Powershell parsing regex in text file

I have a text file:

Text.txt

2015-08-31 05:55:54,881 INFO   (ClientThread.java:173) - Login successful for user = Test, client = 123.456.789.100:12345
2015-08-31 05:56:51,354 INFO   (ClientThread.java:325) - Closing connection 123.456.789.100:12345

I would like output to be:

2015-08-31 05:55:54 Login user = Test, client = 123.456.789.100
2015-08-31 05:56:51 Closing connection 123.456.789.100

Code:

$files = Get-Content "Text.txt"
$grep = $files | Select-String "serviceClient:" , "Unregistered" |  
Where {$_ -match '^(\S+)+\s+([^,]+).*?-\s+(\w+).*?(\S+)$' } |
Foreach {"$($matches[1..4])"} | Write-Host

How can I do it with the current code?

via Chebli Mohamed