Examples with RowLevelFilterResolverImpl org.apache.carbondata.core.scan.filter.resolver.RowLevelFilterResolverImpl used on opensource projects

Example 1 with RowLevelFilterResolverImpl

use of org.apache.carbondata.core.scan.filter.resolver.RowLevelFilterResolverImpl in project carbondata by apache.

the class FilterExpressionProcessor method getFilterResolverBasedOnExpressionType.

/**
   * Factory method which will return the resolver instance based on filter expression
   * expressions.
   */
private FilterResolverIntf getFilterResolverBasedOnExpressionType(ExpressionType filterExpressionType, boolean isExpressionResolve, Expression expression, AbsoluteTableIdentifier tableIdentifier, Expression expressionTree) {
    BinaryConditionalExpression currentCondExpression = null;
    ConditionalExpression condExpression = null;
    switch(filterExpressionType) {
        case FALSE:
            return new RowLevelFilterResolverImpl(expression, false, false, tableIdentifier);
        case TRUE:
            return new TrueConditionalResolverImpl(expression, false, false, tableIdentifier);
        case EQUALS:
            currentCondExpression = (BinaryConditionalExpression) expression;
            if (currentCondExpression.isSingleDimension() && currentCondExpression.getColumnList().get(0).getCarbonColumn().getDataType() != DataType.ARRAY && currentCondExpression.getColumnList().get(0).getCarbonColumn().getDataType() != DataType.STRUCT) {
                // getting new dim index.
                if (!currentCondExpression.getColumnList().get(0).getCarbonColumn().hasEncoding(Encoding.DICTIONARY) || currentCondExpression.getColumnList().get(0).getCarbonColumn().hasEncoding(Encoding.DIRECT_DICTIONARY)) {
                    if (FilterUtil.checkIfExpressionContainsColumn(currentCondExpression.getLeft()) && FilterUtil.checkIfExpressionContainsColumn(currentCondExpression.getRight()) || (FilterUtil.checkIfRightExpressionRequireEvaluation(currentCondExpression.getRight()) || FilterUtil.checkIfLeftExpressionRequireEvaluation(currentCondExpression.getLeft()))) {
                        return new RowLevelFilterResolverImpl(expression, isExpressionResolve, true, tableIdentifier);
                    }
                    if (currentCondExpression.getFilterExpressionType() == ExpressionType.GREATERTHAN || currentCondExpression.getFilterExpressionType() == ExpressionType.LESSTHAN || currentCondExpression.getFilterExpressionType() == ExpressionType.GREATERTHAN_EQUALTO || currentCondExpression.getFilterExpressionType() == ExpressionType.LESSTHAN_EQUALTO) {
                        return new RowLevelRangeFilterResolverImpl(expression, isExpressionResolve, true, tableIdentifier);
                    }
                }
                return new ConditionalFilterResolverImpl(expression, isExpressionResolve, true, tableIdentifier);
            }
            break;
        case RANGE:
            return new ConditionalFilterResolverImpl(expression, isExpressionResolve, true, tableIdentifier);
        case NOT_EQUALS:
            currentCondExpression = (BinaryConditionalExpression) expression;
            if (currentCondExpression.isSingleDimension() && currentCondExpression.getColumnList().get(0).getCarbonColumn().getDataType() != DataType.ARRAY && currentCondExpression.getColumnList().get(0).getCarbonColumn().getDataType() != DataType.STRUCT) {
                if (!currentCondExpression.getColumnList().get(0).getCarbonColumn().hasEncoding(Encoding.DICTIONARY) || currentCondExpression.getColumnList().get(0).getCarbonColumn().hasEncoding(Encoding.DIRECT_DICTIONARY)) {
                    if (FilterUtil.checkIfExpressionContainsColumn(currentCondExpression.getLeft()) && FilterUtil.checkIfExpressionContainsColumn(currentCondExpression.getRight()) || (FilterUtil.checkIfRightExpressionRequireEvaluation(currentCondExpression.getRight()) || FilterUtil.checkIfLeftExpressionRequireEvaluation(currentCondExpression.getLeft()))) {
                        return new RowLevelFilterResolverImpl(expression, isExpressionResolve, false, tableIdentifier);
                    }
                    if (expressionTree.getFilterExpressionType() == ExpressionType.GREATERTHAN || expressionTree.getFilterExpressionType() == ExpressionType.LESSTHAN || expressionTree.getFilterExpressionType() == ExpressionType.GREATERTHAN_EQUALTO || expressionTree.getFilterExpressionType() == ExpressionType.LESSTHAN_EQUALTO) {
                        return new RowLevelRangeFilterResolverImpl(expression, isExpressionResolve, false, tableIdentifier);
                    }
                    return new ConditionalFilterResolverImpl(expression, isExpressionResolve, false, tableIdentifier);
                }
                return new ConditionalFilterResolverImpl(expression, isExpressionResolve, false, tableIdentifier);
            }
            break;
        default:
            if (expression instanceof ConditionalExpression) {
                condExpression = (ConditionalExpression) expression;
                if (condExpression.isSingleDimension() && condExpression.getColumnList().get(0).getCarbonColumn().getDataType() != DataType.ARRAY && condExpression.getColumnList().get(0).getCarbonColumn().getDataType() != DataType.STRUCT) {
                    condExpression = (ConditionalExpression) expression;
                    if (condExpression.getColumnList().get(0).getCarbonColumn().hasEncoding(Encoding.DICTIONARY) && !condExpression.getColumnList().get(0).getCarbonColumn().hasEncoding(Encoding.DIRECT_DICTIONARY)) {
                        return new ConditionalFilterResolverImpl(expression, true, true, tableIdentifier);
                    }
                }
            }
    }
    return new RowLevelFilterResolverImpl(expression, false, false, tableIdentifier);
}