Более вменяемый BuilderAdapter

src/main/kotlin/ru/dbotthepony/kstarbound/defs/projectile/Configurable.kt

@@ -10,7 +10,9 @@ import ru.dbotthepony.kstarbound.defs.*
 import ru.dbotthepony.kstarbound.io.json.ConfigurableTypeAdapter
 import ru.dbotthepony.kstarbound.io.json.BuilderAdapter
 import ru.dbotthepony.kstarbound.io.json.CustomEnumTypeAdapter
+import ru.dbotthepony.kstarbound.util.NotNullVar
 import ru.dbotthepony.kvector.vector.Color
+import java.util.concurrent.ConcurrentHashMap
 import kotlin.properties.Delegates
 
 class ConfigurableProjectile : RawPrototype<ConfigurableProjectile, ConfiguredProjectile>() {
@@ -182,9 +184,9 @@ class ActionConfig : IConfigurableAction {
 	}
 
 	companion object {
-		val ADAPTER = BuilderAdapter(::ActionConfig, ActionConfig::file).ignoreProperty("action")
+		val ADAPTER = BuilderAdapter.Builder(::ActionConfig, ActionConfig::file).ignoreKey("action").build()
 
-		private val cache = HashMap<String, CActionConfig>()
+		private val cache = ConcurrentHashMap<String, CActionConfig>()
 	}
 }
 
@@ -192,7 +194,7 @@ class ActionConfig : IConfigurableAction {
  * Создает новый прожектайл с заданными параметрами
  */
 class ActionProjectile : IConfigurableAction {
-	lateinit var type: String
+	var type by NotNullVar<String>()
 	var angle = 0.0
 	var inheritDamageFactor = 1.0
 
@@ -201,11 +203,11 @@ class ActionProjectile : IConfigurableAction {
 	}
 
 	companion object {
-		val ADAPTER = BuilderAdapter(::ActionProjectile,
+		val ADAPTER = BuilderAdapter.Builder(::ActionProjectile,
 			ActionProjectile::type,
 			ActionProjectile::angle,
 			ActionProjectile::inheritDamageFactor,
-		).ignoreProperty("action").missingPropertiesAreFatal(false)
+		).ignoreKey("action").build()
 	}
 }
 
@@ -220,9 +222,9 @@ class ActionSound : IConfigurableAction {
 	}
 
 	companion object {
-		val ADAPTER = BuilderAdapter(::ActionSound,
+		val ADAPTER = BuilderAdapter.Builder(::ActionSound,
 			ActionSound::options,
-		).ignoreProperty("action")
+		).ignoreKey("action").build()
 	}
 }
 
@@ -238,10 +240,10 @@ class ActionLoop : IConfigurableAction {
 	}
 
 	companion object {
-		val ADAPTER = BuilderAdapter(::ActionLoop,
+		val ADAPTER = BuilderAdapter.Builder(::ActionLoop,
 			ActionLoop::count,
 			ActionLoop::body,
-		).ignoreProperty("action")
+		).ignoreKey("action").build()
 	}
 }
 
@@ -256,8 +258,8 @@ class ActionActions : IConfigurableAction {
 	}
 
 	companion object {
-		val ADAPTER = BuilderAdapter(::ActionActions,
+		val ADAPTER = BuilderAdapter.Builder(::ActionActions,
 			ActionActions::list,
-		).ignoreProperty("action")
+		).ignoreKey("action").build()
 	}
 }

src/main/kotlin/ru/dbotthepony/kstarbound/io/json/BuilderAdapter.kt

@@ -1,140 +1,93 @@
 package ru.dbotthepony.kstarbound.io.json
 
-import com.google.common.collect.ImmutableList
+import com.google.common.collect.ImmutableMap
+import com.google.common.collect.ImmutableSet
 import com.google.gson.JsonSyntaxException
 import com.google.gson.TypeAdapter
 import com.google.gson.stream.JsonReader
 import com.google.gson.stream.JsonToken
 import com.google.gson.stream.JsonWriter
-import it.unimi.dsi.fastutil.objects.Object2ObjectArrayMap
 import it.unimi.dsi.fastutil.objects.ObjectArraySet
-import org.apache.logging.log4j.Level
+import it.unimi.dsi.fastutil.objects.ObjectOpenHashSet
 import org.apache.logging.log4j.LogManager
-import ru.dbotthepony.kstarbound.Starbound
 import kotlin.reflect.KClass
 import kotlin.reflect.KMutableProperty1
-import kotlin.reflect.KType
-import kotlin.reflect.full.isSuperclassOf
+import kotlin.reflect.full.isSubclassOf
+
+@Suppress("FunctionName")
+fun <T : Any> BuilderAdapter(factory: () -> T, vararg fields: KMutableProperty1<T, *>): BuilderAdapter<T> {
+	val builder = BuilderAdapter.Builder(factory)
+
+	for (field in fields) {
+		builder.auto(field)
+	}
+
+	return builder.build()
+}
 
