Develop Reference

Cross platform (iOS-Android) xmpp request

I am creating one chatting application which will work on both iOS and Android platform. Sometimes 'both' subscription is not received at both end. Can anyone tell me what can be the possible issue?
===================== For iOS =====================
Sending request,
XMPPJID *XMPPJIDObj=[XMPPJID jidWithString:aStrOtherJabberId];
[appDelegateObj.xmppRoster addUser:XMPPJIDObj withNickname:nil];
Accepting request,
[appDelegateObj.xmppRoster acceptPresenceSubscriptionRequestFrom:aReceiverJID andAddToRoster:TRUE];
Removing user,
[appDelegateObj.xmppRoster removeUser:[XMPPJID jidWithString:aPresenceObj.userJabberID]];
===================== For Android =====================
Sending request,
Roster.setDefaultSubscriptionMode(SubscriptionMode.manual);
myApp.getXmppConnection().getRoster().createEntry(visitorJabberId, visitorUserName, null);
Accepting request,
final Presence presence1 = new Presence(Type.subscribed);
presence1.setFrom(myApp.getUserJabberId());
presence1.setType(Type.subscribed);
presence1.setTo(visitorJabberId);
myApp.getXmppConnection().sendPacket(presence1);
myApp.getXmppConnection().getRoster().createEntry(visitorJabberId, visitorUserName, null);
Removing user,
final RosterPacket rosterPacket = new RosterPacket();
rosterPacket.setType(IQ.Type.SET);
final RosterPacket.Item item = new RosterPacket.Item(visitorJabberId, null);
item.setItemType(RosterPacket.ItemType.remove);
rosterPacket.addRosterItem(item);
myApp.getXmppConnection().sendPacket(rosterPacket);

Hi Leena for the iOS we have used save thing but I think you have forgot some thing. The actual flow is call add user method of roster class then call subscribe method with subscription value YES and finally send presence tag with subscribe type to the serve. Following are the code here I used XMPPSharedPreference singleton class rather than appdelegate. Hope this will work for you...
XMPPJID *newBuddy = [XMPPJID jidWithString:JIDString];
[[XMPPSharedPreference sharedPreferences].xmppRoster addUser:newBuddy withNickname:#"nicknameValue"];
[[XMPPSharedPreference sharedPreferences].xmppRoster acceptPresenceSubscriptionRequestFrom:newBuddy andAddToRoster:YES];
NSXMLElement *presence = [NSXMLElement elementWithName:#"presence"];
[presence addAttributeWithName:#"to" stringValue:JIDString];
[presence addAttributeWithName:#"type" stringValue:#"subscribe"];
[[self xmppStream] sendElement:presence];

When you add a user to your roster you have to make sure you also subscribe to the friend's presence. That completes the cycle.
So, for iOS for example, you're adding a friend to roster like this:
[appDelegateObj.xmppRoster addUser:XMPPJIDObj withNickname:nil];
But you need to do use this instead:
- (void)addUser:(XMPPJID *)jid withNickname:(NSString *)optionalName groups:(NSArray *)groups subscribeToPresence:(BOOL)subscribe
and make sure you set subscribe to YES
Or, you could keep the code you have but manually subscribe to the user's presence by doing this:
[appDelegateObj.xmppRoster subscribePresenceToUser:XMPPJIDObj]
Let me know how that works out for you.

Android Jwebsocket custom protocol

I am opening a connection setting up a custom protocol like this:
WebSocketSubProtocol d = new WebSocketSubProtocol("MyCustomProto",WebSocketEncoding.TEXT);
mJWC.addSubProtocol(d);
mJWC.open(mURL);
But... Server side, I receive tis in the protocol string
"org.jwebsocket.json MyCustomProto"
How can I remove from the string the "org.jwebsocket.json" ?
I don't wanna do it server side...
Thanks!

I will answer to my own question.
By calling the "addSubProtocol" doesn't seem to be the right solution for couple of reasons:
if you call those 3 lines of code multiple time (if the first time the connection failed for example..) well the the protocol string would be something like
"org.jwebsocket.json MyCustomProto MyCustomProto"
It just keep adding the protocol..
So I found a turn around. Now I don't use that "addSubProtocol" but instead I defined the protocol directly when I create the socket
mJWC = new BaseTokenClient("client||"+code+"||"+name,WebSocketEncoding.TEXT);
Voila.. Now no more "org.jwebsocket.json" anymore

Need to pass a variable to remote swf

I am working on a prototype Air for Android application that loads some remote swf files (all created and controlled by me) and I need to be able to pass a variable along to the remote SWF.
Here is a quick break down of how the process currently works:
The Android app, called Loader, is installed on the device.
Loader points to my server and finds Player.swf, which it loads into the main stage. Player.swf show a login screen.
When a user logs in correctly, Player.swf receives an XML response from an API with a list of remote SWF videos to display for the user. Player.swf loops through the XML list and plays each remote SWF, one after the other.
Now, so far, so good. The remote SWF videos load up and play perfectly. But I need to start picking up variables from Player.swf (pulled from the XML response) to use in the remote SWF (things like text strings, user ID's etc)
From all the searching I have done, I believe it is down to the Sandbox environment, as Loader is a compiled application and Player.swf + the remote SWF's are all coming off a server. However, now I am wondering, as Player.swf is the one that has the AS3 code to deal with the XML response, and that is located on the same server as the remote SWF's that are played (and therefore should be the same sandbox?)
I was able to pass a variable along using a URL parameter, but it only works locally and not when I use the Android application.
I found an old blog pot about Sandbox Bridges, but the example file download doesn't work anymore.
Can anyone point me in the right direction in using the parentSandboxBridge function/class to pass along a variable (all examples I have seen deal with passing functions and/or are coded for Flex)
I cannot post any code, as I simply have nothing to show for what I want to achieve (I'm totally stumped on this bit!)
EDIT: I managed to get parameters to pass along (even though it worked locally before, it didnt work with the Loader app > Remote Player > Remote SWF animation combo)
I had to set the application domain context inside Player.swf (seeing as it is on the same server as the remote swf animations, not sure why I needed to do this)
But oddly, I cannot use parent or root to pickup variables?

