What i'm trying to do is to test if a role is affected to a user or not, the method (fig 1 ) which test is exposed with WCF Data Service, and i'm trying to call it (fig 2 ) from the client side. the call is correct because i tested a simple test which returns and i got what i want it to send but when i change the body of the method to send me wheter the user is in a role or not, it thows an exception ( dataservicequeryexception )
fig1:
[WebGet]
public bool Controler(string role, string user)
{
if(Roles.IsUserInRole(user,role))
{ return true; }
return false;
}
fig2:
Uri u = new Uri(string.Format(LogIn.ctx.BaseUri + "/Controler?role='{0}'&user='{1}'",
"Serveur","Oussama"), UriKind.RelativeOrAbsolute);
IEnumerable<bool> result = LogIn.ctx.Execute<bool>(u);
bool res = result.Single();
if (res == true)
{
Response.Redirect("Index.aspx");
}
else
{
Response.Redirect("Error.aspx");
}
thanks everyone !
Related
The bug in kaa 0.10 have Influenced my application development. So I try to fix it.Then I Compared the code of the kaa 0.9 and kaa 0.10. I have found the differences in class EndpointServiceImpl of Kaa DAO interface modular:there are two methods of attachEndpointToUser in it
1,
public EndpointProfileDto attachEndpointToUser(String endpointUserId, String
endpointAccessToken) throws KaaOptimisticLockingFailureException {
LOG.info("Try to attach endpoint with access token {} to user with {}", endpointAccessToken,
endpointUserId);
validateString(endpointUserId, "Incorrect endpointUserId "
+ endpointUserId);
EndpointUser endpointUser = endpointUserDao.findById(endpointUserId);
LOG.trace("[{}] Found endpoint user with id {} ", endpointUserId, endpointUser);
if (endpointUser
!= null) {
EndpointProfile endpoint = endpointProfileDao.findByAccessToken(endpointAccessToken);
LOG.trace("[{}] Found endpoint profile by with access token {} ", endpointAccessToken,
endpoint);
if (endpoint
!= null) {
if (endpoint.getEndpointUserId()
== null
|| endpointUserId.equals(endpoint.getEndpointUserId())) {
LOG.debug("Attach endpoint profile with id {} to endpoint user with id {} ", endpoint
.getId(), endpointUser.getId());
List<String> endpointIds = endpointUser.getEndpointIds();
**/*if (endpointIds
!= null
&& endpointIds.contains(endpoint.getId())) {
LOG.warn("Endpoint is already assigned to current user {}.", endpoint
.getEndpointUserId());
return getDto(endpoint);
}*/**
if (endpointIds
== null) {
endpointIds = new ArrayList<>();
endpointUser.setEndpointIds(endpointIds);
}
endpointIds.add(endpoint.getId());
endpointUser = endpointUserDao.save(endpointUser);
while (true) {
try {
endpoint.setEndpointUserId(endpointUser.getId());
LOG.trace("Save endpoint user {} and endpoint profile {}", endpointUser, endpoint);
endpoint = endpointProfileDao.save(endpoint);
break;
} catch (KaaOptimisticLockingFailureException ex) {
LOG.warn("Optimistic lock detected in endpoint profile ", Arrays.toString(endpoint
.getEndpointKey()), ex);
endpoint = endpointProfileDao.findByKeyHash(Sha1HashUtils.hashToBytes(endpoint
.getEndpointKey()));
}
}
return getDto(endpoint);
} else {
LOG.warn("Endpoint is already assigned to different user {}. Unassign it first!.",
endpoint.getEndpointUserId());
throw new DatabaseProcessingException("Endpoint is already assigned to different user.");
}
} else {
LOG.warn("Endpoint with accessToken {} is not present in db.", endpointAccessToken);
throw new DatabaseProcessingException("No endpoint found for specified accessToken.");
}
} else {
LOG.warn("Endpoint user with id {} is not present in db.", endpointUserId);
throw new DatabaseProcessingException("Endpoint user is not present in db.");
}
}
2,
public EndpointProfileDto attachEndpointToUser(String userExternalId, String tenantId,
EndpointProfileDto profile) {
validateString(userExternalId, "Incorrect userExternalId "
+ userExternalId);
EndpointUser endpointUser = endpointUserDao.findByExternalIdAndTenantId(userExternalId,
tenantId);
if (endpointUser
== null) {
