refactor(LocalRunnerClient): co-locate watch service builder internals

Context:
Group WatchService build interfaces and registry implementation into a
single internal structure for better cohesion.

Partner-Main/src/main/java/work/slhaf/partner/core/action/runner/LocalRunnerClient.java

@@ -272,72 +272,71 @@ public class LocalRunnerClient extends RunnerClient {
         }));
     }
 
-    private WatchServiceBuild registerWatchService(Path path) {
-        return new LocalWatchServiceRegistry(path, watchService, executor);
+    private LocalWatchServiceBuild registerWatchService(Path path) {
+        return new LocalWatchServiceBuild.BuildRegistry(path, watchService, executor);
     }
 
-    private interface WatchServiceBuild {
-        WatchServiceBuild registerCreate(WatchEventHandler handler);
+    private interface LocalWatchServiceBuild {
+        LocalWatchServiceBuild registerCreate(EventHandler handler);
 
-        WatchServiceBuild registerModify(WatchEventHandler handler);
+        LocalWatchServiceBuild registerModify(EventHandler handler);
 
-        WatchServiceBuild registerDelete(WatchEventHandler handler);
+        LocalWatchServiceBuild registerDelete(EventHandler handler);
 
-        WatchServiceBuild registerOverflow(WatchEventHandler handler);
+        LocalWatchServiceBuild registerOverflow(EventHandler handler);
 
-        WatchServiceBuild initialLoad(WatchInitLoader loader);
+        LocalWatchServiceBuild initialLoad(InitLoader loader);
 
         void commit();
-    }
 
-    private interface WatchEventHandler {
+        interface EventHandler {
             void handle(Path thisDir, Path context);
         }
 
-    private interface WatchInitLoader {
+        interface InitLoader {
             void load(Path path);
         }
 
-    private static class LocalWatchServiceRegistry implements WatchServiceBuild {
+        class BuildRegistry implements LocalWatchServiceBuild {
 
-        private final Map<WatchEvent.Kind<?>, WatchEventHandler> handlers = new HashMap<>();
+            private final Map<WatchEvent.Kind<?>, EventHandler> handlers = new HashMap<>();
             private final Path path;
             private final WatchService watchService;
             private final ExecutorService executor;
-        private WatchInitLoader initLoader;
+            private InitLoader initLoader;
 
-        private LocalWatchServiceRegistry(Path path, WatchService watchService, ExecutorService executor) {
+            private BuildRegistry(Path path, WatchService watchService, ExecutorService executor) {
                 this.path = path;
                 this.watchService = watchService;
                 this.executor = executor;
             }
 
             @Override
-        public WatchServiceBuild registerCreate(WatchEventHandler handler) {
+            public LocalWatchServiceBuild registerCreate(EventHandler handler) {
                 handlers.put(StandardWatchEventKinds.ENTRY_CREATE, handler);
                 return this;
             }
 
             @Override
-        public WatchServiceBuild registerModify(WatchEventHandler handler) {
+            public LocalWatchServiceBuild registerModify(EventHandler handler) {
                 handlers.put(StandardWatchEventKinds.ENTRY_MODIFY, handler);
                 return this;
             }
 
             @Override
-        public WatchServiceBuild registerDelete(WatchEventHandler handler) {
+            public LocalWatchServiceBuild registerDelete(EventHandler handler) {
                 handlers.put(StandardWatchEventKinds.ENTRY_DELETE, handler);
                 return this;
             }
 
             @Override
-        public WatchServiceBuild registerOverflow(WatchEventHandler handler) {
+            public LocalWatchServiceBuild registerOverflow(EventHandler handler) {
                 handlers.put(StandardWatchEventKinds.OVERFLOW, handler);
                 return this;
             }
 
             @Override
-        public WatchServiceBuild initialLoad(WatchInitLoader loader) {
+            public LocalWatchServiceBuild initialLoad(InitLoader loader) {
                 initLoader = loader;
                 return this;
             }
@@ -366,7 +365,7 @@ public class LocalRunnerClient extends RunnerClient {
                                     // 若事件所在目录不为为 path，忽略并步入下一轮循环
                                     continue;
                                 }
-                            WatchEventHandler handler = handlers.get(kind);
+                                EventHandler handler = handlers.get(kind);
                                 if (handler == null) {
                                     continue;
                                 }
@@ -385,6 +384,7 @@ public class LocalRunnerClient extends RunnerClient {
             }
 
