Better logger class.

Logger

/**
 * This class is an improvement over Log class provided by Android API.
 * Log class by Android API, needs to feed 'TAG' which is generally a class name. In each Log, we
 * have to manually add this. This is the reason this custom Log is created. We may add more features
 * later but right now this is the motivation for creating a custom Log class.
 * <p/>
 */
public class Log {

    /**
     * TAG
     */
    private static final String TAG = Log.class.getSimpleName();

    private static String getMethodName(int hierarchy) {
        final StackTraceElement[] stackTraceElements = new Throwable().getStackTrace();
        if (stackTraceElements != null && stackTraceElements.length > hierarchy) {
            StackTraceElement element = stackTraceElements[hierarchy];
            return element.getMethodName();
        }

        return "";
    }

    private static String getMethodName() {
        return getMethodName(3);
    }

    private static StackTraceElement getLogElement(int hierarchy) {
        final StackTraceElement[] stackTraceElements = new Throwable().getStackTrace();
        if (stackTraceElements != null && stackTraceElements.length > hierarchy) {
            return stackTraceElements[hierarchy];
        }

        return null;
    }

    private static String getClassName(StackTraceElement element) {
        if (element == null) {
            return null;
        }
        final int index = element.getClassName().lastIndexOf(".");
        String tag = "";
        if (index > -1) {
            tag = element.getClassName().substring(index+1);
        }

        return tag;
    }

    public static void debug(String message) {
        final StackTraceElement element = getLogElement(2);

        if (element == null) {
            android.util.Log.e(TAG, "debug : StackTraceElement is NULL");
            return;
        }

        final String TAG = getClassName(element);
        android.util.Log.d(TAG, TAG+">"+element.getMethodName()
                + ">" + element.getLineNumber() + "> " + message);
    }

    public static void d(String TAG, String message) {
        android.util.Log.d(TAG, message);
    }

    /**
     * Created only method logging.
     */
    public static void d() {
        final StackTraceElement element = getLogElement(2);

        if (element == null) {
            android.util.Log.e(TAG, "d : StackTraceElement is NULL");
            return;
        }

        final String TAG = getClassName(element);
        android.util.Log.d(TAG, TAG+">"+element.getMethodName()
                + ">" + element.getLineNumber());
    }

    public static void d(String message) {
        final StackTraceElement element = getLogElement(2);

        if (element == null) {
            android.util.Log.e(TAG, "d : StackTraceElement is NULL");
            return;
        }

        final String TAG = getClassName(element);
        android.util.Log.d(TAG, TAG+">"+element.getMethodName()
                + ">" + element.getLineNumber() + "> " + message);
    }

    public static void warn(String message) {
        final StackTraceElement element = getLogElement(2);

        if (element == null) {
            android.util.Log.e(TAG, "warn : StackTraceElement is NULL");
            return;
        }

        final String TAG = getClassName(element);
        android.util.Log.w(TAG, TAG + ">" + element.getMethodName()
                + ">" + element.getLineNumber() + "> " + message);
    }

    public static void w(String message) {
        final StackTraceElement element = getLogElement(2);

        if (element == null) {
            android.util.Log.e(TAG, "w : StackTraceElement is NULL");
            return;
        }

        final String TAG = getClassName(element);
        android.util.Log.w(TAG, TAG+">"+element.getMethodName()
                + ">" + element.getLineNumber() + "> " + message);
    }

    public static void w(String TAG, String message) {
        android.util.Log.w(TAG, message);
    }

    public static void error(String message) {
        final StackTraceElement element = getLogElement(2);

        if (element == null) {
            android.util.Log.e(TAG, "error : StackTraceElement is NULL");
            return;
        }

        final String TAG = getClassName(element);
        android.util.Log.e(TAG, TAG + ">" + element.getMethodName()
                + ">" + element.getLineNumber() + "> " + message);
    }

    public static void e(String message) {
        final StackTraceElement element = getLogElement(2);

        if (element == null) {
            android.util.Log.e(TAG, "e : StackTraceElement is NULL");
            return;
        }

        final String TAG = getClassName(element);
        android.util.Log.e(TAG, TAG+">"+element.getMethodName()
                + ">" + element.getLineNumber() + "> " + message);
    }

    public static void e(String TAG, String message) {
        android.util.Log.e(TAG, message);
    }

    public static void info(String message) {
        final StackTraceElement element = getLogElement(2);

        if (element == null) {
            android.util.Log.e(TAG, "info : StackTraceElement is NULL");
            return;
        }

        final String TAG = getClassName(element);
        android.util.Log.i(TAG, TAG + ">" + element.getMethodName()
                + ">" + element.getLineNumber() + "> " + message);
    }

    public static void i(String message) {
        final StackTraceElement element = getLogElement(2);

        if (element == null) {
            android.util.Log.e(TAG, "i : StackTraceElement is NULL");
            return;
        }

        final String TAG = getClassName(element);
        android.util.Log.i(TAG, TAG+">"+element.getMethodName()
                + ">" + element.getLineNumber() + "> " + message);
    }

    public static void i(String TAG, String message) {
        android.util.Log.i(TAG, message);
    }
}