Пример #1
0
  @SuppressWarnings("unchecked")
  public static Object directBind(
      String name, Annotation[] annotations, String value, Class<?> clazz, Type type)
      throws Exception {
    Logger.trace(
        "directBind: value ["
            + value
            + "] annotation ["
            + Utils.join(annotations, " ")
            + "] Class ["
            + clazz
            + "]");

    boolean nullOrEmpty = value == null || value.trim().length() == 0;

    if (annotations != null) {
      for (Annotation annotation : annotations) {
        if (annotation.annotationType().equals(As.class)) {
          Class<? extends TypeBinder<?>> toInstanciate = ((As) annotation).binder();
          if (!(toInstanciate.equals(As.DEFAULT.class))) {
            // Instantiate the binder
            TypeBinder<?> myInstance = toInstanciate.newInstance();
            return myInstance.bind(name, annotations, value, clazz, type);
          }
        }
      }
    }

    // custom types
    for (Class<?> c : supportedTypes.keySet()) {
      Logger.trace("directBind: value [" + value + "] c [" + c + "] Class [" + clazz + "]");
      if (c.isAssignableFrom(clazz)) {
        Logger.trace("directBind: isAssignableFrom is true");
        return supportedTypes.get(c).bind(name, annotations, value, clazz, type);
      }
    }

    // application custom types
    for (Class<TypeBinder<?>> c : Play.classloader.getAssignableClasses(TypeBinder.class)) {
      if (c.isAnnotationPresent(Global.class)) {
        Class<?> forType =
            (Class) ((ParameterizedType) c.getGenericInterfaces()[0]).getActualTypeArguments()[0];
        if (forType.isAssignableFrom(clazz)) {
          return c.newInstance().bind(name, annotations, value, clazz, type);
        }
      }
    }

    // raw String
    if (clazz.equals(String.class)) {
      return value;
    }

    // Enums
    if (Enum.class.isAssignableFrom(clazz)) {
      if (nullOrEmpty) {
        return null;
      }
      return Enum.valueOf((Class<Enum>) clazz, value);
    }

    // int or Integer binding
    if (clazz.getName().equals("int") || clazz.equals(Integer.class)) {
      if (nullOrEmpty) {
        return clazz.isPrimitive() ? 0 : null;
      }

      return Integer.parseInt(value.contains(".") ? value.substring(0, value.indexOf(".")) : value);
    }

    // long or Long binding
    if (clazz.getName().equals("long") || clazz.equals(Long.class)) {
      if (nullOrEmpty) {
        return clazz.isPrimitive() ? 0l : null;
      }

      return Long.parseLong(value.contains(".") ? value.substring(0, value.indexOf(".")) : value);
    }

    // byte or Byte binding
    if (clazz.getName().equals("byte") || clazz.equals(Byte.class)) {
      if (nullOrEmpty) {
        return clazz.isPrimitive() ? (byte) 0 : null;
      }

      return Byte.parseByte(value.contains(".") ? value.substring(0, value.indexOf(".")) : value);
    }

    // short or Short binding
    if (clazz.getName().equals("short") || clazz.equals(Short.class)) {
      if (nullOrEmpty) {
        return clazz.isPrimitive() ? (short) 0 : null;
      }

      return Short.parseShort(value.contains(".") ? value.substring(0, value.indexOf(".")) : value);
    }

    // float or Float binding
    if (clazz.getName().equals("float") || clazz.equals(Float.class)) {
      if (nullOrEmpty) {
        return clazz.isPrimitive() ? 0f : null;
      }

      return Float.parseFloat(value);
    }

    // double or Double binding
    if (clazz.getName().equals("double") || clazz.equals(Double.class)) {
      if (nullOrEmpty) {
        return clazz.isPrimitive() ? 0d : null;
      }

      return Double.parseDouble(value);
    }

    // BigDecimal binding
    if (clazz.equals(BigDecimal.class)) {
      if (nullOrEmpty) {
        return null;
      }

      return new BigDecimal(value);
    }

    // boolean or Boolean binding
    if (clazz.getName().equals("boolean") || clazz.equals(Boolean.class)) {
      if (nullOrEmpty) {
        return clazz.isPrimitive() ? false : null;
      }

      if (value.equals("1")
          || value.toLowerCase().equals("on")
          || value.toLowerCase().equals("yes")) {
        return true;
      }

      return Boolean.parseBoolean(value);
    }

    return null;
  }
Пример #2
0
  @SuppressWarnings("unchecked")
  static Object bindInternal(
      String name,
      Class clazz,
      Type type,
      Annotation[] annotations,
      Map<String, String[]> params,
      String suffix,
      String[] profiles) {
    try {
      Logger.trace("bindInternal: name [" + name + "] suffix [" + suffix + "]");

