Calling Service in component

A few follow-up questions:

• What kind of error?.
• I believe you have implementation class as well. Have you verified the annotations of implementation class?. A small code snippet could help us.

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Jitendra

Hi Jitendra,

Please find attached  Implementation class, and I am fetching the jcr node properties in json format , I am using service url for hitting the page,like:" http://localhost:4502/api/contentservice?pagetype=mspot&path=/content/pagename" and I am getting the json data correctly.

Now I need to call this code from component and display the json data in html format on browser.For this , I have created a component and I am trying to call the data in component like dis:

<%

com.abc.www.core.service.servlets.IContentService servicedata = sling.getService(com.abc.www.core.service.servlets.IContentService.class);

JSONObject finalJsonObjects = servicedata.getContent();

%>

I am not able to call the json object here.Please let me know the correct way to call the json data here.

This is my Implementation class: ContentService.java

Why dont you go for servlet approach instead of OSGI service

Same way you can hit your servlet with parameter and get the JSON reponse

we do have alot of articles implemented this approach

Here's one: http://adobeaemclub.com/news-component-in-aem-using-guardian-news-api/

Make sure :

1. your service is registered in OSGI console

2. bundle is active

3. are you seeing any error like  "only type can be imported resolves to a package" in error.log

Is this your thread :

http://help-forums.adobe.com/content/adobeforums/en/experience-manager-forum/adobe-experience-manager.topic.html/forum__5cre-i_have_createdinter.html 

You are calling it the correct way - sling.getService().

If that is not found (and bunlde is active)- you may have a package conflict. 

If you have a lot of services in the same package - i find AEM sometimes has issues. Try placing your service in a new package for testing purposes - ie - foo.mypackage. 

Let us know what happens.

Hi Praveen,

1. service is registered in OSGI console

2. bundle is active

3. I am getting error : 

"Only a type can be imported" and 

"The method getContent(String) in the type IContentService is not applicable for the arguments ().."

: please check the way to call the jsonobject , am I doing correct or not:

<%
com.abc.www.core.service.servlets.IContentService servicedata = sling.getService(com.abc.www.core.service.servlets.IContentService.class);

JSONObject finalJsonObjects = servicedata.getContent();

%>

:- thread is not mine but this my friend thread , and this thread is also for the same problem

As i stated - try to place service in new package and try again. Sometimes package conflicts occur. 

However - your code is correct in terms of calling a service. I think its a package issue. I have seen that before. 

Here is a community article that may help what is going on: 

http://www.wemblog.com/2013/05/how-to-perform-system-clean-up-in-adobe.html

I suspect that your project has issues as described in the article. 

To see if this is an issue- try installing your project on a fresh instance of AEM. 

Hi,

I have created new new package in new AEM instance , I have tested ,

upto calling service nothing is wrong

com.abc.www.core.service.servlets.IContentService servicedata = sling.getService(com.abc.www.core.service.servlets.IContentService.class);

(I am getting error when I am adding " JSONObject finalJsonObjects = servicedata.getContent(); " 

:I have tested with passing parameter also but getting the error:"

"Only a type can be imported" and 

"The method getContent(String) in the type IContentService is not applicable for the arguments ().."

:Return type in my service class is JSONObject and problem is only with my way to call the jsonobject. with this line: "JSONObject finalJsonObjects = servicedata.getContent();"

Please let me know how can I call JSONObject in my component jsp.

Regards,

%>