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/*
* Copyright 2022 Greenfossil Pte Ltd
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.greenfossil.commons.json
import scala.language.implicitConversions
/**
* https://www.json.org/json-en.html
* http://tutorials.jenkov.com/java-json/jackson-jsonnode.html
* https://www.baeldung.com/jackson-serialize-dates
* https://github.com/FasterXML/jackson-modules-java8
*/
import java.time.*
type Number = Int | Long | Float | Double | BigDecimal
type Temporal = java.util.Date | java.sql.Date | java.sql.Time | java.sql.Timestamp |
LocalDateTime | LocalDate | LocalTime | Instant | OffsetDateTime | OffsetTime | ZonedDateTime
private def toJsonType(x: Any): JsValue =
x.asInstanceOf[Matchable] match
case null => JsNull
case s: String => JsString(s)
case b: Boolean => JsBoolean(b)
case n: Number => JsNumber(n)
case t: Temporal => JsTemporal(t)
case xs: Array[?] => JsArray(xs.toIndexedSeq.map(toJsonType))
case obj: Map[?, ?] => JsObject(obj.toList.map(tup2 => tup2._1.toString -> toJsonType(tup2._2)))
case it: Iterable[?] => JsArray(it.map(toJsonType).toList)
case js: JsValue => js
extension [T <: Temporal](t: T)
def jsonFormat(format: String): JsTemporal = JsTemporal(t, format)
def jsonFormat(format: String, zoneId: ZoneId): JsTemporal = JsTemporal(t, format, zoneId)
def jsonFormat(format: String, zoneId: String): JsTemporal = JsTemporal(t, format, ZoneId.of(zoneId))
extension(zonedDT: ZonedDateTime)
def toTemporal(tpe: String): Temporal =
tpe match
case "Instant" => zonedDT.toInstant
case "LocalDateTime" => zonedDT.toLocalDateTime
case "LocalDate" => zonedDT.toLocalDate
case "LocalTime" => zonedDT.toLocalTime
case "ZonedDateTime" => zonedDT
case "OffsetDateTime" => zonedDT.toOffsetDateTime
case "OffsetTime" => zonedDT.toOffsetDateTime.toOffsetTime
case "java.util.Date" => java.util.Date.from(zonedDT.toInstant)
case "java.sql.Date" => java.sql.Date.valueOf(zonedDT.toLocalDate)
case "java.sql.Time" => java.sql.Time.valueOf(zonedDT.toLocalTime)
case "java.sql.Timestamp" => java.sql.Timestamp.from(zonedDT.toInstant)
extension(i: Instant)
def toTemporal(tpe: String):Temporal = i.atZone(ZoneId.systemDefault()).toTemporal(tpe)
extension(localDT: LocalDateTime)
def toTemporal(tpe: String):Temporal = localDT.atZone(ZoneId.systemDefault()).toTemporal(tpe)
extension(localDate: LocalDate)
def toTemporal(tpe: String):Temporal = localDate.atStartOfDay(ZoneId.systemDefault()).toTemporal(tpe)
extension(localTime: LocalTime)
def toTemporal(tpe: String):Temporal = LocalDate.now.atTime(localTime).atZone(ZoneId.systemDefault()).toTemporal(tpe)
extension(offsetTime: OffsetTime)
def toTemporal(tpe: String):Temporal = LocalDate.now.atTime(offsetTime).atZoneSameInstant(ZoneId.systemDefault()).toTemporal(tpe)
extension(offsetDT: OffsetDateTime)
def toTemporal(tpe: String):Temporal = offsetDT.atZoneSameInstant(ZoneId.systemDefault()).toTemporal(tpe)
extension(jDate: java.util.Date)
def toTemporal(tpe: String):Temporal = jDate.toInstant.atZone(ZoneId.systemDefault()).toTemporal(tpe)
extension(bd: BigDecimal)
def toTemporal(tpe: String):Temporal = Instant.ofEpochMilli(bd.longValue).atZone(ZoneId.systemDefault()).toTemporal(tpe)
val EPOCTIME_REGEX = """\d+""".r
val LOCALDATE_REGEX = """(\d\d\d\d)-(\d\d)-(\d\d)""".r
val LOCALTIME_REGEX = """(\d\d):(\d\d):(\d\d).*""".r
