olk90
commented
3 years ago Found the problem: The info field is null in the file and the InventoryItemdidn't allow info to be empty. If somebody steps into similar issues, here's the reworked class:
class InventoryItem (
name: String = "",
available: Boolean? = false,
lendingDate: LendingDate = LendingDate(),
lender: Int? = -1,
info: String? = null,
category: String = "",
nextMot: MotDate = MotDate(),
motRequired: Boolean? = true,
) {
@Json(ignored = true)
val nameProperty = SimpleStringProperty(name)
@Json(ignored = true)
val availableProperty = SimpleBooleanProperty(available ?: false)
@Json(ignored = true)
val lendingDateProperty = SimpleObjectProperty(lendingDate)
@Json(ignored = true)
val lenderProperty = SimpleIntegerProperty(lender ?: -1)
@Json(ignored = true)
val infoProperty = SimpleStringProperty(info)
@Json(ignored = true)
val categoryProperty = SimpleStringProperty(category)
@Json(ignored = true)
val motRequiredProperty = SimpleBooleanProperty(motRequired ?: false)
@Json(ignored = true)
val nextMotProperty = SimpleObjectProperty(nextMot)
val id = ObjectStore.nextInventoryId()
var name: String
get() = nameProperty.value
set(value) = nameProperty.set(value)
var available: Boolean?
get() = availableProperty.value
set(value) = availableProperty.set(value ?: false)
var lendingDate: LendingDate
get() = lendingDateProperty.value
set(value) = lendingDateProperty.set(value)
var lender: Int
get() = lenderProperty.value
set(value) = lenderProperty.set(value)
var info: String
get() = infoProperty.value
set(value) = infoProperty.set(value)
var category: String
get() = categoryProperty.value
set(value) = categoryProperty.set(value)
var motRequired: Boolean?
get() = motRequiredProperty.value
set(value) = motRequiredProperty.set(value ?: false)
var nextMot: MotDate
get() = nextMotProperty.value
set(value) = nextMotProperty.set(value)
}And here's the handling of the dates:
package de.olk90.inventorymanager.logic.datahelpers
import com.beust.klaxon.Converter
import com.beust.klaxon.JsonValue
import com.beust.klaxon.KlaxonException
import java.time.LocalDate
import java.time.format.DateTimeFormatter
@Target(AnnotationTarget.FIELD)
annotation class IsoDate
class LendingDate @JvmOverloads constructor(
@IsoDate
val date: LocalDate = LocalDate.of(2000, 1, 1)
)
val lendingDateConverter = object : Converter {
override fun canConvert(cls: Class<*>) = cls == LocalDate::class.java
override fun fromJson(jv: JsonValue) =
if (jv.string != null) {
val formatter = DateTimeFormatter.ISO_LOCAL_DATE
LocalDate.parse(jv.string, formatter)
} else {
throw KlaxonException("Couldn't parse date: ${jv.string}")
}
override fun toJson(value: Any) = """ { "date" : $value } """
}
@Target(AnnotationTarget.FIELD)
annotation class MonthYearDate
class MotDate @JvmOverloads constructor(
@MonthYearDate
val date: LocalDate = LocalDate.of(2000, 1, 1)
)
val motDateConverter = object : Converter {
override fun canConvert(cls: Class<*>) = cls == LocalDate::class.java
override fun fromJson(jv: JsonValue): Any? {
return if (jv.string != null) {
val formatter = DateTimeFormatter.ofPattern("d/MMM/yyyy")
LocalDate.parse(jv.string, formatter)
} else {
val formatter = DateTimeFormatter.ofPattern("d/MMM/yyyy")
LocalDate.parse("1/Jan/2000", formatter)
}
}
override fun toJson(value: Any) = """ { "date" : $value } """
}With the dates, the file had to be andjusted, too:
{
"identifier": "Stuff",
"persons": [
{
"email": "gj@caesar.spqr",
"firstName": "Gaius J.",
"id": 0,
"lastName": "Caesar"
}
],
"items": [
{
"available": true,
"category": "None",
"id": 0,
"info": null,
"lender": -1,
"lendingDate": {
"date": "2021-08-02"
},
"motRequired": true,
"name": "Sword",
"nextMot": {
"date": "1/Jan/2024"
}
}
],
"history": [
{
"item": 0,
"lender": 0,
"lendingDate": "2021-08-02",
"returnDate": "2021-08-01"
}
]
}
Hi there,
I am facing trouble when parsing a JSON file containing a Boolean with the following stacktrace:
Here's what the line
at de.olk90.inventorymanager.logic.controller.WorkspaceController.openDataContainer(WorkspaceController.kt:230)looks like:And here the
DataContainerclass:The class
InventoryItemthat seems to be the actual problem looks like this:It is class behind a JavaFX
TableView, therefore the property fields. I'm currently working on a migration of the project from TornadoFX to JavaFX in order to be able to compile it for later JREs than Java 8. The original project is to be found here with the original class. This implementation is perfectly capable of parsing the related JSON file:Does anyone have a clue, what's the problem here?
Edit
I've managed to get rid of the error by allowing the Boolean properties to be null (and added the missing fields from the JSON file as well):
There is still a parsing error, but without any hint in the stacktrace:
I'll continue research and maybe try to fix the
LocalDatemess first.