter = new HelpFormatter();
		PrintWriter writer = new PrintWriter(out);
		writer.println("> -----");
		writer.println(getCommandDescriptions());
		formatter.printOptions(writer, 80, getOptions(), 4, 4);
		writer.println("> -----");
		writer.flush();
	}

	public abstract void execute(String s, ConsoleInput consoleinput, CommandLine commandline);

	protected CommandLineParser getParser()
	{
		if (parser == null)
			parser = new PosixParser();
		return parser;
	}

	protected Options getOptions()
	{
		return options;
	}
}