Example #1
0
  static <T> T set(Class<T> interf, Object value) {
    Properties p = new Properties();
    Method ms[] = interf.getMethods();

    for (Method m : ms) {
      p.put(m.getName(), value);
    }
    return Configurable.createConfigurable(interf, (Map<Object, Object>) p);
  }
  private JSONArray getClassProperties(Class<?> clazz, int level) throws IntrospectionException {
    JSONArray arr = new JSONArray();
    TypeDiscoverer td = new TypeDiscoverer();
    try {
      for (PropertyDescriptor pd : Introspector.getBeanInfo(clazz).getPropertyDescriptors()) {
        Method readMethod = pd.getReadMethod();
        if (readMethod != null) {
          if (readMethod.getDeclaringClass() == java.lang.Enum.class) {
            // skip getDeclaringClass
            continue;
          } else if ("class".equals(pd.getName())) {
            // skip getClass
            continue;
          }
        } else {
          // yields com.datatorrent.api.Context on JDK6 and
          // com.datatorrent.api.Context.OperatorContext with JDK7
          if ("up".equals(pd.getName())
              && com.datatorrent.api.Context.class.isAssignableFrom(pd.getPropertyType())) {
            continue;
          }
        }
        // LOG.info("name: " + pd.getName() + " type: " + pd.getPropertyType());

        Class<?> propertyType = pd.getPropertyType();
        if (propertyType != null) {
          JSONObject propertyObj = new JSONObject();
          propertyObj.put("name", pd.getName());
          propertyObj.put("canGet", readMethod != null);
          propertyObj.put("canSet", pd.getWriteMethod() != null);
          if (readMethod != null) {
            for (Class<?> c = clazz; c != null; c = c.getSuperclass()) {
              OperatorClassInfo oci = classInfo.get(c.getName());
              if (oci != null) {
                MethodInfo getMethodInfo = oci.getMethods.get(readMethod.getName());
                if (getMethodInfo != null) {
                  addTagsToProperties(getMethodInfo, propertyObj);
                  break;
                }
              }
            }
            // type can be a type symbol or parameterized type
            td.setTypeArguments(clazz, readMethod.getGenericReturnType(), propertyObj);
          } else {
            if (pd.getWriteMethod() != null) {
              td.setTypeArguments(
                  clazz, pd.getWriteMethod().getGenericParameterTypes()[0], propertyObj);
            }
          }
          // if (!propertyType.isPrimitive() && !propertyType.isEnum() && !propertyType.isArray() &&
          // !propertyType.getName().startsWith("java.lang") && level < MAX_PROPERTY_LEVELS) {
          //  propertyObj.put("properties", getClassProperties(propertyType, level + 1));
          // }
          arr.put(propertyObj);
        }
      }
    } catch (JSONException ex) {
      throw new RuntimeException(ex);
    }
    return arr;
  }