private String applyDateFunction()

in phoenix5-hive4/src/main/java/org/apache/phoenix/hive/query/PhoenixQueryBuilder.java [394:491]
94 lines of code
15 McCabe index (conditional complexity)

    private String applyDateFunction(String whereClause, String columnName) {
        StringBuilder whereCondition = new StringBuilder();
        for (Iterator<String> iterator = Splitter.on(CharMatcher.whitespace()).omitEmptyStrings()
                .split(whereClause).iterator(); iterator.hasNext(); whereCondition.append
                (PhoenixStorageHandlerConstants.SPACE)) {
            String token = iterator.next();
            if (isMyCondition(columnName, token)) {
                whereCondition.append(token);

                String comparator = iterator.next();
                whereCondition.append(PhoenixStorageHandlerConstants.SPACE);
                whereCondition.append(comparator).append(PhoenixStorageHandlerConstants.SPACE);
                if (PhoenixStorageHandlerConstants.BETWEEN_COMPARATOR.equalsIgnoreCase
                        (comparator)) {
                    whereCondition.append("to_date(").append
                            (getCompareValueForDateAndTimestampFunction(iterator.next())).append
                            (") ").append(iterator.next()).append(PhoenixStorageHandlerConstants
                            .SPACE)
                            .append("to_date(");

                    String toCompareValue = iterator.next();
                    if (toCompareValue.endsWith(PhoenixStorageHandlerConstants
                            .RIGHT_ROUND_BRACKET)) {
                        int rightBracketIndex = toCompareValue.indexOf
                                (PhoenixStorageHandlerConstants.RIGHT_ROUND_BRACKET);
                        whereCondition.append(getCompareValueForDateAndTimestampFunction
                                (toCompareValue.substring(0, rightBracketIndex))).append
                                (PhoenixStorageHandlerConstants.RIGHT_ROUND_BRACKET).append
                                (toCompareValue.substring(rightBracketIndex));
                    } else {
                        whereCondition.append(getCompareValueForDateAndTimestampFunction
                                (toCompareValue)).append(PhoenixStorageHandlerConstants
                                .RIGHT_ROUND_BRACKET);
                    }
                } else if (PhoenixStorageHandlerConstants.IN_COMPARATOR.equalsIgnoreCase
                        (comparator)) {
                    while (iterator.hasNext()) {
                        String aToken = iterator.next();
                        if (aToken.equals(PhoenixStorageHandlerConstants.LEFT_ROUND_BRACKET) ||
                                aToken.equals(PhoenixStorageHandlerConstants.COMMA)) {
                            whereCondition.append(aToken);
                        } else if (aToken.equals(PhoenixStorageHandlerConstants
                                .RIGHT_ROUND_BRACKET)) {
                            whereCondition.append(aToken);
                            break;
                        } else if (aToken.endsWith(PhoenixStorageHandlerConstants
                                .RIGHT_ROUND_BRACKET)) {
                            int bracketIndex = aToken.indexOf(PhoenixStorageHandlerConstants
                                    .RIGHT_ROUND_BRACKET);
                            whereCondition.append("to_date(").append
                                    (getCompareValueForDateAndTimestampFunction(aToken.substring
                                            (0, bracketIndex))).append
                                    (PhoenixStorageHandlerConstants.RIGHT_ROUND_BRACKET).append
                                    (aToken.substring(bracketIndex));
                            break;
                        } else if (aToken.endsWith(PhoenixStorageHandlerConstants.COMMA)) {
                            if (aToken.startsWith(PhoenixStorageHandlerConstants
                                    .LEFT_ROUND_BRACKET)) {
                                int bracketIndex = aToken.lastIndexOf
                                        (PhoenixStorageHandlerConstants.LEFT_ROUND_BRACKET);
                                whereCondition.append(aToken.substring(0, bracketIndex + 1))
                                        .append("to_date(").append
                                        (getCompareValueForDateAndTimestampFunction(aToken
                                                .substring(bracketIndex + 1, aToken.length() - 1)
                                        )).append("),");
                            } else {
                                whereCondition.append("to_date(").append
                                        (getCompareValueForDateAndTimestampFunction(aToken
                                                .substring(0, aToken.length() - 1))).append("),");
                            }
                        }

                        whereCondition.append(PhoenixStorageHandlerConstants.SPACE);
                    }
                } else if (PhoenixStorageHandlerConstants.COMMON_COMPARATOR.contains(comparator)) {
                    String compareValue = getCompareValueForDateAndTimestampFunction(iterator
                            .next());
                    whereCondition.append("to_date(");
                    if (compareValue.endsWith(PhoenixStorageHandlerConstants.RIGHT_ROUND_BRACKET)) {
                        int rightBracketIndex = compareValue.indexOf
                                (PhoenixStorageHandlerConstants.RIGHT_ROUND_BRACKET);
                        whereCondition.append(getCompareValueForDateAndTimestampFunction
                                (compareValue.substring(0, rightBracketIndex))).append
                                (PhoenixStorageHandlerConstants.RIGHT_ROUND_BRACKET).append
                                (compareValue.substring(rightBracketIndex));
                    } else {
                        whereCondition.append(getCompareValueForDateAndTimestampFunction
                                (compareValue)).append(PhoenixStorageHandlerConstants
                                .RIGHT_ROUND_BRACKET);
                    }
                }
            } else {
                whereCondition.append(token);
            }
        }

        return whereCondition.toString();
    }