 /**
- * Kotlin property aware adapter.
- *
- * Создаёт пустые классы, а после наполняет их данными, что подходит для builder'ов с очень
- * большим количеством возможных данных внутри.
- *
- * Подходит для игровых структур которые могут быть "разобраны" и пересобраны.
+ * [TypeAdapter] для классов, которые создаются "без всего", а после наполняются данными (паттерн builder).
  */
-class BuilderAdapter<T>(val factory: () -> T, vararg fields: KMutableProperty1<T, *>) : TypeAdapter<T>() {
-	private val mappedFields = Object2ObjectArrayMap<String, KMutableProperty1<T, in Any?>>()
-	// потому что returnType медленный
-	private val mappedFieldsReturnTypes = Object2ObjectArrayMap<String, KType>()
-	private val loggedMisses = ObjectArraySet<String>()
+class BuilderAdapter<T : Any> private constructor(
+	/**
+	 * Завод по созданию объектов типа [T]
+	 */
+	val factory: () -> T,
 
-	private val ignoreProperties = ObjectArraySet<String>()
+	/**
+	 * Свойства объекта [T], которые можно выставлять
+	 */
+	val properties: ImmutableMap<String, WrappedProperty<T, Any?>>,
 
-	init {
-		for (field in fields) {
-			// потому что в котлине нет понятия KProperty который не имеет getter'а, только setter
-			require(mappedFields.put(field.name, field as KMutableProperty1<T, in Any?>) == null) { "${field.name} is defined twice" }
-			mappedFieldsReturnTypes[field.name] = field.returnType
-		}
-	}
-
-	val fields: List<KMutableProperty1<T, in Any?>> by lazy {
-		return@lazy ImmutableList.builder<KMutableProperty1<T, in Any?>>().let {
-			for (v in mappedFields.values.iterator()) {
-				it.add(v)
-			}
-
-			it.build()
-		}
-	}
-
-	fun ignoreProperty(vararg value: String): BuilderAdapter<T> {
-		ignoreProperties.addAll(value)
-		return this
-	}
-
-	var missingPropertiesAreFatal = true
-	var missingLogLevel = Level.ERROR
-
-	fun missingPropertiesAreFatal(flag: Boolean): BuilderAdapter<T> {
-		missingPropertiesAreFatal = flag
-		return this
-	}
-
-	fun missingLogLevel(level: Level): BuilderAdapter<T> {
-		missingLogLevel = level
-		return this
-	}
+	/**
+	 * Ключи, которые необходимо игнорировать при чтении JSON
+	 */
+	val ignoreKeys: ImmutableSet<String>,
+) : TypeAdapter<T>() {
+	private val loggedMisses = ObjectOpenHashSet<String>()
 
 	override fun write(writer: JsonWriter, value: T) {
 		TODO("Not yet implemented")
 	}
 
-	override fun read(reader: JsonReader): T? {
-		if (reader.peek() == JsonToken.NULL) {
-			reader.nextNull()
-			return null
-		}
+	override fun read(reader: JsonReader): T {
+		val missing = ObjectArraySet<WrappedProperty<T, Any?>>()
+		missing.addAll(properties.values)
 
 		reader.beginObject()
-		val instance = factory.invoke()!!
+
+		val instance = factory.invoke()
 
 		while (reader.hasNext()) {
 			val name = reader.nextName()
-			val field = mappedFields[name]
 
-			if (field != null) {
+			if (ignoreKeys.contains(name)) {
+				reader.skipValue()
+				continue
+			}
+
+			val property = properties[name]
+
+			if (property != null) {
 				try {
 					val peek = reader.peek()
-					val expectedType = mappedFieldsReturnTypes[name]!!
 
