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Posted to dev@stratos.apache.org by Matteo Cusmai <cu...@gmail.com> on 2014/06/12 08:03:39 UTC
Java stratos api
Hi all,
I am going to develop a java saas application, and I would like to use
stratos with tomcat, or jboss after have developed a jboss cartdrige.
Which are the java api/lib that I have to use in order to develop a multi
tenant application?
Thanks in advance,
Matteo.
Re: Java stratos api
Posted by Matteo Cusmai <cu...@gmail.com>.
Hi all,
having more API to access and retrieve more information about tenants and
users is necessary, but it isn't enough.
For example, suppose you have to develop a simple servlet, you need to
retrieve tenant information from HttpServletContext or from HTTP header, I
don't know,
after that I have to access to stratos services in order to retrieve
information about tenants.
Matteo Cusmai
On Sat, Jun 14, 2014 at 7:47 AM, Imesh Gunaratne <im...@apache.org> wrote:
> Hi Sanjiva,
>
> Thank you very much for pointing this out. Yes I think I was not clear
> enough in my first response.
>
> What I meant was there are no restrictions in Stratos for writing
> Multi-Tenant applications using Stratos APIs or libraries (or more
> specifically Carbon). Developers could use any of the available
> technologies to implement Multi-Tenancy features in applications and create
> cartridges including the required libraries. However I forgot to mention
> that those applications could retrieve tenant information from the
> connected userstore or Stratos Manager since Stratos does manage tenants
> for all the services.
>
> Thanks Sameera for the details, but I think we might not be able to use
> some of the above APIs like Carbon Context and Carbon Caching if the
> application is not written using Carbon.
>
> I think from Stratos perspective if the application is not using Carbon
> still we could retrieve tenant information from four different channels:
>
>
>
> 1. Applications can directly communicate with the connected Userstore.
> 2. Applications can talk to the REST API and get tenant information.
> However I believe we have not exposed much methods to do this in 4.0.0
> release [1].
> 3. Applications can talk to Admin Services in Stratos Manager and retrieve
> tenant information. Since Stratos Manager is implemented using Carbon and
> uses Carbon user management features for managing tenants, these services
> could provide all the information required.
> 4. Applications can retrieve tenant information from the tenant topic in
> message broker, however we have limited information here at the moment [2].
>
> If the application is written using Carbon, except for above four channels
> it could retrieve more information from the Carbon runtime. WDYT?
>
> [1]
> https://cwiki.apache.org/confluence/display/STRATOS/4.0.0+Tenant+Operations
> [2]
> https://cwiki.apache.org/confluence/display/STRATOS/4.0.0+Stratos+Pub-Sub+Communication
>
> Thanks
> Imesh
>
>
> On Sat, Jun 14, 2014 at 8:21 AM, Sameera Jayasoma <
> sameera.madushan@gmail.com> wrote:
>
>> Noted Sanjiva. I will include slides on Stratos APIs, specially user
>> management, registry/repository, CarbonContext API, Caching, Clustering API
>> etc.
>>
>>
>> Matteo, you can leverage a bunch Stratos level APIs to build your
>> multi-tenant SaaS app. Here are some the available APIs. Let us know your
>> requirements.
>>
>> Identity and Security API - Manage users, roles, permission,
>> authentication and authorization functionalities
>> Registry/Repository API - crud api for repository.
>> Caching API - Java caching API
>> CarbonContext API - CarbonContext is the entity which provides the
>> runtime related contextual information of the current executing thread. Any
>> code running in Stratos can retrieve following information from the
>> CarbonContext API.
>>
>> 1) Tenant information who is executing the code.
>> 2) Logged in user information, if any.
>> 3) Application information, if any.
>>
>> Thanks,
>> Sameera.
>>
>>
>> On Sat, Jun 14, 2014 at 7:38 AM, Sanjiva Weerawarana <sa...@wso2.com>
>> wrote:
>>
>>> Imesh IMO your answer is not correct :-). Stratos has a set of APIs that
>>> allows a super tenant app to be an multi-tenant SaaS app - for example the
>>> admin app is written like that. What Matteo is asking is how to use Stratos
>>> as the foundation of a SaaS application!
