org.apache.atlas.groovy.ArithmeticExpression Maven / Gradle / Ivy
/**
* 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.atlas.groovy;
import org.apache.atlas.AtlasException;
import java.util.List;
/**
* Represents an arithmetic expression such as a+b.
*/
public class ArithmeticExpression extends BinaryExpression {
/**
* Allowed arithmetic operators.
*/
public enum ArithmeticOperator {
PLUS("+"),
MINUS("-"),
TIMES("*"),
DIVIDE("/"),
MODULUS("%");
private String groovyValue;
ArithmeticOperator(String groovyValue) {
this.groovyValue = groovyValue;
}
public String getGroovyValue() {
return groovyValue;
}
public static ArithmeticOperator lookup(String groovyValue) throws AtlasException {
for(ArithmeticOperator op : ArithmeticOperator.values()) {
if (op.getGroovyValue().equals(groovyValue)) {
return op;
}
}
throw new AtlasException("Unknown Operator:" + groovyValue);
}
}
public ArithmeticExpression(GroovyExpression left, ArithmeticOperator op, GroovyExpression right) {
super(left, op.getGroovyValue(), right);
}
private ArithmeticExpression(GroovyExpression left, String op, GroovyExpression right) {
super(left, op, right);
}
@Override
public GroovyExpression copy(List newChildren) {
assert newChildren.size() == 2;
return new ArithmeticExpression(newChildren.get(0), op, newChildren.get(1));
}
}