A Drop in wrapper for Android's Log class which provides compile time exclusion of debug logging statements and format strings to eliminate heavy string building in release builds

Log.java

public class Log  {

    private final String mTag;

    private static String sPrefix;

    public static void setsPrefix(final String prefix) {
        sPrefix = prefix;
    }

    public static String buildTag(final String tag) {
        return sPrefix == null ? tag : sPrefix + ":" + tag;
    }

    public static void d(final String tag, final String message, final Object...args) {
        if (BuildConfig.DEBUG) {
            android.util.Log.d(buildTag(tag), String.format(message, args));
        }
    }

    public static void d(final String tag, final String message, final Throwable tr,  Object...args) {
        if (BuildConfig.DEBUG) {
            android.util.Log.d(buildTag(tag), String.format(message, args), tr);
        }
    }

    public static void v(final String tag, final String message, final Object...args) {
        if (BuildConfig.DEBUG) {
            android.util.Log.v(buildTag(tag), String.format(message, args));
        }
    }

    public static void v(final String tag, final String message, final Throwable tr,  Object...args) {
        if (BuildConfig.DEBUG) {
            android.util.Log.v(buildTag(tag), String.format(message, args), tr);
        }
    }

    public static void i(final String tag, final String message, final Object...args) {
        if (BuildConfig.DEBUG) {
            android.util.Log.i(buildTag(tag), String.format(message, args));
        }
    }

    public static void i(final String tag, final String message, final Throwable tr,  Object...args) {
        if (BuildConfig.DEBUG) {
            android.util.Log.i(buildTag(tag), String.format(message, args), tr);
        }
    }

    public static void e(final String tag, final String message, final Object...args) {
        android.util.Log.e(buildTag(tag), String.format(message, args));
    }

    public static void e(final String tag, final String message, final Throwable tr,  Object...args) {
        android.util.Log.e(buildTag(tag), String.format(message, args), tr);
    }


    public static void w(final String tag, final String message, final Object...args) {
        android.util.Log.w(buildTag(tag), String.format(message, args));
    }

    public static void w(final String tag, final String message, final Throwable tr,  Object...args) {
        android.util.Log.e(buildTag(tag), String.format(message, args), tr);
    }

    public Log(final String tag) {
        mTag = tag;
    }

    public Log(final Class klass) {
        this(klass.getName());
    }

    public void d(final String message, final Object...args) {
        Log.d(mTag, message, args);
    }

    public void d(final String message, final Throwable tr,  Object...args) {
        Log.d(mTag, message, tr, args);
    }

    public void v(final String message, final Object...args) {
        Log.v(mTag, message, args);
    }

    public void v(final String message, final Throwable tr,  Object...args) {
        Log.v(mTag, message, tr, args);
    }

    public void i(final String message, final Object...args) {
        Log.i(mTag, message, args);
    }

    public void i(final String message, final Throwable tr,  Object...args) {
        Log.i(mTag, message, tr, args);
    }

    public void e(final String message, final Object...args) {
        Log.e(mTag, message, args);
    }

    public void e(final String message, final Throwable tr,  Object...args) {
        Log.e(mTag, message, tr, args);
    }

    public void w(final String message, final Object...args) {
        Log.w(mTag, message, args);
    }

    public void w(final String message, final Throwable tr,  Object...args) {
        Log.d(mTag, message, tr, args);
    }

}