>>>
>>> Sameera you're giving a talk on this at WSO2Con next week in Barcelona
>>> :-). Maybe you can answer and then share the slides after.
>>>
>>> Cheers,
>>>
>>> Sanjiva.
>>>
>>>
>>> On Thu, Jun 12, 2014 at 8:13 PM, Matteo Cusmai <cu...@gmail.com>
>>> wrote:
>>>
>>>> Hi Imesh,
>>>> thanks a lot for the answer and for the useful links.
>>>>
>>>> However, I know a bit WSO2 and I know it provides useful capabilities
>>>> to develop a multi tenant application.
>>>> But suppose that I cannot use it, how can I retrieve tenant information
>>>> from my java code?
>>>>
>>>>
>>>> Matteo Cusmai
>>>>
>>>>
>>>> On Thu, Jun 12, 2014 at 4:38 PM, Imesh Gunaratne <im...@apache.org>
>>>> wrote:
>>>>
>>>>> Hi Matteo,
>>>>>
>>>>> According to Stratos architecture there are no requirements for using
>>>>> certain APIs/libraries for developing applications. It's completely loosely
>>>>> coupled. Applications can be developed according to the requirements of the
>>>>> cartridge they run on.
>>>>>
>>>>> If you are looking at developing a Multi-Tenant application, AFAIK
>>>>> Tomcat does not provide Multi-Tenancy features out of the box. However you
>>>>> could use Carbon framework [1] for that. Yes I could see JBoss/Hibernate
>>>>> also provide Multi-Tenancy features [2].
>>>>>
>>>>> [1]
>>>>> http://wso2.com/library/blog-post/2013/09/creating-a-saas-app-with-the-multi-tenant-carbon-framework-step-1/
>>>>> [2] https://community.jboss.org/wiki/Multi-tenancyDesign
>>>>>
>>>>> Thanks
>>>>>
>>>>>
>>>>> On Thu, Jun 12, 2014 at 11:33 AM, Matteo Cusmai <
>>>>> cusmaimatteo@gmail.com> wrote:
>>>>>
>>>>>> Hi all,
>>>>>> I am going to develop a java saas application, and I would like to
>>>>>> use stratos with tomcat, or jboss after have developed a jboss cartdrige.
>>>>>>
>>>>>> Which are the java api/lib that I have to use in order to develop a
>>>>>> multi tenant application?
>>>>>>
>>>>>> Thanks in advance,
>>>>>> Matteo.
>>>>>>
>>>>>
>>>>>
>>>>>
>>>>> --
>>>>> Imesh Gunaratne
>>>>>
>>>>> Technical Lead, WSO2
>>>>> Committer & PPMC Member, Apache Stratos
>>>>>
>>>>
>>>>
>>>
>>>
>>> --
>>> Sanjiva Weerawarana, Ph.D.
>>> Founder, Chairman & CEO; WSO2, Inc.; http://wso2.com/
>>> email: sanjiva@wso2.com; office: (+1 650 745 4499 | +94 11 214 5345)
>>> x5700; cell: +94 77 787 6880 | +1 408 466 5099; voip: +1 650 265 8311
>>> blog: http://sanjiva.weerawarana.org/; twitter: @sanjiva
>>> Lean . Enterprise . Middleware
>>>
>>
>>
>>
>> --
>> Sameera Jayasoma
>>
>> blog: https://blog.sameera.org
>> twitter: https://twitter.com/sameerajayasoma
>> flickr: http://www.flickr.com/photos/sameera-jayasoma/
>>
>
>
>
> --
> Imesh Gunaratne
>
> Technical Lead, WSO2
> Committer & PPMC Member, Apache Stratos
>
Re: Java stratos api
Posted by Imesh Gunaratne <im...@apache.org>.
Hi Sanjiva,
Thank you very much for pointing this out. Yes I think I was not clear
enough in my first response.
