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Re: Re: Integration with Drools rule engine
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Re: Re: Integration with Drools rule engine
by sasaboy
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Hi,
1. I've already written in previous post that shark can expose its API through the WebServices, and thus it allows you to get all the possible definitions (in fact factories that represent certain definition in the runtime) and to instantiate the process based on the chosen definition 2. If you mean compensation that can be modeled in designed time, yes, in XPDL you can do such things. In the runtime, shark has fully transactional behavior (through JTA and 2phase commit) - either everything belonging to a transaction succeeds and gets commited to DB, or everything is rolled back. Thanks to JTA, you can have your application which integrates shark as POJO talking to its own application DB and Shark talking to its database, and if anything fails on your app DB side or on the shark side, both app and shark DB state will be rolled back. 3. Process instance can be SUSPENDED and then RESUMED (the same applies to activity instances) 4. Don't know what you meant by that? If you mean to wait for some external event to continue, then yes, but this is up to the implementation of appropriate automatic activity (so called ToolAgent implementation)... Greetings, Sasa. Ajai wrote: > Hi Sasa, > Thanks a lot for the response. > I need some more details regarding Shark to complete our evaluation. 1. Can a process definition be exposed as a service > 2. Is there a Process compensation (Process roll back/Exception handling) > 3. Can a process instance be stopped and resumed again. > 4. Can a process be made wait asynchronously. > Thanks again for the response, > Regards > Ajai G > Sasa Bojanic wrote: > >> Hi, >> I think the integration with Drools shouldn't be a problem. The question >> is for which purpose you want to integrate it? >> If it is for evaluating of transition condition expressions, you can just write your own Scripting interface implementation... >> About other questions: >> 1. the definitions are versioned. E.g., when you update XPDL existing in >> the system (which can contain of many process definitions), the new definition (its representation in the runtime) gets new version. Process >> instances running on old definitions continue running with the old one, >> and newly created processes run on new definitions. >> 2. Yes, you can communicate with Shark through Shark's WebServices API 3. Yes, inside the process, there can be tool agent (automatic) activity >> which can interact with WebServices, get some information, put it back into the process and continue with the process >> 4. Yes >> 5. Shark is typically embedded into your application (when you use it through its POJO API), and in that case authorization is something you do within your application. However, shark has Security interface (we normally configure shark not to use it, and we have only dummy implementation of this interface), and if you provide the custom implementation of this interface, you can do authorization. >> 6. This is of course supported (we completely support XPDL1.0). You can >> call sub-flow from the main flow either synchronously (where main flow initiates sub flow by passing certain information, waits for sub flow to >> finish, gets back the results of the sub flow and then continues) or asynchronously (where main flow initiates sub flow and passes >> information to sub flow, and continues immediately without waiting sub flow) >> Regards, >> Sasa. >> Ajai wrote: >> >>> Hi, >>> We are in the process of evaluating a Workflow engine that can be integrated >>> with Drools rule engine. Can Enhydra shark be integrated with Drools rule >>> engine. >>> Also please tell us the following features are available: >>> 1. versioning of process definition >>> 2. Can web service act as a input >>> 3. Can Web service be actor in process >>> 4. Process steps can be assigned to Roles, and User in Roles >>> 5. Authorization mechanism. >>> 6. Creating a sub flow from a main flow. >>> Please let us know the inputs. >>> Thanks in advance >>> Regards >>> Ajai G >>> >>> >> -- >> You receive this message as a subscriber of the shark@... mailing >> To unsubscribe: mailto:shark-unsubscribe@... >> For general help: mailto:sympa@...?subject=help >> OW2 mailing lists service home page: http://www.ow2.org/wws >> > -- You receive this message as a subscriber of the shark@... mailing list. To unsubscribe: mailto:shark-unsubscribe@... For general help: mailto:sympa@...?subject=help OW2 mailing lists service home page: http://www.ow2.org/wws |
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Re: Re: Integration with Drools rule engine
by Ajai
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Hi Sasa,
Thanks a lot for the support and guidance you provided. One question i have now is can we create and deploy a process dynamically using API in shark? What level of support is available for Integration with Calendaring/Scheduling? Is there a auditing support? Thanks, Ajai G
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Re: Re: Re: Integration with Drools rule engine
by Sasa Bojanic
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Hi,
