samilabed / cqels Goto Github PK

What steps will reproduce the problem?
1.
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What is the expected output? What do you see instead?


What version of the product are you using? On what operating system?


Please provide any additional information below.

Hi, i tried the example given in the wiki to initialise the CQELS engine on the 
your test data but i am getting the null point exception. I have attached the 
file for the testcase and the text stream.
Please let me know how to solve this issue. Thanks

I could not find the link to download the storm-deploy at the wiki tutorial for 
CQELSCloud: https://code.google.com/p/cqels/wiki/CQELSCloud

In your wiki you include a snippet of the TextStream class and then show some 
code how to instantiate the class and run the thread. Please could you send me 
an example class of each of these, which I can execute against your datasets 
downloaded form the wiki. This would realy help me in understanding how the 
sytem works. I was expecting to find the examples as part of your source code, 
but they are not included in the source files which I downloaded through svn.

I have actually built the example classes myself, but I do not think they are 
working as intended, I am getting too many runtime errors.

I would really appreciate any help with the source of the examples. 

New CQELS version need to support TUMBLING keyword.

Added static reasoning capability for CQELS

What steps will reproduce the problem?
1.
2.
3.

What is the expected output? What do you see instead?


What version of the product are you using? On what operating system?


Please provide any additional information below.

Static reasoning capability

Executing a CQELS query with a 'RANGE' pattern but without a corresponding 
'SLIDE' pattern causes a IllegalArgumentException as 
java.util.Timer.schedule(...) is called with a period = 0 which is not allowed. 
Adding a 'SLIDE' pattern resolves this problem, as it changed the period to > 0.

What steps will reproduce the problem?
1. Download and compile current trunk version from SVN
2. Execute CQELS query with 'RANGE' pattern but without 'SLIDE' pattern. For 
example modify the example query 'query1.cqels' by changing the line

STREAM <http://deri.org/streams/rfid> [NOW] 

to 

STREAM <http://deri.org/streams/rfid> [RANGE 1s] 

3. execute example code running modified query with 'Paul Erdoes' as AUTHORNAME.

The Jena libraries used in the project need to be updated, because it forbid 
the latest version of these libraries on the client side.

In example:
 - jena-arq 2.9.3 -> 2.11.1
 - jena-tdb 0.9.3 -> 1.0.1

As I see this require some changes in the code.

It makes sense to convert current project to an Maven project to properly 
maintain dependencies, publish artifacts on the Central Maven Repository and 
other stuff. Currently it's hard to use CQELS, because the all code and its 
dependencies are packaged in a single jar, that creates problems with 
dependency management.

What steps will reproduce the problem?
1.
2.
3.

What is the expected output? What do you see instead?
Ans: I need the query execution time, just like the results of "Using the CQELS 
engine", which returns a small query execution time. I need to vary the dataset 
and the query. I also need to run multiple query instances at a time.

What version of the product are you using? On what operating system?
Ans:It's version r204 under trunk in the svn

Please provide any additional information below.
Ans: My main goal is to measure the query execution time using customized 
datasets and multiple query instances. How can I do that? I prefer using the 
latest source code on svn, which I can customized parameters. Or it is fine if 
I can do that with the CQELS engine jar file.

I have also implemented a main class (attached) for executing the query engine 
from source code. But I don't know how to measure the query execution time.

Thanks a lot.