| /* |
| * 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.olingo.server.core.uri.queryoption.expression; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| import org.apache.olingo.commons.api.edm.EdmType; |
| import org.apache.olingo.server.api.ODataApplicationException; |
| import org.apache.olingo.server.api.uri.queryoption.expression.Binary; |
| import org.apache.olingo.server.api.uri.queryoption.expression.BinaryOperatorKind; |
| import org.apache.olingo.server.api.uri.queryoption.expression.Expression; |
| import org.apache.olingo.server.api.uri.queryoption.expression.ExpressionVisitException; |
| import org.apache.olingo.server.api.uri.queryoption.expression.ExpressionVisitor; |
| |
| public class BinaryImpl implements Binary { |
| |
| private final Expression left; |
| private final BinaryOperatorKind operator; |
| private final Expression right; |
| private final EdmType type; |
| private final List<Expression> expressions; |
| |
| public BinaryImpl(final Expression left, final BinaryOperatorKind operator, final Expression right, |
| final EdmType type) { |
| this.left = left; |
| this.operator = operator; |
| this.right = right; |
| this.type = type; |
| this.expressions = null; |
| } |
| |
| public BinaryImpl(final Expression left, final BinaryOperatorKind operator, final List<Expression> right, |
| final EdmType type) { |
| this.left = left; |
| this.operator = operator; |
| this.right = null; |
| this.type = type; |
| this.expressions = right; |
| } |
| |
| @Override |
| public BinaryOperatorKind getOperator() { |
| return operator; |
| } |
| |
| @Override |
| public Expression getLeftOperand() { |
| return left; |
| } |
| |
| @Override |
| public Expression getRightOperand() { |
| return right; |
| } |
| |
| public EdmType getType() { |
| return type; |
| } |
| |
| @Override |
| public <T> T accept(final ExpressionVisitor<T> visitor) throws ExpressionVisitException, ODataApplicationException { |
| T localLeft = this.left.accept(visitor); |
| if (this.right != null) { |
| T localRight = this.right.accept(visitor); |
| return visitor.visitBinaryOperator(operator, localLeft, localRight); |
| } else if (this.expressions != null) { |
| List<T> expressions = new ArrayList<>(); |
| for (final Expression expression : this.expressions) { |
| expressions.add(expression.accept(visitor)); |
| } |
| return visitor.visitBinaryOperator(operator, localLeft, expressions); |
| } |
| return null; |
| } |
| |
| @Override |
| public String toString() { |
| return "{" + left + " " + operator.name() + " " + (null != right ? right : expressions) + '}'; |
| } |
| |
| @Override |
| public List<Expression> getExpressions() { |
| return expressions; |
| } |
| } |