@Override
public Object bind(
RootParamNode rootParamNode,
String name,
Class clazz,
java.lang.reflect.Type type,
Annotation[] annotations) {
// TODO need to be more generic in order to work with JPASupport
if (clazz.isAnnotationPresent(Entity.class)) {
ParamNode paramNode = rootParamNode.getChild(name, true);
String[] keyNames = new JPAModelLoader(clazz).keyNames();
ParamNode[] ids = new ParamNode[keyNames.length];
// Collect the matching ids
int i = 0;
for (String keyName : keyNames) {
ids[i++] = paramNode.getChild(keyName, true);
}
if (ids != null && ids.length > 0) {
try {
EntityManager em = JPABase.getJPAConfig(clazz).getJPAContext().em();
StringBuilder q =
new StringBuilder().append("from ").append(clazz.getName()).append(" o where");
int keyIdx = 1;
for (String keyName : keyNames) {
q.append(" o.").append(keyName).append(" = ?").append(keyIdx++).append(" and ");
}
if (q.length() > 4) {
q = q.delete(q.length() - 4, q.length());
}
Query query = em.createQuery(q.toString());
// The primary key can be a composite.
Class[] pk = new JPAModelLoader(clazz).keyTypes();
int j = 0;
for (ParamNode id : ids) {
if (id.getValues() == null
|| id.getValues().length == 0
|| id.getFirstValue(null) == null
|| id.getFirstValue(null).trim().length() <= 0) {
// We have no ids, it is a new entity
return GenericModel.create(rootParamNode, name, clazz, annotations);
}
query.setParameter(
j + 1,
Binder.directBind(
id.getOriginalKey(), annotations, id.getValues()[0], pk[j++], null));
}
Object o = query.getSingleResult();
return GenericModel.edit(rootParamNode, name, o, annotations);
} catch (NoResultException e) {
// ok
} catch (Exception e) {
throw new UnexpectedException(e);
}
}
return GenericModel.create(rootParamNode, name, clazz, annotations);
}
return null;
}
public RootParamNode getRootParamNode() {
checkAndParse();
if (!rootParamsNodeIsGenerated) {
rootParamNode = ParamNode.convert(data);
rootParamsNodeIsGenerated = true;
}
return rootParamNode;
}
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;
}
public RootParamNode getRootParamNodeFromRequest() {
return ParamNode.convert(data);
}