xiangfu0 commented on code in PR #11262: URL: https://github.com/apache/pinot/pull/11262#discussion_r1290436300
########## pinot-spi/src/main/java/org/apache/pinot/spi/data/readers/Vector.java: ########## @@ -0,0 +1,261 @@ +/** + * 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.spi.data.readers; + +import com.fasterxml.jackson.annotation.JsonIgnore; +import java.util.Arrays; + + +public class Vector implements Comparable<Vector> { + public enum VectorType { + FLOAT, INT + } + + private int _dimension; + private float[] _floatValues; + private int[] _intValues; + private VectorType _type; + + public Vector(int dimension, float[] values) { + _dimension = dimension; + _floatValues = values; + _type = VectorType.FLOAT; + } + + public Vector(int dimension, int[] values) { + _dimension = dimension; + _intValues = values; + _type = VectorType.INT; + } + + public int getDimension() { + return _dimension; + } + + public void setDimension(int dimension) { + _dimension = dimension; + } + + @JsonIgnore + public float[] getFloatValues() { + if (_type != VectorType.FLOAT) { + throw new IllegalStateException("Vector type is not FLOAT"); + } + return _floatValues; + } + + @JsonIgnore + public int[] getIntValues() { + if (_type != VectorType.INT) { + throw new IllegalStateException("Vector type is not INT"); + } + return _intValues; + } + + public void setValues(float[] values) { + _floatValues = values; + _type = VectorType.FLOAT; + } + + public void setValues(int[] values) { + _intValues = values; + _type = VectorType.INT; + } + + public VectorType getType() { + return _type; + } + + public static Vector fromString(String value) { + String[] tokens = value.split(","); + VectorType vectorType = VectorType.valueOf(tokens[0].toUpperCase()); + int dimension = Integer.parseInt(tokens[1]); + switch (vectorType) { + case FLOAT: { + float[] result = new float[tokens.length - 2]; + for (int i = 2; i < tokens.length; i++) { + result[i - 2] = Float.parseFloat(tokens[i]); + } + return new Vector(dimension, result); + } + case INT: { + int[] result = new int[tokens.length - 2]; + for (int i = 2; i < tokens.length; i++) { + result[i - 2] = Integer.parseInt(tokens[i]); + } + return new Vector(dimension, result); + } + default: + throw new IllegalArgumentException("Unsupported vector type: " + vectorType); + } + } + + public String toString() { + StringBuilder sb = new StringBuilder(); + sb.append(_type); + sb.append(","); + sb.append(_dimension); + sb.append(","); + switch (_type) { + case FLOAT: + for (int i = 0; i < _floatValues.length; i++) { + sb.append(_floatValues[i]); + if (i < _floatValues.length - 1) { + sb.append(","); + } + } + break; + case INT: + for (int i = 0; i < _intValues.length; i++) { + sb.append(_intValues[i]); + if (i < _intValues.length - 1) { + sb.append(","); + } + } + break; + default: + throw new IllegalArgumentException("Unsupported vector type: " + _type); + } + return sb.toString(); + } + + public byte[] toBytes() { + int size = _type == VectorType.FLOAT ? _floatValues.length : _intValues.length; + byte[] result = new byte[5 + 4 * size]; // 1 byte for type, 4 for dimension + int offset = 0; + result[offset++] = (byte) (_type == VectorType.FLOAT ? 0 : 1); + int intBits = _dimension; Review Comment: this can be var lenght -- 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. To unsubscribe, e-mail: commits-unsubscr...@pinot.apache.org 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