LOG.info("Creating new endpoint user with external id: [{}] in context of [{}] tenant",
userExternalId, tenantId);
EndpointUserDto endpointUserDto = new EndpointUserDto();
endpointUserDto.setTenantId(tenantId);
endpointUserDto.setExternalId(userExternalId);
endpointUserDto.setUsername(userExternalId);
endpointUser = endpointUserDao.save(endpointUserDto);
}
List<String> endpointIds = endpointUser.getEndpointIds();
if (endpointIds
== null) {
endpointIds = new ArrayList<>();
endpointUser.setEndpointIds(endpointIds);
} **/*else if (endpointIds
!= null
&& endpointIds.contains(profile.getId())) {
LOG.warn("Endpoint is already assigned to current user {}.", profile.getEndpointUserId());
return profile;
}*/**
endpointIds.add(profile.getId());
endpointUser = endpointUserDao.save(endpointUser);
profile.setEndpointUserId(endpointUser.getId());
while (true) {
try {
LOG.trace("Save endpoint user {} and endpoint profile {}", endpointUser, profile);
return saveEndpointProfile(profile);
} catch (KaaOptimisticLockingFailureException ex) {
LOG.warn("Optimistic lock detected in endpoint profile ", Arrays.toString(profile
.getEndpointKey()), ex);
profile = findEndpointProfileByKeyHash(profile.getEndpointKeyHash());
profile.setEndpointUserId(endpointUser.getId());
}
}
}
The code above is in kaa 0.10 .Compared with the Kaa 0.9, it Added a judgment condition that in Bold code above:(
if(endpointIds!=null&&endpointIds.contains(endpoint.getId())) )
and
else if (endpointIds
!= null
&& endpointIds.contains(profile.getId())).
I have made a test that Commented the judgment condition codes. The result is OK. I want to know that the fix method is available .
You can contribute to kaa.
Description on this procedure you can find here.
In few words about it:
fork kaa repository here.
crete new branch with the content of branch you want to fix(release-0.10)
commit (commit message must begin with "KAA-1594:") and push changes into your fork.
create a pull request on kaa page (compare original kaa branch release-0.10 and your new edited branch)
allow changes from owners
you are done!
UPD: would be great if you describe the problem and your solution in issue on github it will help us to make official fix faster.
I got a problem when debugging my MVC program and I want to acces to my db called "UserActivity".
on the browser, it saying that "The localhost page isn’t working
localhost redirected you too many times."
but without showing the specific error location.
here is my UserActivtyController, GET /UserActivity/Index code:
public class UserActivityController : BaseController
{
//GET /UserActivity/Index
public ActionResult Index(string returnUrl, int page = 1, string sort = "Id", string sortDir = "ASC", string filter = null)
{
String query = #"
SELECT Id
,CreatedBy
,CreatedOn
,ModifiedBy
,ModifiedOn
,ContactId
,EntityName
,EntityId
,ActivityType
,ActivityStatus
,DueDate
,ActualEndDate
,MasqueradeOn
,MasqueradeBy
FROM UserActivity
-- ORDER BY CreatedOn DESC
-- OFFSET (#PageNumber -1) * 30 ROWS
-- FETCH NEXT 30 ROWS ONLY
";
//string countQuery = #""
List<UserActivityModels> userActivity = null;
using (IDbConnection db = new MySqlConnection(ConfigurationManager.ConnectionStrings["CRMPORTALSQLCONN"].ConnectionString))
{
userActivity = (List<UserActivityModels>)db.Query<UserActivityModels>(query, new
{
#PageNumber = page,
});
/*ViewData["TotalCount"] = (int)db.ExecuteScalar(countQuery, new
{
#PageNumber = page,
#Id = string.IsNullOrEmpty(filter) ? null : filter
});
*/
ViewData["PageSize"] = 30;
ViewData["Filter"] = filter;
}
if (userActivity != null)
{
return RedirectToAction(returnUrl);
}
return View(userActivity);
}
}
Really appreciate if there anyone who know something about this problem. Thanks
if (userActivity != null)
{
return RedirectToAction(returnUrl);
}
If the returnUrl points to the same action ("UserActivity/Index") it will create infinite redirect loop. If you want to redirect request to different action make sure you pass correct name.