val LOCALDATETIME_REGEX = """(\d\d\d\d)-(\d\d)-(\d\d)T(\d\d):(\d\d):(\d\d).*""".r
val INSTANT_REGEX = """(\d\d\d\d)-(\d\d)-(\d\d)T(\d\d):(\d\d):(\d\d).*Z""".r
val OFFSETDATETIME_REGEX = """(\d\d\d\d)-(\d\d)-(\d\d)T(\d\d):(\d\d):(\d\d)\+(\d\d):(\d\d)""".r
val OFFSETTIME_REGEX = """(\d\d):(\d\d):(\d\d)\+(\d\d):(\d\d)""".r
val ZONEDDATETIME_REGEX = """(\d\d\d\d)-(\d\d)-(\d\d)T(\d\d):(\d\d):(\d\d)\+(\d\d):(\d\d)\[(.+)\]""".r
extension(bd: String)
def toTemporal(tpe: String):Temporal =
val zdt = bd match {
case EPOCTIME_REGEX(long) => Instant.ofEpochMilli(long.toLong).atZone(ZoneId.systemDefault())
case INSTANT_REGEX(year, month, day, hh, mm, ss) => Instant.parse(bd).atZone(ZoneId.systemDefault())
case ZONEDDATETIME_REGEX(year, month, day, hh, mm, ss, ohh, omm, zone) => ZonedDateTime.parse(bd)
case OFFSETDATETIME_REGEX(year, month, day, hh, mm, ss, ohh, omm) => OffsetDateTime.parse(bd).atZoneSimilarLocal(ZoneId.systemDefault())
case OFFSETTIME_REGEX(hh, mm, ss, ohh, omm) => OffsetTime.parse(bd).atDate(LocalDate.now).atZoneSimilarLocal(ZoneId.systemDefault())
case LOCALDATETIME_REGEX(year, month, day, hh, mm, ss) => LocalDateTime.parse(bd.replaceAll("[Z\\+].*", "")).atZone(ZoneId.systemDefault())
case LOCALDATE_REGEX(year, month, day) => LocalDate.parse(bd).atStartOfDay(ZoneId.systemDefault())
case LOCALTIME_REGEX(hh, mm, ss) => LocalDate.now.atTime(LocalTime.parse(bd.replaceAll("[Z\\+].*", ""))).atZone(ZoneId.systemDefault())
}
zdt.toTemporal(tpe)
import scala.compiletime.*
inline private def valueType[T]: String =
inline erasedValue[T] match
case _: Instant => "Instant"
case _: LocalDateTime => "LocalDateTime"
case _: LocalDate => "LocalDate"
case _: LocalTime => "LocalTime"
case _: OffsetTime => "OffsetTime"
case _: OffsetDateTime => "OffsetDateTime"
case _: ZonedDateTime => "ZonedDateTime"
case _: java.sql.Date => "java.sql.Date"
case _: java.sql.Time => "java.sql.Time"
case _: java.sql.Timestamp => "java.sql.Timestamp"
case _: java.util.Date => "java.util.Date"
case _: JsTemporal => "JsTemporal"
case _: JsString => "JsString"
case _: JsBoolean => "JsBoolean"
case _: JsNumber => "JsNumber"
case _: JsObject => "JsObject"
case _: JsArray => "JsArray"
case _: JsValue => "JsValue"
case _: Int => "Int"
case _: Long => "Long"
case _: Float => "Float"
case _: Double => "Double"
case _: BigDecimal => "BigDecimal"
case _: Boolean => "Boolean"
case _: String => "String"
case _: Seq[t] => "[" + valueType[t]
case _: Map[String, Any] => "Object" //TODO - to support value of other types apart from Any
case _: Any => "Any"
object JsValue:
given Conversion[String | Boolean | Number | Temporal | Null, JsValue] =
toJsonType(_)
given Conversion[Seq[?], JsArray] with
def apply(xs: Seq[?]): JsArray = JsArray(xs.map(toJsonType))
given Conversion[Set[?], JsArray] with
def apply(xs: Set[?]): JsArray = JsArray(xs.toSeq.map(toJsonType))
given Conversion[Option[?], Option[JsValue]] with
def apply(xs: Option[?]): Option[JsValue] = xs.map(toJsonType)
sealed trait JsValue:
type A
def value: A
private def jsValueToTemporal(jsValue: JsValue, toType: String): Temporal =
jsValue match
case x: JsNumber => x.value.toTemporal(toType)
case x: JsString => x.value.toTemporal(toType)
case x: JsTemporal if toType == "Any" => x.value
case x: JsTemporal =>
x.value match
case t: Instant => t.toTemporal(toType)
case t: LocalDateTime => t.toTemporal(toType)