-					if (!expectedType.isMarkedNullable && peek == JsonToken.NULL) {
-						throw NullPointerException("Property ${field.name} of ${instance::class.qualifiedName} does not accept nulls")
+					if (!property.returnType.isMarkedNullable && peek == JsonToken.NULL) {
+						throw NullPointerException("Property ${property.property.name} of ${instance::class.qualifiedName} does not accept nulls")
 					} else if (peek == JsonToken.NULL) {
-						field.set(instance, null)
+						property.property.set(instance, null)
 						reader.nextNull()
 					} else {
-						val classifier = expectedType.classifier
-
-						if (classifier is KClass<*>) {
-							if (classifier.isSuperclassOf(Float::class)) {
-								val read = reader.nextDouble()
-								field.set(instance, read.toFloat())
-							} else if (classifier.isSuperclassOf(Double::class)) {
-								val read = reader.nextDouble()
-								field.set(instance, read)
-							} else if (classifier.isSuperclassOf(Int::class)) {
-								val read = reader.nextInt()
-								field.set(instance, read)
-							} else if (classifier.isSuperclassOf(Long::class)) {
-								val read = reader.nextLong()
-								field.set(instance, read)
-							} else if (classifier.isSuperclassOf(String::class)) {
-								val read = reader.nextString()
-								field.set(instance, read)
-							} else if (classifier.isSuperclassOf(Boolean::class)) {
-								val read = reader.nextBoolean()
-								field.set(instance, read)
-							} else {
-								field.set(instance, Starbound.gson.fromJson(reader, classifier.java))
-							}
-						} else {
-							throw IllegalStateException("Expected ${field.name} classifier to be KClass, got $classifier")
-						}
+						val readValue = property.adapter.read(reader)
+						property.property.set(instance, readValue)
+						check(missing.remove(property))
 					}
 				} catch(err: Throwable) {
-					throw JsonSyntaxException(
-						"Reading property ${field.name} of ${instance::class.qualifiedName} near ${reader.path}",
-						err
-					)
+					throw JsonSyntaxException("Reading property ${property.property.name} of ${instance::class.qualifiedName} near ${reader.path}", err)
 				}
-			} else if (!ignoreProperties.contains(name) && missingPropertiesAreFatal) {
-				throw JsonSyntaxException("Property $name is not present in ${instance::class.qualifiedName}")
 			} else {
-				if (!ignoreProperties.contains(name) && !loggedMisses.contains(name)) {
-					LOGGER.log(missingLogLevel, "{} has no property for storing {}", instance::class.qualifiedName, name)
+				if (!loggedMisses.contains(name)) {
+					LOGGER.warn("{} has no property for storing {}", instance::class.qualifiedName, name)
 					loggedMisses.add(name)
 				}
 
@@ -143,9 +96,99 @@ class BuilderAdapter<T>(val factory: () -> T, vararg fields: KMutableProperty1<T
 		}
 
 		reader.endObject()
+
+		for (property in missing) {
+			if (property.mustBePresent == null) {
+				// null - проверяем, есть ли делегат
+			}
+		}
+
 		return instance
 	}
 
