Config improvements

- Added component wrapper to ensure null safety
- Plugin/config properties can no longer be null

Chroma-Core/src/main/java/buttondevteam/lib/architecture/ButtonComponent.kt

@@ -0,0 +1,15 @@
+package buttondevteam.lib.architecture
+
+import org.bukkit.configuration.ConfigurationSection
+import org.bukkit.plugin.java.JavaPlugin
+
+/**
+ * A wrapper for plugin components. This is used internally.
+ */
+class ButtonComponent<TP : JavaPlugin>(
+    val plugin: TP,
+    saveAction: Runnable,
+    config: ConfigurationSection
+) {
+    val config = IHaveConfig(saveAction, config)
+}

Chroma-Core/src/main/java/buttondevteam/lib/architecture/Component.kt

@@ -16,12 +16,12 @@ import java.util.stream.Collectors
  * Configuration is based on class name
  */
 @HasConfig(global = false) //Used for obtaining javadoc
-abstract class Component<TP : JavaPlugin?> {
+abstract class Component<TP : JavaPlugin> {
     var isEnabled = false
+    private var wrapper: ButtonComponent<TP>? = null
 
-    var plugin: TP? = null
-
-    val config = IHaveConfig(null)
+    val config get() = wrapper!!.config
+    val plugin get() = wrapper!!.plugin
 
     private val data //TODO
         : IHaveConfig? = null
@@ -32,11 +32,11 @@ abstract class Component<TP : JavaPlugin?> {
             .orElse(true))
 
     fun log(message: String) {
-        plugin!!.logger.info("[$className] $message")
+        plugin.logger.info("[$className] $message")
     }
 
     fun logWarn(message: String) {
-        plugin!!.logger.warning("[$className] $message")
+        plugin.logger.warning("[$className] $message")
     }
 
     /**
@@ -45,7 +45,7 @@ abstract class Component<TP : JavaPlugin?> {
      *
      * @param plugin Plugin object
      */
-    protected open fun register(plugin: JavaPlugin?) {}
+    protected open fun register(plugin: JavaPlugin) {}
 
     /**
      * Unregisters the module, when called by the JavaPlugin class.
@@ -54,7 +54,7 @@ abstract class Component<TP : JavaPlugin?> {
      *
      * @param plugin Plugin object
      */
-    protected open fun unregister(plugin: JavaPlugin?) {}
+    protected open fun unregister(plugin: JavaPlugin) {}
 
     /**
      * Enables the module, when called by the JavaPlugin class. Call
@@ -100,25 +100,19 @@ abstract class Component<TP : JavaPlugin?> {
      * @param defaultProvider A mapping between config paths and config generators
      * @return A map containing configs
      */
-    fun getConfigMap(key: String?, defaultProvider: Map<String, Consumer<IHaveConfig?>>): Map<String, IHaveConfig> {
+    fun getConfigMap(key: String, defaultProvider: Map<String, Consumer<IHaveConfig>>): Map<String, IHaveConfig> {
         val c: ConfigurationSection = config.config
         var cs = c.getConfigurationSection(key)
         if (cs == null) cs = c.createSection(key)
-        val res = cs!!.getValues(false).entries.stream()
-            .filter { (_, value): Map.Entry<String?, Any?> -> value is ConfigurationSection }
-            .collect(
-                Collectors.toMap<Map.Entry<String?, Any?>, String, IHaveConfig>(
+        val res = cs.getValues(false).entries.stream()
+            .filter { (_, value) -> value is ConfigurationSection }
+            .collect(Collectors.toMap(
                 { it.key },
-                    { (_, value): Map.Entry<String?, Any?> ->
-                        val conf = IHaveConfig { plugin!!.saveConfig() }
-                        conf.reset(value as ConfigurationSection?)
-                        conf
-                    })
-            )
+                { (_, value) -> IHaveConfig(plugin::saveConfig, value as ConfigurationSection) }
+            ))
         if (res.isEmpty()) {
             for ((key1, value) in defaultProvider) {
-                val conf = IHaveConfig { plugin!!.saveConfig() }
-                conf.reset(cs.createSection(key1))
+                val conf = IHaveConfig(plugin::saveConfig, cs.createSection(key1))
                 value.accept(conf)
                 res[key1] = conf
             }
@@ -159,7 +153,7 @@ abstract class Component<TP : JavaPlugin?> {
             return registerUnregisterComponent(plugin, component, false)
         }
 
-        fun <T : JavaPlugin> registerUnregisterComponent(
+        private fun <T : JavaPlugin> registerUnregisterComponent(
             plugin: T,
             component: Component<T>,
             register: Boolean
@@ -184,9 +178,7 @@ abstract class Component<TP : JavaPlugin?> {
                         )
                         return false
                     }
-                    component.plugin = plugin // TODO: Perhaps construct a new object with these initialized
-                    component.config.saveAction = Runnable { plugin.saveConfig() }
-                    updateConfig(plugin, component)
+                    val wrapper = ButtonComponent(plugin, { plugin.saveConfig() }, getConfigSection(plugin, component))
                     component.register(plugin)
                     components[component.javaClass] = component
                     if (plugin is ButtonPlugin) (plugin as ButtonPlugin).componentStack.push(component)
@@ -250,7 +242,7 @@ abstract class Component<TP : JavaPlugin?> {
             if (component.isEnabled == enabled) return  //Don't do anything
             if (enabled.also { component.isEnabled = it }) {
                 try {
-                    updateConfig(component.plugin!!, component)
+                    getConfigSection(component.plugin!!, component)
                     component.enable()
                     if (ButtonPlugin.configGenAllowed(component)) {
                         IHaveConfig.pregenConfig(component, null)
@@ -276,15 +268,13 @@ abstract class Component<TP : JavaPlugin?> {
             }
         }
 