      String[] value = params.get(name + suffix);
      Logger.trace("bindInternal: value [" + value + "]");
      Logger.trace("bindInternal: profile [" + Utils.join(profiles, ",") + "]");
      // Let see if we have a BindAs annotation and a separator. If so, we need to split the values
      // Look up for the BindAs annotation. Extract the profile if there is any.
      // TODO: Move me somewhere else?
      if (annotations != null) {
        for (Annotation annotation : annotations) {
          if ((clazz.isArray() || Collection.class.isAssignableFrom(clazz))
              && value != null
              && value.length > 0
              && annotation.annotationType().equals(As.class)) {
            As as = ((As) annotation);
            final String separator = as.value()[0];
            value = value[0].split(separator);
          }
          if (annotation.annotationType().equals(NoBinding.class)) {
            NoBinding bind = ((NoBinding) annotation);
            String[] localUnbindProfiles = bind.value();
            Logger.trace(
                "bindInternal: localUnbindProfiles [" + Utils.join(localUnbindProfiles, ",") + "]");

            if (localUnbindProfiles != null && contains(profiles, localUnbindProfiles)) {
              return NO_BINDING;
            }
          }
        }
      }

      // Arrays types
      // The array condition is not so nice... We should find another way of doing this....
      if (clazz.isArray()
          && (clazz != byte[].class
              && clazz != byte[][].class
              && clazz != File[].class
              && clazz != Upload[].class)) {
        if (value == null) {
          value = params.get(name + suffix + "[]");
        }
        if (value == null) {
          return MISSING;
        }
        Object r = Array.newInstance(clazz.getComponentType(), value.length);
        for (int i = 0; i <= value.length; i++) {
          try {
            Array.set(r, i, directBind(name, annotations, value[i], clazz.getComponentType()));
          } catch (Exception e) {
            // ?? One item was bad
          }
        }
        return r;
      }
      // Enums
      if (Enum.class.isAssignableFrom(clazz)) {
        if (value == null || value.length == 0) {
          return MISSING;
        } else if (StringUtils.isEmpty(value[0])) {
          return null;
        }
        return Enum.valueOf(clazz, value[0]);
      }
      // Map
      if (Map.class.isAssignableFrom(clazz)) {
        Class keyClass = String.class;
        Class valueClass = String.class;
        if (type instanceof ParameterizedType) {
          keyClass = (Class) ((ParameterizedType) type).getActualTypeArguments()[0];
          valueClass = (Class) ((ParameterizedType) type).getActualTypeArguments()[1];
        }

        // Special case Map<String, String>
        // Multivalues composite params are binded to a Map<String, String>
        // see http://play.lighthouseapp.com/projects/57987/tickets/443
        if (keyClass == String.class && valueClass == String.class && isComposite(name, params)) {
          Map<String, String> stringMap = Utils.filterParams(params, name);
          if (stringMap.size() > 0) return stringMap;
        }

