private void entitizeContent()

in src/main/java/org/apache/xmlbeans/impl/store/Saver.java [1251:1355]
81 lines of code
38 McCabe index (conditional complexity)

        private void entitizeContent(boolean forceCData) {
            assert _free >= 0;

            if (_lastEmitCch == 0) {
                return;
            }

            int i = _lastEmitIn;
            final int n = _cbuf.length;

            boolean hasCharToBeReplaced = false;

            int count = 0;
            char prevChar = 0;
            char prevPrevChar = 0;
            for (int cch = _lastEmitCch; cch > 0; cch--) {
                char ch = _cbuf[i];

                if (ch == '<' || ch == '&') {
                    count++;
                } else if (prevPrevChar == ']' && prevChar == ']' && ch == '>') {
                    hasCharToBeReplaced = true;
                } else if (isBadChar(ch) || isEscapedChar(ch) || (!_isPrettyPrint && ch == '\r')) {
                    hasCharToBeReplaced = true;
                }

                if (++i == n) {
                    i = 0;
                }

                prevPrevChar = prevChar;
                prevChar = ch;
            }

            if (!forceCData && count == 0 && !hasCharToBeReplaced && count < _cdataEntityCountThreshold) {
                return;
            }

            i = _lastEmitIn;

            //
            // Heuristic for knowing when to save out stuff as a CDATA.
            //
            if (forceCData || (_lastEmitCch > _cdataLengthThreshold && count > _cdataEntityCountThreshold)) {
                boolean lastWasBracket = _cbuf[i] == ']';

                i = replace(i, "<![CDATA[" + _cbuf[i]);

                boolean secondToLastWasBracket = lastWasBracket;

                lastWasBracket = _cbuf[i] == ']';

                if (++i == _cbuf.length) {
                    i = 0;
                }

                for (int cch = _lastEmitCch - 2; cch > 0; cch--) {
                    char ch = _cbuf[i];

                    if (ch == '>' && secondToLastWasBracket && lastWasBracket) {
                        i = replace(i, "]]>><![CDATA[");
                    } else if (isBadChar(ch)) {
                        i = replace(i, "?");
                    } else {
                        i++;
                    }

                    secondToLastWasBracket = lastWasBracket;
                    lastWasBracket = ch == ']';

                    if (i == _cbuf.length) {
                        i = 0;
                    }
                }

                emit("]]>");
            } else {
                char ch = 0, ch_1 = 0, ch_2;
                for (int cch = _lastEmitCch; cch > 0; cch--) {
                    ch_2 = ch_1;
                    ch_1 = ch;
                    ch = _cbuf[i];

                    if (ch == '<') {
                        i = replace(i, "&lt;");
                    } else if (ch == '&') {
                        i = replace(i, "&amp;");
                    } else if (ch == '>' && ch_1 == ']' && ch_2 == ']') {
                        i = replace(i, "&gt;");
                    } else if (isBadChar(ch)) {
                        i = replace(i, "?");
                    } else if (!_isPrettyPrint && ch == '\r') {
                        i = replace(i, "&#13;");
                    } else if (isEscapedChar(ch)) {
                        i = replace(i, _replaceChar.getEscapedString(ch));
                    } else {
                        i++;
                    }

                    if (i == _cbuf.length) {
                        i = 0;
                    }
                }
            }
        }