| /* |
| * 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.carbondata.core.metadata.datatype; |
| |
| import java.io.Serializable; |
| |
| public class DataType implements Serializable { |
| |
| private static final long serialVersionUID = 19371726L; |
| |
| // id is used for comparison and serialization/deserialization |
| private int id; |
| private int precedenceOrder; |
| private String name; |
| |
| // size of the value of this data type, negative value means variable length |
| private int sizeInBytes; |
| |
| DataType(int id, int precedenceOrder, String name, int sizeInBytes) { |
| this.id = id; |
| this.precedenceOrder = precedenceOrder; |
| this.name = name; |
| this.sizeInBytes = sizeInBytes; |
| } |
| |
| public int getPrecedenceOrder() { |
| return precedenceOrder; |
| } |
| |
| public String getName() { |
| return name; |
| } |
| |
| public int getSizeInBytes() { |
| return sizeInBytes; |
| } |
| |
| public int getSizeBits() { |
| return (int) (Math.log(getSizeInBytes()) / Math.log(2)); |
| } |
| |
| public int getId() { |
| return id; |
| } |
| |
| public boolean isComplexType() { |
| return false; |
| } |
| |
| @Override |
| public String toString() { |
| return getName(); |
| } |
| |
| public static final char DOUBLE_MEASURE_CHAR = 'n'; |
| public static final char STRING_CHAR = 's'; |
| public static final char VARCHAR_CHAR = 'v'; |
| public static final char TIMESTAMP_CHAR = 't'; |
| public static final char DATE_CHAR = 'x'; |
| public static final char BYTE_ARRAY_CHAR = 'y'; |
| public static final char BYTE_VALUE_MEASURE_CHAR = 'c'; |
| public static final char BIG_DECIMAL_MEASURE_CHAR = 'b'; |
| public static final char BIG_INT_MEASURE_CHAR = 'd'; |
| |
| public static char convertType(DataType dataType) { |
| if (dataType == DataTypes.BYTE || |
| dataType == DataTypes.BOOLEAN || |
| dataType == DataTypes.SHORT || |
| dataType == DataTypes.SHORT_INT || |
| dataType == DataTypes.INT || |
| dataType == DataTypes.LONG) { |
| return BIG_INT_MEASURE_CHAR; |
| } else if (dataType == DataTypes.DOUBLE || dataType == DataTypes.FLOAT) { |
| return DOUBLE_MEASURE_CHAR; |
| } else if (DataTypes.isDecimal(dataType)) { |
| return BIG_DECIMAL_MEASURE_CHAR; |
| } else if (dataType == DataTypes.STRING) { |
| return STRING_CHAR; |
| } else if (dataType == DataTypes.VARCHAR) { |
| return VARCHAR_CHAR; |
| } else if (dataType == DataTypes.TIMESTAMP) { |
| return TIMESTAMP_CHAR; |
| } else if (dataType == DataTypes.DATE) { |
| return DATE_CHAR; |
| } else if (dataType == DataTypes.BYTE_ARRAY || dataType == DataTypes.BINARY) { |
| return BYTE_ARRAY_CHAR; |
| } else { |
| throw new RuntimeException("Unexpected type: " + dataType); |
| } |
| } |
| |
| public static DataType getDataType(char type) { |
| switch (type) { |
| case BIG_INT_MEASURE_CHAR: |
| return DataTypes.LONG; |
| case DOUBLE_MEASURE_CHAR: |
| return DataTypes.DOUBLE; |
| case BIG_DECIMAL_MEASURE_CHAR: |
| return DataTypes.createDefaultDecimalType(); |
| default: |
| throw new RuntimeException("Unexpected type: " + type); |
| } |
| } |
| |
| @Override |
| public int hashCode() { |
| final int prime = 31; |
| int result = 1; |
| result = prime * result + getName().hashCode(); |
| return result; |
| } |
| |
| @Override |
| public boolean equals(Object obj) { |
| if (this == obj) { |
| return true; |
| } |
| if (obj == null) { |
| return false; |
| } |
| if (getClass() != obj.getClass()) { |
| return false; |
| } |
| if (!this.getName().equalsIgnoreCase(((DataType) obj).getName())) { |
| return false; |
| } |
| return true; |
| } |
| } |