case t: LocalDate => t.toTemporal(toType)
case t: LocalTime => t.toTemporal(toType)
case t: OffsetTime => t.toTemporal(toType)
case t: OffsetDateTime => t.toTemporal(toType)
case t: ZonedDateTime => t.toTemporal(toType)
case t: java.util.Date => t.toTemporal(toType)
case JsNull => null
case unsupported => throw new JsonException(s"Temporal Conversion error for unsupported ${unsupported}")
private def jsValueToBoolean(jsValue: JsValue, tpe: String): Boolean =
jsValue match
case JsString(value) => value.toBooleanOption.getOrElse(false)
case JsNumber(value) => value > 0
case JsTemporal(value, format, zoneId) => throw new JsonException(s"Temporal Conversion error for unsupported ${jsValue}")
case JsBoolean(value) => value
case JsNull => false
case JsObject(value) => value.isEmpty
case JsArray(value) => value.isEmpty
case JsUndefined(value) => throw new JsonException(s"Undefined value [${value}]")
private def jsValueToString(jsValue: JsValue, tpe: String): String =
jsValue match
case JsString(value) => value
case JsNumber(value) => value.toString
case JsTemporal(value, format, zoneId) => value.toString
case JsBoolean(value) => value.toString
case JsNull => null
case JsObject(value) => value.toString
case JsArray(value) => value.toString
case JsUndefined(value) => throw new JsonException(s"Undefined value [${value}]")
private def jsValueToNumber(jsValue: JsValue, tpe: String): Number =
jsValue match
case JsString(value) =>
tpe match
case "Int" => value.toInt
case "Long" => value.toLong
case "Float" => value.toFloat
case "Double" => value.toDouble
case "BigDecimal" => BigDecimal.apply(value)
case JsNumber(value) =>
tpe match
case "Any" => value
case "Int" => value.toInt
case "Long" => value.toLong
case "Float" => value.toFloat
case "Double" => value.toDouble
case _ => value
case JsUndefined(value) => throw new JsonException(s"Undefined value [${value}]")
case unsupported => throw new JsonException(s"Number conversion error for unsupported ${unsupported}. JsTemporal, JsNull, JsObject, JsArray are not supported")
private def jsValueToArray(jsValue: JsValue, tpe: String): Seq[Any] =
jsValue match
case JsString(s) => Seq(s)
case JsNumber(bd) => Seq(bd)
case value : JsTemporal => Seq(jsValueToTemporal(value, ""))
case JsBoolean(b) => Seq(b)
case JsNull => Seq.empty
case obj: JsObject =>
val fields: Seq[(String, Any)] = obj.fields.flatMap{(key, jsValue) =>
jsValue match
case v: JsString => Option(key -> jsValueToString(v, tpe))
case v: JsNumber => Option(key -> jsValueToNumber(v, tpe))
case v: JsTemporal => Option(key -> jsValueToTemporal(v, "Instant"))
case v: JsBoolean => Option(key -> jsValueToBoolean(v, tpe))
case JsNull => Option(key -> null)
case v: JsObject => Option(key -> jsValueToObject(v, tpe))
case v: JsArray => Option(key -> jsValueToArray(v, tpe))
case v: JsUndefined => None
}
fields
case JsArray(value) => value.map(v => asValue(v, tpe))
case JsUndefined(value) => throw new JsonException(s"Undefined value [${value}]")
private def jsValueToObject(jsValue: JsValue, tpe: String): Map[String, Any] =
jsValue match
case JsString(s) => Map("1" -> s)
case JsNumber(bd) => Map("1" -> bd)
case value : JsTemporal => Map("1" -> jsValueToTemporal(value, ""))
case JsBoolean(b) => Map("1" -> b)
case JsNull => Map.empty
case obj: JsObject =>
val fields: Seq[(String, Any)] = obj.fields.flatMap{(key, jsValue) =>
jsValue match
