| /* |
| * 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.schemaengine.template; |
| |
| import org.apache.iotdb.commons.exception.IllegalPathException; |
| import org.apache.iotdb.tsfile.file.metadata.enums.CompressionType; |
| import org.apache.iotdb.tsfile.file.metadata.enums.TSDataType; |
| import org.apache.iotdb.tsfile.file.metadata.enums.TSEncoding; |
| import org.apache.iotdb.tsfile.utils.ReadWriteIOUtils; |
| import org.apache.iotdb.tsfile.write.schema.IMeasurementSchema; |
| import org.apache.iotdb.tsfile.write.schema.MeasurementSchema; |
| import org.apache.iotdb.tsfile.write.schema.VectorMeasurementSchema; |
| |
| import org.apache.commons.lang3.builder.HashCodeBuilder; |
| |
| import java.io.ByteArrayOutputStream; |
| import java.io.IOException; |
| import java.io.OutputStream; |
| import java.io.Serializable; |
| import java.nio.ByteBuffer; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.concurrent.ConcurrentHashMap; |
| |
| public class Template implements Serializable { |
| |
| private int id; |
| private String name; |
| private boolean isDirectAligned; |
| private Map<String, IMeasurementSchema> schemaMap; |
| |
| public Template() { |
| schemaMap = new ConcurrentHashMap<>(); |
| } |
| |
| public Template( |
| String name, |
| List<String> measurements, |
| List<TSDataType> dataTypes, |
| List<TSEncoding> encodings, |
| List<CompressionType> compressors) |
| throws IllegalPathException { |
| this(name, measurements, dataTypes, encodings, compressors, false); |
| } |
| |
| public Template( |
| String name, |
| List<String> measurements, |
| List<TSDataType> dataTypes, |
| List<TSEncoding> encodings, |
| List<CompressionType> compressors, |
| boolean isAligned) |
| throws IllegalPathException { |
| this.isDirectAligned = isAligned; |
| this.schemaMap = new ConcurrentHashMap<>(); |
| this.name = name; |
| for (int i = 0; i < measurements.size(); i++) { |
| if (schemaMap.containsKey(measurements.get(i))) { |
| throw new IllegalPathException("Path duplicated: " + measurements.get(i)); |
| } |
| IMeasurementSchema schema = |
| new MeasurementSchema( |
| measurements.get(i), dataTypes.get(i), encodings.get(i), compressors.get(i)); |
| schemaMap.put(schema.getMeasurementId(), schema); |
| } |
| } |
| |
| public int getId() { |
| return id; |
| } |
| |
| public void setId(int id) { |
| this.id = id; |
| } |
| |
| public String getName() { |
| return name; |
| } |
| |
| public void setName(String name) { |
| this.name = name; |
| } |
| |
| public Map<String, IMeasurementSchema> getSchemaMap() { |
| return schemaMap; |
| } |
| |
| public boolean hasSchema(String suffixPath) { |
| return schemaMap.containsKey(suffixPath); |
| } |
| |
| public IMeasurementSchema getSchema(String measurementId) { |
| return schemaMap.get(measurementId); |
| } |
| |
| public boolean isDirectAligned() { |
| return isDirectAligned; |
| } |
| |
| public int getMeasurementNumber() { |
| return schemaMap.size(); |
| } |
| |
| // region construct template tree |
| |
| private IMeasurementSchema constructSchema( |
| String nodeName, TSDataType dataType, TSEncoding encoding, CompressionType compressor) { |
| return new MeasurementSchema(nodeName, dataType, encoding, compressor); |
| } |
| |
| // endregion |
| |
| // region append of template |
| |
| public void addMeasurements( |
| String[] measurements, |
| TSDataType[] dataTypes, |
| TSEncoding[] encodings, |
| CompressionType[] compressors) |
| throws IllegalPathException { |
| // check exists |
| for (String measurement : measurements) { |
| if (schemaMap.containsKey(measurement)) { |
| throw new IllegalPathException(measurement, "path already exists"); |
| } |
| } |
| // construct |
| for (int i = 0; i < measurements.length; i++) { |
| IMeasurementSchema schema = |
| constructSchema(measurements[i], dataTypes[i], encodings[i], compressors[i]); |
| schemaMap.put(measurements[i], schema); |
| } |
| } |
| |
| public void addMeasurement( |
| String measurement, |
| TSDataType dataType, |
| TSEncoding encoding, |
| CompressionType compressionType) { |
| schemaMap.put(measurement, constructSchema(measurement, dataType, encoding, compressionType)); |
| } |
| |
| // endregion |
| |
| public void serialize(ByteBuffer buffer) { |
| ReadWriteIOUtils.write(id, buffer); |
| ReadWriteIOUtils.write(name, buffer); |
| ReadWriteIOUtils.write(isDirectAligned, buffer); |
| ReadWriteIOUtils.write(schemaMap.size(), buffer); |
| for (Map.Entry<String, IMeasurementSchema> entry : schemaMap.entrySet()) { |
| ReadWriteIOUtils.write(entry.getKey(), buffer); |
| entry.getValue().partialSerializeTo(buffer); |
| } |
| } |
| |
| public void serialize(OutputStream outputStream) throws IOException { |
| ReadWriteIOUtils.write(id, outputStream); |
| ReadWriteIOUtils.write(name, outputStream); |
| ReadWriteIOUtils.write(isDirectAligned, outputStream); |
| ReadWriteIOUtils.write(schemaMap.size(), outputStream); |
| for (Map.Entry<String, IMeasurementSchema> entry : schemaMap.entrySet()) { |
| ReadWriteIOUtils.write(entry.getKey(), outputStream); |
| entry.getValue().partialSerializeTo(outputStream); |
| } |
| } |
| |
| public ByteBuffer serialize() { |
| ByteArrayOutputStream outputStream = new ByteArrayOutputStream(); |
| try { |
| serialize(outputStream); |
| } catch (IOException ignored) { |
| // won't reach here |
| } |
| return ByteBuffer.wrap(outputStream.toByteArray()); |
| } |
| |
| public void deserialize(ByteBuffer buffer) { |
| id = ReadWriteIOUtils.readInt(buffer); |
| name = ReadWriteIOUtils.readString(buffer); |
| isDirectAligned = ReadWriteIOUtils.readBool(buffer); |
| int schemaSize = ReadWriteIOUtils.readInt(buffer); |
| schemaMap = new ConcurrentHashMap<>(schemaSize); |
| for (int i = 0; i < schemaSize; i++) { |
| String schemaName = ReadWriteIOUtils.readString(buffer); |
| byte flag = ReadWriteIOUtils.readByte(buffer); |
| IMeasurementSchema measurementSchema = null; |
| if (flag == (byte) 0) { |
| measurementSchema = MeasurementSchema.partialDeserializeFrom(buffer); |
| } else if (flag == (byte) 1) { |
| measurementSchema = VectorMeasurementSchema.partialDeserializeFrom(buffer); |
| } |
| schemaMap.put(schemaName, measurementSchema); |
| } |
| } |
| |
| @Override |
| public boolean equals(Object t) { |
| if (this == t) { |
| return true; |
| } |
| if (t == null || getClass() != t.getClass()) { |
| return false; |
| } |
| Template that = (Template) t; |
| return this.name.equals(that.name) && this.schemaMap.equals(that.schemaMap); |
| } |
| |
| @Override |
| public int hashCode() { |
| return new HashCodeBuilder(17, 37).append(name).append(schemaMap).toHashCode(); |
| } |
| } |