-        @JvmStatic
-        fun updateConfig(plugin: JavaPlugin, component: Component<*>) {
-            if (plugin.config != null) { //Production
+        private fun getConfigSection(plugin: JavaPlugin, component: Component<*>): ConfigurationSection {
             var compconf = plugin.config.getConfigurationSection("components")
             if (compconf == null) compconf = plugin.config.createSection("components")
-                var configSect = compconf!!.getConfigurationSection(component.className)
+            var configSect = compconf.getConfigurationSection(component.className)
             if (configSect == null) configSect = compconf.createSection(component.className)
-                component.config.reset(configSect)
-            } //Testing: it's already set
+            return configSect
+            // TODO: Support tests (provide Bukkit configuration for tests)
         }
 
         /**

Chroma-Core/src/main/java/buttondevteam/lib/architecture/ConfigData.kt

@@ -44,8 +44,9 @@ class ConfigData<T> internal constructor(
         value = null
     }
 
-    override fun get(): T? {
-        if (value != null) return value //Speed things up
+    override fun get(): T {
+        val cachedValue = value
+        if (cachedValue != null) return cachedValue //Speed things up
         val config = config?.config
         var `val`: Any?
         if (config == null || !config.isSet(path)) {
@@ -54,14 +55,14 @@ class ConfigData<T> internal constructor(
         } else `val` = config.get(path) //config==null: testing
         if (`val` == null) //If it's set to null explicitly
             `val` = pdef
-        fun convert(_val: Any?, _pdef: Any?): Any? {
-            return if (_pdef is Number) //If we expect a number
-                if (_val is Number)
-                    ChromaUtils.convertNumber(_val as Number?, _pdef.javaClass as Class<out Number?>)
-                else _pdef //If we didn't get a number, return default (which is a number)
-            else if (_val is List<*> && _pdef != null && _pdef.javaClass.isArray)
-                _val.toTypedArray()
-            else _val
+        fun convert(cval: Any?, cpdef: Any?): Any? {
+            return if (cpdef is Number) //If we expect a number
+                if (cval is Number)
+                    ChromaUtils.convertNumber(cval, cpdef.javaClass)
+                else cpdef //If we didn't get a number, return default (which is a number)
+            else if (cval is List<*> && cpdef != null && cpdef.javaClass.isArray)
+                cval.toTypedArray()
+            else cval
         }
         return getter.apply(convert(`val`, pdef)).also { value = it }
     }
@@ -113,16 +114,19 @@ class ConfigData<T> internal constructor(
         fun signalChange(config: IHaveConfig) {
             val cc = config.config
             val sa = config.saveAction
+            val root = cc.root
+            if (root == null) {
+                MainPlugin.Instance.logger.warning("Attempted to save config with no root! Name: ${config.config.name}")
+                return
+            }
             if (!saveTasks.containsKey(cc.root)) {
                 synchronized(saveTasks) {
                     saveTasks.put(
-                        cc.root,
+                        root,
                         SaveTask(Bukkit.getScheduler().runTaskLaterAsynchronously(MainPlugin.Instance, {
-                            synchronized(
-                                saveTasks
-                            ) {
-                                saveTasks.remove(cc.getRoot())
-                                sa!!.run()
+                            synchronized(saveTasks) {
+                                saveTasks.remove(root)
+                                sa.run()
                             }
                         }, 100), sa)
                     )
@@ -144,8 +148,8 @@ class ConfigData<T> internal constructor(
             return false
         }
 
-        fun <T> builder(config: IHaveConfig, path: String): ConfigDataBuilder<T> {
-            return ConfigDataBuilder(config, path)
+        fun <T> builder(config: IHaveConfig, path: String, primitiveDef: Any?, getter: Function<Any?, T>, setter: Function<T, Any?>): ConfigDataBuilder<T> {
+            return ConfigDataBuilder(config, path, primitiveDef, getter, setter)
         }
     }
 }

Chroma-Core/src/main/java/buttondevteam/lib/architecture/IHaveConfig.kt

@@ -43,13 +43,14 @@ class IHaveConfig(
      * @param T       The type of this variable (can be any class)
      * @return The data object that can be used to get or set the value
      */
-    fun <T> getConfig(
+    @Suppress("UNCHECKED_CAST")
+    fun <T> getConfig( // TODO: Remove
         path: String,
         def: T,
         getter: Function<Any?, T>? = null,
         setter: Function<T, Any?>? = null
     ): ConfigDataBuilder<T> {
-        return ConfigData.builder(this, path)
+        return ConfigData.builder(this, path, if (setter != null) setter.apply(def) else def, getter ?: Function { it as T }, setter ?: Function { it })
     }
 
     fun onConfigBuild(config: IConfigData<*>) {
@@ -77,7 +78,7 @@ class IHaveConfig(
         setter: Function<T, Any?>? = null,
         readOnly: Boolean = false
     ): ConfigData<T> {
-        return getData(path, getter ?: Function { it as T }, setter ?: Function { it }, def)
+        return getData(path, getter ?: Function { it as T }, setter ?: Function { it }, def, readOnly)
     }
 
     /**
@@ -112,7 +113,7 @@ class IHaveConfig(
      * @param <T>  The type of this variable (only use primitives or String)
      * @return The data object that can be used to get or set the value
     </T> */
-    fun <T> getData(path: String, def: Supplier<T>): ConfigData<T> {
+    fun <T> getData(path: String, def: Supplier<T>): ConfigData<T> { // TODO: Remove
         var data = datamap[path]
         if (data == null) {
             val defval = def.get()