| /* |
| * 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.druid.math.expr; |
| |
| import com.google.common.math.LongMath; |
| import com.google.common.primitives.Ints; |
| import org.apache.druid.common.config.NullHandling; |
| |
| import javax.annotation.Nullable; |
| |
| // math operators live here |
| |
| class BinPlusExpr extends BinaryEvalOpExprBase |
| { |
| BinPlusExpr(String op, Expr left, Expr right) |
| { |
| super(op, left, right); |
| } |
| |
| @Override |
| protected BinaryOpExprBase copy(Expr left, Expr right) |
| { |
| return new BinPlusExpr(op, left, right); |
| } |
| |
| @Override |
| protected ExprEval evalString(@Nullable String left, @Nullable String right) |
| { |
| return ExprEval.of(NullHandling.nullToEmptyIfNeeded(left) |
| + NullHandling.nullToEmptyIfNeeded(right)); |
| } |
| |
| @Override |
| protected final long evalLong(long left, long right) |
| { |
| return left + right; |
| } |
| |
| @Override |
| protected final double evalDouble(double left, double right) |
| { |
| return left + right; |
| } |
| } |
| |
| class BinMinusExpr extends BinaryEvalOpExprBase |
| { |
| BinMinusExpr(String op, Expr left, Expr right) |
| { |
| super(op, left, right); |
| } |
| |
| @Override |
| protected BinaryOpExprBase copy(Expr left, Expr right) |
| { |
| return new BinMinusExpr(op, left, right); |
| } |
| |
| @Override |
| protected final long evalLong(long left, long right) |
| { |
| return left - right; |
| } |
| |
| @Override |
| protected final double evalDouble(double left, double right) |
| { |
| return left - right; |
| } |
| } |
| |
| class BinMulExpr extends BinaryEvalOpExprBase |
| { |
| BinMulExpr(String op, Expr left, Expr right) |
| { |
| super(op, left, right); |
| } |
| |
| @Override |
| protected BinaryOpExprBase copy(Expr left, Expr right) |
| { |
| return new BinMulExpr(op, left, right); |
| } |
| |
| @Override |
| protected final long evalLong(long left, long right) |
| { |
| return left * right; |
| } |
| |
| @Override |
| protected final double evalDouble(double left, double right) |
| { |
| return left * right; |
| } |
| } |
| |
| class BinDivExpr extends BinaryEvalOpExprBase |
| { |
| BinDivExpr(String op, Expr left, Expr right) |
| { |
| super(op, left, right); |
| } |
| |
| @Override |
| protected BinaryOpExprBase copy(Expr left, Expr right) |
| { |
| return new BinDivExpr(op, left, right); |
| } |
| |
| @Override |
| protected final long evalLong(long left, long right) |
| { |
| return left / right; |
| } |
| |
| @Override |
| protected final double evalDouble(double left, double right) |
| { |
| return left / right; |
| } |
| } |
| |
| class BinPowExpr extends BinaryEvalOpExprBase |
| { |
| BinPowExpr(String op, Expr left, Expr right) |
| { |
| super(op, left, right); |
| } |
| |
| @Override |
| protected BinaryOpExprBase copy(Expr left, Expr right) |
| { |
| return new BinPowExpr(op, left, right); |
| } |
| |
| @Override |
| protected final long evalLong(long left, long right) |
| { |
| return LongMath.pow(left, Ints.checkedCast(right)); |
| } |
| |
| @Override |
| protected final double evalDouble(double left, double right) |
| { |
| return Math.pow(left, right); |
| } |
| } |
| |
| class BinModuloExpr extends BinaryEvalOpExprBase |
| { |
| BinModuloExpr(String op, Expr left, Expr right) |
| { |
| super(op, left, right); |
| } |
| |
| @Override |
| protected BinaryOpExprBase copy(Expr left, Expr right) |
| { |
| return new BinModuloExpr(op, left, right); |
| } |
| |
| @Override |
| protected final long evalLong(long left, long right) |
| { |
| return left % right; |
| } |
| |
| @Override |
| protected final double evalDouble(double left, double right) |
| { |
| return left % right; |
| } |
| } |