Parsing data coming from a URL

I need to parse the data coming from a URL:

haschanged=true
version=1
timestamp=1389562122310
DATACENTER=/pr/hello/plc
    TotalNumberOfServers:4
    primary:{0=1, 1=2, 2=1, 3=2, 4=1, 5=2, 6=1, 7=2, 8=1, 9=2, 10=1, 11=2, 12=1, 13=2}
    secondary:{0=0, 1=0, 2=0, 3=1, 4=0, 5=0, 6=0, 7=1, 8=0, 9=0, 10=0, 11=1, 12=0, 13=0}
    hosttomachine:{3=plcdbx1115.plc.domain.com, 2=plcdbx1114.plc.domain.com, 1=plcdbx1113.plc.domain.com, 4=plcdbx1116.plc.domain.com}
DATACENTER=/pr/hello/pty
    TotalNumberOfServers:2
    primary:{0=1, 1=2, 2=1, 3=2, 4=1, 5=2, 6=1, 7=2, 8=1, 9=2, 10=1, 11=2, 12=1, 13=2, 14=1}
    secondary:{0=0, 1=0, 2=0, 3=1, 4=0, 5=0, 6=0, 7=1, 8=0, 9=0, 10=0, 11=1, 12=0, 13=0, 14=0}
    hosttomachine:{1=ptydbx1145.pty.domain.com, 4=ptydbx1148.pty.domain.com}
DATACENTER=/pr/hello/vgs
    TotalNumberOfServers:0
    primary:{}
    secondary:{}
    hosttomachine:{}

After parsing the data I need to store all datacenter data in a Map like this:

ConcurrentHashMap> primaryData

For example, the Key of primaryData is /pr/hello/plc and value is:

{0=1, 1=2, 2=1, 3=2, 4=1, 5=2, 6=1, 7=2, 8=1, 9=2, 10=1, 11=2, 12=1, 13=2}

which is for primary.

Similarly another Map for secondary for each datacenter:

ConcurrentHashMap> secondaryData

For example, the Key of secondaryData is /pr/hello/plc and value is:

{0=0, 1=0, 2=0, 3=1, 4=0, 5=0, 6=0, 7=1, 8=0, 9=0, 10=0, 11=1, 12=0, 13=0}

which is for secondary.

And lastly, one more map for hosttomachine mapping for each datacenter:

ConcurrentHashMap> hostMachineMapping -

For example, the key of hostMachineMapping is /pr/hello/plc and value is:

{3=plcdbx1115.plc.domain.com, 2=plcdbx1114.plc.domain.com, 1=plcdbx1113.plc.domain.com, 4=plcdbx1116.plc.domain.com}

which is for hosttomachine.

And all the above map will have data for its datacenter as I have three datacenter in the above example. So each each map will have three data. And also I will parse the

Regex to the rescue

-
Regex for key: (?

-
Regex for primary values: (?

-
Regex for secondary values: (?

-
Regex for hostMachine Mapping: (?

-
Split on "," for primary, secondary, and hostMachine

Use these as your patterns then go through each match. Each iteration should give you key with matching values.

StackExchange Code Review Q#39231, answer score: 2