Examples with Thing io.openems.api.thing.Thing used on opensource projects

Example 16 with Thing

use of io.openems.api.thing.Thing in project openems by OpenEMS.

the class ConfigUtils method getConfigObject.

/**
 * Receives a matching value for the ConfigChannel from a JsonElement
 *
 * @param channel
 * @param j
 * @return
 * @throws OpenemsException
 */
public static Object getConfigObject(ConfigChannel<?> channel, JsonElement j, Object... args) throws OpenemsException {
    Optional<Class<?>> typeOptional = channel.type();
    if (!typeOptional.isPresent()) {
        String clazz = channel.parent() != null ? " in implementation [" + channel.parent().getClass() + "]" : "";
        throw new ReflectionException("Type is null for channel [" + channel.address() + "]" + clazz);
    }
    Class<?> type = typeOptional.get();
    /*
		 * test for simple types
		 */
    try {
        return JsonUtils.getAsType(type, j);
    } catch (NotImplementedException e1) {
        ;
    }
    if (Thing.class.isAssignableFrom(type)) {
        /*
			 * Asking for a Thing
			 */
        @SuppressWarnings("unchecked") Class<Thing> thingType = (Class<Thing>) type;
        return getThingFromConfig(thingType, j, args);
    } else if (ThingMap.class.isAssignableFrom(type)) {
        /*
			 * Asking for a ThingMap
			 */
        return InjectionUtils.getThingMapsFromConfig(channel, j);
    } else if (Inet4Address.class.isAssignableFrom(type)) {
        /*
			 * Asking for an IPv4
			 */
        try {
            return Inet4Address.getByName(j.getAsString());
        } catch (UnknownHostException e) {
            throw new ReflectionException("Unable to convert [" + j + "] to IPv4 address");
        }
    } else if (Long[].class.isAssignableFrom(type)) {
        /*
			 * Asking for an Array of Long
			 */
        return getLongArrayFromConfig(channel, j);
    }
    throw new ReflectionException("Unable to match config [" + j + "] to class type [" + type + "]");
}

Example 17 with Thing

use of io.openems.api.thing.Thing in project openems by OpenEMS.

the class InjectionUtils method getThingMapsFromConfig.

public static Object getThingMapsFromConfig(ConfigChannel<?> channel, JsonElement j) throws ReflectionException {
    /*
		 * Get "Field" in Channels parent class
		 */
    Field field;
    try {
        field = channel.parent().getClass().getField(channel.id());
    } catch (NoSuchFieldException | SecurityException e) {
        throw new ReflectionException("Field for ConfigChannel [" + channel.address() + "] is not named [" + channel.id() + "] in [" + channel.getClass().getSimpleName() + "]");
    }
    /*
		 * Get expected Object Type (List, Set, simple Object)
		 */
    Type expectedObjectType = ((ParameterizedType) field.getGenericType()).getActualTypeArguments()[0];
    if (expectedObjectType instanceof ParameterizedType) {
        expectedObjectType = ((ParameterizedType) expectedObjectType).getRawType();
    }
    Class<?> expectedObjectClass = (Class<?>) expectedObjectType;
    /*
		 * Get the ThingMap class
		 */
    Class<?> thingMapClass = channel.type().get();
    /*
		 * Get the referenced Thing class
		 */
    IsThingMap isThingMapAnnotation = thingMapClass.getAnnotation(IsThingMap.class);
    Class<? extends Thing> thingClass = isThingMapAnnotation.type();
    /*
		 * Prepare filter for matching Things
		 * - Empty filter: accept nothing
		 * - Asterisk: accept everything
		 * - Otherwise: accept only exact string matches on the thing id
		 */
    Set<String> filter = new HashSet<>();
    if (j.isJsonPrimitive()) {
        String id = j.getAsJsonPrimitive().getAsString();
        filter.add(id);
    } else if (j.isJsonArray()) {
        j.getAsJsonArray().forEach(id -> filter.add(id.getAsString()));
    }
    /*
		 * Create ThingMap instance(s) for each matching Thing
		 */
    ThingRepository thingRepository = ThingRepository.getInstance();
    Set<Thing> matchingThings = thingRepository.getThingsAssignableByClass(thingClass);
    Set<ThingMap> thingMaps = new HashSet<>();
    for (Thing thing : matchingThings) {
        if (filter.contains(thing.id()) || filter.contains("*")) {
            ThingMap thingMap = (ThingMap) InjectionUtils.getInstance(thingMapClass, thing);
            thingMaps.add(thingMap);
        }
    }
    /*
		 * Prepare return
		 */
    if (thingMaps.isEmpty() && !filter.isEmpty()) {
        throw new ReflectionException("No matching ThingMap found for ConfigChannel [" + channel.address() + "]");
    }
    if (Collection.class.isAssignableFrom(expectedObjectClass)) {
        if (Set.class.isAssignableFrom(expectedObjectClass)) {
            return thingMaps;
        } else if (List.class.isAssignableFrom(expectedObjectClass)) {
            return new ArrayList<>(thingMaps);
        } else {
            throw new ReflectionException("Only List and Set ConfigChannels are currently implemented, not [" + expectedObjectClass + "]. ConfigChannel [" + channel.address() + "]");
        }
    } else {
        // No collection
        if (thingMaps.size() > 1) {
            throw new ReflectionException("Field for ConfigChannel [" + channel.address() + "] is no collection, but more than one ThingMaps [" + thingMaps + "] is fitting for [" + channel.id() + "] in [" + channel.getClass().getSimpleName() + "]");
        } else {
            return thingMaps.iterator().next();
        }
    }
}