PaginatedSubcommand.java

package net.bitjump.bukkit.bitlib.commands;

import java.util.List;

import net.bitjump.bukkit.bitlib.util.MessageUtil;

public abstract class PaginatedSubcommand extends Subcommand
{
	protected int pageLength;
	protected int argIndex;
	
	public abstract List<String> getList();
	
	protected void perform() 
	{
		List<String> list = getList();
		
		if(args.length <= 1)
		{
			MessageUtil.paginate(sender, list, 1, pageLength);
		}
		else
		{
			int page;
			int pages = MessageUtil.getPages(list.size(), this.pageLength);
			
			try
			{
				page = Integer.parseInt(args[argIndex]);
			}
			catch(Exception e)
			{
				return;
			}
			
			if(pages < page)
			{
				return;
			}
			
			MessageUtil.paginate(sender, list, page, pageLength);
		}
	}

}