can't fetch category attribute info

[ujjval090683]

Hi,
I am trying to fetch livelink category attribute information using lapiDocuments.FetchCategoryVersion(CatID, CatVer);

I am able to fetch using this in my Livelink server, but when I run into other livelink server which is also 9.5 only I am getting below error:

Error in retriving Attribute Information
com.opentext.api.LLIllegalOperationException: get(name) not implemented for this datatype

This is comming in log file. Below comes on console:

java.io.UnsupportedEncodingException:
at sun.io.Converters.getConverterClass(Unknown Source)
at sun.io.Converters.newConverter(Unknown Source)
at sun.io.CharToByteConverter.getConverter(Unknown Source)
at java.lang.StringCoding.encode(Unknown Source)
at java.lang.String.getBytes(Unknown Source)
at com.opentext.api.LLOutputStream.writeString(Unknown Source)
at com.opentext.api.LLString.format(Unknown Source)
at com.opentext.api.LLValue.format(Unknown Source)
at com.opentext.api.LLOutputStream.writeValue(Unknown Source)
at com.opentext.api.LLAssoc.format(Unknown Source)
at com.opentext.api.LLValue.format(Unknown Source)
at com.opentext.api.LLOutputStream.writeValue(Unknown Source)
at com.opentext.api.LLConnect.executeTraditional(Unknown Source)
at com.opentext.api.LLConnect.execute(Unknown Source)
at com.opentext.api.LAPI_DOCUMENTS.FetchCategoryVersion(Unknown Source)
at LLUtility.getCatDetails(LLUtility.java:318)
at LLUtility.llUtility(LLUtility.java:258)
at LLUtility.main(LLUtility.java:301)


What can be done? It is working fine in my Server. No idea why this is happening.

Fr UnsupportedEncodingException I google and it says some Local is not set to English or characterset.jar is not present, but both are correct. Jar is there and also Local is engish.So I guess tghe first error which I am getting "get(name) is the cause.

Anybody can help me in this?

 

[ggriffit]

can you provide some code ?

Greg Griffiths
Livelink Certified Developer & ECM Global Star Champion 2005 & 2006

http://www.greggriffiths.org/livelink/

 

[ujjval090683]

I Used Below code:

LAPI_DOCUMENTS lapiDocuments = new LAPI_DOCUMENTS(llSession);

LLValue attrCatID = new LLValue().setAssoc();
attrCatID.add("ID",CatID);
attrCatID.add("Version",0); ---- Shoudl I add this line?
LLValue attrCatVer = new LLValue().setAssoc();

lapiDocuments.FetchCategoryVersion(attrCatID, attrCatVer);

I ran above code with version value passed and witout pass. But it is not working.

 

[appnair]

JUST SOME GENERAL GUIDELINES

get(Name) is because you are not trapping session statuses in your code.
for eg in this snippet of code I am making a LAPI call

	LLValue libData = ( new LLValue() ).setAssoc();		// declare an assoc to hold the enterprise volume info

		LAPI_DOCUMENTS documents = new LAPI_DOCUMENTS( session ); 	// create a new Library object
		
		if (documents.AccessEnterpriseWS( libData ) == 0){ 		// get the Enterprise volume item
			volId = libData.toInteger("VolumeID");			// grab and convert the volume id
			objId = libData.toInteger("ID");				// grab and convert the object id
			status = crawl(volId, objId, "", documents);		// call the crawl routine to crawl the tree
		}

When your client program runs it will call the LAPI -Function AccessEnterpriseWS.If it is ZERO then the output variable 'libData'
will contain parsable info which is happening at client side.

Now if I did not put that call check to see if I suceeded and tried to parse libdata I would get similar errosr like you have.

If the call does not succeed and the return value is NOT ZERO then lapi will send a positive number and some user freindly messages
in session which you can understand.

So one can write this like this

	LLValue libData = ( new LLValue() ).setAssoc();		// declare an assoc to hold the enterprise volume info

		LAPI_DOCUMENTS documents = new LAPI_DOCUMENTS( session ); 	// create a new Library object
		
		if (documents.AccessEnterpriseWS( libData ) == 0){ 		// get the Enterprise volume item
			volId = libData.toInteger("VolumeID");			// grab and convert the volume id
			objId = libData.toInteger("ID");			// grab and convert the object id
			status = crawl(volId, objId, "", documents);		// call the crawl routine to crawl the tree
		}
		else
		//LAPI CALL FAILED LET US NOT PARSE ANY OUTPUT THAT WE WERE EXPECTING and print session status
		{
		GetErrors(session);
		}
		
		
		
		
		//This function outputs any errors from the session
			public static void GetErrors(LLSession session)
			{
				System.out.println("Status Code: " + session.getStatus());
				System.out.println("Api Error: " + session.getApiError());
				System.out.println("Error Message: " + session.getErrMsg());
				System.out.println("Status Message: " + session.getStatusMessage());
	}

In very rare circumstances livelink may crash or not send something tou your code.That can only be figured out by looking at livelink
server side logs.DO NOT TRY TO PARSE A LAPI OUTPUT VARIABLE WITHOUT CHECKING WHETHER YOUR LAPI CALL FIRST SUCEEDED OR NOT

Well, if I called the wrong number, why did you answer the phone?
James Thurber, New Yorker cartoon caption, June 5, 1937
Certified OT Developer,Livelink ECM Champion 2008,Livelink ECM Champion 2010

http://www.tek-tips.com/faqs.cfm?fid=2884

http://www.linkedin.com/in/appunair