Examples with EnumStringConverter org.neo4j.ogm.typeconversion.EnumStringConverter used on opensource projects

Example 1 with EnumStringConverter

use of org.neo4j.ogm.typeconversion.EnumStringConverter in project neo4j-ogm by neo4j.

the class ObjectAnnotations method getConverter.

Object getConverter(Class<?> fieldType) {
    // try to get a custom type converter
    AnnotationInfo customType = get(Convert.class);
    if (customType != null) {
        String classDescriptor = customType.get(Convert.CONVERTER, null);
        if (classDescriptor == null || Convert.Unset.class.getName().equals(classDescriptor)) {
            // will have a default proxy converter applied later on
            return null;
        }
        try {
            Class<?> clazz = Class.forName(classDescriptor, false, Configuration.getDefaultClassLoader());
            return clazz.getDeclaredConstructor().newInstance();
        } catch (Exception e) {
            throw new RuntimeException(e);
        }
    }
    // try to find a pre-registered type annotation. this is very clumsy, but at least it is done only once
    AnnotationInfo dateLongConverterInfo = get(DateLong.class);
    if (dateLongConverterInfo != null) {
        if (fieldType.equals(Instant.class)) {
            return new InstantLongConverter();
        }
        return new DateLongConverter();
    }
    AnnotationInfo dateStringConverterInfo = get(DateString.class);
    if (dateStringConverterInfo != null) {
        String format = dateStringConverterInfo.get(DateString.FORMAT, DateString.ISO_8601);
        if (fieldType == Date.class) {
            return new DateStringConverter(format, isLenientConversion(dateStringConverterInfo));
        } else if (fieldType == Instant.class) {
            return new InstantStringConverter(format, dateStringConverterInfo.get("zoneId"), isLenientConversion(dateStringConverterInfo));
        } else {
            throw new MappingException("Cannot use @DateString with attribute of type " + fieldType);
        }
    }
    AnnotationInfo enumStringConverterInfo = get(EnumString.class);
    if (enumStringConverterInfo != null) {
        String classDescriptor = enumStringConverterInfo.get(EnumString.TYPE, null);
        try {
            Class clazz = Class.forName(classDescriptor, false, Configuration.getDefaultClassLoader());
            return new EnumStringConverter(clazz, isLenientConversion(enumStringConverterInfo));
        } catch (Exception e) {
            throw new RuntimeException(e);
        }
    }
    AnnotationInfo numberStringConverterInfo = get(NumberString.class);
    if (numberStringConverterInfo != null) {
        String classDescriptor = numberStringConverterInfo.get(NumberString.TYPE, null);
        try {
            Class clazz = Class.forName(classDescriptor, false, Configuration.getDefaultClassLoader());
            return new NumberStringConverter(clazz, isLenientConversion(numberStringConverterInfo));
        } catch (Exception e) {
            throw new RuntimeException(e);
        }
    }
    return null;
}