Hi,

Sorry for the late answer.
We don't see any relation between the OSGI Dal and the CEP.
Maybe you could open another issue if you have more issues the CEP.

Regards,

Marc

Thanks.

How would be interaction between CEP and OSGI DAL (Data Abstraction Layer) ?

Regards.

Hi,

I have no knowledge of how the "DSO smart meter" communicates with the Home Energy Box(HEB), where I suppose you intend to run the CEP. So I suppose in my answer that the DSO smart meter is able to communicate over HAN to the HEB.

But I can foresee two scenario :

• either the DSO Smart Meter is modified to send to the CEP hosted on the HEB the HTTP/NGSI updateContext requests containing the sensors data.

• either the DSO Smart Meter is using a custom protocol and cannot be modified, in which case you need some additional component hosted on the HEB to translate this custom protocol to NGSI.
  This can be done by using the IoT Agent library (https://github.com/telefonicaid/iotagent-node-lib), which is a small NodeJS library, to build "protocol adapters" which we also call "IoT Agents".
  We have build a custom IoT Agent for testing purposes (https://github.com/Orange-OpenSource/fiware-cepheus/tree/linksprite-ngsi) and Telefonica has build several IoT Agents for different protocols (see https://github.com/telefonicaid/?utf8=%E2%9C%93&query=iotagent)

The CEP does not currently do any authentication/authorization control on the TCP port it exposes (default: 8080). So it should not be directly exposed to the HAN.

> How shall I go about using CEP in HAN(Home Area Network) for
> moniroting & control purpose?, for connections to DSO.
> Following shall be the analysis:
>
> 1. HAN consumption data collection &n optimization
> 2. Connection between DSO smart meter and Home Energy Box (Smart gateway)
> 3. Data privacy assurance

Hi,

How shall I go about using CEP in HAN(Home Area Network) for moniroting & control purpose?, for connections to DSO.
Following shall be the analysis:

1. HAN consumption data collection &n optimization
2. Connection between DSO smart meter and Home Energy Box (Smart gateway)
3. Data privacy assurance

Regards.

Hi

> What is the use of CEP alone? Can I use it alone?

Yes, the CEP can be used alone. It does not require the Broker to be used.

Its use is totally dependent on its configuration.

If you don't associate any "providers" to incoming events, the CEP will not subscribe to a broker and expect applications to send updateContext requests directly to the CEP to trigger incoming events.

Regards,

Hi,

What is the use of CEP alone? Can I use it alone?

Thanks for the quick response. I just want to try them and evaluate with
full running the service of GE and see how it would combine with HAN
energy gateway.

> Now I've run the Jar file. How to proceed? Localhost:8080 states "whitelabel error page"

The Cepheus-CEP and Cepheus-Broker are not user-centric applications, no UI is provided for direct user interaction. They are supposed to be accessed through two APIs : the standard NGSI9/10 V1 API and a dedicated configuration API described in the documentation.

I have pointed you to the documentation of the project :
http://fiware-cepheus.readthedocs.org/en/0.1.0/index.html
It contains several examples on how to use and interact with both applications for testing and learning purposes using common tooling like curl.

Could you please give an insight on what you intend to achieve ? Maybe we will be able to help you more precisely.

Regards,

Now I've run the Jar file. How to proceed? Localhost:8080 states "whitelabel error page"

Hi Nakul,

> I can't seem to run the GE on my machine. Where to get the JAR files, it requires?

The process to run the Cepheus-Broker or Cepheus-CEP are described in the administrative guides :

Cepheus-CEP: http://fiware-cepheus.readthedocs.org/en/0.1.0/admin/cep/index.html
Cepheus-Broker: http://fiware-cepheus.readthedocs.org/en/0.1.0/admin/broker/index.html

> I just want to try and run on my machine. Can you suggest me simple ways for the same.

The simplest way is to download the JARs of the two applications and run them:

1. Download the JARs directly from Sonatype
   wget "https://oss.sonatype.org/service/local/artifact/maven/redirect?r=releases&g=com.orange.cepheus&a=cepheus-broker&v=0.1.0" -O cepheus-broker.jar
   wget "https://oss.sonatype.org/service/local/artifact/maven/redirect?r=releases&g=com.orange.cepheus&a=cepheus-cep&v=0.1.0" -O cepheus-cep.jar
2. Launch the JARs
   java -jar cepheus-broker.jar
   java -jar cepheus-cep.jar

You can find more details instructions on the different ways to download and install the GE from the Administrative guide.

