[GitHub] [incubator-shardingsphere] dongzl commented on a change in pull request #3620: Apollo as a ConfigCenter.

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

dongzl commented on a change in pull request #3620: Apollo as a ConfigCenter.
URL: https://github.com/apache/incubator-shardingsphere/pull/3620#discussion_r352270210
 
 

 ##########
 File path: sharding-orchestration/sharding-orchestration-center/src/main/java/org/apache/shardingsphere/orchestration/center/instance/node/ConfigTreeNode.java
 ##########
 @@ -0,0 +1,130 @@
+/*
+ * 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.shardingsphere.orchestration.center.instance.node;
+
+import com.google.common.base.Joiner;
+import com.google.common.collect.Sets;
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+import lombok.Setter;
+
+import java.util.HashSet;
+import java.util.Map;
+import java.util.Set;
+import java.util.concurrent.ConcurrentHashMap;
+
+/**
+ * Config Tree Node.
+ *
+ * @author dongzonglei
+ * @author wangguangyuan
+ * @author sunbufu
+ */
+@Getter
+@Setter
+@AllArgsConstructor
+public final class ConfigTreeNode {
+    
+    private static final String SHARDING_SPHERE_KEY_ROOT = "/";
+    
+    private static final String SHARDING_SPHERE_KEY_SEPARATOR = "/";
+    
+    private static Map<String, Set<String>> childrenKeyMap = new ConcurrentHashMap<>();
+    
+    private ConfigTreeNode parentNode;
+    
+    private String absolutePath;
+    
+    private Set<ConfigTreeNode> childrenNodes;
+    
+    /**
+     * init tree.
+     * 
+     * @param instanceKeys instance Key set
+     * @param keySeparator key separator
+     */
+    public void initTree(final Set<String> instanceKeys, final String keySeparator) {
 
 Review comment:
   OK, I fix it.

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