Some cleanup, refactoring of EssentialsHelp class

EssentialsUpdate/src/com/earth2me/essentials/update/chat/ErrorsCommand.java

@@ -0,0 +1,71 @@
+package com.earth2me.essentials.update.chat;
+
+import java.io.BufferedReader;
+import java.io.IOException;
+import java.util.logging.Level;
+import java.util.regex.Pattern;
+import org.bukkit.Bukkit;
+import org.bukkit.entity.Player;
+import org.bukkit.plugin.Plugin;
+
+
+public class ErrorsCommand extends AbstractFileCommand implements Command
+{
+	private final transient Pattern pattern = Pattern.compile("^[0-9 :-]+\\[INFO\\].*");
+
+	public ErrorsCommand(final Plugin plugin)
+	{
+		super(plugin);
+	}
+
+	@Override
+	public void run(final IrcBot ircBot, final Player player)
+	{
+		BufferedReader page = null;
+		try
+		{
+			page = getServerLogReader();
+			final StringBuilder input = new StringBuilder();
+			do
+			{
+				final String line = page.readLine();
+				if (line == null)
+				{
+					break;
+				}
+				else
+				{
+					if (!pattern.matcher(line).matches())
+					{
+						input.append(line).append("\n");
+					}
+				}
+			}
+			while (true);
+			page.close();
+			final String message = "Errors: " + uploadToPastie(input);
+			player.sendMessage("§6" + ircBot.getNick() + ": §7" + message);
+			ircBot.sendMessage(message);
+		}
+		catch (IOException ex)
+		{
+			Bukkit.getLogger().log(Level.SEVERE, null, ex);
+			player.sendMessage(ex.getMessage());
+		}
+		finally
+		{
+			try
+			{
+				if (page != null)
+				{
+					page.close();
+				}
+			}
+			catch (IOException ex)
+			{
+				Bukkit.getLogger().log(Level.SEVERE, null, ex);
+				player.sendMessage(ex.getMessage());
+			}
+		}
+	}
+}