You have a loop back situation. This is similar to endless while loop. To fix it change your code redirection implementation to redirect to an action method. Notice how I have changed the implementation below. This will fix the issue "localhost redirected you too many times". You can improve on it to support passing in parameters, etc suitable for your situation. Also take a look at RedirectToAction with support for additional parameters, if you want to pass parameters to the action method, this link will be useful.
public class UserActivityController : BaseController
{
//GET /UserActivity/Index
public ActionResult Index(int page = 1, string sort = "Id", string sortDir = "ASC", string filter = null)
{
// Your other implementation here. I have removed it for brevity.
if (userActivity != null)
{
return RedirectToAction("Index");
}
return View(userActivity);
}
public ActionResult Index()
{
return View();
}
}
I don't know what is the value of redirectUrl but I suppose it to be null. I also suppose that your userActivity is not null. So return RedirectToAction(returnUrl); gets called.
When you call RedirectToAction(null) you actually redirect to the same action and everything repeats again.
I also am wondering why would you need to return View(userActivity); when your userActivity is null. I suppose you have a logical error.
I have a method which should create a sub-graph defined this way:
#Transactional
public Post createAndLink(Appuser appuser, Post post, String linkTo) {
Post savedPost = null;
if(post != null && appuser != null){
post.setCreatedBy(appuser);
if(post.getId() == null && post.getId() == ""){
post.setId("IND"+GenerateUUID.getUUID());
}
System.out.println(">>> Id created : "+post.getId());
//Date check
String d = post.getDate();
if(d != null && d.length() == 11 && ConversionUtils.isNumeric(d.substring(0, 4))
&& ConversionUtils.isNumeric(d.substring(5, 7)) && ConversionUtils.isNumeric(d.substring(8, 10))){
if(!ConversionUtils.isPastDate(d)){
System.out.println("Cannot save post with date after today");
return null;
}
}
System.out.println(">>> Date created : "+post.getDate());
//People check
Set<People> people = new HashSet<People>();
if(post.getPeople() != null){
for(People p : post.getPeople()){
People pFromDb = peopleService.findById(p.getId());
people.add(pFromDb != null ? pFromDb : new People("PPL"+GenerateUUID.getUUID(), p.getName()));
}
post.setPeople(people);
}
System.out.println(">>> People created : "+post.getPeople());
//Place check
if(post.getPlace() != null){
Place pFromDb = placeService.findById(post.getPlace().getId());
post.setPlace(pFromDb != null ? pFromDb : new Place(post.getPlace().getId()));
}
System.out.println(">>> Place created : "+post.getPlace());
System.out.println("Post checking OK.");
savedPost = repository.findById(linkTo);
if(savedPost != null){
Set<Post> linked = new HashSet<Post>();
linked.add(savedPost);
post.setLinkedPosts(linked);
}
template.save(post);
System.out.println("=====> [saveWithUser]: Saved OK!");
}
return savedPost;
}
When I call this method within a loop, sometimes it gets stuck (in one of the iterations) in the execution of template.save(post).
The same behaviour is observed when I call this method unitarily from a GUI.
PS: The findBy methods are not transactional.
I'm stuck on it since 2 weeks and I can't find a way to solve it :/
Thanks for any feedback.
Edit 1:
Logs produced by the method:
>>> Id created : IND6f770750-7834-40ae-a07e-fc81bbb3c657
>>> Date created : 2009Y09M20D
>>> People created : [People [id=PPLaf830449-b15c-4c71-b706-abd11492b825, name=Mary], People [id=PPLdf53d2c7-06b1-49c8-9b69-3b765d9b2ee6, name=Laptop]]
>>> Place created : Place [id=2918548, name=null]
Post checking OK.