You can find the complete user guide for version 0.1.0 here : http://fiware-cepheus.readthedocs.org/en/0.1.0/index.html

Regards,

I can't seem to run the GE on my machine. Where to get the JAR files, it requires?

I just want to try and run on my machine. Can you suggest me simple ways for the same.

Thanks.

Instances of Cepheus 4.4.3 are available here :
http://catalogue.fiware.org/enablers/gateway-data-handling-ge-cepheus/instances

1. integration of the GE with the HAN energy Gateway including data conversion if needed.
-> You need to develop a gateway to translate your data to NGSI data. you can use our NGSI Library in Java or try with Telefonica IoT Agent Library (https://github.com/telefonicaid/iotagent-node-lib).
You can find an example with sigfox here :
https://github.com/telefonicaid/sigfox-iotagent
2. the function of the GE and its non-functional characteristic that can benefit or constrain
-> You can check the documentation https://github.com/Orange-OpenSource/fiware-cepheus/blob/master/doc/cep/index.md#introduction or look our videos on Fiware Academy about the advantages of our GE :
https://edu.fiware.org/course/view.php?id=36
3. Standalone active testing of the GE functions and performance and report results
-> there are only unit test, you can find analysis here : https://scan.coverity.com/projects/5913
A benchmark will be done for 5.1 version
4. Any fully working online service for the GE?
We are currently deploying a test instance which will replace http://gwdatahdl2.testbed.fi-ware.eu:8080/EspR4FastData

Also, how to check the instance running on your testbed. I can't seem to run it.

Service Endpoint (URL):
http://gwdatahdl2.testbed.fi-ware.eu:8080/EspR4FastData

Hi,
How about the followings:
1. integration of the GE with the HAN energy Gateway including data conversion if needed.
2. the function of the GE and its non-functional characteristic that can benefit or constrain
3. Standalone active testing of the GE functions and performance and report results
4. Any fully working online service for the GE?
Thanks.
Regards,
Nakul

Hi,
This is the correct link https://github.com/Orange-OpenSource/fiware-cepheus/ , our library is under the directory "cepheus-ngsi" . Furthermore if you use Maven, you can find the library on sonatype :
<dependency>
<groupId>com.orange.cepheus</groupId>
<artifactId>cepheus-ngsi</artifactId>
<version>0.1.0</version>
</dependency>
You can find an overview here :
https://github.com/Orange-OpenSource/fiware-cepheus/blob/master/doc/index.md#architecture
More information is available on github :
https://github.com/Orange-OpenSource/fiware-cepheus/tree/master/doc
and
https://github.com/Orange-OpenSource/fiware-cepheus/tree/master/doc/examples

You can find test reports on Travis (link is on Github).

Regards,

Hi,

How about the followings:

1. integration of the GE with the HAN energy Gateway including data conversion if needed.

2. the function of the GE and its non-functional characteristic that can benefit or constrain

3. Standalone active testing of the GE functions and performance and report results

4. Any fully working online service for the GE?

Thanks.

Regards,
Nakul

Hi,

This is the correct link https://github.com/Orange-OpenSource/fiware-cepheus/ , our library is under the directory "cepheus-ngsi" . Furthermore if you use Maven, you can find the library on sonatype :
<dependency>
<groupId>com.orange.cepheus</groupId>
<artifactId>cepheus-ngsi</artifactId>
<version>0.1.0</version>
</dependency>

You can find an overview here :
https://github.com/Orange-OpenSource/fiware-cepheus/blob/master/doc/index.md#architecture

More information is available on github :
https://github.com/Orange-OpenSource/fiware-cepheus/tree/master/doc
and
https://github.com/Orange-OpenSource/fiware-cepheus/tree/master/doc/examples

Regards,

Hi,
The link in the comment is not reachable. However, if i could get an
overview/ high level diagram i would really appreciate that.

Thanks.

Regards,
Nakul

Hi Nakul,

Please, be aware the GE Owner answer a comment, which is available in the JIRA issue.

Kind regards,
Manuel

Hi,

You need a converter NGSI to communicate with the DH GE.
This converter can be developed with our Java NGSI common library https://github.com/Orange-OpenSource/fiware-cepheus/cepheus-ngsi
Our GE can consolidate your data by using the CEP Engine.
Don't hesitate to contact us for more information.