protected Object map()

in mr/src/main/java/org/elasticsearch/hadoop/serialization/ScrollReader.java [1000:1075]
58 lines of code
13 McCabe index (conditional complexity)

    protected Object map(String fieldMapping, Parser parser) {
        Token t = parser.currentToken();

        if (t == null) {
            t = parser.nextToken();
        }
        if (t == Token.START_OBJECT) {
            t = parser.nextToken();
        }

        boolean toggleGeo = false;

        if (fieldMapping != null) {
            // parse everything underneath without mapping
            if (FieldType.isGeo(mapping(fieldMapping, parser))) {
                toggleGeo = true;
                insideGeo = true;
                if (parsingCallback != null) {
                    parsingCallback.beginGeoField();
                }
            }
        }
        Object map = reader.createMap();

        for (; parser.currentToken() != Token.END_OBJECT;) {
            String currentName = parser.currentName();
            String nodeMapping = fieldMapping;

            if (nodeMapping != null) {
                nodeMapping = fieldMapping + "." + currentName;
            }
            else {
                nodeMapping = currentName;
            }

            String absoluteName = StringUtils.stripFieldNameSourcePrefix(parser.absoluteName());

            if (!absoluteName.equals(nodeMapping)) {
                throw new EsHadoopParsingException("Different node mapping " + absoluteName + "|" + nodeMapping);
            }

            if (shouldSkip(absoluteName)) {
                Token nt = parser.nextToken();
                if (nt.isValue()) {
                    // consume and move on
                    parser.nextToken();
                }
                else {
                    ParsingUtils.skipCurrentBlock(parser);
                    parser.nextToken();
                }
            }
            else {
                reader.beginField(absoluteName);

                // Must point to field name
                Object fieldName = reader.readValue(parser, currentName, FieldType.STRING);
                // And then the value...
                reader.addToMap(map, fieldName, read(absoluteName, parser.nextToken(), nodeMapping, parser));
                reader.endField(absoluteName);
            }
        }

        // geo field finished, returning
        if (toggleGeo) {
            insideGeo = false;
            if (parsingCallback != null) {
                parsingCallback.endGeoField();
            }
        }

        // eliminate END_OBJECT
        parser.nextToken();

        return map;
    }