82 lines
1.8 KiB
Haxe
82 lines
1.8 KiB
Haxe
package lib;
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import haxe.Serializer;
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import haxe.Unserializer;
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import kernel.fs.FS;
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import haxe.ds.StringMap;
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/**
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Key value store with persistence.
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**/
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class KVStore {
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private var kvStore: StringMap<Dynamic> = new StringMap();
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public final namespace:String;
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public function new(namespace: String) {
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this.namespace = namespace;
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}
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public static function removeNamespace(namespace: String): Void {
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var nsFile = getNamespaceFile(namespace);
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FS.delete(nsFile);
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}
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public static function getStoreForClass(?pos:haxe.PosInfos) {
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var className = pos.className;
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return new KVStore(className);
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}
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private static function getNamespaceFile(namespace: String): String {
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return '/var/ns/$namespace';
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}
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public function load() {
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var nsFile = getNamespaceFile(this.namespace);
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if (FS.exists(nsFile)){
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var handle = FS.openRead(nsFile);
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parseFile(handle.readAll());
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}
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}
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public function save() {
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var handle = FS.openWrite(getNamespaceFile(this.namespace));
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handle.write(Serializer.run(this.kvStore));
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handle.close();
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}
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private function parseFile(content: String) {
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var unserializer = new Unserializer(content);
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this.kvStore = unserializer.unserialize();
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}
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public inline function set(key: String, value: Dynamic) {
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this.kvStore.set(key,value);
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}
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public inline function get<T>(key: String,?orElse:T = null): Null<T> {
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return this.kvStore.get(key) ?? orElse;
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}
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public inline function exists(key: String): Bool {
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return this.kvStore.exists(key);
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}
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public inline function clear() {
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this.kvStore.clear();
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}
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public inline function remove(key: String): Bool {
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return this.kvStore.remove(key);
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}
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public inline function keys(): Iterator<String> {
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return this.kvStore.keys();
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}
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public inline function keyValueIterator():KeyValueIterator<String, Dynamic> {
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return this.kvStore.keyValueIterator();
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}
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}
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