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.carbondata.core.scan.expression.logical;
  
  import java.util.ArrayList;
  import java.util.Collections;
  import java.util.List;
  
  import org.apache.carbondata.core.constants.CarbonCommonConstants;
  import org.apache.carbondata.core.metadata.datatype.DataTypes;
  import org.apache.carbondata.core.scan.expression.Expression;
  import org.apache.carbondata.core.scan.expression.ExpressionResult;
  import org.apache.carbondata.core.scan.expression.LiteralExpression;
  import org.apache.carbondata.core.scan.expression.conditional.BinaryConditionalExpression;
  import org.apache.carbondata.core.scan.expression.exception.FilterIllegalMemberException;
  import org.apache.carbondata.core.scan.expression.exception.FilterUnsupportedException;
  import org.apache.carbondata.core.scan.filter.intf.ExpressionType;
  import org.apache.carbondata.core.scan.filter.intf.RowIntf;
  
  public class RangeExpression extends BinaryConditionalExpression {
  
    private static final long serialVersionUID = 1L;
  
    public RangeExpression(Expression left, Expression right) {
      super(left, right);
    }
  
    @Override
    public ExpressionResult evaluate(RowIntf value)
        throws FilterUnsupportedException, FilterIllegalMemberException {
      ExpressionResult resultLeft = left.evaluate(value);
      ExpressionResult resultRight = right.evaluate(value);
      if (resultLeft.getDataType() == DataTypes.BOOLEAN) {
        resultLeft.set(DataTypes.BOOLEAN, (resultLeft.getBoolean() && resultRight.getBoolean()));
      } else {
        throw new FilterUnsupportedException(
            "Incompatible datatype for applying RANGE Expression Filter");
      }
      return resultLeft;
    }
  
    @Override
    public ExpressionType getFilterExpressionType() {
      return ExpressionType.RANGE;
    }
  
    @Override
    public String getString() {
      return "Range(" + left.getString() + ',' + right.getString() + ')';
    }
  
    @Override
    public String getStatement() {
      return left.getStatement() + " between " + right.getStatement();
    }
  
    @Override
    public List<ExpressionResult> getLiterals() {
      List<ExpressionResult> listOfExp =
          new ArrayList<ExpressionResult>(CarbonCommonConstants.DEFAULT_COLLECTION_SIZE);
      getLiteralsResult(this, listOfExp);
      Collections.sort(listOfExp);
      return listOfExp;
    }
  
    private void getLiteralsResult(Expression expression, List<ExpressionResult> listOfExp) {
      for (Expression child : expression.getChildren()) {
        if (child instanceof LiteralExpression) {
          ExpressionResult colExp = ((LiteralExpression) child).getExpressionResult();
          listOfExp.add(colExp);
        } else {
          getLiteralsResult(child, listOfExp);
        }
      }
    }
  }
  