Jackie-Jiang commented on a change in pull request #6668: URL: https://github.com/apache/incubator-pinot/pull/6668#discussion_r592618660
########## File path: pinot-core/src/main/java/org/apache/pinot/core/data/aggregator/SumPrecisionValueAggregator.java ########## @@ -0,0 +1,93 @@ +/** + * 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.data.aggregator; + +import java.math.BigDecimal; +import org.apache.pinot.common.function.AggregationFunctionType; +import org.apache.pinot.spi.data.FieldSpec.DataType; +import org.apache.pinot.spi.utils.BigDecimalUtils; + + +public class SumPrecisionValueAggregator implements ValueAggregator<Object, BigDecimal> { + public static final DataType AGGREGATED_VALUE_TYPE = DataType.BYTES; + + private int _maxByteSize; + + @Override + public AggregationFunctionType getAggregationType() { + return AggregationFunctionType.SUMPRECISION; + } + + @Override + public DataType getAggregatedValueType() { + return AGGREGATED_VALUE_TYPE; + } + + @Override + public BigDecimal getInitialAggregatedValue(Object rawValue) { + BigDecimal initialValue = toBigDecimal(rawValue); + _maxByteSize = Math.max(_maxByteSize, BigDecimalUtils.byteSize(initialValue)); + return initialValue; + } + + @Override + public BigDecimal applyRawValue(BigDecimal value, Object rawValue) { + value = value.add(toBigDecimal(rawValue)); + _maxByteSize = Math.max(_maxByteSize, BigDecimalUtils.byteSize(value)); + return value; + } + + private static BigDecimal toBigDecimal(Object rawValue) { + if (rawValue instanceof byte[]) { + return BigDecimalUtils.deserialize((byte[]) rawValue); + } + if (rawValue instanceof Integer || rawValue instanceof Long) { + return BigDecimal.valueOf(((Number) rawValue).longValue()); + } + return new BigDecimal(rawValue.toString()); Review comment: If the value can be parsed, we parse the value. Otherwise, the constructor should throw the exception ---------------------------------------------------------------- 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
