ApiRTC - Behaviour with meshModeEnabled and meshOnlyEnabled - webrtc

I would like to know what is the exact behaviour of the Apizee PaaS when the meshModeEnabled and meshOnlyEnabled parameters are set to true ?
The documentation describes the usefulness of these 2 parameters but does not explain the behaviour in the Apizee application.
If we set the meshModeEnabled parameter to true and set the meshOnlyEnabled parameter to true, then this will prohibit ApiRTC from redirecting traffic to the SFU (to maintain a true Peer-To-peer).
My question is: by setting the two parameters mentioned above to true, the traffic will be exclusively P2P, which means that it is no longer possible to use the conversation recording system and the media retrieval with the API (because no passage to SFU)?
Thank you in advance
I have already used the 2 parameters but without any information on their technical behaviour on the Apizee PaaS side

Answer for the ApiRTC lib release 4.7.8
If we set the meshModeEnabled parameter to true and set the
meshOnlyEnabled parameter to true, then this will prohibit ApiRTC from
redirecting traffic to the SFU (to maintain a true Peer-To-peer).
You re right
My question is: by setting the two parameters mentioned above to true,
the traffic will be exclusively P2P, which means that it is no longer
possible to use the conversation recording system and the media
retrieval with the API (because no passage to SFU)?
I confirm. The SFU is needed for any activity that needs to centralize all the streams (recording, bandwith optimisation,...)
Beware that ApiRTC has a mecanism to choose the best stream routes depending of the use and of the bandwith quality of participant.
If you enable mesh mode,the behavior of ApiRTC will be:
If < 5 participants AND session has not been in SFU mode before ==> roomMode = "mesh"
If >= 5 participant OR someone join the room in SIP OR recording OR someone hase a doggy upload link OR session has been in SFU mode before ==> roomMode = SFU
Here are the default values if you don't specify any:
meshModeEnabled : false ==> so by default it doesn't use the ApiRTC stream routing optimisation
meshOnlyEnabled : false
To get the current connection mode, you can use the apiCC.session.apiCCWebRTCClient.webRTCClient.MCUClient.sessionMCUs object in your browser console. (unsupported) watch for the roomModeChanged of the current Conversation to be fired when the mode changes from mesh to SFU.
The roomMode attribute will show
"mesh" => mesh mode
or will not be defined => SFU mode

Related

Two-way Apache Camel Routes - Infinite loop

I have 2 endpoints that I would like to establish routes between. Due to the nature of these endpoints (JMS topics), I would like the bridging to be bidirectional.
The underlying JmsComponent for the Tibco endpoint has the pubSubNoLocal parameter enabled which ensures that a consumer does not receive messages it has itself sent as per http://camel.apache.org/jms.html
pubSubNoLocal false
Specifies whether to inhibit the delivery of messages published by its own connection.
However this has no effect since the 2 routes create separate connections to the JMS topic my.topic.
As a result, the following will create an infinite loop.
As mentioned, I need the routes to operate in both directions for "seamless integration"
<c:route>
<c:from uri="tibco:topic:my.topic"/>
<c:to uri="solace-jms:topic:mytopic" />
</c:route>
<c:route>
<c:from uri="solace-jms:topic:mytopic"/>
<c:to uri="tibco:topic:my.topic" />
</c:route>
I suggest le consideration the concepts of message selectors and headers.
The way I see it, you do 2 things:
Add a "PRODUCER" header with your Server ID (however you define it)
All your listeners must be configured with a negative selector "NOT (PRODUCER='YOUR_ID')"
Done ?
(Of course, you could also use 2 topics... but I assume it is out of the question...)
You will need to add some indication in the message that it has been sent through either bridge. You could play with existing properties (redelivery ?) or better add a new one. For example set property bridged=true when it passes your bridge. Then inside your definition you can filter out each message already bridged.

omnet++ Inet - Simulating dynamic access point behaviour

I have to create a particular simulation for a college project. The simulation should feature several mobile nodes cyclically switch between 802.11 access point and station modes. While in station mode, nodes should read the SSIDs of access points around them, and then they should change their SSID in AP mode accordingly. There is no need for connections or data exchange between the nodes beside the SSID reading.
Now, I've been through Omnet/Inet tutorials/documentation (all two of them), and I feel pretty much stuck.
What I could use right now is someone confirming my understanding of the framework giving me some directions on how exactly I should proceed.
From what I understand is Inet does not implement any direct/easy way to do what I'm trying to do. Most examples have fixed connections declared in NED files and hosts with a fixed status (AP or STA) defined in the .ini file.
So my question is basically how do I do that: do I need to extend a module (say, wirelessHost), modifying its runtime behaviour, or should I implement a new application (like UDPApp) to have my node read other SSIDs and change his accordingly? And what is the best way to access an host's SSID?
You may utilize two radios for each mobile node e.g. **.mobilenode[*].numRadios = 2 (see also example in /inet/examples/wireless/multiradio/).
The first radio operates as AP **.mobilenode[*].wlan[0].mgmtType = "Ieee80211MgmtAPSimplified" which has to adapt its SSID.
The second radio serves as STA **.mobilenode[*].wlan[1].mgmtType = "Ieee80211MgmtSTA". Now, you have to sub-class Ieee80211AgentSTA which handles the SSID scanning procedure and has to change the first radio's SSID upon new SSID detection. Then you utilize the adopted sub-class within the simulation. Finally, active scanning has to be activated **.mobilenode[*].wlan[1].agent.activeScan = true.

