/** Creates a {@link PluginPropertyField} based on the given field. */
private PluginPropertyField createPluginProperty(Field field, TypeToken<?> resolvingType)
throws UnsupportedTypeException {
TypeToken<?> fieldType = resolvingType.resolveType(field.getGenericType());
Class<?> rawType = fieldType.getRawType();
Name nameAnnotation = field.getAnnotation(Name.class);
Description descAnnotation = field.getAnnotation(Description.class);
String name = nameAnnotation == null ? field.getName() : nameAnnotation.value();
String description = descAnnotation == null ? "" : descAnnotation.value();
if (rawType.isPrimitive()) {
return new PluginPropertyField(name, description, rawType.getName(), true);
}
rawType = Primitives.unwrap(rawType);
if (!rawType.isPrimitive() && !String.class.equals(rawType)) {
throw new UnsupportedTypeException("Only primitive and String types are supported");
}
boolean required = true;
for (Annotation annotation : field.getAnnotations()) {
if (annotation.annotationType().getName().endsWith(".Nullable")) {
required = false;
break;
}
}
return new PluginPropertyField(
name, description, rawType.getSimpleName().toLowerCase(), required);
}
/**
* Gets all config properties for the given plugin.
*
* @return the name of the config field in the plugin class or {@code null} if the plugin doesn't
* have a config field
*/
@Nullable
private String getProperties(TypeToken<?> pluginType, Map<String, PluginPropertyField> result)
throws UnsupportedTypeException {
// Get the config field
for (TypeToken<?> type : pluginType.getTypes().classes()) {
for (Field field : type.getRawType().getDeclaredFields()) {
TypeToken<?> fieldType = TypeToken.of(field.getGenericType());
if (PluginConfig.class.isAssignableFrom(fieldType.getRawType())) {
// Pick up all config properties
inspectConfigField(fieldType, result);
return field.getName();
}
}
}
return null;
}
@SuppressWarnings("unchecked")
public static <T> T cast(Object obj, Class<T> clazz) throws Exception {
if (obj == null) {
return null;
}
TypeToken<T> type = TypeToken.of(clazz).wrap();
TypeToken<?> objType = TypeToken.of(obj.getClass()).wrap();
if (type.isAssignableFrom(objType)) {
return (T) obj;
}
if (TypeToken.of(List.class).isAssignableFrom(type) && objType.isArray()) {
List<Object> list = Arrays.asList((Object[]) obj);
return (T) list;
}
if (type.isArray() && TypeToken.of(List.class).isAssignableFrom(objType)) {
List<?> list = (List<?>) obj;
TypeToken<?> componentType = type.getComponentType();
Class<?> rawType;
if (componentType == null) {
rawType = Object.class;
} else {
rawType = componentType.getRawType();
}
Object[] array = (Object[]) Array.newInstance(rawType, list.size());
return (T) list.toArray(array);
}
if (clazz.isEnum()) {
return (T) Enum.valueOf((Class<? extends Enum>) clazz, obj.toString());
}
if (TypeToken.of(String.class).isAssignableFrom(type)) {
return (T) obj.toString();
}
if (TypeToken.of(Number.class).isAssignableFrom(type)) {
BigDecimal num = new BigDecimal(obj.toString());
if (TypeToken.of(Integer.class).isAssignableFrom(type)) {
return (T) Integer.valueOf(num.intValue());
}
if (TypeToken.of(Long.class).isAssignableFrom(type)) {
return (T) Long.valueOf(num.longValue());
}
if (TypeToken.of(Short.class).isAssignableFrom(type)) {
return (T) Short.valueOf(num.shortValue());
}
if (TypeToken.of(Byte.class).isAssignableFrom(type)) {
return (T) Byte.valueOf(num.byteValue());
}
if (TypeToken.of(Float.class).isAssignableFrom(type)) {
return (T) Float.valueOf(num.floatValue());
}
if (TypeToken.of(Double.class).isAssignableFrom(type)) {
return (T) Double.valueOf(num.doubleValue());
}
}
return null;
}
/**
* Inspects the plugin config class and build up a map for {@link PluginPropertyField}.
*
* @param configType type of the config class
* @param result map for storing the result
* @throws UnsupportedTypeException if a field type in the config class is not supported
*/
private void inspectConfigField(TypeToken<?> configType, Map<String, PluginPropertyField> result)
throws UnsupportedTypeException {
for (TypeToken<?> type : configType.getTypes().classes()) {
if (PluginConfig.class.equals(type.getRawType())) {
break;
}
for (Field field : type.getRawType().getDeclaredFields()) {
PluginPropertyField property = createPluginProperty(field, type);
if (result.containsKey(property.getName())) {
throw new IllegalArgumentException(
"Plugin config with name "
+ property.getName()
+ " already defined in "
+ configType.getRawType());
}
result.put(property.getName(), property);
}
}
}
/**
* Constructor.
*
* @param contentType the type of request this parser can handle
*/
protected ParserSupport(String contentType) {
this.contentType = contentType;
TypeToken<O> typeToken = new TypeToken<O>(getClass()) {};
if (typeToken.getType() instanceof Class) {
@SuppressWarnings("unchecked")
Class<O> rawType = (Class<O>) typeToken.getRawType();
this.optsType = rawType;
} else {
throw new IllegalArgumentException("Type parameter O of ParserSupport must be a Class");
}
}
public static void main(String[] args) {
ApplicationContext appContext = new AnnotationConfigApplicationContext(FieldsCheckerMain.class);
FieldsChecker fieldsChecker = appContext.getBean(FieldsChecker.class);
fieldsChecker.checkTableFields();
boolean resolved = false;
TypeToken mapOfString = TypeTokens.mapOf(String.class, String.class);
Type type = mapOfString.getType();
if (type instanceof ParameterizedType) {
ParameterizedType pType = (ParameterizedType) type;
Type[] types = pType.getActualTypeArguments();
if (types.length == 2) {
TypeToken valueType = TypeToken.of(types[1]);
resolved = valueType.getRawType().equals(String.class);
}
}
System.out.println(resolved);
}
public GenericMongoRepository(MongoOperations mongoOperations) {
Assert.notNull(mongoOperations);
this.mongoOperations = mongoOperations;
TypeToken<T> typeToken = new TypeToken<T>(getClass()) {};
model = (Class<T>) typeToken.getRawType();
}
public void print() {
System.out.println(((Class<T>) recordType.getRawType()).getSimpleName());
}
public Class<E> getType() {
return (Class<E>) typeToken.getRawType();
}