[GitHub] [dubbo] ningboliu commented on a diff in pull request #10745: Adaptive loadbalance

[GitBox <gi...@apache.org>]

ningboliu commented on code in PR #10745:
URL: https://github.com/apache/dubbo/pull/10745#discussion_r1031975222


##########
dubbo-cluster/src/main/java/org/apache/dubbo/rpc/cluster/loadbalance/AdaptiveLoadBalance.java:
##########
@@ -0,0 +1,140 @@
+/*
+ * 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 org.apache.dubbo.rpc.cluster.loadbalance;
+
+import org.apache.dubbo.common.URL;
+import org.apache.dubbo.rpc.AdaptiveMetrics;
+import org.apache.dubbo.rpc.Constants;
+import org.apache.dubbo.rpc.Invocation;
+import org.apache.dubbo.rpc.Invoker;
+import org.apache.dubbo.rpc.RpcContext;
+import org.apache.dubbo.rpc.TimeoutCountDown;
+import org.apache.dubbo.rpc.model.ApplicationModel;
+import org.apache.dubbo.rpc.model.ScopeModelAware;
+import org.apache.dubbo.rpc.support.RpcUtils;
+
+import java.util.List;
+import java.util.concurrent.ThreadLocalRandom;
+import java.util.concurrent.TimeUnit;
+
+import static org.apache.dubbo.common.constants.CommonConstants.TIME_COUNTDOWN_KEY;
+import static org.apache.dubbo.common.constants.CommonConstants.DEFAULT_TIMEOUT;
+
+/**
+ * AdaptiveLoadBalance
+ * </p>
+ */
+public class AdaptiveLoadBalance extends AbstractLoadBalance implements ScopeModelAware {
+
+    public static final String NAME = "adaptive";
+
+    //default key
+    private String attachmentKey = "mem,load";
+
+    private final int default_timeout = 30_000;
+
+    private ApplicationModel scopeModel;
+
+    private AdaptiveMetrics adaptiveMetrics;
+
+    @Override
+    public void setApplicationModel(ApplicationModel scopeModel){
+        AdaptiveMetrics bean = scopeModel.getBeanFactory().getBean(AdaptiveMetrics.class);
+        if (bean == null) {
+            scopeModel.getBeanFactory().registerBean(new AdaptiveMetrics());
+        }
+        this.scopeModel = scopeModel;
+    }
+
+    private AdaptiveMetrics getAdaptiveMetricsInstance(){
+        if (adaptiveMetrics == null) {
+            adaptiveMetrics = scopeModel.getBeanFactory().getBean(AdaptiveMetrics.class);
+        }
+        return adaptiveMetrics;
+    }
+
+    @Override
+    protected <T> Invoker<T> doSelect(List<Invoker<T>> invokers, URL url, Invocation invocation) {
+        Invoker invoker = selectByP2C(invokers,url,invocation);
+        invocation.setAttachment(Constants.ADAPTIVE_LOADBALANCE_ATTACHMENT_KEY,attachmentKey);

Review Comment:
   Need to pass parameters to provider



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