Enabled Factory to Inject Logger

sample/sdk_config.ini

@@ -25,22 +25,27 @@ mode = sandbox
 
 ;Logging Information
 [Log]
+; For custom logging implementation, you can set the
+; logging factory provider class here.
+; The class should be implementing \PayPal\Log\PayPalLogFactory.
+; If this is not set, it will default to \PayPal\Log\PayPalDefaultLogFactory.
+;log.AdapterFactory=\PayPal\Log\PayPalDefaultLogFactory
+
+; Settings for PayPalDefaultLogFactory
 log.LogEnabled=true
 
 ; When using a relative path, the log file is created
 ; relative to the .php file that is the entry point
 ; for this request. You can also provide an absolute
 ; path here
+; Settings for PayPalDefaultLogFactory
 log.FileName=../PayPal.log
 
-; Logging level can be one of
-; Sandbox Environments: DEBUG, INFO, WARN, ERROR
-; Live Environments: INFO, WARN, ERROR
+; Logging level can be one of any provided at \Psr\Log\LogLevel
 ; Logging is most verbose in the 'DEBUG' level and
 ; decreases as you proceed towards ERROR
 ; DEBUG level is disabled for live, to not log sensitive information.
-; If the level is set to DEBUG, it will be reduced to FINE automatically,
-; with a warning message
+; If the level is set to DEBUG, it will be reduced to INFO automatically
 log.LogLevel=INFO
 
 ;Caching Configuration