Examples with ReifiedType org.osgi.service.blueprint.container.ReifiedType used on opensource projects

Example 16 with ReifiedType

use of org.osgi.service.blueprint.container.ReifiedType in project aries by apache.

the class CollectionRecipe method internalCreate.

protected Object internalCreate() throws ComponentDefinitionException {
    Class type = getCollection(collectionTypeClass);
    if (!ReflectionUtils.hasDefaultConstructor(type)) {
        throw new ComponentDefinitionException("Type does not have a default constructor " + type.getName());
    }
    // create collection instance
    Object o;
    try {
        o = type.newInstance();
    } catch (Exception e) {
        throw new ComponentDefinitionException("Error while creating collection instance: " + type.getName());
    }
    if (!(o instanceof Collection)) {
        throw new ComponentDefinitionException("Specified collection type does not implement the Collection interface: " + type.getName());
    }
    Collection instance = (Collection) o;
    ReifiedType defaultConversionType = loadType(defaultValueType);
    Type conversionType = null;
    for (Recipe recipe : list) {
        Object value;
        if (recipe != null) {
            try {
                conversionType = defaultConversionType.getRawClass();
                if (recipe instanceof ValueRecipe) {
                    conversionType = ((ValueRecipe) recipe).getValueType();
                }
                value = convert(recipe.create(), conversionType);
            } catch (Exception e) {
                throw new ComponentDefinitionException("Unable to convert value " + recipe + " to type " + conversionType, e);
            }
        } else {
            value = null;
        }
        instance.add(value);
    }
    return instance;
}