Examples with Cast com.revolsys.record.query.Cast used on opensource projects

Example 1 with Cast

use of com.revolsys.record.query.Cast in project com.revolsys.open by revolsys.

the class QueryWhereConditionField method toQueryValue.

@SuppressWarnings("unchecked")
private <V extends QueryValue> V toQueryValue(final ValueNode expression) {
    if (expression instanceof BetweenOperatorNode) {
        final BetweenOperatorNode betweenExpression = (BetweenOperatorNode) expression;
        final ValueNode leftValueNode = betweenExpression.getLeftOperand();
        final ValueNodeList rightOperandList = betweenExpression.getRightOperandList();
        final ValueNode betweenExpressionStart = rightOperandList.get(0);
        final ValueNode betweenExpressionEnd = rightOperandList.get(1);
        if (!(leftValueNode instanceof ColumnReference)) {
            setInvalidMessage("Between operator must use a column name not: " + leftValueNode);
            return null;
        }
        if (!(betweenExpressionStart instanceof NumericConstantNode)) {
            setInvalidMessage("Between min value must be a number not: " + betweenExpressionStart);
            return null;
        }
        if (!(betweenExpressionEnd instanceof NumericConstantNode)) {
            setInvalidMessage("Between max value must be a number not: " + betweenExpressionEnd);
            return null;
        }
        final Column column = toQueryValue(leftValueNode);
        final Value min = toQueryValue(betweenExpressionStart);
        final Value max = toQueryValue(betweenExpressionEnd);
        final FieldDefinition fieldDefinition = this.recordDefinition.getField(column.getName());
        min.convert(fieldDefinition);
        max.convert(fieldDefinition);
        return (V) new Between(column, min, max);
    } else if (expression instanceof BinaryLogicalOperatorNode) {
        final BinaryLogicalOperatorNode binaryOperatorNode = (BinaryLogicalOperatorNode) expression;
        final String operator = binaryOperatorNode.getOperator().toUpperCase();
        final ValueNode leftValueNode = binaryOperatorNode.getLeftOperand();
        final ValueNode rightValueNode = binaryOperatorNode.getRightOperand();
        final QueryValue leftValue = toQueryValue(leftValueNode);
        if (leftValue instanceof Condition) {
            final Condition leftCondition = (Condition) leftValue;
            final QueryValue rightValue = toQueryValue(rightValueNode);
            if (rightValue instanceof Condition) {
                final Condition rightCondition = (Condition) rightValue;
                if ("AND".equals(operator)) {
                    return (V) new And(leftCondition, rightCondition);
                } else if ("OR".equals(operator)) {
                    return (V) new Or(leftCondition, rightCondition);
                } else {
                    setInvalidMessage("Binary logical operator " + operator + " not supported.");
                    return null;
                }
            } else {
                setInvalidMessage("Right side of " + operator + " must be a condition (e.g. column_name = 'value') not: " + rightValue);
                return null;
            }
        } else {
            setInvalidMessage("Left side of " + operator + " must be a condition (e.g. column_name = 'value') not: " + leftValue);
            return null;
        }
    } else if (expression instanceof BinaryOperatorNode) {
        final BinaryOperatorNode binaryOperatorNode = (BinaryOperatorNode) expression;
        final String operator = binaryOperatorNode.getOperator();
        final ValueNode leftValueNode = binaryOperatorNode.getLeftOperand();
        final ValueNode rightValueNode = binaryOperatorNode.getRightOperand();
        if (QueryValue.SUPPORTED_BINARY_OPERATORS.contains(operator.toUpperCase())) {
            final QueryValue leftCondition = toQueryValue(leftValueNode);
            QueryValue rightCondition = toQueryValue(rightValueNode);
            if (leftCondition instanceof Column) {
                if (rightCondition instanceof Value) {
                    final Object value = ((Value) rightCondition).getValue();
                    if (value == null) {
                        setInvalidMessage("Values can't be null for " + operator + " use IS NULL or IS NOT NULL instead.");
                    } else {
                        final Column column = (Column) leftCondition;
                        final String name = column.getName();
                        final FieldDefinition fieldDefinition = this.recordDefinition.getField(name);
                        final CodeTable codeTable = this.recordDefinition.getCodeTableByFieldName(name);
                        if (codeTable == null || fieldDefinition == this.recordDefinition.getIdField()) {
                            try {
                                final Object convertedValue = fieldDefinition.toFieldValueException(value);
                                if (convertedValue == null) {
                                    setInvalidMessage("Values can't be null for " + operator + " use IS NULL or IS NOT NULL instead.");
                                    return null;
                                } else {
                                    rightCondition = new Value(fieldDefinition, convertedValue);
                                }
                            } catch (final Throwable t) {
                                setInvalidMessage(name + "='" + value + "' is not a valid " + fieldDefinition.getDataType().getValidationName());
                            }
                        } else {
                            Object id;
                            if (value instanceof String) {
                                final String string = (String) value;