PS: The iteration before the blocked one, it shows a normal log execution but nothing created in the DB
Edit 2:
And sometimes I get this error (always during the 2nd iteration while 1st shows normal logs but writes nothing on DB):
javax.transaction.RollbackException: Tx status is: STATUS_MARKED_ROLLBACK
I think I found the problem (but not yet the solution)
I removed all #Transactional annotations from my service methods (controllers and repositories are not marked as Transactional).
In the method createAndLink described in the main post I added transaction this way :
if(post != null && appuser != null){
Transaction tx = template.getGraphDatabaseService().beginTx();
//I kept the same code...
//...
tx.success();
tx.close();
}
Now, when I call this method from a controller A, the tx is of type Placebo. When I call it from a controller B, the tx type is a TopLevel.
I even made a test with calling the controller A method from the controller B (like in the example below) and it worked perfectly (with a TopLevel Tx). When I do the opposite way, the Tx is Placebo.
Controller A:
#RequestMapping(value="/newandlinksimilar/{linkedTo}", method=RequestMethod.POST)
public #ResponseBody boolean createAndLinkNewSimilar(#RequestBody Post post, #PathVariable String linkedTo){
Post created = null;
Authentication auth = SecurityContextHolder.getContext().getAuthentication();
if (post!= null && !(auth instanceof AnonymousAuthenticationToken)) {
AppuserDetails userDetails = (AppuserDetails)auth.getPrincipal();
Appuser currentUser = appuserService.findByLogin(userDetails.getUsername());
created = postService.createAndLinkSimilar(currentUser, post, linkedTo);
}
return created;
}
Controller B:
#autowired
private ControllerA controllerA;
#RequestMapping("/init")
public ModelAndView init(){
//I create a new Post object "post" with dummy data
controllerA.createAndLinkSimilar(post,"XXXXXX");
//Or postService.createAndLinkSimilar(appuser,post,"XXXXXX");
return new ModelAndView("home");
}
Both tests are made from a GUI ajax call to the controller method.
I can't understand when and how Spring choose the type of the transaction?!
Lets say we have a 'Client' object:
(am just mentioning the attributes and the equals method alone of the 'Client' object below!!)
public class Client {
private Long clientId;
private String clientName;
private Integer status;
//getters and setters for above attributes
.....
...
//hashCode method
....
..
public boolean equals(Object obj) {
if (this == obj)
return true;
if (obj == null)
return false;
if (getClass() != obj.getClass())
return false;
Client other = (Client) obj;
if (clientId == null) {
if (other.clientId != null)
return false;
} else if (!clientId.equals(other.clientId))
return false;
if (clientName == null) {
if (other.clientName != null)
return false;
} else if (!clientName.equals(other.clientName))
return false;
if (status == null) {
if (other.status != null)
return false;
} else if (!status.equals(other.status))
return false;
return true;
}
}
From the above equals method itz clear that 'two' client objects are said to be equal if all the attributes of the two objects are identical.
Now assume a scenario where I need to compare two collections(named say incomingClients and existingClients) of Client objects.
The first collection(Collection incomingClients) was generated after reading the 'client' data from a csv/xls file.
The second collection(Collection existingClients) contains, all the existing clients currently in the system.
I can do the following code (using apache CollectionUtils)to get the 'common' clients.
Collection<Client> commonClients = (Collection<Client>)CollectionUtils.intersection(incomingClients,existingClients);
Now with the below code I can remove these commonClients from both the collections.
incomingClients.removeAll(commonClients);
existingClients.removeAll(commonClients);
The intention of removing the 'common clients objects' was that, we dont need to do 'any processing' for these records,
as we are really not at all interested in those records.
Now how can I figure out which are the entirely 'new clients' in the 'Collection incomingClients' collection?
(When I say 'new' it means a client having a new 'clientId' which doesnt exist in the 'Collection existingClients')
Also, how can I figure out which are the clients which needs 'modification'
(When I say 'modification' it means that the 'Collection incomingClients' and Collection existingClients'
have the same clientId, but, say, different 'clientName')
I know that we can do the normal 'for' loop('check below') to figure out the 'new'/'modification needed' clients.
