Code:
from com.pplus.workflow.server import WFSystem
from com.pplus.util import SystemLog, PropertiesUtils
from com.pplus.db import DBUtils
import java

SystemLog.logMessage( 'DumpPublicHolidays extension - dumping public holidays to database table', SystemLog.ADVICE )
db = WFSystem.getDatabase( dbName )
conn, stmt = None, None

try:
    conn = db.getConnection()

    # clear the table
    stmt = conn.createStatement()
    stmt.executeUpdate( deleteSQL )

    # now need to parse the holiday details from the system props (since the business calendar isn't accessible)
    props = WFSystem.getProperties()
    holProps = PropertiesUtils.getSubSections( props, 'calendar.holiday' )
...
...
There is more to this code but what is 'calendar.holiday' and where can I find this file!!!???

Any clues would be appreciated!