/**
* Log日志
*
* @author Jenly
* @date 2014-6-20
*/
public class LogUtils {
public static final String TAG = "Jenly";
private static final String COLON = ":";
private static final String VERTICAL = "|";
/** 是否显示Log日志 */
private static boolean isShowLog = true;
/** Log日志优先权 */
private static int priority = 1;
/**
* Priority constant for the println method;use System.out.println
*/
public static final int PRINTLN = 1;
/**
* Priority constant for the println method; use Log.v.
*/
public static final int VERBOSE = 2;
/**
* Priority constant for the println method; use Log.d.
*/
public static final int DEBUG = 3;
/**
* Priority constant for the println method; use Log.i.
*/
public static final int INFO = 4;
/**
* Priority constant for the println method; use Log.w.
*/
public static final int WARN = 5;
/**
* Priority constant for the println method; use Log.e.
*/
public static final int ERROR = 6;
/**
* Priority constant for the println method.use Log.wtf.
*/
public static final int ASSERT = 7;
public static final String TAG_FORMAT = "%s.%s(L:%d)";
public static void setShowLog(boolean isShowLog) {
LogUtils.isShowLog = isShowLog;
}
public static boolean isShowLog() {
return isShowLog;
}
public static int getPriority() {
return priority;
}
public static void setPriority(int priority) {
LogUtils.priority = priority;
}
/**
* 根据堆栈生成TAG
* @return TAG|className.methodName(L:lineNumber)
*/
private static String generateTag(StackTraceElement caller) {
String tag = TAG_FORMAT;
String callerClazzName = caller.getClassName();
callerClazzName = callerClazzName.substring(callerClazzName.lastIndexOf(".") + 1);
tag = String.format(tag,new Object[] { callerClazzName, caller.getMethodName(),Integer.valueOf(caller.getLineNumber()) });
return new StringBuilder().append(TAG).append(VERTICAL).append(tag).toString();
}
/**
* 获取堆栈
* @param n
* n=0 VMStack
* n=1 Thread
* n=3 CurrentStack
* n=4 CallerStack
* ...
* @return
*/
public static StackTraceElement getStackTraceElement(int n) {
return Thread.currentThread().getStackTrace()[n];
}
/**
* 获取调用方的堆栈TAG
* @return
*/
private static String getCallerStackLogTag(){
return generateTag(getStackTraceElement(5));
}
/**
*
* @param t
* @return
*/
private static String getStackTraceString(Throwable t){
return Log.getStackTraceString(t);
}
// -----------------------------------Log.v
/**
* Log.v
* @param msg
*/
public static void v(String msg) {
if (isShowLog && priority <= VERBOSE)
Log.v(getCallerStackLogTag(), msg);
}
public static void v(Throwable t) {
if (isShowLog && priority <= VERBOSE)
Log.v(getCallerStackLogTag(), getStackTraceString(t));
}
public static void v(String msg,Throwable t) {
if (isShowLog && priority <= VERBOSE)
Log.v(getCallerStackLogTag(), msg, t);
}
// -----------------------------------Log.d
/**
* Log.d
* @param msg
*/
public static void d(String msg) {
if (isShowLog && priority <= DEBUG)
Log.d(getCallerStackLogTag(), msg);
}
public static void d(Throwable t) {
if (isShowLog && priority <= DEBUG)
Log.d(getCallerStackLogTag(), getStackTraceString(t));
}
public static void d(String msg,Throwable t) {
if (isShowLog && priority <= DEBUG)
Log.d(getCallerStackLogTag(), msg, t);
}
// -----------------------------------Log.i
/**
* Log.i
* @param msg
*/
public static void i(String msg) {
if (isShowLog && priority <= INFO)
Log.i(getCallerStackLogTag(), msg);
}
public static void i(Throwable t) {
if (isShowLog && priority <= INFO)
Log.i(getCallerStackLogTag(), getStackTraceString(t));
}
public static void i(String msg,Throwable t) {
if (isShowLog && priority <= INFO)
Log.i(getCallerStackLogTag(), msg, t);
}
// -----------------------------------Log.w
/**
* Log.w
* @param msg
*/
public static void w(String msg) {
if (isShowLog && priority <= WARN)
Log.w(getCallerStackLogTag(), msg);
}
public static void w(Throwable t) {
if (isShowLog && priority <= WARN)
Log.w(getCallerStackLogTag(), getStackTraceString(t));
}
public static void w(String msg,Throwable t) {
if (isShowLog && priority <= WARN)
Log.w(getCallerStackLogTag(), msg, t);
}
// -----------------------------------Log.e
/**
* Log.e
* @param msg
*/
public static void e(String msg) {
if (isShowLog && priority <= ERROR)
Log.e(getCallerStackLogTag(), msg);
}
public static void e(Throwable t) {
if (isShowLog && priority <= ERROR)
Log.e(getCallerStackLogTag(), getStackTraceString(t));
}
public static void e(String msg,Throwable t) {
if (isShowLog && priority <= ERROR)
Log.e(getCallerStackLogTag(), msg, t);
}
// -----------------------------------Log.wtf
/**
* Log.wtf
* @param msg
*/
public static void wtf(String msg) {
if (isShowLog && priority <= ASSERT)
Log.wtf(getCallerStackLogTag(), msg);
}
public static void wtf(Throwable t) {
if (isShowLog && priority <= ASSERT)
Log.wtf(getCallerStackLogTag(), getStackTraceString(t));
}
public static void wtf(String msg,Throwable t) {
if (isShowLog && priority <= ASSERT)
Log.wtf(getCallerStackLogTag(), msg, t);
}
// -----------------------------------System.out.print
/**
* System.out.print
*
* @param msg
*/
public static void print(String msg) {
if (isShowLog && priority <= PRINTLN)
System.out.print(msg);
}
public static void print(Object obj) {
if (isShowLog && priority <= PRINTLN)
System.out.print(obj);
}
// -----------------------------------System.out.printf
/**
* System.out.printf
*
* @param msg
*/
public static void printf(String msg) {
if (isShowLog && priority <= PRINTLN)
System.out.printf(msg);
}
// -----------------------------------System.out.println
/**
* System.out.println
*
* @param msg
*/
public static void println(String msg) {
if (isShowLog && priority <= PRINTLN)
System.out.println(msg);
}
public static void println(Object obj) {
if (isShowLog && priority <= PRINTLN)
System.out.println(obj);
}
}
只是进行了一个简单的封装、方便记录与管理、