Adds JSONL connection

vitrivr-engine-core/src/main/kotlin/org/vitrivr/engine/core/features/metadata/source/exif/ExifMetadataExtractor.kt

@@ -58,6 +58,7 @@ private fun convertType(directory: Directory, tagType: Int, type: Type): Value<*
     Type.Short -> Value.Short(directory.getObject(tagType) as Short)
     Type.String -> Value.String(directory.getString(tagType))
     Type.Text -> Value.String(directory.getString(tagType))
+    Type.UUID -> Value.UUIDValue(UUID.fromString(directory.getString(tagType)))
     is Type.BooleanVector -> throw IllegalArgumentException("Unsupported type: $type")
     is Type.DoubleVector -> throw IllegalArgumentException("Unsupported type: $type")
     is Type.FloatVector -> throw IllegalArgumentException("Unsupported type: $type")

vitrivr-engine-core/src/main/kotlin/org/vitrivr/engine/core/model/descriptor/Attribute.kt

@@ -1,5 +1,6 @@
 package org.vitrivr.engine.core.model.descriptor
 
+import kotlinx.serialization.Serializable
 import org.vitrivr.engine.core.model.types.Type
 
 /** The name of an attribute. */
@@ -12,4 +13,5 @@ typealias AttributeName = String
  * @author Ralph Gasser
  * @version 1.0.0
  */
+@Serializable
 data class Attribute(val name: AttributeName, val type: Type, val nullable: Boolean = false)

vitrivr-engine-core/src/main/kotlin/org/vitrivr/engine/core/model/descriptor/Descriptor.kt

@@ -1,14 +1,16 @@
 package org.vitrivr.engine.core.model.descriptor
 
+import kotlinx.serialization.Serializable
 import org.vitrivr.engine.core.model.Persistable
 import org.vitrivr.engine.core.model.metamodel.Schema
 import org.vitrivr.engine.core.model.retrievable.Retrievable
 import org.vitrivr.engine.core.model.retrievable.RetrievableId
+import org.vitrivr.engine.core.model.serializer.UUIDSerializer
 import org.vitrivr.engine.core.model.types.Value
 import java.util.*
 
 /** A typealias to identify the [UUID] identifying a [Descriptor]. */
-typealias DescriptorId = UUID
+typealias DescriptorId = @Serializable(UUIDSerializer::class) UUID
 
 /**
  * A [Persistable] [Descriptor] that can be used to describe a [Retrievable].

vitrivr-engine-core/src/main/kotlin/org/vitrivr/engine/core/model/descriptor/scalar/FloatDescriptor.kt

@@ -1,5 +1,6 @@
 package org.vitrivr.engine.core.model.descriptor.scalar
 
+import kotlinx.serialization.Serializable
 import org.vitrivr.engine.core.model.descriptor.Attribute
 import org.vitrivr.engine.core.model.descriptor.DescriptorId
 import org.vitrivr.engine.core.model.descriptor.scalar.ScalarDescriptor.Companion.VALUE_ATTRIBUTE_NAME
@@ -14,7 +15,6 @@ import org.vitrivr.engine.core.model.types.Value
  * @author Ralph Gasser
  * @version 1.0.0
  */
-
 data class FloatDescriptor(
     override var id: DescriptorId,
     override var retrievableId: RetrievableId?,

vitrivr-engine-core/src/main/kotlin/org/vitrivr/engine/core/model/descriptor/scalar/LongDescriptor.kt

@@ -1,5 +1,6 @@
 package org.vitrivr.engine.core.model.descriptor.scalar
 
+
 import org.vitrivr.engine.core.model.descriptor.Attribute
 import org.vitrivr.engine.core.model.descriptor.DescriptorId
 import org.vitrivr.engine.core.model.descriptor.scalar.ScalarDescriptor.Companion.VALUE_ATTRIBUTE_NAME
@@ -14,7 +15,6 @@ import org.vitrivr.engine.core.model.types.Value
  * @author Ralph Gasser
  * @version 1.0.0
  */
-
 data class LongDescriptor(
     override var id: DescriptorId,
     override var retrievableId: RetrievableId?,

vitrivr-engine-core/src/main/kotlin/org/vitrivr/engine/core/model/descriptor/scalar/ScalarDescriptor.kt

