How to change variables with in a string into a Map

Question

I have let's say 100 variables in a string , my requirement is to automatically create a Map out of the string:

String str = "$$test$$ $$test2$$ $$test$$ $$test3$$"

Expected Result:

["test":test, "test2":test2, "test3":test3];

EDIT (for dsharew) This is the last version of my code

def list = queryText.findAll(/\$\$(.*?)\$\$/)

def map = [:]
list.each{
log.debug(it)
    it = it.replace("\$\$", "")
log.debug(it)
    map.putAt(it, it)
}

log.debug(list)
log.debug(map)
queryText = queryText.replaceAll(/\$\$(.*?)\$\$/) { k -> map[k[1]] ?: k[0] }
log.debug(queryText)

And the logs print the following result:

$$test$$
test
$$test2$$
test2
$$test$$
test
$$test3$$
test3
[$$test$$, $$test2$$, $$test$$, $$test3$$]
{test=test, test2=test2, test3=test3}
test test2 test test3

Do you really have hundred variables? what is your use case? — Rao
– Rao, Commented Apr 19, 2017 at 14:08
I have a script unit in Webratio which returns all the placeholders of hundreds of RTF templates and those are given as inputs in this other script which must do the mapping like I've shown — GiLA3
– GiLA3, Commented Apr 19, 2017 at 14:11
Sorry I didn't understand what you asked, the variable always has the name of the placeholder, for example if I have $$NAME$$ in my template, I will need ["NAME":NAME] in my Map — GiLA3
– GiLA3, Commented Apr 19, 2017 at 14:28

dsharew · Accepted Answer · 2017-04-20 05:43:47Z

1

This should do what you want:

def queryText = "\$\$test\$\$ \$\$test2\$\$ \$\$test\$\$ \$\$test3\$\$"
toMap(queryText.findAll(/\$\$(.*?)\$\$/));

def toMap(list){
    def map = [:]
    list.each{
        it = it.replace("\$\$", "")
        map.putAt(it, it)
    };
    println map;
    return map;

}

edited Apr 20, 2017 at 5:43

answered Apr 19, 2017 at 14:24

dsharew

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14 Comments

GiLA3 Over a year ago

My last step is the following: queryText = queryText.replaceAll(/\$\$(.*?)\$\$/) { k -> map[k[1]] ?: k[0] } so how can I adapt your solution?

dsharew Over a year ago

what is this? queryText?

GiLA3 Over a year ago

just a String such as "$$test1$$ contains test1"

dsharew Over a year ago

ok can you post the final result of the value of queryText so I can change my solution for you

dsharew Over a year ago

can you use different delimter because $ sign has a special meaning in groovy? can you use comma?

|

Mario · Accepted Answer · 2017-04-20 22:22:11Z

1

Following @dsharew answer, I've reduced it a little bit more:

def queryText = "\$\$test\$\$ \$\$test2\$\$ \$\$test\$\$ \$\$test3\$\$"    

def resultMap = queryText
  .findAll(/\$\$(.*?)\$\$/)
  .collectEntries { String next ->         
    [next.replace("\$\$", "")] * 2                    
  }

collectEntries can be used to return a map from a collection if it returns a map or a tuple for every entry in the collection.
If you multiply a list by n, you are creating a bigger list with n times its content

BTW cool problem!

answered Apr 20, 2017 at 22:22

Mario

1014 bronze badges

Comments

John Mercier · Accepted Answer · 2017-04-20 12:53:34Z

0

This is what I came up with

String str = '$$test$$ $$test2$$ $$test$$ $$test3$$'
str.replaceAll('\\$\\$', '').split(' ').collectEntries { [(it):it] }

answered Apr 20, 2017 at 12:53

John Mercier

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2 Comments

GiLA3 Over a year ago

This code is ok, but doesn't work for example with: String str = '$$test$$ $$test2$$ $$test$$ $$test3$$ $$t' even if that's a very remote case. Thanks for your time anyways! May be helpful to somebody :)

John Mercier Over a year ago

You should add that as your example input and describe how partial words are handled

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