I'm using new WebRTC stats API with RTCStatsCollectorCallback object that is called when stats report is generated. I'm invoke GetStats() and then I can see that OnStatsDelivered is called with a RTCStatsReport that contains just one (empty) item in stats_ member. In GetStats() call I pass my own implementation of RTCStatsCollectorCallback that implements webrtc::RTCStatsCollectorCallback interface. My question is, is neccessary some setup or constraints in PeerConnection in order to get RTCStatsReport with the metrics? I mean, to get, for example kStatsValueNameRtt stat, I need to set something in PeerConnection. Note that I'm using C++ native API in branch 55. Is this new stats API full implemented?
I've used the older GetStats method with success:
bool GetStats(StatsObserver* observer,
webrtc::MediaStreamTrackInterface* track,
StatsOutputLevel level) override;
It could be your problem was due to trying to use an in-progress API (webrtc framework is a bit wild west). Currently, peerconnectiointernface.h says the following:
// Gets stats using the new stats collection API, see webrtc/api/stats/. These
// will replace old stats collection API when the new API has matured enough.
// TODO(hbos): Default implementation that does nothing only exists as to not
// break third party projects. As soon as they have been updated this should
// be changed to "= 0;".
virtual void GetStats(RTCStatsCollectorCallback* callback) {}
As I'm writing this response, your question is 6 months old, so it's possible the this new API is now working (though the comment above suggests otherwise).
Related
I have recently used Java Spring to create REST services. In it, there were annotations for binding each specific function to a different REST query. Lets not go too technical here, as a psuedo, it was like this:
/** list records */
#bind("/list", WebMethod.GET)
List<Record> getRecords()
{
}
/** get record */
#bind("/record", WebMethod.GET)
Record getRecord()
{
}
/** add record */
#bind("/record", WebMethod.POST)
void addRecord()
{
}
Now I am given a tesk to perform a REST with Casablanca SDK in C++, but in every tutorial I checked covers a single GET or POST request. Is it possible to bind multpile requests to custom targets similar to Spring in Casablanca SDK?
You can make a single get function where you capture all get requests, then just get the path from the query and use a switch to call different functions to process the request for that path.
Forgive me if this is a dumb question, I unfortunately have an assignment due! I am running apache axis under tomcat and need to deploy a simple web service class, see below.
I installed the counter file below as "MyCounter.jws" in the /tomcat/webapps/axis/ folder. Tomcat finds it and makes a corresponding MyCounter.xml. I use WSDL2Java on the XML file and client calls seem to work, but internal state is not saved:
Every time I call MyCounter.call from the client side, the return value is always 1. It seems the constructor is always called before the method call. How can I make it so the mycounter integer persists across requests?
public class MyCounter
{
int mycounter;
public MyCounter()
{
mycounter = 0;
}
public int call()
{
mycounter++;
return mycounter;
}
}
I think persisting is maybe the wrong word, I think what you mean is that the Java Class is not instantiated every time you call the service.
See: https://axis.apache.org/axis/java/user-guide.html#Scoped_Services
So you would need to change the Service definition yo achieve this.
I don't think that with the JWS files you will be able to configure the session scope. As the docs say:
https://axis.apache.org/axis/java/user-guide.html#JWS_Java_Web_Service_Files_-_Instant_Deployment
Quote:
Important: JWS web services are intended for simple web services. You
cannot use packages in the pages, and as the code is compiled at run
time you can not find out about errors until after deployment.
Production quality web services should use Java classes with custom
deployment.
So if you want to use such features you should consider using some of the other ways Axis offers to setup a WebService.
Also I would strongly recommend using Axis2 instead of Axis1:
http://axis.apache.org/axis2/java/core/
Axis1 can be quite complicated with the WSDD files to setup. Apart from Axis1 no more actively developed/maintained.
I'm new to OTRS (3.2) and also new to PERL but I have been given the task of setting up OTRS so that it will make a call to our remote webservice so a record can be created on our end when a ticket is set as "Closed".
I set up various dynamic fields so the customer service rep can fill in additional data that will be passed into the webservice call along with ticket details.
I couldn't get the webservice call to trigger when the ticket was "Closed" but I did get it to trigger when the "priority" was changed so I'm just using that now to test the webservice.
I'm just using the Test.pm and TestSimple.pm files that were included with OTRS.
When I look at the Debugger for the Webserice, I can see that the calls were being made:
$VAR1 = {
'TicketID' => '6'
};
My webservice currently just has one method "create" which just returns true for testing.
however I get the following from the Test.pm
"Got no TicketNumber (2014-09-02 09:20:42, error)"
and the following from the TestSimple.pm
"Error in SOAP call: 404 Not Found at /TARGET/SHARE/var/otrs/Kernel/GenericInterface/Transport/HTTP/SOAP.pm line 578 (2014-09-02 09:20:43, error)
I've spent countless hours on Google but couldn't find anything on this. All I could find is code for the Test.pm and TestSimple.pm but nothing really helpful to help me create a custom invoker for my needs and configure the webservice in OTRS to get it to work.
Does anyone have any sample invokers that I can look at to see how to set it up?
Basically I need to pass the ticket information along with my custom dynamic fields to my webservice. From there I can create the record on my end and do whatever processing.