@@ -1,5 +1,6 @@
 package org.vitrivr.engine.core.model.descriptor.scalar
 
+import kotlinx.serialization.Serializable
 import org.vitrivr.engine.core.model.descriptor.AttributeName
 import org.vitrivr.engine.core.model.descriptor.Descriptor
 import org.vitrivr.engine.core.model.types.Value
@@ -10,6 +11,7 @@ import org.vitrivr.engine.core.model.types.Value
  * @author Ralph Gasser
  * @version 1.1.0
  */
+@Serializable
 sealed interface ScalarDescriptor<T : Value.ScalarValue<*>> : Descriptor {
 
     companion object {

vitrivr-engine-core/src/main/kotlin/org/vitrivr/engine/core/model/retrievable/Retrievable.kt

@@ -1,15 +1,17 @@
 package org.vitrivr.engine.core.model.retrievable
 
+import kotlinx.serialization.Serializable
 import org.vitrivr.engine.core.model.Persistable
 import org.vitrivr.engine.core.model.content.element.ContentElement
 import org.vitrivr.engine.core.model.descriptor.Descriptor
 import org.vitrivr.engine.core.model.relationship.Relationship
 import org.vitrivr.engine.core.model.retrievable.attributes.RetrievableAttribute
+import org.vitrivr.engine.core.model.serializer.UUIDSerializer
 import java.util.*
 import java.util.function.Predicate
 
 /** A typealias to identify the [UUID] identifying a [Retrievable]. */
-typealias RetrievableId = UUID
+typealias RetrievableId = @Serializable(UUIDSerializer::class) UUID
 
 /**
  * A [Persistable] and [Retrievable] unit of information stored by vitrivr.

vitrivr-engine-core/src/main/kotlin/org/vitrivr/engine/core/model/serializer/DateSerializer.kt

@@ -0,0 +1,14 @@
+package org.vitrivr.engine.core.model.serializer
+
+import kotlinx.serialization.KSerializer
+import kotlinx.serialization.descriptors.PrimitiveKind
+import kotlinx.serialization.descriptors.PrimitiveSerialDescriptor
+import kotlinx.serialization.encoding.Decoder
+import kotlinx.serialization.encoding.Encoder
+import java.util.*
+
+object DateSerializer: KSerializer<Date> {
+    override val descriptor = PrimitiveSerialDescriptor("Date", PrimitiveKind.LONG)
+    override fun serialize(encoder: Encoder, value: Date) = encoder.encodeLong(value.time)
+    override fun deserialize(decoder: Decoder): Date = Date(decoder.decodeLong())
+}

vitrivr-engine-core/src/main/kotlin/org/vitrivr/engine/core/model/serializer/DateTimeSerializer.kt

@@ -0,0 +1,15 @@
+package org.vitrivr.engine.core.model.serializer
+
+import kotlinx.serialization.KSerializer
+import kotlinx.serialization.descriptors.PrimitiveKind
+import kotlinx.serialization.descriptors.PrimitiveSerialDescriptor
+import kotlinx.serialization.encoding.Decoder
+import kotlinx.serialization.encoding.Encoder
+import org.vitrivr.engine.core.model.types.Value
+import java.util.*
+
+object DateTimeSerializer: KSerializer<Value.DateTime> {
+    override val descriptor = PrimitiveSerialDescriptor("DateTime", PrimitiveKind.LONG)
+    override fun serialize(encoder: Encoder, value: Value.DateTime) = encoder.encodeLong(value.value.time)
+    override fun deserialize(decoder: Decoder): Value.DateTime = Value.DateTime(Date(decoder.decodeLong()))
+}

vitrivr-engine-core/src/main/kotlin/org/vitrivr/engine/core/model/serializer/UUIDSerializer.kt

@@ -0,0 +1,14 @@
+package org.vitrivr.engine.core.model.serializer
+
+import kotlinx.serialization.KSerializer
+import kotlinx.serialization.descriptors.PrimitiveKind
+import kotlinx.serialization.descriptors.PrimitiveSerialDescriptor
+import kotlinx.serialization.encoding.Decoder
+import kotlinx.serialization.encoding.Encoder
+import java.util.UUID
+
+object UUIDSerializer: KSerializer<UUID> {
+    override val descriptor = PrimitiveSerialDescriptor("UUID", PrimitiveKind.STRING)
+    override fun serialize(encoder: Encoder, value: UUID) = encoder.encodeString(value.toString())
+    override fun deserialize(decoder: Decoder): UUID = UUID.fromString(decoder.decodeString())
+}

