Debug information for File Forwarder Multiline

The File Forwarder Multiline plug-in contains new debug lines that provide more information about the behavior of the File Forwarder.

To enable these lines, change the log configuration settings to allow TRACE or DEBUG levels. For more information about log configuration, see Configuring logs.

During the source setup, there are now debug statements that display the filter that is set:

02-15 11:50:12.731 DEBUG Device.Source.Local.TestFF : Start filter: ^(\d\d\d\d[-]\d\d[-]\d\d\s\d\d[:]\d\d[:]\d\d[.]\d\d\d\d).*
02-15 11:50:12.732 DEBUG Device.Source.Local.TestFF : End filter: .*(TheSessionID\s=\s([\d-\w]+))

During event processing, there are trace statements that signify wether a match was made:

02-15 11:50:24.091 TRACE Device.FileReader.test.log : NextLine: 2021-11-17 09:36:09.5092|INFO|99|This is a test for multiline events
02-15 11:50:24.091 TRACE Device.Source.Local.TestFF : Match found for starting filter/regex line: 2021-11-17 09:36:09.5092|INFO|99|This is a test for multiline events
02-15 11:50:24.091 TRACE Device.FileReader.test.log : NextLine: this is the second line of a multiline event
02-15 11:50:24.092 TRACE Device.FileReader.test.log : NextLine: this is the third and last line of the multiline event. TheSessionID = 111111-ab12-c345-6d78-90e12345fghi7
02-15 11:50:24.094 TRACE Device.Source.Local.TestFF : Match found for ending filter/regex line: this is the third and last line of the multiline event. TheSessionID = 111111-ab12-c345-6d78-90e12345fghi7