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app/src/main/java/com/dinhcv/lifelogpedometer/utils/Debug.java
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package com.dinhcv.lifelogpedometer.utils;
import android.util.Log;
import java.io.PrintWriter;
import java.io.StringWriter;
import java.io.Writer;
import java.lang.Thread.UncaughtExceptionHandler;
import java.util.Locale;
@SuppressWarnings("unused")
public class Debug
{
/*
* define constants for debug mode
*/
private static final int DBG_LEVEL_DBG = 5;
private static final int DBG_LEVEL_NORMAL = 4;
private static final int DBG_LEVEL_WARN = 3;
private static final int DBG_LEVEL_ERROR = 2;
private static final int DBG_LEVEL_FATAL = 1;
/*
* variables
*/
private static final int DEBUG_LEVEL = DBG_LEVEL_NORMAL;
private static final String TAG = "LifeLog";
private static final double MB = 1.0 * 1024 * 1024; // MB
/**
* Hide constructor
*/
private Debug(){
}
private static int getDebugLevel(){
return DEBUG_LEVEL;
}
/**
* Description : Trace fatal message
*
* @param fmt : text message
*/
public static void fatal(String fmt, Object... args)
{
if (getDebugLevel() >= DBG_LEVEL_FATAL)
{
final String stMsg = format("[FATAL]" + fmt, args);
final String stPoint = format(" at %s", getDebugPoint());
Log.e(TAG, "[FATAL]###########################################");
Log.e(TAG, stMsg);
Log.e(TAG, stPoint);
Log.e(TAG, "[FATAL]###########################################");
}
}
/**
* Description : Trace error message
*
* @param args : text message
*/
public static void error(String fmt, Object... args)
{
if (getDebugLevel() >= DBG_LEVEL_ERROR)
{
final String stMsg = format("[ERR]" + fmt, args);
final String stPoint = format(" at %s", getDebugPoint());
Log.e(TAG, stMsg);
Log.e(TAG, stPoint);
}
}
/**
* Description : Trace warning message
*
* @param args : text message
*/
public static void warn(String fmt, Object... args)
{
if (getDebugLevel() >= DBG_LEVEL_WARN)
{
final String stMsg = format("[WRN]" + fmt, args);
final String stPoint = format(" at %s", getDebugPoint());
Log.w(TAG, stMsg);
Log.w(TAG, stPoint);
}
}
/**
* Description : Trace warning message
*
* @param args : text message
*/
public static void dbg(String fmt, Object... args)
{
if (getDebugLevel() >= DBG_LEVEL_DBG)
{
Log.v(TAG, format("[ d ]" + fmt, args));
}
}
/**
* Description : Trace normal message
*
* @param args : text message
*/
public static void normal(String fmt, Object... args)
{
if (getDebugLevel() >= DBG_LEVEL_NORMAL)
{
Log.v(TAG, format("[ - ]" + fmt, args));
}
}
/**
* Description : verify
*
* @param b : Condition assert
*/
@SuppressWarnings("unused")
public static void verify(boolean b) {
if (!(b)) {
final String stMsg = format("###### ASSERT FAILED ######");
final String stPoint = format(" at %s", getDebugPoint());
Log.w(TAG, stMsg);
Log.w(TAG, stPoint);
}
}
/**
* Description : verify
*
* @param b : Condition assert
*/
@SuppressWarnings("unused")
public static void verify(boolean b, String msg) {
if (!(b)) {
final String stMsg = format("###### ASSERT FAILED ######");
final String stPoint = format(" at %s", getDebugPoint());
Log.w(TAG, stMsg);
if (msg != null) {
Log.w(TAG, " msg: " + msg);
}
Log.w(TAG, stPoint);
}
}
/**
* Print Stack trace when exception
* @param e Exception
*/
public static void printStackTrace( Exception e ){
StringWriter sw = new StringWriter();
e.printStackTrace( new PrintWriter(sw) );
String msg = sw.toString();
if (getDebugLevel() >= DBG_LEVEL_ERROR) {
Log.e(TAG, msg);
}
}
/**
* Is debug mode, true for debug mode
* @return DEBUG mode
*/
public static boolean isDebugEnable() {
return DEBUG_LEVEL >= DBG_LEVEL_DBG;
}
/**
* Use to trace current line/file at debug log point
*
* @return The point with the Java's logging default format, so, you can
* double click on the tracing line in the LogCat tool
*/
private static String getDebugPoint()
{
final String fullClassName = Thread.currentThread().getStackTrace()[4].getClassName();
final String className = fullClassName.substring(fullClassName.lastIndexOf(".") + 1);
final String methodName = Thread.currentThread().getStackTrace()[4].getMethodName();
final int lineNumber = Thread.currentThread().getStackTrace()[4].getLineNumber();
//
return format("%s.%s(%s.java:%d)", fullClassName, methodName, className, lineNumber);
}
/**
* Log current status of Heap
*
*/
@SuppressWarnings("unused")
public static void logHeap() {
final String tag = "HEAP";
final Double allocated = android.os.Debug.getNativeHeapAllocatedSize() / MB;
final Double available = android.os.Debug.getNativeHeapSize() / MB;
final Double free = android.os.Debug.getNativeHeapFreeSize() / MB;
final Double memUsed = Runtime.getRuntime().totalMemory() / MB;
final Double memMax = Runtime.getRuntime().maxMemory() / MB;
final Double memFree = Runtime.getRuntime().freeMemory() / MB;
Log.d(tag, format("Heap native: allocated %6.3f MB of %6.3f - free %6.3f MB", allocated, available, free));
Log.d(tag, format("Memory : allocated %6.3f MB of %6.3f - free %6.3f MB", memUsed, memMax, memFree));
}
private static String format(String fmt, Object... args)
{
if ((args != null) && (args.length > 0)) {
return String.format(Locale.US, fmt, args);
}
else {
return fmt;
}
}
/**
* Register a UnExceptionHandler to catch force-close error for thread
*/
public static void registerUnExceptionHandler() {
if(!(Thread.getDefaultUncaughtExceptionHandler() instanceof ExceptionHandler)) {
Thread.setDefaultUncaughtExceptionHandler( new ExceptionHandler() );
}
}
/**
* Trace current stack
*/
@SuppressWarnings("unused")
public static void stackTrace() {
Log.w(TAG, "########### STACK TRACE START #############");
for (final StackTraceElement ste : Thread.currentThread().getStackTrace()) {
System.out.println(ste);
}
Log.w(TAG, "########### STACK TRACE END #############");
}
public static class ExceptionHandler implements UncaughtExceptionHandler {
private final UncaughtExceptionHandler defaultUEH;
/*
* if any of the parameters is null, the respective functionality will
* not be used
*/
public ExceptionHandler() {
this.defaultUEH = Thread.getDefaultUncaughtExceptionHandler();
}
@Override
public void uncaughtException(Thread t, Throwable e) {
final Writer result = new StringWriter();
final PrintWriter printWriter = new PrintWriter(result);
e.printStackTrace(printWriter);
printWriter.close();
defaultUEH.uncaughtException(t, e);
}
}
}
/*******************************************************************************
* End of file
******************************************************************************/
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