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$var >= 199

Arithmetic Operators

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Referencing Variables

The syntax $VARIABLE, $`VARIABLE`, ${VARIABLE} or ${`VARIABLE`} is used to read the value of a variable.

• Similar to a number of Unix shells a variable can be recalled with $ or with ${}

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• .
• Variable names can include dots, however, not at the beginning and not at the end of the variable name and not as a sequence of dots.
• Variable names with dots have to be referenced like this: $`mail.smtp.host`, ${`mail.smtp.host`}

If the variable is unknown then an error is raised and the affected Order will fail.

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• $js7JobName
  • The name of the current job for which an order is executed.
• $epochMilli
  • The number of milliseconds since January 1^st 1970 UTC.
• $returnCode
  • The numeric exit code of the current job for which an order is executed.

Build-in Functions

• env( "environment-variable", "default" )
  • The function reads the value of an existing OS environment variable. The name has to be specified in correct uppercase/lowercase spelling.
  • If the environment variable does not exist then an error is raised and the Order fails. Alternatively a default value can be specified.

  • Examples:

    Expression	env( ('JS7_AGENT_CONFIG_DIR')
    JSON	"env( 'JS7_AGENT_CONFIG_DIR' )"
    Sample Value	/var/sos-berlin.com/js7/agent/var_4445/config

    Expression	env( 'JAVA_HOME', '/usr/lib/jvm/java-1.8-openjdk' )
    JSON	"env( 'JAVA_HOME', '/usr/lib/jvm/java-1.8-openjdk' )"
    Sample Value	/usr/lib/jvm/java-1.8-openjdk

    Expression	env( 'HOSTNAME', env( 'COMPUTERNAME' ) )
    JSON	"env( 'HOSTNAME', env( 'COMPUTERNAME' ) )"
    Sample Value	2021-05-03 07:30:42

• now( format='yyyy-MM-dd hh:mm:ss', timezone='Europe/Berlin' )
  • The job start date. This date can be formatted using Java date qualifiers. Optionally a time zone can be specified, by default the UTC time zone is used.

  • ExampleExamples:

    Expression	now( format='yyyy-MM-dd' )
    JSON	"\"now( format='yyyy-MM-dd' )\""
    Sample Value	2021-05-03

    Expression	now( format='yyyy-MM-dd hh:mm:ss' )
    JSON	"\"now( format='yyyy-MM-dd hh:mm:ss' )\""
    Sample Value	2021-05-03 07:30:42

    Expression	now( format='yyyy-MM-dd hh:mm:ssssZ', timezone="UTCEurope/Berlin" )
    JSON	"\"now( format='yyyy-MM-dd hh:mm:ssssZ', timezone=\\\"Europe/Berlin\\\" )\""
    Sample Value	2021-05-03 09:30:42+02:00

• scheduledOrEmpty( format='yyyy-MM-dd hh:mm:ss', timezone='Europe/Berlin' )
  • The date for which an orders is scheduled.
  • The date formatting options are the same as explained with the now() function.

Further Resources

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