Is it possible to allow Worklight users to use app before updating?

Let's say I push new code to the Worklight server for purposes of a Direct Update. Can I allow users to still use the application for a set amount time before they actually have to accept the update or is the application essentially unavailable to them until they download the new code?
If you are developing your application using Worklight 6.2, then you as a developer can take over the entire Direct Update flow and can essentially decide how to handle a received update from the server.
Note that by taking full control, you own the flow end-to-end; the default Worklight framework handling will not be available and the full responsibility is on the developer to ensure the validity of every step.
You can read more about customizing Direct Update, here:
Initial reading, starting slide #14: http://public.dhe.ibm.com/software/mobile-solutions/worklight/docs/v620/05_06_Using_Direct_Update_to_quickly_update_your_application.pdf
In depth reading: http://www-01.ibm.com/support/knowledgecenter/SSZH4A_6.2.0/com.ibm.worklight.dev.doc/dev/c_customizing_direct_update_ui_android_wp8_ios.html
In your scenario, I think you could probably go in a less extreme way and just do some tweaks before letting the Worklight framework handle the update from the server. Meaning, you could use the example provided in the training module (slide #18 from the PDF above), where you intercept the update:
wl_directUpdateChallengeHandler.handleDirectUpdate = function(directUpdateData,
directUpdateContext) {
... // display message or counter
}
And display a message and start a counter, and when time's up just directUpdateContext.start(); the update.

Worklight - Updatable static content

I have this requirement : My WL application have a set of static pages that might be updated any time. Originally the source of all static content is a desktop page that will be transformed by xsl to a mobile friendly content. The problem that I don't want to do that on each request (HA requirement).
I want to get some inspiration on how to architect that without using direct update mechanism (don't want the end user to get notified of these updates).
I should note that pages will change rarely every few month maybe.
I'm thinking about 2 ways of doing that :
1- Making the transformation on adapter side and rely on WL caching so that transformation is not made each time (does that exist ?). But how the adapter will get notified of page change and flush the cache ? Should I program some advanced java based adapter ? (Storing in the cache and having a kind of a job that scans every day for content changes ?)
2- Doing it mobile side but I don't know how to get notified of changes !
Is your only problem with Worklight's Direct Update that the user is being notified and is required to explicitly approve the transfer?
In this case why not use the option of Silent Direct Update?
The property you're looking for is updateSliently set to true in initOptions.js.
For this to work it is required, obviously, that connectOnStartup will be set to true as well.
perhaps what is doable is to use an adapter to fetch the HTML (or whatever it is) and save it to the device's local storage and then have the app display this content, this way you do not alter the app's web resources and not trigger Direct Update.

Check if one has already logged into Bloomberg (via API)

Is there a way to test if current user has been authenticated to BBG? I have my c# program which uses BBG API, and want to check if the user logged in the service before, either via API calls or the BBG Terminal. This check can then be used to distinguish whether the user's network is unavailable or simply he hasn't logged in yet.
Thanks!
There's a couple of ways to interpret your question, so I'll answer both... (I'm speaking from the perspective of using the Java API, but it should be pretty similar on C#.)
1. Can I tell whether the user connect to Bloomberg (i.e. are there network issues / are they are logged in)?
Yes - you can create a new Session, try to start it using .start(). If it fails or returns false, you cannot connect. If it starts, you can call .openService("//blp/apiauth"). Again, if it fails or returns false, you cannot connect.
If you cannot connect, you may or may not be able to determine why you cannot... Nevertheless, I would suggest registering a callback to the BLP API logging framework. In our code, we we-direct these to the logging framework we use throughout our code.
2. The user has created a Session (pre-cursor to a Service) - can I tell if the Session has been started?
Unfortunately - no. There is nothing in the API to allow you to determine the state of the Session. (I suppose you could try starting it, and if it starts it wasn't started, and if it fails, it was started - but that strikes me as an unhelpful or risk appraoch.)