how to parse CSV to JSON from 2 CSV Files in Groovy - csv

Question

Please help with parse CSV to JSON from 2 CSV Files in groovy
For example :
CSV1:
testKey,status
Name001,PASS
Name002,PASS
Name003,FAIL
CSV2:
Kt,Pd
PT-01,Name001
PT-02,Name002
PT-03,Name003
PT-04,Name004
I want to input in "testlist" data from CSV2.val[1..-1],CSV1.val[1..-1]
Result should be like :
{
"testExecutionKey": "DEMO-303",
"info": {
"user": "admin"
},
"tests": [
{
"TestKey": "PT-01",
"status": "PASS"
},
{
"TestKey": "PT-02",
"status": "PASS"
},
{
"TestKey": "PT-03",
"status": "FAIL"
}
]
code without this modification (from only 1 csv):
import groovy.json.*
def kindaFile = '''
TestKey;Finished;user;status
Name001;PASS;
Name002;PASS;
'''.trim()
def keys
def testList = []
//parse CSV
kindaFile.splitEachLine( /;/ ){ parts ->
if( !keys )
keys = parts
else{
def test = [:]
parts.eachWithIndex{ val, ix -> test[ keys[ ix ] ] = val }
testList << test
}
}
def builder = new JsonBuilder()
def root = builder {
testExecutionKey 'DEMO-303'
info user: 'admin'
tests testList
}
println JsonOutput.prettyPrint(JsonOutput.toJson(root))

Answer 1

Your sample JSON doesn't match the CSV definition. It looks lile you're using fields [1..-1] from CSV 1, as you stated, but fields [0..-2] from CSV 2. As you only have 2 fields in each CSV that's the equivalent of csv1[1] and csv2[0]. The example below uses [0..-2]. Note that if you always have exactly two fields in your input files then the following code could be simplified a little. I've given a more generic solution that can cope with more fields.
Load both CSV files into lists
File csv1 = new File( 'one.csv')
File csv2 = new File( 'two.csv')
def lines1 = csv1.readLines()
def lines2 = csv2.readLines()
assert lines1.size() <= lines2.size()
Note the assert. That's there as I noticed you have 4 tests in CSV2 but only 3 in CSV1. To allow the code to work with your sample data, it iterates through through CSV1 and adds the matching data from CSV2.
Get the field names
fieldSep = /,[ ]*/
def fieldNames1 = lines1[0].split( fieldSep )
def fieldNames2 = lines1[0].split( fieldSep )
Build the testList collection
def testList = []
lines1[1..-1].eachWithIndex { csv1Line, lineNo ->
def mappedLine = [:]
def fieldsCsv1 = csv1Line.split( fieldSep )
fieldsCsv1[1..-1].eachWithIndex { value, fldNo ->
String name = fieldNames1[ fldNo + 1 ]
mappedLine[ name ] = value
}
def fieldsCsv2 = lines2[lineNo + 1].split( fieldSep )
fieldsCsv2[0..-2].eachWithIndex { value, fldNo ->
String name = fieldNames2[ fldNo ]
mappedLine[ name ] = value
}
testList << mappedLine
}
Parsing
You can now parse the list of maps with your existing code. I've made a change to the way the JSON string is displayed though.
def builder = new JsonBuilder()
def root = builder {
testExecutionKey 'DEMO-303'
info user: 'admin'
tests testList
}
println builder.toPrettyString()
JSON Output
Running the above code, using your CSV1 and CSV 2 data, gives the JSON that you desire.

Answer 2

for CSV1:
testKey,status
Name001,PASS
Name002,PASS
Name003,FAIL
and CSV2:
Kt,Pd
PT-01,Name007
PT-02,Name001
PT-03,Name003
PT-05,Name002
PT-06,Name004
PT-07,Name006
result is:
{
"testExecutionKey": "DEMO-303",
"info": {
"user": "admin"
},
"tests": [
{
"status": "PASS",
"testKey": "PT-01"
},
{
"status": "PASS",
"testKey": "PT-02"
},
{
"status": "FAIL",
"testKey": "PT-03"
}
]
}
but I need exactly the same values for testKey (testKey from CSV1=Kt from CSV2)
{
"testExecutionKey": "DEMO-303",
"info": {
"user": "admin"
},
"tests": [
{
"testKey": "PT-02",
"status": "PASS"
},
{
"testKey": "PT-05",
"status": "PASS"
},
{
"testKey": "PT-03",
"status": "FAIL"
}
]
}