What I meant was there are no restrictions in Stratos for writing
Multi-Tenant applications using Stratos APIs or libraries (or more
specifically Carbon). Developers could use any of the available
technologies to implement Multi-Tenancy features in applications and create
cartridges including the required libraries. However I forgot to mention
that those applications could retrieve tenant information from the
connected userstore or Stratos Manager since Stratos does manage tenants
for all the services.
Thanks Sameera for the details, but I think we might not be able to use
some of the above APIs like Carbon Context and Carbon Caching if the
application is not written using Carbon.
I think from Stratos perspective if the application is not using Carbon
still we could retrieve tenant information from four different channels:
1. Applications can directly communicate with the connected Userstore.
2. Applications can talk to the REST API and get tenant information.
However I believe we have not exposed much methods to do this in 4.0.0
release [1].
3. Applications can talk to Admin Services in Stratos Manager and retrieve
tenant information. Since Stratos Manager is implemented using Carbon and
uses Carbon user management features for managing tenants, these services
could provide all the information required.
4. Applications can retrieve tenant information from the tenant topic in
message broker, however we have limited information here at the moment [2].
If the application is written using Carbon, except for above four channels
it could retrieve more information from the Carbon runtime. WDYT?
[1]
https://cwiki.apache.org/confluence/display/STRATOS/4.0.0+Tenant+Operations
[2]
https://cwiki.apache.org/confluence/display/STRATOS/4.0.0+Stratos+Pub-Sub+Communication
Thanks
Imesh
On Sat, Jun 14, 2014 at 8:21 AM, Sameera Jayasoma <
sameera.madushan@gmail.com> wrote:
> Noted Sanjiva. I will include slides on Stratos APIs, specially user
> management, registry/repository, CarbonContext API, Caching, Clustering API
> etc.
>
>
> Matteo, you can leverage a bunch Stratos level APIs to build your
> multi-tenant SaaS app. Here are some the available APIs. Let us know your
> requirements.
>
> Identity and Security API - Manage users, roles, permission,
> authentication and authorization functionalities
> Registry/Repository API - crud api for repository.
> Caching API - Java caching API
> CarbonContext API - CarbonContext is the entity which provides the
> runtime related contextual information of the current executing thread. Any
> code running in Stratos can retrieve following information from the
> CarbonContext API.
>
> 1) Tenant information who is executing the code.
> 2) Logged in user information, if any.
> 3) Application information, if any.
>
> Thanks,
> Sameera.
>
>
> On Sat, Jun 14, 2014 at 7:38 AM, Sanjiva Weerawarana <sa...@wso2.com>
> wrote:
>
>> Imesh IMO your answer is not correct :-). Stratos has a set of APIs that
>> allows a super tenant app to be an multi-tenant SaaS app - for example the
>> admin app is written like that. What Matteo is asking is how to use Stratos
>> as the foundation of a SaaS application!
>>
>> Sameera you're giving a talk on this at WSO2Con next week in Barcelona
>> :-). Maybe you can answer and then share the slides after.
>>
>> Cheers,
>>
>> Sanjiva.
>>
>>
>> On Thu, Jun 12, 2014 at 8:13 PM, Matteo Cusmai <cu...@gmail.com>
>> wrote:
>>
>>> Hi Imesh,
>>> thanks a lot for the answer and for the useful links.
>>>
>>> However, I know a bit WSO2 and I know it provides useful capabilities to
>>> develop a multi tenant application.
>>> But suppose that I cannot use it, how can I retrieve tenant information
>>> from my java code?
>>>
>>>
>>> Matteo Cusmai
>>>
>>>
>>> On Thu, Jun 12, 2014 at 4:38 PM, Imesh Gunaratne <im...@apache.org>
>>> wrote:
>>>
>>>> Hi Matteo,
>>>>
>>>> According to Stratos architecture there are no requirements for using
>>>> certain APIs/libraries for developing applications. It's completely loosely
>>>> coupled. Applications can be developed according to the requirements of the
>>>> cartridge they run on.
>>>>
>>>> If you are looking at developing a Multi-Tenant application, AFAIK
>>>> Tomcat does not provide Multi-Tenancy features out of the box. However you
>>>> could use Carbon framework [1] for that. Yes I could see JBoss/Hibernate
>>>> also provide Multi-Tenancy features [2].
