public static Object[] getActionMethodArgs(Method method, Object o) throws Exception {
String[] paramsNames = Java.parameterNames(method);
if (paramsNames == null && method.getParameterTypes().length > 0) {
throw new UnexpectedException("Parameter names not found for method " + method);
}
// Check if we have already performed the bind operation
Object[] rArgs = CachedBoundActionMethodArgs.current().retrieveActionMethodArgs(method);
if (rArgs != null) {
// We have already performed the binding-operation for this method
// in this request.
return rArgs;
}
rArgs = new Object[method.getParameterTypes().length];
for (int i = 0; i < method.getParameterTypes().length; i++) {
Class<?> type = method.getParameterTypes()[i];
Map<String, String[]> params = new HashMap<String, String[]>();
// In case of simple params, we don't want to parse the body.
if (type.equals(String.class) || Number.class.isAssignableFrom(type) || type.isPrimitive()) {
params.put(paramsNames[i], Scope.Params.current().getAll(paramsNames[i]));
} else {
params.putAll(Scope.Params.current().all());
}
Logger.trace(
"getActionMethodArgs name ["
+ paramsNames[i]
+ "] annotation ["
+ Utils.join(method.getParameterAnnotations()[i], " ")
+ "]");
RootParamNode root = ParamNode.convert(params);
rArgs[i] =
Binder.bind(
root,
paramsNames[i],
method.getParameterTypes()[i],
method.getGenericParameterTypes()[i],
method.getParameterAnnotations()[i],
new Binder.MethodAndParamInfo(o, method, i + 1));
}
CachedBoundActionMethodArgs.current().storeActionMethodArgs(method, rArgs);
return rArgs;
}
@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;
}
@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;
}
}
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;
}