public static boolean isFieldCollectionOfModel(Field field) {
boolean res = true;
try {
String type = field.getGenericType().toString();
String paraType = type.substring(type.indexOf('<') + 1, type.indexOf('>'));
debug("paraType=" + paraType);
if (ModelObject.class.isAssignableFrom(Class.forName(paraType))) {
res = true;
} else {
res = false;
}
} catch (ClassNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return res;
}
// to be used in DAOImpl.update only
public static void copySimpleProperties(ModelObject dest, ModelObject orig) {
try {
PropertyDescriptor srcDescriptors[] =
BeanUtilsBean.getInstance().getPropertyUtils().getPropertyDescriptors(dest);
for (PropertyDescriptor pd : srcDescriptors) {
String name = pd.getName();
if ("class".equals(name)) {
continue;
}
if ("id".equals(name)) {
// TODO hardcoded. for update, never change Id field
continue;
}
Class type = pd.getPropertyType();
debug("copySimpleProperties-- name=" + name + ", type=" + type);
if (Collection.class.isAssignableFrom(type)) {
Field field = dest.getClass().getDeclaredField(name);
if (MyPropertyUtil.isFieldCollectionOfModel(field)) {
// ingore collection of Model
continue;
} else {
PropertyUtils.setProperty(dest, name, PropertyUtils.getProperty(orig, name));
}
} else if (ModelObject.class.isAssignableFrom(type)) {
// we do not support editing of associated object at this point
// nor pointing to another associated object
continue;
} else {
PropertyUtils.setProperty(dest, name, PropertyUtils.getProperty(orig, name));
}
}
} catch (Exception e) {
throw new RuntimeException(e);
}
}
public static void form2To(ModelObject dest, Map<String, Object> orig) {
debug("form2To-- props:" + orig);
try {
HashMap<String, Object> _props = new HashMap<String, Object>();
PropertyDescriptor srcDescriptors[] =
BeanUtilsBean.getInstance().getPropertyUtils().getPropertyDescriptors(dest);
for (PropertyDescriptor pd : srcDescriptors) {
String fn = pd.getName();
if ("class".equals(fn)) {
continue;
}
Class type = pd.getPropertyType();
debug("fn:" + fn + " type:" + type);
if (!orig.containsKey(fn)) {
continue;
}
Object value = orig.get(fn);
if (value == null) {
_props.put(fn, value);
continue;
}
if (ModelObject.class.isAssignableFrom(type)) {
String bean = type.getSimpleName();
if (value instanceof String) {
// the value is ID
debug("form2To-- type=" + type);
ModelObject mo = (ModelObject) type.newInstance();
mo.setModelId((String) value);
// ModelObject mo = getModelObject(bean, (String)value);
_props.put(fn, mo);
} else if (value instanceof Map) {
Map<String, Object> cprops = (Map<String, Object>) value;
ModelObject mo = (ModelObject) type.newInstance();
form2To(mo, cprops);
_props.put(fn, mo);
} else {
throw new RuntimeException(
"Unknown value type: " + value + "," + value.getClass() + " bean:" + bean);
}
} else if (Collection.class.isAssignableFrom(type)) {
Collection col = null;
if (value != null) {
if (MyPropertyUtil.isFieldCollectionOfModel(dest.getClass().getDeclaredField(fn))) {
// NOTE: this means always Add/Update child ModelObject separately
continue;
} else {
// String bean = config.getItemType(obj.getModelName(), fn);
if (value instanceof String) {
col = (Collection) PropertyUtils.getProperty(dest, fn);
String val = (String) value;
if (((String) val).indexOf(",") > 0) {
// for properties like Goods.categoryIds which is internally list of String,
// and submitted in the format of comma-separated string
// TODO escape ","
String[] values = ConvertUtil.split(val, ",");
col.addAll(Arrays.asList(values));
} else {
col.add(value);
}
} else if (value instanceof Collection) {
Collection c = (Collection) value;
col = (Collection) PropertyUtils.getProperty(dest, fn);
debug("size: " + c.size());
col.addAll(c);
// _props.put(fn, c);
}
}
// else {
//// throw new RuntimeException("Unknown value type: " +
// value+","+value.getClass()+" bean:"+bean);
// throw new RuntimeException("Unknown value type: " +
// value+","+value.getClass());
// }
} else {
// keep the old value
col = (Collection) PropertyUtils.getProperty(dest, fn);
}
// _props.put(fn, col);
} else {
_props.put(fn, value);
}
}
debug("form2To-- _props:" + _props);
BeanUtils.populate(dest, _props);
} catch (Exception e) {
e.printStackTrace();
}
}