KKcorps commented on a change in pull request #6053: URL: https://github.com/apache/incubator-pinot/pull/6053#discussion_r494462493
########## File path: pinot-core/src/main/java/org/apache/pinot/core/operator/transform/function/AdditionWithPrecisionTransformFunction.java ########## @@ -0,0 +1,103 @@ +/** + * 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.pinot.core.operator.transform.function; + +import java.math.BigDecimal; +import java.math.MathContext; +import java.util.ArrayList; +import java.util.Arrays; +import java.util.List; +import java.util.Map; +import org.apache.pinot.common.function.scalar.DataTypeConversionFunctions; +import org.apache.pinot.core.common.DataSource; +import org.apache.pinot.core.operator.blocks.ProjectionBlock; +import org.apache.pinot.core.operator.transform.TransformResultMetadata; +import org.apache.pinot.core.plan.DocIdSetPlanNode; + + +public class AdditionWithPrecisionTransformFunction extends BaseTransformFunction { + + public static final String FUNCTION_NAME = "addWithPrecision"; + + private List<TransformFunction> _transformFunctions = new ArrayList<>(); + private BigDecimal[] _sums; + private Integer _precision = null; + + @Override + public String getName() { + return FUNCTION_NAME; + } + + @Override + public void init(List<TransformFunction> arguments, Map<String, DataSource> dataSourceMap) { + // Check that there are more than 1 arguments + if (arguments.size() < 3) { + throw new IllegalArgumentException("At least 3 arguments are required for ADD transform function"); + } + + for (TransformFunction argument : arguments) { + if (argument instanceof LiteralTransformFunction) { + if (_precision != null) { + throw new IllegalArgumentException("Only one precision value can be specified in ADD transform function"); + } + _precision = Integer.parseInt(((LiteralTransformFunction) argument).getLiteral()); + } else { + if (!argument.getResultMetadata().isSingleValue()) { + throw new IllegalArgumentException("All the arguments of ADD transform function must be single-valued"); + } + _transformFunctions.add(argument); + } + } + } + + @Override + public TransformResultMetadata getResultMetadata() { + return BYTES_SV_NO_DICTIONARY_METADATA; + } + + @Override + public byte[][] transformToBytesValuesSV(ProjectionBlock projectionBlock) { + if (_sums == null) { + _sums = new BigDecimal[DocIdSetPlanNode.MAX_DOC_PER_CALL]; + } + + int length = projectionBlock.getNumDocs(); + Arrays.fill(_sums, 0, length, new BigDecimal(0)); + MathContext mathContext; + if (_precision != null) { Review comment: resolved. ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: us...@infra.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: commits-unsubscr...@pinot.apache.org For additional commands, e-mail: commits-h...@pinot.apache.org