>>>>
>>>> [1]
>>>> http://wso2.com/library/blog-post/2013/09/creating-a-saas-app-with-the-multi-tenant-carbon-framework-step-1/
>>>> [2] https://community.jboss.org/wiki/Multi-tenancyDesign
>>>>
>>>> Thanks
>>>>
>>>>
>>>> On Thu, Jun 12, 2014 at 11:33 AM, Matteo Cusmai <cusmaimatteo@gmail.com
>>>> > wrote:
>>>>
>>>>> Hi all,
>>>>> I am going to develop a java saas application, and I would like to use
>>>>> stratos with tomcat, or jboss after have developed a jboss cartdrige.
>>>>>
>>>>> Which are the java api/lib that I have to use in order to develop a
>>>>> multi tenant application?
>>>>>
>>>>> Thanks in advance,
>>>>> Matteo.
>>>>>
>>>>
>>>>
>>>>
>>>> --
>>>> Imesh Gunaratne
>>>>
>>>> Technical Lead, WSO2
>>>> Committer & PPMC Member, Apache Stratos
>>>>
>>>
>>>
>>
>>
>> --
>> Sanjiva Weerawarana, Ph.D.
>> Founder, Chairman & CEO; WSO2, Inc.; http://wso2.com/
>> email: sanjiva@wso2.com; office: (+1 650 745 4499 | +94 11 214 5345)
>> x5700; cell: +94 77 787 6880 | +1 408 466 5099; voip: +1 650 265 8311
>> blog: http://sanjiva.weerawarana.org/; twitter: @sanjiva
>> Lean . Enterprise . Middleware
>>
>
>
>
> --
> Sameera Jayasoma
>
> blog: https://blog.sameera.org
> twitter: https://twitter.com/sameerajayasoma
> flickr: http://www.flickr.com/photos/sameera-jayasoma/
>
--
Imesh Gunaratne
Technical Lead, WSO2
Committer & PPMC Member, Apache Stratos
Re: Java stratos api
Posted by Sameera Jayasoma <sa...@gmail.com>.
Noted Sanjiva. I will include slides on Stratos APIs, specially user
management, registry/repository, CarbonContext API, Caching, Clustering API
etc.
Matteo, you can leverage a bunch Stratos level APIs to build your
multi-tenant SaaS app. Here are some the available APIs. Let us know your
requirements.
Identity and Security API - Manage users, roles, permission,
authentication and authorization functionalities
Registry/Repository API - crud api for repository.
Caching API - Java caching API
CarbonContext API - CarbonContext is the entity which provides the runtime
related contextual information of the current executing thread. Any code
running in Stratos can retrieve following information from the
CarbonContext API.
1) Tenant information who is executing the code.
2) Logged in user information, if any.
3) Application information, if any.
Thanks,
Sameera.
On Sat, Jun 14, 2014 at 7:38 AM, Sanjiva Weerawarana <sa...@wso2.com>
wrote:
> Imesh IMO your answer is not correct :-). Stratos has a set of APIs that
> allows a super tenant app to be an multi-tenant SaaS app - for example the
> admin app is written like that. What Matteo is asking is how to use Stratos
> as the foundation of a SaaS application!
>
> Sameera you're giving a talk on this at WSO2Con next week in Barcelona
> :-). Maybe you can answer and then share the slides after.
>
> Cheers,
>
> Sanjiva.
>
>
> On Thu, Jun 12, 2014 at 8:13 PM, Matteo Cusmai <cu...@gmail.com>
> wrote:
>
>> Hi Imesh,
>> thanks a lot for the answer and for the useful links.
>>
>> However, I know a bit WSO2 and I know it provides useful capabilities to
>> develop a multi tenant application.
>> But suppose that I cannot use it, how can I retrieve tenant information
>> from my java code?
>>
>>
>> Matteo Cusmai
>>
>>
>> On Thu, Jun 12, 2014 at 4:38 PM, Imesh Gunaratne <im...@apache.org>
>> wrote:
>>
>>> Hi Matteo,
>>>
>>> According to Stratos architecture there are no requirements for using
>>> certain APIs/libraries for developing applications. It's completely loosely
>>> coupled. Applications can be developed according to the requirements of the
>>> cartridge they run on.
