Log (Perforce Java API 2017.2.1635107 API)

java.lang.Object
- com.perforce.p4java.Log

```
public class Log
extends java.lang.Object
```
Simple P4Java-wide logger class based on the ILogCallback callback interface. Useful for letting P4Java consumers report errors, warnings, etc., generated within P4Java into their own logs.
Note that absolutely no guarantees or specifications are made about the format or content of strings that are passed through the logging mechanism, but in general all such strings are useful for Perforce support staff, and many info and stats strings passed to the callback may be generally useful for API consumers.
The Log class is itself used from within P4Java to report log messages; the intention here is to allow consumers to call the setLogCallback static method with a suitable log listener that the P4Java API will log to internally. Most of the methods below besides the setLogCallback method are mainly intended for API-internal use, but participating apps may find the other methods useful for interpolating marker text or other messages to the API's log.

Author:

sshou clean code & add vargs like slf4j

Constructor Summary

Constructors
Constructor and Description

Log()

Constructors
Constructor and Description
`Log()`

Method Summary

All Methods Static Methods Concrete Methods
Modifier and Type	Method and Description
`static void`	`error(java.lang.String errorString, java.lang.Object... args)` Report a P4Java-internal error to the log callback (if it exists).
`static void`	`exception(java.lang.Throwable thr)` Report a P4Java-internal unexpected exception to the log callback (if it exists).
`static ILogCallback`	`getLogCallback()` Get the current log callback, if any.
`static void`	`info(java.lang.String infoString, java.lang.Object... args)` Report a P4Java-internal informational event to the log callback (if it exists).
`static boolean`	`isTracingAtLevel(ILogCallback.LogTraceLevel traceLevel)` Return true if the
`static ILogCallback`	`setLogCallback(ILogCallback logCallback)` Set the P4Java API's internal logger to log to the passed-in ILogCallback log callback.
`static void`	`stats(java.lang.String statsString, java.lang.Object... args)` Report a P4Java-internal statistics message to the log callback (if it exists).
`static void`	`trace(ILogCallback.LogTraceLevel traceLevel, java.lang.String traceMessage)` Report a P4Java-internal trace message to the log callback (if it exists).
`static void`	`warn(java.lang.String warnString, java.lang.Object... args)` Report a P4Java-internal warning to the log callback (if it exists).

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - Log
```
public Log()
```
- Method Detail
  - getLogCallback
```
public static ILogCallback getLogCallback()
```
    Get the current log callback, if any. May return null.
  - setLogCallback
```
public static ILogCallback setLogCallback(ILogCallback logCallback)
```
    Set the P4Java API's internal logger to log to the passed-in ILogCallback log callback. If the passed-in parameter is null, no logging will be performed. The caller is responsible for ensuring that there are not thread issues with the passed-in callback, and that callbacks to the callback object will not block or deadlock.
    
    Parameters:
    
    logCallback - callback to be used by P4Java to report log messages to; if null, stop logging.
    
    Returns:
    
    the previous callback registered, or null if no such callback existed.
  - error
```
public static void error(java.lang.String errorString,
                         @Nullable
                         java.lang.Object... args)
```
    Report a P4Java-internal error to the log callback (if it exists).
    
    Parameters:
    
    errorString - non-null error string.
  - warn
```
public static void warn(java.lang.String warnString,
                        @Nullable
                        java.lang.Object... args)
```
    Report a P4Java-internal warning to the log callback (if it exists).
    
    Parameters:
    
    warnString - non-null warning message.
  - info
```
public static void info(java.lang.String infoString,
                        @Nullable
                        java.lang.Object... args)
```
    Report a P4Java-internal informational event to the log callback (if it exists).
    
    Parameters:
    
    infoString - non-null info message.
  - stats
```
public static void stats(java.lang.String statsString,
                         @Nullable
                         java.lang.Object... args)
```
    Report a P4Java-internal statistics message to the log callback (if it exists).
    
    Parameters:
    
    statsString - non-null stats message.
  - exception
```
public static void exception(java.lang.Throwable thr)
```
    Report a P4Java-internal unexpected exception to the log callback (if it exists).
    
    Parameters:
    
    thr - non-null Throwable
  - trace
```
public static void trace(ILogCallback.LogTraceLevel traceLevel,
                         java.lang.String traceMessage)
```
    Report a P4Java-internal trace message to the log callback (if it exists).
  - isTracingAtLevel
```
public static boolean isTracingAtLevel(ILogCallback.LogTraceLevel traceLevel)
```
    Return true if the

Class Log

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Constructor Detail

Log

Method Detail

getLogCallback

setLogCallback

error

warn

info

stats

exception

trace

isTracingAtLevel