case v: JsString => Option(key -> jsValueToString(v, tpe))
case v: JsNumber => Option(key -> jsValueToNumber(v, tpe))
case v: JsTemporal => Option(key -> jsValueToTemporal(v, tpe))
case v: JsBoolean => Option(key -> jsValueToBoolean(v, tpe))
case JsNull => Option(key -> null)
case v: JsObject => Option(key -> jsValueToObject(v, tpe))
case v: JsArray => Option(key -> jsValueToArray(v, tpe))
case v: JsUndefined => None
}
fields.toMap
case JsArray(value) =>
val fields: Seq[(String, Any)] = value.zipWithIndex.flatMap{(jsValue, index) =>
val key = index.toString
jsValue match
case v: JsString => Option(key -> jsValueToString(v, tpe))
case v: JsNumber => Option(key -> jsValueToNumber(v, tpe))
case v: JsTemporal => Option(key -> jsValueToTemporal(v, tpe))
case v: JsBoolean => Option(key -> jsValueToBoolean(v, tpe))
case JsNull => Option(key -> null)
case v: JsObject => Option(key -> jsValueToObject(v, tpe))
case v: JsArray => Option(key -> jsValueToArray(v, tpe))
case v: JsUndefined => None
}
fields.toMap
case JsUndefined(value) => throw new JsonException(s"Undefined value [${value}]")
private def jsValueToAny(x: JsValue, tpe: String): Any =
x match
case value: JsString => value.value
case value: JsNumber => value.value
case value: JsTemporal => value.value
case value: JsBoolean => value.value
case JsNull => null
case value: JsObject => jsValueToObject(value, "Any")
case value: JsArray => jsValueToArray(value, "Any")
case JsUndefined(value)=> throw new JsonException(s"Undefined value [${value}]")
private def jsValueToJsTemporal(jsValue: JsValue, tpe: String) =
jsValue match
case JsString(s) => JsTemporal(s.toTemporal("Instant"))
case JsNumber(bd) => JsTemporal(Instant.ofEpochMilli(bd.longValue))
case value : JsTemporal => value
case JsNull => JsNull
case JsUndefined(value) => throw new JsonException(s"Undefined value [${value}]")
case unsupported => throw new JsonException(s"JsTemporal Conversion error for unsupported ${unsupported}. JsObject and JsArray are not supported")
private def jsValueToJsString(jsValue: JsValue, tpe: String): JsString =
jsValue match
case value: JsString => value
case JsNumber(value) => JsString(value.toString)
case JsTemporal(value, format, zoneId) => JsString(value.toString)
case JsBoolean(value) => JsString(value.toString)
case JsNull => JsString(null)
case JsObject(value) => JsString(value.toString())
case JsArray(value) => JsString(value.toString())
case JsUndefined(value) => throw new JsonException(s"Undefined value [${value}]")
private def jsValueToJsBoolean(jsValue: JsValue, tpe: String): JsBoolean =
jsValue match
case JsString(value) => JsBoolean(value.toBooleanOption.getOrElse(false))
case JsNumber(value) => JsBoolean(value > 0)
case JsTemporal(value, format, zoneId) => JsBoolean(false)
case value: JsBoolean => value
case JsNull => JsBoolean(false)
case JsObject(value) => JsBoolean(value.isEmpty)
case JsArray(value) => JsBoolean(value.isEmpty)
case JsUndefined(value) => throw new JsonException(s"Undefined value [${value}]")
private def jsValueToJsNumber(jsValue: JsValue, tpe: String): JsNumber =
jsValue match
case JsString(value) => JsNumber(jsValueToNumber(jsValue, tpe))
case value: JsNumber => value
case JsBoolean(value) => JsNumber( if value then 1 else 0)
case JsNull => JsNumber(null)
case JsUndefined(value) => throw new JsonException(s"Undefined value [${value}]")
