Examples with TypeResolver com.serotonin.json.spi.TypeResolver used on opensource projects

Example 1 with TypeResolver

use of com.serotonin.json.spi.TypeResolver in project ma-core-public by infiniteautomation.

the class JsonReader method read.

/**
 * Return an object of the given generic type that represents the given JSON value. This method can be used when the
 * type to return is, say, List<MyObject>. To represent a specific type, use the TypeDefinition object.
 *
 * @param type
 *            the generic type of object to return
 * @param jsonValue
 *            the JSON value from which to get object data
 * @return the populated object
 * @throws JsonException
 */
public Object read(Type type, JsonValue jsonValue) throws JsonException {
    if (jsonValue == null)
        return null;
    Class<?> clazz = TypeUtils.getRawClass(type);
    TypeResolver resolver = context.getResolver(clazz);
    if (resolver != null) {
        type = resolver.resolve(jsonValue);
        clazz = TypeUtils.getRawClass(type);
    }
    ClassConverter converter = context.getConverter(clazz);
    Object value = converter.jsonRead(this, jsonValue, type);
    return value;
}

Example 2 with TypeResolver

use of com.serotonin.json.spi.TypeResolver in project ma-core-public by infiniteautomation.

the class SubclassTest method main.

public static void main(String[] args) throws Exception {
    JsonContext context = new JsonContext();
    context.addResolver(new TypeResolver() {

        @Override
        public Class<?> resolve(JsonValue jsonValue) throws JsonException {
            if (jsonValue.toJsonObject().containsKey("sub1Value"))
                return Subclass1.class;
            if (jsonValue.toJsonObject().containsKey("sub2Value"))
                return Subclass2.class;
            throw new JsonException("Unknown BaseClass: " + jsonValue);
        }
    }, BaseClass.class);
    // context.addFactory(new ObjectFactory() {
    // @Override
    // public Object create(JsonValue jsonValue) throws JsonException {
    // if (jsonValue.toJsonObject().hasProperty("sub1Value"))
    // return new Subclass1();
    // if (jsonValue.toJsonObject().hasProperty("sub2Value"))
    // return new Subclass2();
    // throw new JsonException("Unknown BaseClass: " + jsonValue);
    // }
    // }, BaseClass.class);
    // List<BaseClass> list = new ArrayList<BaseClass>();
    // list.add(new Subclass1());
    // list.add(new Subclass2());
    // 
    // String json = JsonWriter.writeToString(context, list);
    // 
    // System.out.println(json);
    String json = "[{\"id\":\"Subclass1\",\"sub1Value\":\"a\",\"baseValue\":\"b\"},{\"myId\":\"Subclass2\",\"sub2Value\":\"c\",\"baseValue\":\"d\"}]";
    JsonReader reader = new JsonReader(context, json);
    TypeDefinition type = new TypeDefinition(List.class, BaseClass.class);
    Object read = reader.read(type);
    System.out.println(read);
}