I'm not sure how to setup the Invoker to pass the necessary ticket fields and dynamic fields and how to make it call a specific method in my remote webservice.
I guess getting the Test.pm and TestSimple.pm to work is the first step then I can modify those for my needs. I have not used PERL at all so any help is greatly appreciated.
I'm also struggling with similar set of requirements too. I've also never programmed in PERL, but I can tell you at least that the "Got no TicketNumber" in the Test.pm is right from the PrepareRequest method, there you can see this block of code:
# we need a TicketNumber
if ( !IsStringWithData( $Param{Data}->{TicketNumber} ) ) {
return $Self->{DebuggerObject}->Error( Summary => 'Got no TicketNumber' );
}
You should change all references to TicketNumber to TicketID, or remove the validation whatsoever (also there is mapping to ReturnedData variable).
Invoking specific methods on your WS interface is quite simple (but poorly documented). The Invoker name that you specify in the "OTRS as requester" section of web service configuration corresponds to the WS method that will be called. So if you have WS interface with a method called "create" just name the Invoker "create" too.
As far as the gathering of dynamic field goes, can't help you on that one yet, sorry.
Cheers
I need to do a callout to webservice from my ApexController class. To do this, I have an asycn method with attribute #future (callout=true). The webservice call needs to refeence an object that gets populated in save call from VF page.
Since, static (future) calls does not all objects to be passed in as method argument, I was planning to add the data in a static Map and access that in my static method to do a webservice call out. However, the static Map object is getting re-initalized and is null in the static method.
I will really appreciate if anyone can give me some pointeres on how to address this issue.
Thanks!
Here is the code snipped:
private static Map<String, WidgetModels.LeadInformation> leadsMap;
....
......
public PageReference save() {
if(leadsMap == null){
leadsMap = new Map<String, WidgetModels.LeadInformation>();
}
leadsMap.put(guid,widgetLead);
}
//make async call to Widegt Webservice
saveWidgetCallInformation(guid)
//async call to widge webserivce
#future (callout=true)
public static void saveWidgetCallInformation(String guid) {
WidgetModels.LeadInformation cachedLeadInfo =
(WidgetModels.LeadInformation)leadsMap.get(guid);
.....
//call websevice
}
#future is totally separate execution context. It won't have access to any history of how it was called (meaning all static variables are reset, you start with fresh governor limits etc. Like a new action initiated by the user).
The only thing it will "know" is the method parameters that were passed to it. And you can't pass whole objects, you need to pass primitives (Integer, String, DateTime etc) or collections of primitives (List, Set, Map).
If you can access all the info you need from the database - just pass a List<Id> for example and query it.
If you can't - you can cheat by serializing your objects and passing them as List<String>. Check the documentation around JSON class or these 2 handy posts:
https://developer.salesforce.com/blogs/developer-relations/2013/06/passing-objects-to-future-annotated-methods.html
https://gist.github.com/kevinohara80/1790817
Side note - can you rethink your flow? If the starting point is Visualforce you can skip the #future step. Do the callout first and then the DML (if needed). That way the usual "you have uncommitted work pending" error won't be triggered. This thing is there not only to annoy developers ;) It's there to make you rethink your design. You're asking the application to have open transaction & lock on the table(s) for up to 2 minutes. And you're giving yourself extra work - will you rollback your changes correctly when the insert went OK but callout failed?
By reversing the order of operations (callout first, then the DML) you're making it simpler - there was no save attempt to DB so there's nothing to roll back if the save fails.
I am having problems with oauth. Let me start by saying that I have only been studying C++ for about a month. I am working on a Etrade API application. I have been struggling with this for a few weeks. Ok Etrade has provided the header, DLL and library files. I am having trouble just calling a simple function. Etrade list examples on how to call a Function for Java, and PHP but no C++. I just need a example for one function and I can pretty much go from there. here is a link to the API help
https://us.etrade.com/ctnt/dev-portal/getContent?contentUri=V0_Code-SDKGuides-VC
the arguments for the first function are
m_environment IN Optional. Possible values are SANDBOX (default) and LIVE.
m_strConsumerKey IN OAuth consumer key provided by E*TRADE
m_strConsumerSecret IN OAuth consumer secret provided by E*TRADE
m_strToken OUT Returned by the function if successful
m_strTokenSecret OUT Returned by the function if successful
m_strCallback IN Optional; default value is "oob"
Here is my code first function (oauth)
int main(int argc, char **argv)
{
}
bool COAuthSDK::GetRequestToken(CClientDetails &objClientDetails)
{
return GetRequestToken;
}
You're missing the point. ETrade provides you with COAuthSDK::GetRequestToken; You're supposed to call it, not re-implement it yourself. The m_ arguments are members of the CClientDetails object that you, as the client, have to provide.
Just a heads up. The Authorize URL in the docs(v0) is wrong! Doh! If you are having problems with that step, try the following URL.
Here is the correct URL: https://us.etrade.com/e/t/etws/authorize
Notice there is an additional 't' in the URL
BTW, I wrote a simple Node app called Trading Robo Monkey. If you have never used OAuth before, you can try to see if that was your problem by looking at the JS code
https://github.com/shikhirsingh/ETrade-API-Robo-Trading-Monkey-4-NodeJS