From e6cca76b538f8a75080d40f99f85c3201b2364cb Mon Sep 17 00:00:00 2001
From: wangzhuo <wangzhuo@shuwen.com>
Date: Sun, 29 Jan 2023 22:01:55 +0800
Subject: [PATCH] feature:add thread pool adapter spi ,support customer diy
 thread pool

---
 .../DynamicThreadPoolAdapterChoose.java       | 18 +++++++++++++
 .../spi/DynamicThreadPoolAdapterSPI.java      | 25 +++++++++++++++++++
 2 files changed, 43 insertions(+)
 create mode 100644 hippo4j-core/src/main/java/cn/hippo4j/core/executor/support/spi/DynamicThreadPoolAdapterSPI.java

diff --git a/hippo4j-core/src/main/java/cn/hippo4j/core/executor/support/adpter/DynamicThreadPoolAdapterChoose.java b/hippo4j-core/src/main/java/cn/hippo4j/core/executor/support/adpter/DynamicThreadPoolAdapterChoose.java
index 55541893..b74421ec 100644
--- a/hippo4j-core/src/main/java/cn/hippo4j/core/executor/support/adpter/DynamicThreadPoolAdapterChoose.java
+++ b/hippo4j-core/src/main/java/cn/hippo4j/core/executor/support/adpter/DynamicThreadPoolAdapterChoose.java
@@ -17,9 +17,12 @@
 
 package cn.hippo4j.core.executor.support.adpter;
 
+import cn.hippo4j.common.spi.DynamicThreadPoolServiceLoader;
 import cn.hippo4j.core.executor.DynamicThreadPoolExecutor;
+import cn.hippo4j.core.executor.support.spi.DynamicThreadPoolAdapterSPI;
 
 import java.util.ArrayList;
+import java.util.Collection;
 import java.util.List;
 import java.util.Optional;
 import java.util.concurrent.Executor;
@@ -36,6 +39,8 @@ public class DynamicThreadPoolAdapterChoose {
         DYNAMIC_THREAD_POOL_ADAPTERS.add(new TransmittableThreadLocalExecutorServiceAdapter());
         DYNAMIC_THREAD_POOL_ADAPTERS.add(new ThreadPoolTaskExecutorAdapter());
         DYNAMIC_THREAD_POOL_ADAPTERS.add(new ZipkinExecutorAdapter());
+        DynamicThreadPoolServiceLoader.register(DynamicThreadPoolAdapterSPI.class);
+        loadCustomerAdapter();
     }
 
     /**
@@ -75,4 +80,17 @@ public class DynamicThreadPoolAdapterChoose {
             dynamicThreadPoolAdapterOptional.get().replace(executor, dynamicThreadPoolExecutor);
         }
     }
+
+    /**
+     * load SPI customer adapter
+     */
+    private static void loadCustomerAdapter() {
+        Collection<DynamicThreadPoolAdapterSPI> instances = DynamicThreadPoolServiceLoader.getSingletonServiceInstances(DynamicThreadPoolAdapterSPI.class);
+        for (DynamicThreadPoolAdapterSPI instance : instances) {
+            DynamicThreadPoolAdapter adapter = instance.adapter();
+            if (adapter != null) {
+                DYNAMIC_THREAD_POOL_ADAPTERS.add(adapter);
+            }
+        }
+    }
 }
diff --git a/hippo4j-core/src/main/java/cn/hippo4j/core/executor/support/spi/DynamicThreadPoolAdapterSPI.java b/hippo4j-core/src/main/java/cn/hippo4j/core/executor/support/spi/DynamicThreadPoolAdapterSPI.java
new file mode 100644
index 00000000..9f8adcd1
--- /dev/null
+++ b/hippo4j-core/src/main/java/cn/hippo4j/core/executor/support/spi/DynamicThreadPoolAdapterSPI.java
@@ -0,0 +1,25 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You 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 cn.hippo4j.core.executor.support.spi;
+
+import cn.hippo4j.core.executor.support.adpter.DynamicThreadPoolAdapter;
+
+public interface DynamicThreadPoolAdapterSPI {
+    String name();
+    DynamicThreadPoolAdapter adapter();
+}