| /* |
| * 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.iotdb.db.queryengine.common.schematree.node; |
| |
| import org.apache.iotdb.tsfile.utils.ReadWriteIOUtils; |
| |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.io.OutputStream; |
| import java.util.HashMap; |
| import java.util.Iterator; |
| import java.util.Map; |
| |
| public class SchemaInternalNode extends SchemaNode { |
| |
| protected Map<String, SchemaNode> children = new HashMap<>(); |
| |
| public SchemaInternalNode(String name) { |
| super(name); |
| } |
| |
| @Override |
| public SchemaNode getChild(String name) { |
| return children.get(name); |
| } |
| |
| @Override |
| public void addChild(String name, SchemaNode child) { |
| children.put(name, child); |
| } |
| |
| @Override |
| public void replaceChild(String name, SchemaNode newChild) { |
| SchemaNode oldChild = children.get(name); |
| oldChild.copyDataTo(newChild); |
| children.replace(name, newChild); |
| } |
| |
| @Override |
| public void copyDataTo(SchemaNode schemaNode) { |
| if (schemaNode.isMeasurement()) { |
| return; |
| } |
| for (SchemaNode child : children.values()) { |
| schemaNode.addChild(child.getName(), child); |
| } |
| } |
| |
| @Override |
| public Map<String, SchemaNode> getChildren() { |
| return children; |
| } |
| |
| @Override |
| public Iterator<SchemaNode> getChildrenIterator() { |
| return children.values().iterator(); |
| } |
| |
| @Override |
| public byte getType() { |
| return SCHEMA_INTERNAL_NODE; |
| } |
| |
| public void serialize(OutputStream outputStream) throws IOException { |
| serializeChildren(outputStream); |
| |
| ReadWriteIOUtils.write(getType(), outputStream); |
| ReadWriteIOUtils.write(name, outputStream); |
| ReadWriteIOUtils.write(children.size(), outputStream); |
| } |
| |
| protected void serializeChildren(OutputStream outputStream) throws IOException { |
| for (SchemaNode child : children.values()) { |
| child.serialize(outputStream); |
| } |
| } |
| |
| public static SchemaInternalNode deserialize(InputStream inputStream) throws IOException { |
| String name = ReadWriteIOUtils.readString(inputStream); |
| |
| return new SchemaInternalNode(name); |
| } |
| } |