How to access sling request object in OSGI Service from an scheduler?

[vijayselvas1]

Hello , 

I have a scheduler that will triggered the service and I have my whole logic there. But, I need to get the request object in the service, is there a way to achieve it?

Note: I shouldn't use servlet to pass the request object as a parameter. 

please your suggestions.

@Anny0505 

Thanks,
Vijay

[h_kataria]

If you could provide some more details, that would be helpful.
But you would probably have to rethink this a little. A scheduler is something which is designed to run at specific intervals. And request/response process is happening in real time. So, accessing some request object in the scheduler will only make sense if you are trying to get some particular information from a particular request itself, in which case scheduler is probably not the right fit for your use case. 
Since you already have a service, you can think if leveraging Sling model or servlets can fullfill your requirements.
Hope this helps.

[vijayselvas1]

Thanks your your suggestion. But my requirement is,

 I need to create/update a xml file by fetching the data from another external end point and that should happen once in a day.

 so, to call the endpoint I need a request object.

I know the ideal way to have the servlet, but I don't want to go with the servlet as anyone can hit it by path.Also, I don't think that i can use the model here as we can't call the model from an scheduler, so I decided to go with service.

Is there any other way to achieve the requirement? Thanks.

[h_kataria]

You can use apache httpclient in that case if you are just looking to make the external api call

HttpGet httpGet = new HttpGet(apiUrl);


		try (CloseableHttpClient httpClient = HttpClients.createDefault()) {
			CloseableHttpResponse response = httpClient.execute(httpGet);
			String responseStr = EntityUtils.toString(response.getEntity());
			
			return responseStr;
		}

You can find more samples here https://sourcedcode.com/blog/aem/handling-http-requests-httpclient-in-aem 

[arunpatidar · Accepted solution]

Hi @vijayselvas1 

I suggest reviewing the entire design. Using a request object for a scheduler or events doesn't make sense since these are generally not triggered by any request.

However, you can create a HttpServletRequest orMockSlingHttpServletRequest in your OSGi service to simulate a request object.

You might find this example helpful: ServletModel example.

We faced a similar use case where a request object was needed when running a scheduler due to a third-party method requirement. We used `MockSlingHttpServletRequest` to handle this.

[SimoneBo2]

Probably what you need is a system user to be able to write your xml into repository?

As @arunpatidar said, it does not make sense to have a request when running a scheduler.

[Jörg_Hoh]

A scheduled job runs outside of a request context, for that reason there is no SlingHttpServletRequest available.

[kautuk_sahni]

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