Config/src/dorkbox/config/ConfigProp.kt

122 lines
3.8 KiB
Kotlin

/*
* Copyright 2023 dorkbox, llc
*
* 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 dorkbox.config
import java.lang.Exception
import kotlin.reflect.KClass
import kotlin.reflect.KMutableProperty
import kotlin.reflect.KProperty
import kotlin.reflect.jvm.jvmErasure
internal data class ConfigProp(val key: String, val parentConf: ConfigProp?, val parentObj: Any, val member: KProperty<Any>, val collectionName: String, val index: Int, val ignore: Boolean) {
val returnType: KClass<*>
get() {
return when (parentObj) {
is Array<*> -> {
member.returnType.jvmErasure.javaObjectType.componentType.kotlin
}
is Collection<*> -> {
member.returnType.arguments.first().type!!.jvmErasure
}
else -> {
member.returnType.jvmErasure
}
}
}
var override = false
/**
* We explicitly ignore BASE collection/array types.
*
* We have them as part of our parsing logic, so that we can properly set collection/array values, but do not want them for
* "general" logic
*/
@Synchronized
fun isSupported(): Boolean {
return !ignore && member is KMutableProperty<*>
}
@Synchronized
fun get(): Any? {
return if (parentObj is Array<*>) {
parentObj[index]
}
else if (parentObj is ArrayList<*>) {
parentObj[index]
}
else if (parentObj is AbstractList<*>) {
parentObj[index]
}
else if (parentObj is MutableList<*>) {
parentObj[index]
}
else {
member.getter.call(parentObj)
}
}
@Suppress("UNCHECKED_CAST")
@Synchronized
fun set(value: Any?) {
if (member is KMutableProperty<*>) {
if (parentObj is Array<*>) {
(parentObj as Array<Any?>)[index] = value
}
else if (parentObj is ArrayList<*>) {
(parentObj as ArrayList<Any?>).set(index, value)
}
else if (parentObj is MutableList<*>) {
(parentObj as MutableList<Any?>).set(index, value)
}
else {
member.setter.call(parentObj, value)
}
// if the value is manually "set", then we consider it "not overridden"
override = false
} else {
throw Exception("Cannot set the immutable type ${member.returnType.jvmErasure}")
}
}
/**
* When we are initially parsing the CLI/sys/env info, we use this to specify that it is overridden or not.
*
* When we are SAVING the data, we only save the baseline data, meaning that we do not save the overridden values
*/
fun override(overriddenValue: Any?) {
val get = get()
if (get != overriddenValue) {
set(overriddenValue)
override = true
}
}
// NOTE: this doesn't compare overridden!!
override fun equals(other: Any?): Boolean {
if (other !is ConfigProp) return false
if (isSupported() != other.isSupported()) return false
if (ignore != other.ignore) return false
if (key != other.key) return false
if (get() != other.get()) return false
return true
}
}