vitrivr-engine-core/src/main/kotlin/org/vitrivr/engine/core/model/types/Type.kt

@@ -1,5 +1,6 @@
 package org.vitrivr.engine.core.model.types
 
+import kotlinx.serialization.Serializable
 import java.util.*
 
 /**
@@ -55,6 +56,7 @@ sealed interface Type {
      *
      * Primarily needed, since simple strings and longer texts are treated differently by certain databases.
      */
+    @Serializable
     data object Text : Type {
         override val dimensions: kotlin.Int = 1
         override fun defaultValue(): Value<*> = Value.String("")
@@ -65,6 +67,7 @@ sealed interface Type {
      *
      * Primarily needed, since simple strings and longer texts are treated differently by certain databases.
      */
+    @Serializable
     data object String : Type {
         override val dimensions: kotlin.Int = 1
         override fun defaultValue(): Value<*> = Value.String("")
@@ -73,6 +76,7 @@ sealed interface Type {
     /**
      * A [Type] that represents a [Boolean] value.
      */
+    @Serializable
     data object Boolean : Type {
         override val dimensions: kotlin.Int = 1
         override fun defaultValue(): Value<*> = Value.Boolean(false)
@@ -81,6 +85,7 @@ sealed interface Type {
     /**
      * A [Type] that represents a [Byte] value.
      */
+    @Serializable
     data object Byte : Type {
         override val dimensions: kotlin.Int = 1
         override fun defaultValue(): Value<*> = Value.Byte(0)
@@ -89,6 +94,7 @@ sealed interface Type {
     /**
      * A [Type] that represents a [Short] value.
      */
+    @Serializable
     data object Short : Type {
         override val dimensions: kotlin.Int = 1
         override fun defaultValue(): Value<*> = Value.Short(0)
@@ -97,6 +103,7 @@ sealed interface Type {
     /**
      * A [Type] that represents a [Int] value.
      */
+    @Serializable
     data object Int : Type {
         override val dimensions: kotlin.Int = 1
         override fun defaultValue(): Value<*> = Value.Int(0)
@@ -105,6 +112,7 @@ sealed interface Type {
     /**
      * A [Type] that represents a [Long] value.
      */
+    @Serializable
     data object Long : Type {
         override val dimensions: kotlin.Int = 1
         override fun defaultValue(): Value<*> = Value.Long(0L)
@@ -113,6 +121,7 @@ sealed interface Type {
     /**
      * A [Type] that represents a [Float] value.
      */
+    @Serializable
     data object Float : Type {
         override val dimensions: kotlin.Int = 1
         override fun defaultValue(): Value<*> = Value.Float(0.0f)
@@ -121,6 +130,7 @@ sealed interface Type {
     /**
      * A [Type] that represents a [Double] value.
      */
+    @Serializable
     data object Double : Type {
         override val dimensions: kotlin.Int = 1
         override fun defaultValue(): Value<*> = Value.Double(0.0)
@@ -129,42 +139,57 @@ sealed interface Type {
     /**
      * A [Type] that represents a [Datetime] value.
      */
+    @Serializable
     data object Datetime : Type {
         override val dimensions: kotlin.Int = 1
         override fun defaultValue(): Value<*> = Value.DateTime(Date())
     }
 
+    /**
+     * A [Type] that represents a [UUID] value.
+     */
+    @Serializable
+    data object UUID : Type {
+        override val dimensions: kotlin.Int = 1
+        override fun defaultValue(): Value<*> = Value.UUIDValue(java.util.UUID(0L, 0L))
+    }
+
     /**
      * A [Type] that represents a [BooleanVector] value.
      */
+    @Serializable
     data class BooleanVector(override val dimensions: kotlin.Int) : Type {
         override fun defaultValue(): Value<*> = Value.BooleanVector(this.dimensions)
     }
 
     /**
      * A [Type] that represents a [IntVector] value.
      */
+    @Serializable
     data class IntVector(override val dimensions: kotlin.Int) : Type {
         override fun defaultValue(): Value<*> = Value.IntVector(this.dimensions)
     }
 
     /**
      * A [Type] that represents a [LongVector] value.
      */
+    @Serializable
     data class LongVector(override val dimensions: kotlin.Int) : Type {
         override fun defaultValue(): Value<*> = Value.LongVector(this.dimensions)
     }
 
     /**
      * A [Type] that represents a [FloatVector] value.
      */
+    @Serializable
     data class FloatVector(override val dimensions: kotlin.Int) : Type {
         override fun defaultValue(): Value<*> = Value.FloatVector(this.dimensions)
     }
 
     /**
      * A [Type] that represents a [DoubleVector] value.
      */
+    @Serializable
     data class DoubleVector(override val dimensions: kotlin.Int) : Type {
         override fun defaultValue(): Value<*> = Value.DoubleVector(this.dimensions)
     }