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Enables
processes to send messages about variable values to the system log
or to log files on the file system of the AEM forms Server.
For information about using the Variable Logger service, see
Services Reference for AEM forms
log operation
Logs
messages about process variables to system resources or saves them
to a text file:
-
Messages logged to system resources are reported using
either the application server log or Standard Out. The configuration
of the application server determines where the server log is saved,
and what system resource is used for Standard Out. You can set the
type of information that is logged when you use system logging.
-
Messages logged to a text file are saved in a file on the
file system of the AEM forms Server.
When the Log operation
is executed, the current values of all process variables are logged.
For example, the following items were added to the system log for a
process that includes the
string
variable named
stringVar
:
2008-04-10 16:54:30,718 WARN [com.adobe.idp.dsc.variablelogger.VariableLoggerService] [PID:7] /process_data/@stringvar - String: This is the value of the string
2008-04-10 16:54:30,718 WARN [com.adobe.idp.dsc.variablelogger.VariableLoggerService] Variable Properties:
VP1207841667573:length = [100]
For information about the General and Route Evaluation property
groups, see
Common operation properties
.
System Logging properties
Properties for logging variable values to system resources.
Log To System Logger
Select to have messages about variables
sent to the application server log.
Log To Standard Out
Select to have messages about variables
sent to Standard Out.
Logging Level
The severity level that you want to use for the
log items in the system log. You can select one of the following
values.
-
Off (no information is logged)
-
Debug
-
Info
-
Warning
-
Severe
For example, when Info is selected, log entries
for a the
stringVar
variable value are logged as
INFO messages in the JBoss log:
2008-04-10 16:53:53,937 INFO [com.adobe.idp.dsc.variablelogger.VariableLoggerService] [PID:6] /process_data/@str4ingvar - String: The string value.
When
Warning is selected, the log entries in the JBoss log are logged
as WARN messages:
2008-04-10 16:54:30,718 WARN [com.adobe.idp.dsc.variablelogger.VariableLoggerService] [PID:7] /process_data/@str4ingvar - String: The string value
Directory Logging properties
Properties for logging information to text files on the
file system.
Log To A directory
Select to have messages about variables
saved to files on the file system.
Directory Path
A
string
value that represents
the directory in which to save the log files. If the directory does
not exist, it is created automatically.
File Name Prefix
A
string
value that represents
the prefix to use for the file name in which the log is saved. The
file name extension.log is appended to the prefix.
Logging Mode
Specifies whether information for each new process
instance overwrites previous log entries. You can select one of
the following values.
-
Overwrite:
-
The information in the log file is overwritten when messages
for a new instance are logged.
-
Append:
-
Information for each process instance is logged to the same
file, appending new information to the end of the file.
-
CreateNew:
-
A new log file is created for each process instance. A unique
prefix is added to each log file name.
Variable Logger exceptions
The
Variable Logger service provides the following exceptions for throwing exception
events.
Java.io.IOException
Thrown when a file input/output error occurs on the AEM
forms Server.
VariableLoggerConfigurationException
Thrown when a configuration error occurs on the AEM forms
Server.
VariableLoggerExecutionException
Thrown when an execution error occurs on the AEM forms
Server.
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