                                final String[] values = string.split(":");
                                id = codeTable.getIdentifier((Object[]) values);
                            } else {
                                id = codeTable.getIdentifier(value);
                            }
                            if (id == null) {
                                setInvalidMessage(name + "='" + value + "' could not be found in the code table " + codeTable.getName());
                            } else {
                                rightCondition = new Value(fieldDefinition, id);
                            }
                        }
                    }
                }
            }
            if (expression instanceof BinaryArithmeticOperatorNode) {
                final QueryValue arithmaticCondition = Q.arithmatic(leftCondition, operator, rightCondition);
                return (V) arithmaticCondition;
            } else {
                final Condition binaryCondition = Q.binary(leftCondition, operator, rightCondition);
                return (V) binaryCondition;
            }
        } else {
            setInvalidMessage("Unsupported binary operator " + operator);
        }
    } else if (expression instanceof ColumnReference) {
        final ColumnReference column = (ColumnReference) expression;
        String columnName = column.getColumnName();
        columnName = columnName.replaceAll("\"", "");
        final FieldDefinition fieldDefinition = this.recordDefinition.getField(columnName);
        if (fieldDefinition == null) {
            setInvalidMessage("Invalid field name " + columnName);
        } else {
            return (V) new Column(fieldDefinition);
        }
    } else if (expression instanceof LikeEscapeOperatorNode) {
        final LikeEscapeOperatorNode likeEscapeOperatorNode = (LikeEscapeOperatorNode) expression;
        final ValueNode leftValueNode = likeEscapeOperatorNode.getReceiver();
        final ValueNode rightValueNode = likeEscapeOperatorNode.getLeftOperand();
        final QueryValue leftCondition = toQueryValue(leftValueNode);
        final QueryValue rightCondition = toQueryValue(rightValueNode);
        return (V) new ILike(leftCondition, rightCondition);
    } else if (expression instanceof NotNode) {
        final NotNode notNode = (NotNode) expression;
        final ValueNode operand = notNode.getOperand();
        final Condition condition = toQueryValue(operand);
        return (V) new Not(condition);
    } else if (expression instanceof InListOperatorNode) {
        final InListOperatorNode inListOperatorNode = (InListOperatorNode) expression;
        final ValueNode leftOperand = inListOperatorNode.getLeftOperand();
        final QueryValue leftCondition = toQueryValue(leftOperand);
        final List<QueryValue> conditions = new ArrayList<>();
        final RowConstructorNode itemsList = inListOperatorNode.getRightOperandList();
        for (final ValueNode itemValueNode : itemsList.getNodeList()) {
            final QueryValue itemCondition = toQueryValue(itemValueNode);
            conditions.add(itemCondition);
        }
        return (V) new In(leftCondition, new CollectionValue(conditions));
    } else if (expression instanceof IsNullNode) {
        final IsNullNode isNullNode = (IsNullNode) expression;
        final ValueNode operand = isNullNode.getOperand();
        final QueryValue value = toQueryValue(operand);
        if (isNullNode.getNodeType() == NodeTypes.IS_NOT_NULL_NODE) {
            return (V) new IsNotNull(value);
        } else {
            return (V) new IsNull(value);
        }
    // } else if (expression instanceof Parenthesis) {
    // final Parenthesis parenthesis = (Parenthesis)expression;
    // final ValueNode parenthesisValueNode = parenthesis.getExpression();
    // final Condition condition = toCondition(parenthesisExpression);
    // final ParenthesisCondition parenthesisCondition = new
    // ParenthesisCondition(
    // condition);
    // if (parenthesis.isNot()) {
    // return (V)Q.not(parenthesisCondition);
    // } else {
    // return (V)parenthesisCondition;
    // }
    } else if (expression instanceof RowConstructorNode) {
        final RowConstructorNode rowConstructorNode = (RowConstructorNode) expression;
        final ValueNodeList values = rowConstructorNode.getNodeList();
        final ValueNode valueNode = values.get(0);
        return (V) toQueryValue(valueNode);
    } else if (expression instanceof UserTypeConstantNode) {
        final UserTypeConstantNode constant = (UserTypeConstantNode) expression;
        final Object objectValue = constant.getObjectValue();
        return (V) new Value(objectValue);
    } else if (expression instanceof ConstantNode) {
        final ConstantNode constant = (ConstantNode) expression;
        final Object value = constant.getValue();
        return (V) new Value(value);
    } else if (expression instanceof SimpleStringOperatorNode) {
        final SimpleStringOperatorNode operatorNode = (SimpleStringOperatorNode) expression;
        final String functionName = operatorNode.getMethodName().toUpperCase();
        final ValueNode operand = operatorNode.getOperand();
        final QueryValue condition = toQueryValue(operand);
        return (V) new Function(functionName, condition);
    } else if (expression instanceof CastNode) {
        final CastNode castNode = (CastNode) expression;
        final String typeName = castNode.getType().getSQLstring();
        final ValueNode operand = castNode.getCastOperand();
        final QueryValue condition = toQueryValue(operand);
        return (V) new Cast(condition, typeName);
    } else if (expression == null) {
        return null;
    } else {
        setInvalidMessage("Unsupported expression" + expression.getClass() + " " + expression);
    }
    return null;
}