But I thought of writing 'something new', whether we can achieve this using some classes/function in the 'Apache CollectionUtils' package.
Collection<Client> newClients = new ArrayList<Client>();
Collection<Client> toBeModifiedClients = new ArrayList<Client>();
boolean foundClient = false;
Client client = null;
for(Client incomingClient :incomingClients){
foundClient = false;
for(Client existingClient : existingClients){
if(existingClient.getClientId().equals(incomingClient.getClientId())){
client = existingClient;
foundClient = true;
break;
}
}
if(foundClient){
toBeModifiedClients.add(client);
}else{
//not found in existing. so this is completely new
newClients.add(incomingClient);
}
}
Am I 'complicating' a simple stuff??
Any thoughts??
First, yes, you are complicating "simple stuff". Your entire question could be summarized as follows:
Given collections A and B, how can I get the following using CollectionUtils:
A-B, using a particular function that determines equality
A∩B, using a particular function that determines equality
So, yes. CollectionUtils has what you need. Look at CollectionUtils.select().
I 've built an ASP.NET website using EF. I created a DataContext class which implements the singleton pattern. My DAO classes (singletons too) instanciate this datacontext and store it in a property. They use it in order to query the SQLServer DataBase. This worked ok for 3 months but I suddenly got exception messages like :"Connection must be valid and open / connection already open". It seemed that datacontext was not disposed. The only change, according to me, was the data size and number of users increasing.
I then found multiple posts saying that singleton was a bad idea foe datacontext, so I tried to instanciate datacontext in a using statement in every request and that resolved the problem, except for update queries which had no effects in database. I had to attach the db object to the context and then set its EntityState to "modified" to have my SaveChanges work.
Like this :
public bool DoucheXpsu(as_headers session) {
using (MyDBEntities MyContext = new MyDBEntities()) {
try {
as_status status = GetStatus(session);
if (status != null) {
if (status.mainstatusvalue == 300) {
status.DateDoucheXpsu = DateTime.Now;
status.DoucheXpsu = 1;
MyContext.as_status.Attach(status);
MyContext.ObjectStateManager.ChangeObjectState(status, EntityState.Modified);
MyContext.SaveChanges();
return true;
} else {
return false;
}
} else {
return false;
}
} catch (OptimisticConcurrencyException) {
return false;
} catch (Exception) {
return false;
}
}
}
The problem is that it actually didn't work for ONE method (which has nothing different from the other update method) !
The exception occured as I tried to attach the object : "The object cannot be attached because it is already in the object context. An object can only be reattached when it is in an unchanged state. " So I had to comment the attach and ChangeObjectState methods to have it work as expected :
public bool SetSessionToDelete(string numSession) {
using (MyDBEntities MyContext = new MyDBEntities()) {
try {
view_headerStatus view = (from v in MyContext.view_headerStatus
where v.CodeSession == numSession
where v.lastinserted == 1
select v).First();
if (view != null) {
as_status status = (from s in MyContext.as_status
where s.jobclsid == view.jobclsid
where s.lastinserted == 1
select s).First();
if (status != null) {
status.DeleteSession = 1;
//MyContext.as_status.Attach(status);
//MyContext.ObjectStateManager.ChangeObjectState(status, EntityState.Modified);
MyContext.SaveChanges();
return true;
} else {
return false;
}
} else {
return false;
}
} catch (OptimisticConcurrencyException) {
return false;
} catch (Exception) {
return false;
}
}
}
The question is WHY should this one behave differently ???
I've read many posts about EF and dataContext but I feel I'm missing something. I would be glad if anyone can help.
Thanks.
In your first example, this line here:
as_status status = GetStatus(session);
I would assume this populates using a DIFFERENT context, and when it leaves the GetStatus() method the context it used to load is disposed. That is why your subsequent Attach() works. However in your second example you do not need to attach because it was loaded using the current (connected) context.
To solve you may want to either pass the context to your methods like GetStatus() resulting in no need to reattach. I don't typically reattach unless I am resurrecting an object over the wire or from a file.