Here is HauteLook’s logger class from our Android Code Library. It displays class name, method name and line number per line of log message.
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package
com.hautelook.android.lib.logger;
/**
* @authorjimmy@hautelook.com
* @copyright 2011 HauteLook
*
* Description:
* Simple logger that displays: class name, method name and line number
*
*
* Usage:
*
* Use this class directly or customize it by extending it.
*
* HLlog.i("");
* HLLog.i("called");
* HLLog.i("called","tag");
*
* L.i();
* L.i("called");
* L.i("called","tag");
*
* Sub-classing example:
*
* // C.DEBUG = boolean true/false (project specific constant class)
*
* public class L extends HLLog {
*
* public static String DEFAULT_TAG = "HauteLook";
*
* public static void i() {
* if(C.DEBUG) callLogger("i", DEFAULT_TAG, "");
* }
*
* public static void i(String message) {
* if(C.DEBUG) callLogger("i", DEFAULT_TAG, message);
* }
*
* public static void i(String message, String tag) {
* if(C.DEBUG) callLogger("i", tag, message);
* }
*
* }
*
*/
import
java.lang.reflect.InvocationTargetException;
import
java.lang.reflect.Method;
import
android.util.Log;
@SuppressWarnings
(
"unused"
)
publicclass HLLog {
publicstatic String DEFAULT_TAG =
"HauteLookLib"
;
finalstaticintdepth =
4
;
publicstaticvoid i(String message) {
callLogger(
"i"
, DEFAULT_TAG, message);
}
publicstaticvoid i(String message, String tag) {
callLogger(
"i"
, tag, message);
}
publicstaticvoid d(String message) {
callLogger(
"d"
, DEFAULT_TAG, message);
}
publicstaticvoid d(String message, String tag) {
callLogger(
"d"
, tag, message);
}
publicstaticvoid e(String message) {
callLogger(
"e"
, DEFAULT_TAG, message);
}
publicstaticvoid e(String message, String tag) {
callLogger(
"e"
, tag, message);
}
publicstaticvoid w(String message) {
callLogger(
"w"
, DEFAULT_TAG, message);
}
publicstaticvoid w(String message, String tag) {
callLogger(
"w"
, tag, message);
}
publicstaticvoid v(String message) {
callLogger(
"v"
, DEFAULT_TAG, message);
}
publicstaticvoid v(String message, String tag) {
callLogger(
"v"
, tag, message);
}
@SuppressWarnings
(
"rawtypes"
)
publicstaticvoid callLogger(String methodName, String tag, String message) {
final
StackTraceElement[] ste = Thread.currentThread().getStackTrace();
try
{
Class cls = Class.forName(
"android.util.Log"
);
Method method = cls.getMethod(methodName, String.
class
, String.
class
);
method.invoke(
null
, tag, getTrace(ste) + message);
}
catch
(ClassNotFoundException e) {
e.printStackTrace();
}
catch
(IllegalArgumentException e) {
e.printStackTrace();
}
catch
(SecurityException e) {
e.printStackTrace();
}
catch
(IllegalAccessException e) {
e.printStackTrace();
}
catch
(InvocationTargetException e) {
e.printStackTrace();
}
catch
(NoSuchMethodException e) {
e.printStackTrace();
}
}
publicstatic String getTrace(StackTraceElement[] ste) {
return
"["
+ getClassName(ste) +
"]["
+ getMethodName(ste) +
"]["
+ getLineNumber(ste) +
"] "
;
}
publicstatic String getClassPackage(StackTraceElement[] ste) {
return
ste[depth].getClassName();
}
publicstatic String getClassName(StackTraceElement[] ste) {
String[] temp = ste[depth].getClassName().split(
"\\."
);
return
temp[temp.length -
1
];
}
publicstatic String getMethodName(StackTraceElement[] ste) {
return
ste[depth].getMethodName();
}
publicstaticint getLineNumber(StackTraceElement[] ste) {
return
ste[depth].getLineNumber();
}
}
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