case unsupported => throw new JsonException(s"JsNumber Conversion error unsupported ${unsupported}. JsTemporal, JsObject and JsArray are not supported")
private def jsValueToJsObject(jsValue: JsValue, tpe: String): JsObject =
jsValue match
case value: JsObject => value
case JsUndefined(value) => throw new JsonException(s"Undefined value [${value}]")
case unsupported => throw new JsonException(s"JsObject Conversion error unsupported ${unsupported}. Only JsObject is supported")
private def jsValueToJsArray(x: JsValue, tpe: String): JsArray =
x match
case value: JsString => JsArray(value)
case value: JsNumber => JsArray(value)
case value: JsTemporal => JsArray(value)
case value: JsBoolean => JsArray(value)
case JsNull => JsArray.empty
case value: JsArray => value
case JsUndefined(value) => throw new JsonException(s"Undefined value [${value}]")
case unsupported => throw new JsonException(s"JsArray Conversion error unsupported ${unsupported}. JsObject is not supported")
def asValue(value: JsValue, toType: String): Any =
//If T is a Type of JsValue use it T else use getValue.asInstanceOf[T]
toType match
case "Instant" => jsValueToTemporal(value, toType)
case "LocalDateTime" => jsValueToTemporal(value, toType)
case "LocalDate" => jsValueToTemporal(value, toType)
case "LocalTime" => jsValueToTemporal(value, toType)
case "OffsetTime" => jsValueToTemporal(value, toType)
case "OffsetDateTime" => jsValueToTemporal(value, toType)
case "ZonedDateTime" => jsValueToTemporal(value, toType)
case "java.sql.Date" => jsValueToTemporal(value, toType)
case "java.sql.Time" => jsValueToTemporal(value, toType)
case "java.sql.Timestamp" => jsValueToTemporal(value, toType)
case "java.util.Date" => jsValueToTemporal(value, toType)
case "Int" => jsValueToNumber(value, toType)
case "Long" => jsValueToNumber(value, toType)
case "Float" => jsValueToNumber(value, toType)
case "Double" => jsValueToNumber(value, toType)
case "BigDecimal" => jsValueToNumber(value, toType)
case "Boolean" => jsValueToBoolean(value, toType)
case "String" => jsValueToString(value, toType)
case "Object" => jsValueToObject(value, toType)
case "JsTemporal" => jsValueToJsTemporal(value, toType)
case "JsString" => jsValueToJsString(value, toType)
case "JsBoolean" => jsValueToJsBoolean(value, toType)
case "JsNumber" => jsValueToJsNumber(value, toType)
case "JsObject" => jsValueToJsObject(value, toType)
case "JsArray" => jsValueToJsArray(value, toType)
case "JsValue" => value
case "Any" => jsValueToAny(value, toType)
case seq if seq.startsWith("[") =>
val array = jsValueToJsArray(value, toType)
array.value.map(v => asValue(v, seq.drop(1)))
case unsupportedType => throw new JsonException(s"Conversion error: unsupported-type:${unsupportedType} for value [${value}]")
inline def as[T]: T = asValue(this, valueType[T]).asInstanceOf[T]
inline def asOpt[T]: Option[T] =
scala.util.Try(this.as[T]).toOption
inline def asNonNullOpt[T]: Option[T] =
scala.util.Try(this.as[T]).toOption.filter(_ != null)
inline def toOption: Option[JsValue] = asOpt[JsValue].filterNot(_.isInstanceOf[JsUndefined])
import com.fasterxml.jackson.databind.JsonNode
val jsonNode: JsonNode = JsonModule.mapper.valueToTree(this)
def jsonNodeToJsValue[T <: JsValue](node: JsonNode, clazz: Class[T]): T =
JsonModule.mapper.treeToValue(node, clazz)
/**
*
* @param path - /path/path - need to have a root forward slash
* @return