- you can create new XPDL with your tool (e.g. JaWE), and then deploy it while shark runs using a certain API. There is also an API for XPDL update or unload... - depends what you think by this...in its essential, shark is a library...and you can do whatever you like to integrate it with your system either through modeling XPDL, through the API, or by combining both. Regarding e.g. delayed generation of the assignments for the users (not to create assignments at a time activity instance is being created), you can modify Standard assignment allocation component or write your own (since this is based on Shark's internal API) and configure shark to use it, which will generate assignments with some delay. We have integration of Shark's task list with Outlook (you can see tasks from Shark in outlook, modify it, complete it)...but this is professional version only - shark has full auditing support. every action regarding process, activity is audited (e.g. who and when created/started/suspended/resumed/aborted/completed the process, who and when changed process variable...similar and some more for the activity) Greetings, Sasa. Ajai wrote: > Hi Sasa, > > Thanks a lot for the support and guidance you provided. > > One question i have now is > > can we create and deploy a process dynamically using API in shark? > > What level of support is available for Integration with > Calendaring/Scheduling? > > Is there a auditing support? > > Thanks, > Ajai G > > > sasaboy wrote: > >> Hi, >> >> 1. I've already written in previous post that shark can expose its API >> through the WebServices, and thus it allows you to get all the possible >> definitions (in fact factories that represent certain definition in the >> runtime) and to instantiate the process based on the chosen definition >> >> 2. If you mean compensation that can be modeled in designed time, yes, in >> XPDL you can do such things. In the runtime, shark has fully >> transactional behavior (through JTA and 2phase commit) - either >> everything belonging to a transaction succeeds and gets commited to DB, >> or everything is rolled back. Thanks to JTA, you can have your >> application which integrates shark as POJO talking to its own >> application DB and Shark talking to its database, and if anything fails >> on your app DB side or on the shark side, both app and shark DB state >> will be rolled back. >> >> 3. Process instance can be SUSPENDED and then RESUMED (the same applies >> to activity instances) >> >> 4. Don't know what you meant by that? If you mean to wait for some >> external event to continue, then yes, but this is up to the >> implementation of appropriate automatic activity (so called ToolAgent >> implementation)... >> >> >> Greetings, >> Sasa. >> >> Ajai wrote: >> >>> Hi Sasa, >>> Thanks a lot for the response. >>> I need some more details regarding Shark to complete our evaluation. 1. >>> >> Can a process definition be exposed as a service >> >>> 2. Is there a Process compensation (Process roll back/Exception >>> >> handling) >> >>> 3. Can a process instance be stopped and resumed again. >>> 4. Can a process be made wait asynchronously. >>> Thanks again for the response, >>> Regards >>> Ajai G >>> Sasa Bojanic wrote: >>> >>> >>>> Hi, >>>> I think the integration with Drools shouldn't be a problem. The >>>> >> question >> >>>> is for which purpose you want to integrate it? >>>> If it is for evaluating of transition condition expressions, you can >>>> >> just write your own Scripting interface implementation... >> >>>> About other questions: >>>> 1. the definitions are versioned. E.g., when you update XPDL existing >>>> >> in >> >>>> the system (which can contain of many process definitions), the new >>>> >> definition (its representation in the runtime) gets new version. >> Process >> >>>> instances running on old definitions continue running with the old one, >>>> >>>> and newly created processes run on new definitions. >>>> 2. Yes, you can communicate with Shark through Shark's WebServices API >>>> >> 3. Yes, inside the process, there can be tool agent (automatic) >> activity >> >>>> which can interact with WebServices, get some information, put it back >>>> >> into the process and continue with the process >> >>>> 4. Yes >>>> 5. Shark is typically embedded into your application (when you use it >>>> >> through its POJO API), and in that case authorization is something you >> do within your application. However, shark has Security interface (we >> normally configure shark not to use it, and we have only dummy >> implementation of this interface), and if you provide the custom >> implementation of this interface, you can do authorization. >> >>>> 6. This is of course supported (we completely support XPDL1.0). You can >>>> >>>> call sub-flow from the main flow either synchronously (where main flow >>>> >> initiates sub flow by passing certain information, waits for sub flow >> to >> >>>> finish, gets back the results of the sub flow and then continues) or >>>> >> asynchronously (where main flow initiates sub flow and passes >> >>>> information to sub flow, and continues immediately without waiting sub >>>> >> flow) >> >>>> Regards, >>>> Sasa. >>>> Ajai wrote: >>>> >>>> >>>>> Hi, >>>>> We are in the process of evaluating a Workflow engine that can be >>>>> >> integrated >> >>>>> with Drools rule engine. Can Enhydra shark be integrated with Drools >>>>> >> rule >> >>>>> engine. >>>>> Also please tell us the following features are available: >>>>> 1. versioning of process definition >>>>> 2. Can web service act as a input >>>>> 3. Can Web service be actor in process >>>>> 4. Process steps can be assigned to Roles, and User in Roles >>>>> 5. Authorization mechanism. >>>>> 6. Creating a sub flow from a main flow. >>>>> Please let us know the inputs. >>>>> Thanks in advance >>>>> Regards >>>>> Ajai G >>>>> >>>>> >>>>> >>>> -- >>>> You receive this message as a subscriber of the shark@... mailing >>>> >> list. >> >>>> To unsubscribe: mailto:shark-unsubscribe@... >>>> For general help: mailto:sympa@...?subject=help >>>> OW2 mailing lists service home page: http://www.ow2.org/wws >>>> >>>> >> >> >> >> >> >> >> -- >> You receive this message as a subscriber of the shark@... mailing >> list. >> To unsubscribe: mailto:shark-unsubscribe@... >> For general help: mailto:sympa@...?subject=help >> OW2 mailing lists service home page: http://www.ow2.org/wws >> >> >> > > -- You receive this message as a subscriber of the shark@... mailing list. To unsubscribe: mailto:shark-unsubscribe@... For general help: mailto:sympa@...?subject=help OW2 mailing lists service home page: http://www.ow2.org/wws |
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Re: Re: Re: Integration with Drools rule engine
by Ajai
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Thanks a lot for your greatest support.
 Expecting the same in future. Thanks again, Ajai G
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