import java.io.File;
import java.util.Date;
import java.io.FileInputStream;
import java.io.ObjectInputStream;
import java.io.IOException;

public class ScanLog
{
	File f;
	ObjectInputStream objectInputStream;

	public ScanLog( String f)
	{
		this.f=new File(f);

		try
		{
			objectInputStream=new ObjectInputStream(new FileInputStream(f));
			}
		catch (IOException ex)
		{
			System.out.println(ex.getMessage());
			}
		}

	public void user (String u)
	{
		Entry e;
		try
		{
			e=(Entry)objectInputStream.readObject();
			while (true)
			{
				if(e.id.equals(u))
				{
					System.out.println(e.date);
					System.out.println(e.id);
					System.out.println(e.comment);
					System.out.println("***********************");
					}
				e=(Entry)objectInputStream.readObject();
				}
			}

		catch(IOException ex)
		{
			//System.out.println(ex.getMessage());
			ex.printStackTrace();
			}

		catch (ClassNotFoundException exc)
		{
			System.out.println(exc.getMessage());
			}
		}

	public void before (Date d)
	{
		Entry e;
		try
		{
			e=(Entry)objectInputStream.readObject();
			while (true)
			{
				if(e.date.before(d))
				{
					System.out.println(e.date);
					System.out.println(e.id);
					System.out.println(e.comment);
					System.out.println("***********************");
					}
				e=(Entry)objectInputStream.readObject();
				}
			}

		catch(IOException ex)
		{
			System.out.println(ex.getMessage());
			//ex.printStackTrace();
			}

		catch (ClassNotFoundException exc)
		{
			System.out.println(exc.getMessage());
			}
		}

	public void after (Date d)
	{
		Entry e;
		try
		{
			e=(Entry)objectInputStream.readObject();
			while (true)
			{
				if(e.date.after(d))
				{
					System.out.println(e.date);
					System.out.println(e.id);
					System.out.println(e.comment);
					System.out.println("***********************");
					}
				e=(Entry)objectInputStream.readObject();
				}
			}

		catch(IOException ex)
		{
			System.out.println(ex.getMessage());
			//ex.printStackTrace();
			}

		catch (ClassNotFoundException exc)
		{
			System.out.println(exc.getMessage());
			}
		}

	public void close()
	{
		try
		{
			objectInputStream.close();
			}

		catch(IOException ex)
		{
			System.out.println(ex.getMessage());
			}
		}
	}