gistfile1.java

package stages.two;

import java.io.*;
import java.util.*;

/**
 * @author pxpc2
 */
public class LogMerger
{

	private static FileWriter fstream;
	private static BufferedWriter out;

	public static void main(String...args)
	{
		System.out.println("Log Merger Starting");
		for (int i = 0; i < getFiles(DataValues.PATH).length; i++)
		{
			DataValues.files.add(getFiles(DataValues.PATH)[i]);
			if (DataValues.files.get(i).getName() == DataValues.files.get(i+1).getName())
			{
				if (getTimeInDate(DataValues.files.get(i)).after(getTimeInDate(DataValues.files.get(i+1))))
				{
					List<String> fileOne = getContent(DataValues.files.get(i));
					List<String> fileTwo = getContent(DataValues.files.get(i));

					for (String s : fileOne)
					{
						for (String ss : fileTwo)
						{
							if (s.equals(ss))
							{
								fileTwo.remove(ss);
							}
						}
					}
					try
					{
						fstream = new FileWriter(DataValues.files.get(i));
						out = new BufferedWriter(fstream);
						for (String s : fileTwo)
						{
							out.write(s + "\n");
						}
					}
					catch (Exception e)
					{
						e.printStackTrace();
					}
				}
			}
		}
	}


	// Methods

	private static List<String> getContent(File file)
	{
		List<String> lines = new ArrayList<String>();
		String line = null;
		StringBuilder header = new StringBuilder();
		BufferedReader reader = null;
		try
		{
			reader = new BufferedReader(new FileReader(file));
			while ((line = reader.readLine()) != null)
			{
				if (!line.contains("**** BEGIN"))
				{
					lines.add(line);
				}
			}
			reader.close();
		}
		catch (Exception e)
		{
			e.printStackTrace();
			throw new RuntimeException("Stopping");
		}

		return (lines != null? lines : new ArrayList<String>());
	}

	private File getFile(String path)
	{
		return new File(path+".txt");
	}

	private String getPath(File file)
	{
		return file.getAbsolutePath()+file.getName()+".txt";
	}

	private static File[] getFiles(String path)
	{
		return new File(path).listFiles();
	}

	private static Date getTimeInDate(File file)
	{
		String currentHeader = null;
		StringBuilder header = new StringBuilder();
		BufferedReader reader;
		try
		{
			reader = new BufferedReader(new FileReader(file));
			String currentLine = null;
			while ((currentLine = reader.readLine()) != null)
			{
				if (currentLine.contains("**** BEGIN"))
				{
					currentHeader = currentLine;
				}
			}
			reader.close();
		}
		catch (Exception e)
		{
			e.printStackTrace();
		}

		String day = currentHeader.substring(22,24);
		String month = currentHeader.substring(26, 28);
		int dayOfMonth = Integer.parseInt(currentHeader.substring(30, 31).trim());
		int year = Integer.parseInt(currentHeader.substring(42, 45));

		return convert(day, month, dayOfMonth, year).getTime();
	}
	                                                                  // 30 31     // 42 43 44 45
	public static GregorianCalendar convert(String day, String month, int dayOfMonth, int year){
		GregorianCalendar c = new GregorianCalendar();
		c.set(Calendar.DAY_OF_MONTH, dayOfMonth);
		c.set(Calendar.YEAR, year);
		String[] months = {"Jan","Feb","Mar","Apr","May","Jun","Jul","Aug","Sep","Oct","Nov","Dec"}; // 26, 27, 28
		String[] days = {"Sun","Mon","Tue","Wed","Thu","Fri","Sat"};  // 22, 23, 24
		for(int i = 0; i < months.length; i++){
			if(months[i].toLowerCase().startsWith(month.toLowerCase())){
				c.set(Calendar.MONTH, i);
				break;
			}
		}
		for(int i = 0; i < days.length; i++){
			if(days[i].toLowerCase().startsWith(day.toLowerCase())){
				c.set(Calendar.DAY_OF_WEEK, i);
				break;
			}
		}
		return c;
	}

	public boolean isAfter(GregorianCalendar first, GregorianCalendar second){
		return first.after(second);
	}


	/**
	 * @author pxpc2
	 */
	public static class DataValues
	{
		public static final String PATH =
				(System.getProperty("os.name").contains("Windows") ? "Drew/AppData/Roaming/X-Chat 2/xchatlogs"
						: "Drew/.xchat2/xchatlogs");

		public static ArrayList<File> files = new ArrayList<File>();
	}
}