Debug.java

package in.lib;

import android.util.Log;

import java.util.Collection;

public class Debug
{
	private static long timeseed = 0L;
	private final static String LOG_TAG = "DEBUG";
	private static boolean DEBUG = true;

	/**
	 * Sets if the app is in debug mode.
	 *
	 * @param inDebug
	 *            If set to true then outputs will be made, else they wont
	 */
	public static void setDebugMode(boolean inDebug)
	{
		DEBUG = inDebug;
	}

	public static void seedTimer()
	{
		timeseed = System.nanoTime();
	}

	public static long tickTimer()
	{
		long newSeed = System.nanoTime();
		long diff = (newSeed - timeseed);
		timeseed = newSeed;
		out("Time: " + (diff / 1000000.0d));
		return diff;
	}

	public static String getCallingStack()
	{
		Throwable fakeException = new Throwable();
		StackTraceElement[] stackTrace = fakeException.getStackTrace();

		if (stackTrace != null && stackTrace.length >= 2)
		{
			String retstr = "";
			int index = 0;
			for (StackTraceElement s : stackTrace)
			{
				if (s != null)
				{
					retstr += index + " : " + s.getFileName() + " from " + s.getMethodName() + " on line " + s.getLineNumber() + "\n";
				}

				index++;
			}

			return retstr;
		}

		return null;
	}

	public static String getCallingMethodInfo()
	{
		Throwable fakeException = new Throwable();
		StackTraceElement[] stackTrace = fakeException.getStackTrace();

		if (stackTrace != null && stackTrace.length >= 2)
		{
			StackTraceElement s = stackTrace[2];
			if (s != null)
			{
				return s.getFileName() + "(" + s.getMethodName() + ":" + s.getLineNumber() + "):";
			}
		}

		return null;
	}

	private static void longInfo(String str)
	{
		if (str.length() > 4000)
		{
			Log.e(LOG_TAG, str.substring(0, 4000));
			longInfo(str.substring(4000));
		}
		else
		{
			Log.e(LOG_TAG, str);
		}
	}

	public static void out(Collection args)
	{
		if (!DEBUG)
			return;

		String output = "";

		for (Object o : args)
		{
			output += String.valueOf(o) + ", ";
		}

		longInfo(getCallingMethodInfo() + " " + output);
	}

	public static void out(Object... args)
	{
		if (!DEBUG)
			return;

		String output = "";

		for (Object o : args)
		{
			output += String.valueOf(o) + ", ";
		}

		longInfo(getCallingMethodInfo() + " " + output);
	}

	public static void out(String str, Object... args)
	{
		if (!DEBUG)
			return;

		longInfo(getCallingMethodInfo() + " " + String.format(str, args));
	}

	public static void out(Object obj)
	{
		if (!DEBUG)
			return;

		longInfo(getCallingMethodInfo() + " " + (obj == null ? "[null]" : String.valueOf(obj)));
	}

	public static void out(Exception obj)
	{
		if (!DEBUG)
			return;

		obj.printStackTrace();
	}
}