| /* |
| * 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.plan.execution.config.metadata; |
| |
| import org.apache.iotdb.commons.udf.UDFInformation; |
| import org.apache.iotdb.commons.udf.builtin.BuiltinAggregationFunction; |
| import org.apache.iotdb.commons.udf.builtin.BuiltinScalarFunction; |
| import org.apache.iotdb.commons.udf.service.UDFManagementService; |
| import org.apache.iotdb.db.queryengine.common.header.ColumnHeader; |
| import org.apache.iotdb.db.queryengine.common.header.ColumnHeaderConstant; |
| import org.apache.iotdb.db.queryengine.common.header.DatasetHeader; |
| import org.apache.iotdb.db.queryengine.common.header.DatasetHeaderFactory; |
| import org.apache.iotdb.db.queryengine.plan.execution.config.ConfigTaskResult; |
| import org.apache.iotdb.db.queryengine.plan.execution.config.IConfigTask; |
| import org.apache.iotdb.db.queryengine.plan.execution.config.executor.IConfigTaskExecutor; |
| import org.apache.iotdb.rpc.TSStatusCode; |
| |
| import com.google.common.util.concurrent.ListenableFuture; |
| import com.google.common.util.concurrent.SettableFuture; |
| import org.apache.tsfile.enums.TSDataType; |
| import org.apache.tsfile.read.common.block.TsBlockBuilder; |
| import org.apache.tsfile.utils.Binary; |
| import org.apache.tsfile.utils.BytesUtils; |
| |
| import java.nio.ByteBuffer; |
| import java.util.ArrayList; |
| import java.util.Comparator; |
| import java.util.List; |
| import java.util.stream.Collectors; |
| |
| import static org.apache.iotdb.commons.conf.IoTDBConstant.FUNCTION_TYPE_BUILTIN_SCALAR; |
| import static org.apache.iotdb.commons.conf.IoTDBConstant.FUNCTION_TYPE_BUILTIN_UDAF; |
| import static org.apache.iotdb.commons.conf.IoTDBConstant.FUNCTION_TYPE_BUILTIN_UDTF; |
| import static org.apache.iotdb.commons.conf.IoTDBConstant.FUNCTION_TYPE_EXTERNAL_UDAF; |
| import static org.apache.iotdb.commons.conf.IoTDBConstant.FUNCTION_TYPE_EXTERNAL_UDTF; |
| import static org.apache.iotdb.commons.conf.IoTDBConstant.FUNCTION_TYPE_NATIVE; |
| import static org.apache.iotdb.commons.conf.IoTDBConstant.FUNCTION_TYPE_UNKNOWN; |
| |
| public class ShowFunctionsTask implements IConfigTask { |
| |
| @Override |
| public ListenableFuture<ConfigTaskResult> execute(IConfigTaskExecutor configTaskExecutor) { |
| return configTaskExecutor.showFunctions(); |
| } |
| |
| public static void buildTsBlock( |
| List<ByteBuffer> allUDFInformation, SettableFuture<ConfigTaskResult> future) { |
| List<TSDataType> outputDataTypes = |
| ColumnHeaderConstant.showFunctionsColumnHeaders.stream() |
| .map(ColumnHeader::getColumnType) |
| .collect(Collectors.toList()); |
| TsBlockBuilder builder = new TsBlockBuilder(outputDataTypes); |
| List<UDFInformation> udfInformations = new ArrayList<>(); |
| if (allUDFInformation != null && !allUDFInformation.isEmpty()) { |
| for (ByteBuffer udfInformationByteBuffer : allUDFInformation) { |
| UDFInformation udfInformation = UDFInformation.deserialize(udfInformationByteBuffer); |
| udfInformations.add(udfInformation); |
| } |
| } |
| // native and built-in functions |
| udfInformations.addAll( |
| UDFManagementService.getInstance().getAllBuiltInTimeSeriesGeneratingInformation()); |
| |
| udfInformations.sort(Comparator.comparing(UDFInformation::getFunctionName)); |
| for (UDFInformation udfInformation : udfInformations) { |
| appendUDFInformation(builder, udfInformation); |
| } |
| appendNativeFunctions(builder); |
| appendBuiltInScalarFunctions(builder); |
| DatasetHeader datasetHeader = DatasetHeaderFactory.getShowFunctionsHeader(); |
| future.set(new ConfigTaskResult(TSStatusCode.SUCCESS_STATUS, builder.build(), datasetHeader)); |
| } |
| |
| private static void appendUDFInformation(TsBlockBuilder builder, UDFInformation udfInformation) { |
| builder.getTimeColumnBuilder().writeLong(0L); |
| builder.getColumnBuilder(0).writeBinary(BytesUtils.valueOf(udfInformation.getFunctionName())); |
| builder.getColumnBuilder(1).writeBinary(BytesUtils.valueOf(getFunctionType(udfInformation))); |
| builder.getColumnBuilder(2).writeBinary(BytesUtils.valueOf(udfInformation.getClassName())); |
| builder.declarePosition(); |
| } |
| |
| private static void appendNativeFunctions(TsBlockBuilder builder) { |
| final Binary functionType = BytesUtils.valueOf(FUNCTION_TYPE_NATIVE); |
| final Binary className = BytesUtils.valueOf(""); |
| for (String functionName : BuiltinAggregationFunction.getNativeFunctionNames()) { |
| builder.getTimeColumnBuilder().writeLong(0L); |
| builder.getColumnBuilder(0).writeBinary(BytesUtils.valueOf(functionName.toUpperCase())); |
| builder.getColumnBuilder(1).writeBinary(functionType); |
| builder.getColumnBuilder(2).writeBinary(className); |
| builder.declarePosition(); |
| } |
| } |
| |
| private static void appendBuiltInScalarFunctions(TsBlockBuilder builder) { |
| final Binary functionType = BytesUtils.valueOf(FUNCTION_TYPE_BUILTIN_SCALAR); |
| final Binary className = BytesUtils.valueOf(""); |
| for (String functionName : BuiltinScalarFunction.getNativeFunctionNames()) { |
| builder.getTimeColumnBuilder().writeLong(0L); |
| builder.getColumnBuilder(0).writeBinary(BytesUtils.valueOf(functionName.toUpperCase())); |
| builder.getColumnBuilder(1).writeBinary(functionType); |
| builder.getColumnBuilder(2).writeBinary(className); |
| builder.declarePosition(); |
| } |
| } |
| |
| private static String getFunctionType(UDFInformation udfInformation) { |
| String functionType = FUNCTION_TYPE_UNKNOWN; |
| if (udfInformation.isBuiltin()) { |
| if (UDFManagementService.getInstance().isUDTF(udfInformation.getFunctionName())) { |
| functionType = FUNCTION_TYPE_BUILTIN_UDTF; |
| } else if (UDFManagementService.getInstance().isUDAF(udfInformation.getFunctionName())) { |
| functionType = FUNCTION_TYPE_BUILTIN_UDAF; |
| } |
| } else { |
| if (UDFManagementService.getInstance().isUDTF(udfInformation.getFunctionName())) { |
| functionType = FUNCTION_TYPE_EXTERNAL_UDTF; |
| } else if (UDFManagementService.getInstance().isUDAF(udfInformation.getFunctionName())) { |
| functionType = FUNCTION_TYPE_EXTERNAL_UDAF; |
| } |
| } |
| return functionType; |
| } |
| } |