*/
def at(path: String): JsValue = jsonNodeToJsValue(jsonNode.at(path), classOf[JsValue])
def \(childIndex: Int): JsValue =
if this.isInstanceOf[JsUndefined] then this
else jsonNodeToJsValue(jsonNode.get(childIndex), classOf[JsValue])
def \(path: String): JsValue =
if this.isInstanceOf[JsUndefined] then this
else jsonNodeToJsValue(jsonNode.at(s"/$path"), classOf[JsValue])
/**
* wild card search or recursive nested search for path
*
* @param path
* @return
*/
def \\(path: String): JsArray =
val jsValues = nodeTraverse(path, jsonNode, List()).map(jsonNode => jsonNodeToJsValue(jsonNode, classOf[JsValue]))
JsArray(jsValues)
private def nodeTraverse(name: String, node: JsonNode, acc: Seq[JsonNode]): Seq[JsonNode] =
import com.fasterxml.jackson.databind.node.ArrayNode
import scala.jdk.CollectionConverters.*
if node.isObject then
val fieldNames = node.fieldNames().asScala
fieldNames.foldLeft(acc) { (res, fieldName) =>
if fieldName == name then res :+ node.get(name)
else res ++ nodeTraverse(name, node.get(fieldName), acc)
}
else if node.isArray then
val elems = node.asInstanceOf[ArrayNode].elements().asScala
elems.foldLeft(acc)((res, e) => res ++ nodeTraverse(name, e, acc))
else acc
@deprecated("use stringify instead")
def toJson: String = Json.stringify(this)
def stringify: String = Json.stringify(this)
def encodeBase64URL: String = encodeBase64URL("UTF-8")
def encodeBase64URL(charSet: String): String = encodeBase64URL(charSet, false)
def encodeBase64URL(charSet: String, withPadding: Boolean): String =
val encoder = if withPadding then java.util.Base64.getUrlEncoder else java.util.Base64.getUrlEncoder.withoutPadding()
encoder.encodeToString(stringify.getBytes(charSet))
/**
* This is same as toJson or Json.stringfy
*
* @return
*/
final override def toString = stringify
end JsValue
/**
* JsString
*/
case class JsString(value: String) extends JsValue:
type A = String
/**
* JsNumber
*/
object JsNumber:
def apply(n: Number): JsNumber =
n match
case x: Int => JsNumber(BigDecimal(x))
case x: Long => JsNumber(BigDecimal(x))
case x: Float /*Float is converted to a Double*/=> JsNumber(x.toString.toDouble)
case x: Double => JsNumber(BigDecimal(x))
case x: BigDecimal => JsNumber(x)
case class JsNumber(value: BigDecimal) extends JsValue:
type A = BigDecimal
object JsTemporal:
def apply(t: Temporal): JsTemporal = JsTemporal(t, "")
/**
* This method is used by JsonModule for serialization
* @param jsTemporal
* @return
*/
def toJson(jsTemporal: JsTemporal): String | Long =
if jsTemporal.format == null || jsTemporal.format.isEmpty
then
jsTemporal.value match
case jdate: java.util.Date => jdate.getTime
case _ => jsTemporal.value.toString
else
import java.time.format.DateTimeFormatter
val dtFormatter = DateTimeFormatter.ofPattern(jsTemporal.format)
jsTemporal.value match
case x: java.util.Date => dtFormatter.withZone(jsTemporal.zoneId).format(x.toInstant)
case x: Instant => dtFormatter.withZone(jsTemporal.zoneId).format(x)
case x: LocalDateTime => dtFormatter.format(x)
case x: LocalDate => dtFormatter.format(x)
case x: LocalTime => dtFormatter.format(x)
case x: OffsetDateTime => dtFormatter.format(x)
case x: OffsetTime => dtFormatter.format(x)
case x: ZonedDateTime => dtFormatter.format(x)
/**
* @param value
* @param format - if not defined, the value will be serialized as with toString with the exception of java.util.Date.
