| /* |
| * 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.flink.table.plan.util |
| |
| import java.math.{BigDecimal => JBigDecimal} |
| |
| import org.apache.calcite.rex.RexLiteral |
| import org.apache.calcite.sql.`type`.SqlTypeName._ |
| import org.apache.flink.table.api.TableException |
| |
| object RexLiteralUtil { |
| def literalValue(literal: RexLiteral): Object = { |
| val value = literal.getValue3 |
| // null value with type |
| if (value == null) { |
| return null |
| } |
| // non-null values |
| val ret = literal.getType.getSqlTypeName match { |
| |
| case TINYINT => |
| val decimal = BigDecimal(value.asInstanceOf[JBigDecimal]) |
| if (decimal.isValidByte) { |
| decimal.byteValue() |
| } |
| else { |
| throw new TableException("Decimal can not be converted to byte.") |
| } |
| |
| case SMALLINT => |
| val decimal = BigDecimal(value.asInstanceOf[JBigDecimal]) |
| if (decimal.isValidShort) { |
| decimal.shortValue() |
| } |
| else { |
| throw new TableException("Decimal can not be converted to short.") |
| } |
| |
| case INTEGER => |
| val decimal = BigDecimal(value.asInstanceOf[JBigDecimal]) |
| if (decimal.isValidInt) { |
| decimal.intValue() |
| } |
| else { |
| throw new TableException("Decimal can not be converted to integer.") |
| } |
| |
| case BIGINT => |
| val decimal = BigDecimal(value.asInstanceOf[JBigDecimal]) |
| if (decimal.isValidLong) { |
| decimal.longValue() |
| } |
| else { |
| throw new TableException("Decimal can not be converted to long.") |
| } |
| |
| case FLOAT => |
| val floatValue = value.asInstanceOf[JBigDecimal].floatValue() |
| floatValue match { |
| case Float.NaN => |
| case Float.NegativeInfinity => |
| case Float.PositiveInfinity => |
| throw new TableException( |
| "Do not support java.lang.Float.NaN|NEGATIVE_INFINITY|POSITIVE_INFINITY") |
| case _ => floatValue |
| } |
| |
| case DOUBLE => |
| val doubleValue = value.asInstanceOf[JBigDecimal].doubleValue() |
| doubleValue match { |
| case Double.NaN => |
| case Double.NegativeInfinity => |
| case Double.PositiveInfinity => |
| throw new TableException( |
| "Do not support java.lang.Double.NaN|NEGATIVE_INFINITY|POSITIVE_INFINITY") |
| case _ => doubleValue |
| } |
| |
| case DECIMAL => |
| value.asInstanceOf[JBigDecimal] |
| |
| case VARCHAR | CHAR => |
| value.toString |
| |
| case DATE => |
| case TIME => |
| case TIMESTAMP => |
| value |
| |
| case typeName if YEAR_INTERVAL_TYPES.contains(typeName) => |
| val decimal = BigDecimal(value.asInstanceOf[JBigDecimal]) |
| if (decimal.isValidInt) { |
| decimal.intValue() |
| } else { |
| throw new TableException( |
| s"Decimal '$decimal' can not be converted to interval of months.") |
| } |
| |
| case typeName if DAY_INTERVAL_TYPES.contains(typeName) => |
| val decimal = BigDecimal(value.asInstanceOf[JBigDecimal]) |
| if (decimal.isValidLong) { |
| decimal.longValue() |
| } else { |
| throw new TableException( |
| s"Decimal '$decimal' can not be converted to interval of milliseconds.") |
| } |
| |
| case t@_ => |
| throw new TableException(s"Type not supported: $t") |
| } |
| ret.asInstanceOf[Object] |
| } |
| } |