Examples with ListParamParser ninja.params.ParamParsers.ListParamParser used on opensource projects

Example 1 with ListParamParser

use of ninja.params.ParamParsers.ListParamParser in project ninja by ninjaframework.

the class BodyParserEnginePost method invoke.

// Allows to instantiate inner objects with a prefix for each parameter key
private <T> T invoke(Context context, Map<String, String[]> parameters, Class<T> classOfT, String paramPrefix) {
    T t = null;
    try {
        t = classOfT.newInstance();
    } catch (InstantiationException | IllegalAccessException e) {
        logger.error("Can't create new instance of class {}", classOfT.getName(), e);
        return null;
    }
    for (String declaredField : getAllDeclaredFieldsAsStringSet(classOfT)) {
        try {
            Field field = classOfT.getDeclaredField(declaredField);
            Class<?> fieldType = field.getType();
            field.setAccessible(true);
            if (parameters.containsKey(paramPrefix + declaredField)) {
                String[] values = parameters.get(paramPrefix + declaredField);
                if (Collection.class.isAssignableFrom(fieldType) || List.class.isAssignableFrom(fieldType)) {
                    ListParamParser<?> parser = (ListParamParser<?>) paramParsers.getListParser(getGenericType(field));
                    if (parser == null) {
                        logger.warn("No parser defined for a collection of type {}", getGenericType(field).getCanonicalName());
                    } else {
                        field.set(t, parser.parseParameter(field.getName(), values, context.getValidation()));
                    }
                } else if (fieldType.isArray()) {
                    ArrayParamParser<?> parser = paramParsers.getArrayParser(fieldType);
                    if (parser == null) {
                        logger.warn("No parser defined for an array of type {}", fieldType.getComponentType().getCanonicalName());
                    } else {
                        field.set(t, parser.parseParameter(field.getName(), values, context.getValidation()));
                    }
                } else {
                    ParamParser<?> parser = (ParamParser<?>) paramParsers.getParamParser(fieldType);
                    if (parser == null) {
                        logger.warn("No parser defined for type {}", fieldType.getCanonicalName());
                    } else {
                        field.set(t, parser.parseParameter(field.getName(), values[0], context.getValidation()));
                    }
                }
            } else {
                // Check if we have one parameter key corresponding to one valued inner attribute of this object field
                for (String parameter : parameters.keySet()) {
                    if (parameter.startsWith(paramPrefix + declaredField + ".")) {
                        if (isEmptyParameter(parameters.get(parameter))) {
                            field.set(t, invoke(context, parameters, fieldType, paramPrefix + declaredField + "."));
                            break;
                        }
                    }
                }
            }
        } catch (NoSuchFieldException | SecurityException | IllegalArgumentException | IllegalAccessException e) {
            logger.warn("Error parsing incoming Post request into class {}. Key {} and value {}.", classOfT.getName(), paramPrefix + declaredField, parameters.get(paramPrefix + declaredField), e);
        }
    }
    return t;
}