        // Search for all params
        Map<Object, Object> r = new HashMap<Object, Object>();
        for (String param : params.keySet()) {
          Pattern p = Pattern.compile("^" + name + suffix + "\\[([^\\]]+)\\](.*)$");
          Matcher m = p.matcher(param);
          if (m.matches()) {
            String key = m.group(1);
            value = params.get(param);
            Map<String, String[]> tP = new HashMap<String, String[]>();
            tP.put("key", new String[] {key});
            Object oKey = bindInternal("key", keyClass, keyClass, annotations, tP, "", value);
            if (oKey != MISSING) {
              if (isComposite(name + suffix + "[" + key + "]", params)) {
                BeanWrapper beanWrapper = getBeanWrapper(valueClass);
                Object oValue =
                    beanWrapper.bind(
                        "", type, params, name + suffix + "[" + key + "]", annotations);
                r.put(oKey, oValue);
              } else {
                tP = new HashMap<String, String[]>();
                tP.put("value", params.get(name + suffix + "[" + key + "]"));
                Object oValue =
                    bindInternal("value", valueClass, valueClass, annotations, tP, "", value);
                if (oValue != MISSING) {
                  r.put(oKey, oValue);
                } else {
                  r.put(oKey, null);
                }
              }
            }
          }
        }
        return r;
      }
      // Collections types
      if (Collection.class.isAssignableFrom(clazz)) {
        if (clazz.isInterface()) {
          if (clazz.equals(List.class)) {
            clazz = ArrayList.class;
          }
          if (clazz.equals(Set.class)) {
            clazz = HashSet.class;
          }
          if (clazz.equals(SortedSet.class)) {
            clazz = TreeSet.class;
          }
        }
        Collection r = (Collection) clazz.newInstance();
        Class componentClass = String.class;
        if (type instanceof ParameterizedType) {
          componentClass = (Class) ((ParameterizedType) type).getActualTypeArguments()[0];
        }
        // Create a an array of the component class
        if (value != null) {
          Object customArray = Array.newInstance(componentClass, value.length);
          // custom types
          for (Class<?> c : supportedTypes.keySet()) {
            if (c.isAssignableFrom(customArray.getClass())) {
              Object[] ar =
                  (Object[])
                      supportedTypes
                          .get(c)
                          .bind("value", annotations, name, customArray.getClass(), null);
              List l = Arrays.asList(ar);
              if (clazz.equals(HashSet.class)) {
                return new HashSet(l);
              } else if (clazz.equals(TreeSet.class)) {
                return new TreeSet(l);
              }
              return l;
            }
          }
        }
        if (value == null) {
          value = params.get(name + suffix + "[]");
          if (value == null && r instanceof List) {
            for (String param : params.keySet()) {
              Pattern p = Pattern.compile("^" + escape(name + suffix) + "\\[([0-9]+)\\](.*)$");
              Matcher m = p.matcher(param);
              if (m.matches()) {
                int key = Integer.parseInt(m.group(1));
                while (((List<?>) r).size() <= key) {
                  ((List<?>) r).add(null);
                }
                if (isComposite(name + suffix + "[" + key + "]", params)) {
                  BeanWrapper beanWrapper = getBeanWrapper(componentClass);
                  Object oValue =
                      beanWrapper.bind(
                          "", type, params, name + suffix + "[" + key + "]", annotations);
                  ((List) r).set(key, oValue);
                } else {
                  Map<String, String[]> tP = new HashMap<String, String[]>();
                  tP.put("value", params.get(name + suffix + "[" + key + "]"));
                  Object oValue =
                      bindInternal(
                          "value", componentClass, componentClass, annotations, tP, "", value);
                  if (oValue != MISSING) {
                    ((List) r).set(key, oValue);
                  }
                }
              }
            }
            return r.isEmpty() ? MISSING : r;
          }
        }
        if (value == null) {
          return MISSING;
        }
        for (String v : value) {
          try {
            r.add(directBind(name, annotations, v, componentClass));
          } catch (Exception e) {
            // ?? One item was bad
            Logger.debug(e, "error:");
          }
        }
        return r;
      }

      // Assume a Bean if isComposite
      Logger.trace(
          "bindInternal: class ["
              + clazz
              + "] name ["
              + name
              + "] annotation ["
              + Utils.join(annotations, " ")
              + "] isComposite ["
              + isComposite(name + suffix, params)
              + "]");
      if (isComposite(name + suffix, params)) {
        BeanWrapper beanWrapper = getBeanWrapper(clazz);
        return beanWrapper.bind(name, type, params, suffix, annotations);
      }

      // Simple types
      if (value == null || value.length == 0) {
        return MISSING;
      }

      return directBind(name, annotations, value[0], clazz, type);
    } catch (Exception e) {
      Validation.addError(name + suffix, "validation.invalid");
      return MISSING;
    }
  }
Пример #3
0
  public static Object bind(
      String name,
      Class<?> clazz,
      Type type,
      Annotation[] annotations,
      Map<String, String[]> params,
      Object o,
      Method method,
      int parameterIndex) {
    Logger.trace("bind: name [" + name + "] annotation [" + Utils.join(annotations, " ") + "] ");

    Object result = null;
    // Let a chance to plugins to bind this object
    for (PlayPlugin plugin : Play.plugins) {
      result = plugin.bind(name, clazz, type, annotations, params);
      if (result != null) {
        return result;
      }
    }
    String[] profiles = null;
    if (annotations != null) {
      for (Annotation annotation : annotations) {
        if (annotation.annotationType().equals(As.class)) {
          As as = ((As) annotation);
          profiles = as.value();
        }
        if (annotation.annotationType().equals(NoBinding.class)) {
          NoBinding bind = ((NoBinding) annotation);
          profiles = bind.value();
        }
      }
    }
    result = bindInternal(name, clazz, type, annotations, params, "", profiles);

    if (result == MISSING) {
      // Try the scala default
      if (o != null && parameterIndex > 0) {
        try {
          Method defaultMethod =
              method
                  .getDeclaringClass()
                  .getDeclaredMethod(method.getName() + "$default$" + parameterIndex);
          return defaultMethod.invoke(o);
        } catch (NoSuchMethodException e) {
          //
        } catch (Exception e) {
          throw new UnexpectedException(e);
        }
      }
      if (clazz.equals(boolean.class)) {
        return false;
      }
      if (clazz.equals(int.class)) {
        return 0;
      }
      if (clazz.equals(long.class)) {
        return 0;
      }
      if (clazz.equals(double.class)) {
        return 0;
      }
      if (clazz.equals(short.class)) {
        return 0;
      }
      if (clazz.equals(byte.class)) {
        return 0;
      }
      if (clazz.equals(char.class)) {
        return ' ';
      }
      return null;
    }
    return result;
  }