protected DefaultMapper()

in extensions/commons-csv/src/main/java/org/apache/batchee/csv/mapper/DefaultMapper.java [43:86]
36 lines of code
11 McCabe index (conditional complexity)

    protected DefaultMapper(final Class<T> type, final CoercingConverter coercingConverter) {
        this.type = type;
        this.coercingConverter = coercingConverter;

        int higherIdx = -1;

        Class<?> current = type;
        while (current != Object.class) {
            for (final Field field : type.getDeclaredFields()) {
                final Csv csv = field.getAnnotation(Csv.class);
                if (csv != null) {
                    final int pos = csv.index();
                    final String name = csv.name();

                    final boolean defaultName = Csv.DEFAULT_NAME.equals(name);

                    // put each field a single time to avoid to set it twice even if position and name are filled for header output
                    if (pos >= 0) {
                        if (fieldByPosition.put(pos, field) != null) {
                            throw new IllegalArgumentException("multiple field for index " + pos + " in " + type);
                        }
                        if (!defaultName) {
                            headers.put(pos, name);
                        }
                    } else if (!defaultName) {
                        if (fieldByName.put(name, field) != null) {
                            throw new IllegalArgumentException("multiple field for name '" + name + "' in " + type);
                        }
                    }
                    if (pos > higherIdx) {
                        higherIdx = pos;
                    }


                    if (!field.isAccessible()) {
                        field.setAccessible(true);
                    }
                }
            }
            current = current.getSuperclass();
        }

        maxIndex = higherIdx;
    }