>>>
>>> If you are looking at developing a Multi-Tenant application, AFAIK
>>> Tomcat does not provide Multi-Tenancy features out of the box. However you
>>> could use Carbon framework [1] for that. Yes I could see JBoss/Hibernate
>>> also provide Multi-Tenancy features [2].
>>>
>>> [1]
>>> http://wso2.com/library/blog-post/2013/09/creating-a-saas-app-with-the-multi-tenant-carbon-framework-step-1/
>>> [2] https://community.jboss.org/wiki/Multi-tenancyDesign
>>>
>>> Thanks
>>>
>>>
>>> On Thu, Jun 12, 2014 at 11:33 AM, Matteo Cusmai <cu...@gmail.com>
>>> wrote:
>>>
>>>> Hi all,
>>>> I am going to develop a java saas application, and I would like to use
>>>> stratos with tomcat, or jboss after have developed a jboss cartdrige.
>>>>
>>>> Which are the java api/lib that I have to use in order to develop a
>>>> multi tenant application?
>>>>
>>>> Thanks in advance,
>>>> Matteo.
>>>>
>>>
>>>
>>>
>>> --
>>> Imesh Gunaratne
>>>
>>> Technical Lead, WSO2
>>> Committer & PPMC Member, Apache Stratos
>>>
>>
>>
>
>
> --
> Sanjiva Weerawarana, Ph.D.
> Founder, Chairman & CEO; WSO2, Inc.; http://wso2.com/
> email: sanjiva@wso2.com; office: (+1 650 745 4499 | +94 11 214 5345)
> x5700; cell: +94 77 787 6880 | +1 408 466 5099; voip: +1 650 265 8311
> blog: http://sanjiva.weerawarana.org/; twitter: @sanjiva
> Lean . Enterprise . Middleware
>
--
Sameera Jayasoma
blog: https://blog.sameera.org
twitter: https://twitter.com/sameerajayasoma
flickr: http://www.flickr.com/photos/sameera-jayasoma/
Re: Java stratos api
Posted by Sanjiva Weerawarana <sa...@wso2.com>.
Imesh IMO your answer is not correct :-). Stratos has a set of APIs that
allows a super tenant app to be an multi-tenant SaaS app - for example the
admin app is written like that. What Matteo is asking is how to use Stratos
as the foundation of a SaaS application!
Sameera you're giving a talk on this at WSO2Con next week in Barcelona :-).
Maybe you can answer and then share the slides after.
Cheers,
Sanjiva.
On Thu, Jun 12, 2014 at 8:13 PM, Matteo Cusmai <cu...@gmail.com>
wrote:
> Hi Imesh,
> thanks a lot for the answer and for the useful links.
>
> However, I know a bit WSO2 and I know it provides useful capabilities to
> develop a multi tenant application.
> But suppose that I cannot use it, how can I retrieve tenant information
> from my java code?
>
>
> Matteo Cusmai
>
>
> On Thu, Jun 12, 2014 at 4:38 PM, Imesh Gunaratne <im...@apache.org> wrote:
>
>> Hi Matteo,
>>
>> According to Stratos architecture there are no requirements for using
>> certain APIs/libraries for developing applications. It's completely loosely
>> coupled. Applications can be developed according to the requirements of the
>> cartridge they run on.
>>
>> If you are looking at developing a Multi-Tenant application, AFAIK Tomcat
>> does not provide Multi-Tenancy features out of the box. However you could
>> use Carbon framework [1] for that. Yes I could see JBoss/Hibernate also
>> provide Multi-Tenancy features [2].
>>
>> [1]
>> http://wso2.com/library/blog-post/2013/09/creating-a-saas-app-with-the-multi-tenant-carbon-framework-step-1/
>> [2] https://community.jboss.org/wiki/Multi-tenancyDesign
>>
>> Thanks
>>
>>
>> On Thu, Jun 12, 2014 at 11:33 AM, Matteo Cusmai <cu...@gmail.com>
>> wrote:
>>
>>> Hi all,
>>> I am going to develop a java saas application, and I would like to use
>>> stratos with tomcat, or jboss after have developed a jboss cartdrige.