+	data class WrappedProperty<T, V : Any?>(
+		val property: KMutableProperty1<T, V>,
+		val adapter: TypeAdapter<V>,
+		val mustBePresent: Boolean?,
+	) {
+		// кеш
+		val returnType = property.returnType
+	}
+
+	class PropertyConfigurator<T, V : Any?>(
+		val property: KMutableProperty1<T, V>,
+		val adapter: TypeAdapter<V>,
+	) {
+		/**
+		 * Обязана ли присутствовать эта переменная внутри JSON структуры.
+		 */
+		var mustBePresent: Boolean? = null
+	}
+
+	class Builder<T : Any>(val factory: () -> T, vararg fields: KMutableProperty1<T, *>) {
+		private val properties = ArrayList<WrappedProperty<T, *>>()
+		private val ignoreKeys = ObjectArraySet<String>()
+
+		init {
+			for (field in fields)
+				auto(field)
+		}
+
+		fun <V> add(property: KMutableProperty1<T, V>, adapter: TypeAdapter<V>, configurator: PropertyConfigurator<T, V>.() -> Unit = {}): Builder<T> {
+			if (properties.any { it.property == property }) {
+				throw IllegalArgumentException("Property $property is defined twice")
+			}
+
+			ignoreKeys.remove(property.name)
+
+			val config = PropertyConfigurator(property, adapter)
+			configurator.invoke(config)
+
+			properties.add(WrappedProperty(
+				property,
+				adapter,
+				mustBePresent = config.mustBePresent
+			))
+
+			return this
+		}
+
+		fun <V> auto(property: KMutableProperty1<T, V>, configurator: PropertyConfigurator<T, V>.() -> Unit = {}): Builder<T> {
+			val returnType = property.returnType
+			val classifier = returnType.classifier as? KClass<*> ?: throw ClassCastException("Unable to cast ${returnType.classifier} to KClass of property ${property.name}!")
+
+			if (classifier.isSubclassOf(List::class)) {
+				throw IllegalArgumentException("${property.name} is a List, please use autoList() method instead")
+			}
+
+			if (classifier.isSubclassOf(Map::class)) {
+				throw IllegalArgumentException("${property.name} is a Map, please use autoMap() method instead")
+			}
+
+			@Suppress("unchecked_cast")
+			return add(property, LazyTypeProvider(classifier.java) as TypeAdapter<V>, configurator)
+		}
+
+		fun ignoreKey(name: String): Builder<T> {
+			if (properties.any { it.property.name == name }) {
+				throw IllegalArgumentException("Can not ignore key $name because we have property with this name!")
+			}
+
+			ignoreKeys.add(name)
+			return this
+		}
+
+		@Suppress("unchecked_cast")
+		fun build(): BuilderAdapter<T> {
+			val map = ImmutableMap.Builder<String, WrappedProperty<T, Any?>>()
+
+			for (property in properties)
+				map.put(property.property.name, property as WrappedProperty<T, Any?>)
+
+			return BuilderAdapter(factory, map.build(), ImmutableSet.copyOf(ignoreKeys))
+		}
+	}
+
 	companion object {
 		private val LOGGER = LogManager.getLogger(ConfigurableTypeAdapter::class.java)
 	}

src/main/kotlin/ru/dbotthepony/kstarbound/io/json/FactoryAdapter.kt

@@ -36,7 +36,7 @@ private data class PackedProperty<Clazz : Any, T>(
 }
 
 /**
- * TypeAdapter для классов которые создаются единожды и более не меняются ("бетонных классов").
+ * [TypeAdapter] для классов, которые имеют все свои свойства в главном конструкторе.
  */
 class FactoryAdapter<T : Any> private constructor(
 	val bound: KClass<T>,
@@ -400,6 +400,15 @@ class FactoryAdapter<T : Any> private constructor(
 		fun <In> auto(field: KProperty1<T, In>, transformer: (In) -> In = { it }): Builder<T> {
 			val returnType = field.returnType
 			val classifier = returnType.classifier as? KClass<*> ?: throw ClassCastException("Unable to cast ${returnType.classifier} to KClass of property ${field.name}!")
+
+			if (classifier.isSubclassOf(List::class)) {
+				throw IllegalArgumentException("${field.name} is a List, please use autoList() method instead")
+			}
+
+			if (classifier.isSubclassOf(Map::class)) {
+				throw IllegalArgumentException("${field.name} is a Map, please use autoMap() method instead")
+			}
+
 			types.add(PackedProperty(field, LazyTypeProvider(classifier.java) as TypeAdapter<Any?>, transformer = transformer as (Any?) -> Any?))
 			return this
 		}

src/main/kotlin/ru/dbotthepony/kstarbound/util/NotNullVar.kt

@@ -0,0 +1,26 @@
+package ru.dbotthepony.kstarbound.util
+
+import kotlin.properties.ReadWriteProperty
+import kotlin.reflect.KProperty
+import kotlin.properties.Delegates
+
+/**
+ * Аналог [Delegates.notNull], но со свойством [isInitialized]
+ */
+class NotNullVar<V : Any> : ReadWriteProperty<Any, V> {
+	private var value: V? = null
+
+	/**
+	 * Имеет ли данный делегат не-null значение
+	 */
+	val isInitialized: Boolean
+		get() = value != null
+
+	override fun getValue(thisRef: Any, property: KProperty<*>): V {
+		return value ?: throw IllegalStateException("Property ${property.name} was not initialized")
+	}
+
+	override fun setValue(thisRef: Any, property: KProperty<*>, value: V) {
+		this.value = value
+	}
+}