content: /*
   * 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.arrow.gandiva.expression;
  
  import org.apache.arrow.gandiva.exceptions.GandivaException;
  import org.apache.arrow.gandiva.ipc.GandivaTypes;
  import org.apache.arrow.vector.types.pojo.ArrowType;
  
  /** Node representing a if-then-else block expression. */
  class IfNode implements TreeNode {
    private final TreeNode condition;
    private final TreeNode thenNode;
    private final TreeNode elseNode;
    private final ArrowType retType;
  
    IfNode(TreeNode condition, TreeNode thenNode, TreeNode elseNode, ArrowType retType) {
      this.condition = condition;
      this.thenNode = thenNode;
      this.elseNode = elseNode;
      this.retType = retType;
    }
  
    @Override
    public GandivaTypes.TreeNode toProtobuf() throws GandivaException {
      GandivaTypes.IfNode.Builder ifNodeBuilder = GandivaTypes.IfNode.newBuilder();
      ifNodeBuilder.setCond(condition.toProtobuf());
      ifNodeBuilder.setThenNode(thenNode.toProtobuf());
      ifNodeBuilder.setElseNode(elseNode.toProtobuf());
      ifNodeBuilder.setReturnType(ArrowTypeHelper.arrowTypeToProtobuf(retType));
  
      GandivaTypes.TreeNode.Builder builder = GandivaTypes.TreeNode.newBuilder();
      builder.setIfNode(ifNodeBuilder.build());
      return builder.build();
    }
  }
  