Assign JsonArray value to a variable matching case class

Question

I am passing and payload which is similar as the case class reportdata, inside a class. And i need a to get the value of report_data which is a Option[JSArray],

I need assign that JSArray to a varible if that optional array matches the case class reportdata

case class Fields(
                      reportid: Option[Long],
                      report_data: Option[JsArray],
                      header :Option[JsArray],
                      footer :Option[JsArray]
                    )

case class reportdata(
                     customText : Option[String],
                     textAlignment: Option[String],
                     textSize : Option[Int],
                     pageHeight: Long,
                     pageWidth: Long
                     )

The Json i pass from the DB is case class type Fields, and it has 3 JSON Arrays. so i want select the json Array which matches the case class of report data and I should assign it to a new variable.

"reports": [
        {
            "reportid":513,
            "report_data":[
                {
                    "formatType": "text",
                    "value": "This is a sample text to be printed in the report"
                },
                {
                    "formatType": "text size",
                    "value": 12
                },
                {
                    "formatType": "text alignment",
                    "value" : "RIGHT"
                },
                {
                    "formatType": "page height",
                    "value" : "12"
                },
                {
                    "formatType": "page width",
                    "value" : "8"
                }
            ],
            "header": [
                {
                    "formatType": "text",
                    "value": "Test"
                },
                {
                    "formatType": "font size",
                    "value": 12
                }
            ],
            "footer": [
                {
                    "formatType": "text",
                    "value": "Test"
                },
                {
                    "formatType": "font size",
                    "value": 12
                }
            ]
        }
    ]

Please clarify your question. What have you tried / what library do you use. — pme
– pme, Commented Jan 9, 2020 at 6:56

Andriy Plokhotnyuk · Accepted Answer · 2020-02-27 13:07:13Z

1

Use Dijon FTW!

Here is a test that demonstrates how easily the "right" value can be found in samples like yours:

    import com.github.pathikrit.dijon._

    val json = parse(
      """{
        |"data":[
        |  {
        |    "formatType": "text",
        |    "value": "bgyufcie huis huids hufhsduhfsl hd"
        |  },
        |  {
        |    "formatType": "text size",
        |    "value": 12
        |  },
        |  {
        |    "formatType": "text alignment",
        |    "value" : "right"
        |  }
        |]
        |}""".stripMargin)

assert(json.data.toSeq.collect { 
  case obj if obj.formatType == "text alignment" => obj.value 
}.head == "right")

edited Feb 27, 2020 at 13:07

Andriy Plokhotnyuk

8,0432 gold badges47 silver badges69 bronze badges

answered Feb 26, 2020 at 16:53

Bubashan_kushan

3928 silver badges26 bronze badges

Sign up to request clarification or add additional context in comments.

Collectives™ on Stack Overflow

Assign JsonArray value to a variable matching case class

1 Answer 1

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

Comments

Your Answer

Sign up or log in

Post as a guest

Related