I've tested this on HTC Desire running android 2.2.2 and it works what I've put in comment thus the answer is as follows:)
your host needs to define similar:
var params:URLVariables = new URLVariables();
params["string"] = "ala ma kota";
params["number"] = 1979;
var request:URLRequest = new URLRequest();
request.data = params;
request.url = "urlVarsReader.swf";
var loader:Loader = new Loader();
loader.load(request);
addChild(loader);
then loaded content (here urlVarsReader.swf) can read them as follows:
var output:TextField = new TextField();
addChild(output);
output.border = true;
output.width = 320;
output.height = 240;
output.wordWrap = true;
output.multiline = true;
var p:Object = getParams(this.loaderInfo);
for (var name:String in p)
{
output.appendText(name + " = " + p[name] + "\n");
}
I have a wrapper method for reading params:
public function getParams(li:LoaderInfo):Object
{
try
{
var params:Object = li.parameters;
var pairs:Object = {};
var key:String;
for(key in params)
{
pairs[key] = String(params[key]);
}
}
catch(e:Error)
{
return {error:e.getStackTrace()};
}
return pairs;
}
best regards
EDIT:
This works only with local content fails with SecurytyError e.g. SecurityError: Error #2070: Security sandbox violation: caller http://example.com/urlVarsReader.swf?string=ala%20ma%20kota&number=1979 cannot access Stage owned by app:/loadwithparams.swf

getEntity call results in crash (using odata4j on a WCF service)

I am trying out odata4j in my android app to retrieve data from a DB that can be accessed from a WCF service.
ODataConsumer co = ODataConsumer.create("http://xxx.xx.xx.xxx:xxxx/Users");
for(OEntity user : co.getEntities("Users").execute())
{
// do stuff
}
However this crashes at the call to getEntities. I have tried a variety of other calls as well, such as
Enumerable<OEntity> eo = co.getEntities("Users").execute();
OEntity users = eo.elementAt(0);
However this also crashes at eo.elementAt(0).
The logcat doesn't tell me anything, and the callstack seems to be Suspended at ActivityThread.performLaunchActivity.
Entering "http://localhost:xxxx/Users" in my web browser on the other hand works as expected and returns the users in my DB in xml format.
Any ideas on how I can debug this?

To log all http requests/responses:
ODataConsumer.dump.all(true);
The uri passed to the consumer .create call should be the service root. e.g. .create("http://xxx.xx.xx.xxx:xxxx/"); Otherwise your code looks fine.
Note the Enumerable behaves like the .net type - enumeration is deferred until access. If you plan on indexing multiple times into the results, I'd suggest you call .toList() first.
Let me know what you find out.
Hope that helps,
- john

I guess the call should be:
ODataConsumer co = ODataConsumer.create("http://xxx.xx.xx.xxx:xxxx");
for(OEntity user : co.getEntities("Users").execute())
{
// do stuff
}
create defines service you want to connect but Users is the resource you want to query.

Can you try this way.
OEntity oEntity;
OQueryRequest<OEntity> oQueryRequest= oDataJerseyConsumer.getEntities(entityName);
List<OEntity> list= oQueryRequest.execute().toList();
for (OEntity o : list) {
List<OProperty<?>> props = o.getProperties();
for (OProperty<?> prop : props) {
System.out.println(prop.getValue().toString());
}
}

Generate errorhandler for XMLAplicationContext

I'm a flex developer and have a small problem.
I use XMLApllicationContext to load an XML file.
I load my context and then add the config location to it.
In this files I take care of creating an URL to connect to.So I made an eventlistner for my XMLApplicationContext with Event.COMPLETE so I know when he's done and he can connect.
No I'm a little bit dummytesting and if the user has given a wrong host and port the URL will not exist. So there will never be an Event.COMPLETE action.
For that I would love to know how I can solve this.
Now I have this code:
public function execute():*
{
m_context = new XMLApplicationContext("application-context.xml");
m_context.addConfigLocation("application-context-services.xml");
m_context.addEventListener(Event.COMPLETE, onComplete);
m_context.addEventListener(......);//need to know what has to come between the brackets
m_context.load();
ServiceLocator.getInstance().context = m_context;
}
I allready tried some things but haven't found a solution yet.
Thank you in advance.
Kind regards,
Thibault Heylen

Did you try the IOErrorEvent?
If that doesn't work for you, you could try creating a file reference and check if it exists ...
var f:File = new File("application-context.xml");
if (f.exists) {
//...
}
Im not quite sure, but if this is a local file you maybe have to add "app:/path/to/file/" in front of your url/file name