Table of Contents

Description

Write string into common Graphlytic log file. Useful to log information during execution of ETL job.

Connection

Parameters

Name	Description	Required	Default
level	level of log information. Possible values (all Slf4j levels): TRACE, DEBUG, INFO, WARN, ERROR.	no	DEBUG
log_to_file	toggle writing logs into file.		true
log_to_history	toggle writing logs into job history entries.		true

Query

Not used.

Script

Write string into log file with defined level.

Examples

ETL job writes current date and time into log file.

<!DOCTYPE etl SYSTEM "https://scriptella.org/dtd/etl.dtd">
<etl>
  <description>Test log</description>
  <connection id="logInfo" driver="log">
    level=WARN
  </connection>
  <connection id="groovy" driver="script">language=groovy</connection>
     
  <script connection-id="groovy">
     etl.globals['sysStart'] = new Date();
  </script>    
     
  <script connection-id="logInfo">
      start: ${etl.globals['sysStart']}
  </script>
</etl>

Example log connection writing only job history entries (no file output)

<!DOCTYPE etl SYSTEM "https://scriptella.org/dtd/etl.dtd">
<etl>
  <description>Test log</description>
 
  <connection id="logHistory" driver="log">
    level=WARN
    log_to_file=false
  </connection>
 
  <script connection-id="logHistory">
      Hello Job History!
  </script>
</etl>