import android.os.Environment;
import android.util.Log;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.PrintWriter;
import java.io.StringWriter;
import java.io.Writer;
import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.Date;
public class LOG {
private static final int LEVEL_I = 1;
private static final int LEVEL_D = 2;
private static final int LEVEL_W = 3;
private static final int LEVEL_E = 4;
private static final String FILEPATH = "/folderPath";
private static final String FILENAME = "log.txt";
private static DateFormat formatter = new SimpleDateFormat("yyyy-MM-dd-HH-mm-ss");
public static void logD(String msg) {
log(LEVEL_D, msg);
}
public static void logI(String msg) {
log(LEVEL_I, msg);
}
public static void logW(String msg) {
log(LEVEL_W, msg);
}
public static void logE(String msg) {
log(LEVEL_E, msg);
}
public static void logE(Throwable ex) {
if (!AppConstants.DEBUG) {
return;
}
Writer writer = new StringWriter();
PrintWriter printWriter = new PrintWriter(writer);
ex.printStackTrace(printWriter);
Throwable cause = ex.getCause();
while (cause != null) {
cause.printStackTrace(printWriter);
cause = cause.getCause();
}
printWriter.close();
String result = writer.toString();
final Throwable t = AppConstants.DEBUG ? new Throwable() : null;
final StackTraceElement[] elements = t != null ? t.getStackTrace() : null;
String callerClassName = t != null ? elements[2].getClassName() : "N/A";
int pos = callerClassName.lastIndexOf('.');
if (pos >= 0) {
callerClassName = callerClassName.substring(pos + 1);
}
final String tag = callerClassName;
Log.e(tag, result);
try {
write(tag, result);
} catch (IOException e) {
e.printStackTrace();
}
}
private static void log(int level, String msg) {
if (!AppConstants.DEBUG) {
return;
}
final Throwable t = AppConstants.DEBUG ? new Throwable() : null;
final StackTraceElement[] elements = t != null ? t.getStackTrace() : null;
String callerClassName = t != null ? elements[2].getClassName() : "N/A";
String callerMethodName = t != null ? elements[2].getMethodName() : "N/A";
int pos = callerClassName.lastIndexOf('.');
if (pos >= 0) {
callerClassName = callerClassName.substring(pos + 1);
}
final String tag = callerClassName;
final StringBuffer buf = new StringBuffer();
buf.append("[").append(callerMethodName).append("] ").append(msg);
switch (level) {
case LEVEL_I:
Log.i(tag, buf.toString());
break;
case LEVEL_D:
Log.d(tag, buf.toString());
break;
case LEVEL_W:
Log.w(tag, buf.toString());
break;
case LEVEL_E:
Log.e(tag, buf.toString());
break;
default:
break;
}
try {
write(tag, buf.toString());
} catch (IOException e) {
e.printStackTrace();
}
}
private static void write(String tag, String log) throws IOException {
String time = formatter.format(new Date(System.currentTimeMillis()));
String logger = time + ">>>>>" + tag + ">>>>>" + ">>>>>" + log + "\n\n";
if (Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED)) {
File dir = Environment.getExternalStorageDirectory();
File file = new File(dir, FILEPATH);
if (!file.exists()) {
file.mkdirs();
}
FileOutputStream fos = new FileOutputStream(file + "/" + FILENAME, true);
fos.write(logger.getBytes());
fos.close();
}
}
}