         }
+    }
 
     private sealed static abstract class LocalWatchServiceHelper permits LocalWatchServiceHelper.Dynamic, LocalWatchServiceHelper.Desc, LocalWatchServiceHelper.Common {
 
@@ -394,15 +394,15 @@ public class LocalRunnerClient extends RunnerClient {
             this.existedMetaActions = existedMetaActions;
         }
 
-        protected abstract @NotNull WatchInitLoader buildLoad();
+        protected abstract @NotNull LocalWatchServiceBuild.InitLoader buildLoad();
 
-        protected abstract @NotNull WatchEventHandler buildModify();
+        protected abstract @NotNull LocalWatchServiceBuild.EventHandler buildModify();
 
-        protected abstract @NotNull WatchEventHandler buildCreate();
+        protected abstract @NotNull LocalWatchServiceBuild.EventHandler buildCreate();
 
-        protected abstract @NotNull WatchEventHandler buildDelete();
+        protected abstract @NotNull LocalWatchServiceBuild.EventHandler buildDelete();
 
-        protected abstract @NotNull WatchEventHandler buildOverflow();
+        protected abstract @NotNull LocalWatchServiceBuild.EventHandler buildOverflow();
 
         private static final class Dynamic extends LocalWatchServiceHelper {
 
@@ -417,29 +417,31 @@ public class LocalRunnerClient extends RunnerClient {
             @NotNull
             protected WatchInitLoader buildLoad() {
                 return null;
+            protected LocalWatchServiceBuild.InitLoader buildLoad() {
             }
 
             @Override
             @NotNull
             protected WatchEventHandler buildModify() {
                 return null;
+            protected LocalWatchServiceBuild.EventHandler buildModify() {
             }
 
             @Override
             @NotNull
-            protected WatchEventHandler buildCreate() {
+            protected LocalWatchServiceBuild.EventHandler buildCreate() {
+                return buildModify();
+            }
+
+            @Override
+            @NotNull
+            protected LocalWatchServiceBuild.EventHandler buildDelete() {
                 return null;
             }
 
             @Override
             @NotNull
-            protected WatchEventHandler buildDelete() {
-                return null;
-            }
-
-            @Override
-            @NotNull
-            protected WatchEventHandler buildOverflow() {
+            protected LocalWatchServiceBuild.EventHandler buildOverflow() {
                 return null;
             }
         }
@@ -455,31 +457,31 @@ public class LocalRunnerClient extends RunnerClient {
 
             @Override
             @NotNull
-            protected WatchInitLoader buildLoad() {
+            protected LocalWatchServiceBuild.InitLoader buildLoad() {
                 return null;
             }
 
             @Override
             @NotNull
-            protected WatchEventHandler buildModify() {
+            protected LocalWatchServiceBuild.EventHandler buildModify() {
                 return null;
             }
 
             @Override
             @NotNull
-            protected WatchEventHandler buildCreate() {
+            protected LocalWatchServiceBuild.EventHandler buildCreate() {
                 return null;
             }
 
             @Override
             @NotNull
-            protected WatchEventHandler buildDelete() {
+            protected LocalWatchServiceBuild.EventHandler buildDelete() {
                 return null;
             }
 
             @Override
             @NotNull
-            protected WatchEventHandler buildOverflow() {
+            protected LocalWatchServiceBuild.EventHandler buildOverflow() {
                 return null;
             }
         }
@@ -495,31 +497,31 @@ public class LocalRunnerClient extends RunnerClient {
 
             @Override
             @NotNull
-            protected WatchInitLoader buildLoad() {
+            protected LocalWatchServiceBuild.InitLoader buildLoad() {
                 return null;
             }
 
             @Override
             @NotNull
-            protected WatchEventHandler buildModify() {
+            protected LocalWatchServiceBuild.EventHandler buildModify() {
                 return null;
             }
 
             @Override
             @NotNull
-            protected WatchEventHandler buildCreate() {
+            protected LocalWatchServiceBuild.EventHandler buildCreate() {
                 return null;
             }
 
             @Override
             @NotNull
-            protected WatchEventHandler buildDelete() {
+            protected LocalWatchServiceBuild.EventHandler buildDelete() {
                 return null;
             }
 
             @Override
             @NotNull
-            protected WatchEventHandler buildOverflow() {
+            protected LocalWatchServiceBuild.EventHandler buildOverflow() {
                 return null;
             }
         }