Best way to code this, string to map conversion in Groovy

Question

I have a string like

def data = \"session=234567893egshdjchasd&userId=12345673456&timeOut=1800000\"

I want to convert it to a map

Answer 1

After some searching, "collectEntries()" is the magic thing to use, it creates a map element. Work just like "collect()" that creates a list. So given

def params = "a1=b1&a2=b2&a3&a4=&a5=x=y"

the one-liner is

map = params.tokenize("&").collectEntries{ 
          it.split("=",2).with{ 
              [ (it[0]): (it.size()<2) ? null : it[1] ?: null ] 
          }
      }

which creates

map = [a1:b1, a2:b2, a3:null, a4:null, a5:x=y]

Depending how you want to handle the cases "a3" and "a4=" you can also use a slightly shorter version

...
[ (it[0]): (it.size()<2) ? null : it[1] ] 
...

and then you get this:

map = [a1:b1, a2:b2, a3:null, a4:, a5:x=y]