Groovy Split CSV

Question

I have a csv file (details.csv) like

ID,NAME,ADDRESS
1,\"{foo,bar}\",\"{123,mainst,ny}\"
2,\"{abc,def}\",\"{124,mainst,Va}\"
3,\"{pqr,xyz}\",\"{125,mainst,IL         


        

Answer 1

Writing a csv parser is a tricky business.

I would let someone else do the hard work, and use something like GroovyCsv

---

Here is how to parse it with GroovyCsv

// I'm using Grab instead of just adding the jar and its
// dependencies to the classpath
@Grab( 'com.xlson.groovycsv:groovycsv:1.0' )
import com.xlson.groovycsv.CsvParser

def csv = '''ID,NAME,ADDRESS
1,"{foo,bar}","{123,mainst,ny}"
2,"{abc,def}","{124,mainst,Va}"
3,"{pqr,xyz}","{125,mainst,IL}"'''

def csva = CsvParser.parseCsv( csv )
csva.each {
  println it
}

Which prints:

ID: 1, NAME: {foo,bar}, ADDRESS: {123,mainst,ny}
ID: 2, NAME: {abc,def}, ADDRESS: {124,mainst,Va}
ID: 3, NAME: {pqr,xyz}, ADDRESS: {125,mainst,IL}

So, to get the NAME field of the second row, you could do:

def csvb = CsvParser.parseCsv( csv )
println csvb[ 1 ].NAME

Which prints

{abc,def}

Of course, if the CSV is a File, you can do:

def csvc = new File( 'path/to/csv' ).withReader {
  CsvParser.parseCsv( it )
}

Then use it as above