private void initialize()

in oak-core/src/main/java/org/apache/jackrabbit/oak/query/SQL2Parser.java [1096:1201]
106 lines of code
43 McCabe index (conditional complexity)

    private void initialize(String query) throws ParseException {
        if (query == null) {
            query = "";
        }
        statement = query;
        int len = query.length() + 1;
        char[] command = new char[len];
        int[] types = new int[len];
        len--;
        query.getChars(0, len, command, 0);
        command[len] = ' ';
        int startLoop = 0;
        for (int i = 0; i < len; i++) {
            char c = command[i];
            int type = 0;
            switch (c) {
            case '-':
            case '(':
            case ')':
            case '{':
            case '}':
            case '*':
            case ',':
            case ';':
            case '+':
            case '%':
            case '?':
            case '$':
                type = CHAR_SPECIAL_1;
                break;
            case '!':
            case '<':
            case '>':
            case '|':
            case '=':
            case ':':
                type = CHAR_SPECIAL_2;
                break;
            case '.':
                type = CHAR_DECIMAL;
                break;
            case '/':
                if (command[i + 1] != '*') {
                    type = CHAR_SPECIAL_1;
                    break;
                }
                types[i] = type = CHAR_IGNORE;                
                startLoop = i;
                i += 2;
                checkRunOver(i, len, startLoop);
                while (command[i] != '*' || command[i + 1] != '/') {
                    i++;
                    checkRunOver(i, len, startLoop);
                }
                i++;          
                break;
            case '[':
                types[i] = type = CHAR_BRACKETED;
                startLoop = i;
                while (true) {
                    while (command[++i] != ']') {
                        checkRunOver(i, len, startLoop);
                    }
                    if (i >= len - 1 || command[i + 1] != ']') {
                        break;
                    }
                    i++;
                }
                break;
            case '\'':
                types[i] = type = CHAR_STRING;
                startLoop = i;
                while (command[++i] != '\'') {
                    checkRunOver(i, len, startLoop);
                }
                break;
            case '\"':
                types[i] = type = CHAR_QUOTED;
                startLoop = i;
                while (command[++i] != '\"') {
                    checkRunOver(i, len, startLoop);
                }
                break;
            case '_':
                type = CHAR_NAME;
                break;
            default:
                if (c >= 'a' && c <= 'z') {
                    type = CHAR_NAME;
                } else if (c >= 'A' && c <= 'Z') {
                    type = CHAR_NAME;
                } else if (c >= '0' && c <= '9') {
                    type = CHAR_VALUE;
                } else {
                    if (Character.isJavaIdentifierPart(c)) {
                        type = CHAR_NAME;
                    }
                }
            }
            types[i] = (byte) type;
        }
        statementChars = command;
        types[len] = CHAR_END;
        characterTypes = types;
        parseIndex = 0;
    }