refactor: custom endpoints to rotuer function register for plugin

application/src/main/java/run/halo/app/plugin/BeanPostProcessorUtils.java

@@ -0,0 +1,50 @@
+package run.halo.app.plugin;
+
+import lombok.experimental.UtilityClass;
+import org.springframework.beans.factory.config.BeanDefinition;
+import org.springframework.beans.factory.support.BeanDefinitionRegistry;
+import org.springframework.beans.factory.support.RootBeanDefinition;
+import org.springframework.lang.Nullable;
+
+/**
+ * Utility class that allows for convenient registration of common bean post-processors for
+ * {@link PluginApplicationContext}.
+ *
+ * @author guqing
+ * @since 2.11.0
+ */
+@UtilityClass
+public class BeanPostProcessorUtils {
+
+    public static final String CUSTOM_ENDPOINT_PROCESSOR_BEAN_NAME =
+        "run.halo.app.plugin.pluginCustomEndpointBeanFactoryPostProcessor";
+
+    /**
+     * Register all relevant annotation post-processors in the given registry.
+     *
+     * @param registry the registry to operate on
+     */
+    public static void registerBeanPostProcessors(BeanDefinitionRegistry registry) {
+        registerBeanPostProcessors(registry, null);
+    }
+
+    /**
+     * Register all relevant annotation post-processors in the given registry.
+     *
+     * @param registry the registry to operate on
+     * @param source the configuration source element (already extracted)
+     * that this registration was triggered from. May be {@code null}
+     */
+    public static void registerBeanPostProcessors(
+        BeanDefinitionRegistry registry, @Nullable Object source) {
+
+        if (!registry.containsBeanDefinition(CUSTOM_ENDPOINT_PROCESSOR_BEAN_NAME)) {
+            RootBeanDefinition def = new RootBeanDefinition(
+                PluginCustomEndpointBeanFactoryPostProcessor.class);
+            def.setSource(source);
+            def.setRole(BeanDefinition.ROLE_INFRASTRUCTURE);
+            registry.registerBeanDefinition(CUSTOM_ENDPOINT_PROCESSOR_BEAN_NAME, def);
+        }
+        // add more post processors
+    }
+}

application/src/main/java/run/halo/app/plugin/PluginApplicationInitializer.java

@@ -36,6 +36,8 @@
  */
 @Slf4j
 public class PluginApplicationInitializer {
+
+
     protected final HaloPluginManager haloPluginManager;
 
     private final ExtensionContextRegistry contextRegistry = ExtensionContextRegistry.getInstance();
@@ -89,6 +91,8 @@ private PluginApplicationContext createPluginApplicationContext(String pluginId)
         AnnotationConfigUtils.registerAnnotationConfigProcessors(beanFactory);
         stopWatch.stop();
 
+        BeanPostProcessorUtils.registerBeanPostProcessors(beanFactory);
+
         beanFactory.registerSingleton("pluginContext", createPluginContext(plugin));
         // TODO deprecated
         beanFactory.registerSingleton("pluginWrapper", haloPluginManager.getPlugin(pluginId));

application/src/main/java/run/halo/app/plugin/PluginCustomEndpointBeanFactoryPostProcessor.java

@@ -0,0 +1,34 @@
+package run.halo.app.plugin;
+
+import org.springframework.beans.BeansException;
+import org.springframework.beans.factory.config.BeanFactoryPostProcessor;
+import org.springframework.beans.factory.config.ConfigurableListableBeanFactory;
+import org.springframework.lang.NonNull;
+import org.springframework.web.reactive.function.server.RouterFunction;
+import run.halo.app.core.extension.endpoint.CustomEndpoint;
+import run.halo.app.core.extension.endpoint.CustomEndpointsBuilder;
+
+/**
+ * <p>A {@link CustomEndpoint} initialization {@link BeanFactoryPostProcessor} to build
+ * {@link RouterFunction}s to bean factory.</p>
+ *
+ * @author guqing
+ * @since 2.11.0
+ */
+public class PluginCustomEndpointBeanFactoryPostProcessor implements BeanFactoryPostProcessor {
+
+    @Override
+    public void postProcessBeanFactory(@NonNull ConfigurableListableBeanFactory beanFactory)
+        throws BeansException {
+        String[] customEndpointBeans = beanFactory.getBeanNamesForType(CustomEndpoint.class);
+        if (customEndpointBeans.length == 0) {
+            return;
+        }
+        CustomEndpointsBuilder endpointBuilder = new CustomEndpointsBuilder();
+        for (String beanName : customEndpointBeans) {
+            CustomEndpoint customEndpoint = (CustomEndpoint) beanFactory.getBean(beanName);
+            endpointBuilder.add(customEndpoint);
+        }
+        beanFactory.registerSingleton("pluginCustomEndpointRouter", endpointBuilder.build());
+    }
+}