* java.util.Date is serialized as Epoch-time milli seconds
*/
case class JsTemporal(value: Temporal, format:String, zoneId: ZoneId = ZoneId.from(ZoneOffset.UTC)) extends JsValue:
type A = Temporal
def jsonFormat(format: String):JsTemporal = copy(format = format)
/**
* JsBoolean
*/
case class JsBoolean(value: Boolean) extends JsValue:
type A = Boolean
export value.*
/**
* JsNull
*/
case object JsNull extends JsValue:
type A = Null
val value = null
/**
* JsObject
*/
import scala.collection.immutable
object JsObject:
val empty: JsObject = JsObject(immutable.ListMap.empty)
def apply(fields: Seq[(String, JsValue)]): JsObject = new JsObject(immutable.ListMap(fields*))
case class JsObject(value: immutable.ListMap[String, JsValue]) extends JsValue:
type A = immutable.ListMap[String, JsValue]
export value.{ apply as _, - as _ , keys as _, *}
def fields: Seq[(String, JsValue)] = value.toList
def apply(field: String): JsValue = value.getOrElse(field, JsUndefined(s"Field ${field} does not exists"))
def ++ (otherObj: JsObject): JsObject =
JsObject(value ++ otherObj.value)
def + (key:String, jsValue: JsValue): JsObject =
JsObject(this.fields :+ key ->jsValue)
def - (key: String) : JsObject =
JsObject(value.filterNot(entry => entry._1 == key))
def deepMerge(other: JsObject): JsObject =
def merge(existingObject: JsObject, otherObject: JsObject): JsObject = {
val result = existingObject.value ++ otherObject.value.map {
case (otherKey, otherValue) =>
val maybeExistingValue = existingObject.value.get(otherKey)
val newValue = (maybeExistingValue, otherValue) match {
case (Some(e: JsObject), o: JsObject) =>
merge(e, o)
case _ =>
otherValue
}
otherKey ->
newValue
}
JsObject(result)
}
merge(this, other)
def keys: Set[String] = value.keys.toSet
end JsObject
/**
* JsArray
*/
object JsArray:
val empty: JsArray = JsArray(Seq.empty)
def apply(head: JsValue, tail: JsValue*): JsArray =
(head +: tail) match
case (elems: JsArray) +: Nil => elems
case elems => JsArray(elems)
case class JsArray(value: Seq[JsValue]) extends JsValue:
type A = Seq[JsValue]
export value.{head, headOption, isEmpty, nonEmpty, collect, map, filter, exists, foldLeft, tail, take, flatMap}
def ++(otherJsArray: JsArray): JsArray =
JsArray(value ++ otherJsArray.value)
/**
* JsUndefined
* @param value
*/
case class JsUndefined(value: String) extends JsValue:
type A = String