>>>
>>> Which are the java api/lib that I have to use in order to develop a
>>> multi tenant application?
>>>
>>> Thanks in advance,
>>> Matteo.
>>>
>>
>>
>>
>> --
>> Imesh Gunaratne
>>
>> Technical Lead, WSO2
>> Committer & PPMC Member, Apache Stratos
>>
>
>
--
Sanjiva Weerawarana, Ph.D.
Founder, Chairman & CEO; WSO2, Inc.; http://wso2.com/
email: sanjiva@wso2.com; office: (+1 650 745 4499 | +94 11 214 5345)
x5700; cell: +94 77 787 6880 | +1 408 466 5099; voip: +1 650 265 8311
blog: http://sanjiva.weerawarana.org/; twitter: @sanjiva
Lean . Enterprise . Middleware
Re: Java stratos api
Posted by Matteo Cusmai <cu...@gmail.com>.
Hi Imesh,
thanks a lot for the answer and for the useful links.
However, I know a bit WSO2 and I know it provides useful capabilities to
develop a multi tenant application.
But suppose that I cannot use it, how can I retrieve tenant information
from my java code?
Matteo Cusmai
On Thu, Jun 12, 2014 at 4:38 PM, Imesh Gunaratne <im...@apache.org> wrote:
> Hi Matteo,
>
> According to Stratos architecture there are no requirements for using
> certain APIs/libraries for developing applications. It's completely loosely
> coupled. Applications can be developed according to the requirements of the
> cartridge they run on.
>
> If you are looking at developing a Multi-Tenant application, AFAIK Tomcat
> does not provide Multi-Tenancy features out of the box. However you could
> use Carbon framework [1] for that. Yes I could see JBoss/Hibernate also
> provide Multi-Tenancy features [2].
>
> [1]
> http://wso2.com/library/blog-post/2013/09/creating-a-saas-app-with-the-multi-tenant-carbon-framework-step-1/
> [2] https://community.jboss.org/wiki/Multi-tenancyDesign
>
> Thanks
>
>
> On Thu, Jun 12, 2014 at 11:33 AM, Matteo Cusmai <cu...@gmail.com>
> wrote:
>
>> Hi all,
>> I am going to develop a java saas application, and I would like to use
>> stratos with tomcat, or jboss after have developed a jboss cartdrige.
>>
>> Which are the java api/lib that I have to use in order to develop a multi
>> tenant application?
>>
>> Thanks in advance,
>> Matteo.
>>
>
>
>
> --
> Imesh Gunaratne
>
> Technical Lead, WSO2
> Committer & PPMC Member, Apache Stratos
>
Re: Java stratos api
Posted by Imesh Gunaratne <im...@apache.org>.
Hi Matteo,
According to Stratos architecture there are no requirements for using
certain APIs/libraries for developing applications. It's completely loosely
coupled. Applications can be developed according to the requirements of the
cartridge they run on.
If you are looking at developing a Multi-Tenant application, AFAIK Tomcat
does not provide Multi-Tenancy features out of the box. However you could
use Carbon framework [1] for that. Yes I could see JBoss/Hibernate also
provide Multi-Tenancy features [2].
[1]
http://wso2.com/library/blog-post/2013/09/creating-a-saas-app-with-the-multi-tenant-carbon-framework-step-1/
[2] https://community.jboss.org/wiki/Multi-tenancyDesign
Thanks
On Thu, Jun 12, 2014 at 11:33 AM, Matteo Cusmai <cu...@gmail.com>
wrote:
> Hi all,
> I am going to develop a java saas application, and I would like to use
> stratos with tomcat, or jboss after have developed a jboss cartdrige.
>
> Which are the java api/lib that I have to use in order to develop a multi
> tenant application?
>
> Thanks in advance,
> Matteo.
>
--
Imesh Gunaratne
Technical Lead, WSO2
Committer & PPMC Member, Apache Stratos