Bug 908812

Please note that this BZ is public, the customer wishes to track it.

Rick

Initial designs for this functionality suggested the following:


-Add a method that will allow users to search process instances based on variable value.
-For basic types (String, Integer, etc) it will work immediately
-For complex types, 'toString' should be implemented in a way that will facilitate the search

Thanks,

Rick

Additional customer feedback as we work on this RFE/BZ.

If possible, they would like to retreive image data via REST as such:

http://localhost:8080/business-central-server/rs/process/definition/{id}/image/{instance}

Thanks,

Rick

This certainly a good API to expose.  But given the schedule impact we punt this out to post 6.0

Marco, can this one be closed based on what's there currently already?

This has been added to the REST api for BPMS: 

6.0.x: 
https://github.com/droolsjbpm/droolsjbpm-integration/commit/9f72787

master: 
https://github.com/droolsjbpm/droolsjbpm-integration/commit/9f72787

I've added the following rest operations: 

 /rest/history/variable/{variable-id}
 /rest/history/variable/{variable-id}/value/{variable-value}
 /rest/history/variable/{variable-id}/instances
 /rest/history/variable/{variable-id}/value/{variable-value}/instances

The first 2 operations simply return the list of (JAXB/JSON) VariableInstanceLog instances. These instances contain, among other information, the id of the process instance. 

The second 2 operations return the list of process instances (by first retrieving the list of variable instance logs and then retrieving the process instances based on the process instance id field in the variable instance logs). 

---

With regards to retrieving the image data, I'm not sure I'll have time to do that before the release. I'm doing my best, but can't promise anything.

Rick, FYI: 

This feature has been added to the REST api: 

-Add a method that will allow users to search process instances based on variable value.
-For basic types (String, Integer, etc) it will work immediately

For the time being, see: 
https://github.com/droolsjbpm/droolsjbpm-integration/wiki/Rest-API#history-variable-operations

That documentation will eventually be added to both product and community docs.

I've tested this with ER7 and written several tests for this feature, see:
http://git.app.eng.bos.redhat.com/jbossqe/brms.git/tree/test-jbpm-integration/src/test/java/org/jboss/qa/bpms/jbpm/integration/remote/VariableHistoryTest.java

However none of them work.

1.) I cannot work with variables correctly. String values are somehow converted to Long and I don't know why:
parameters.put("var1", "30");
produces:
java.lang.ClassCastException: java.lang.Long cannot be cast to java.lang.String
Starting the process from business-central manually works well.

2.) In other case JaxbHistoryLogList contains empty internal historyLogList, no variable "myobject" found in the log.

3.) I've also encountered this error:
org.jboss.resteasy.plugins.providers.jaxb.JAXBUnmarshalException: javax.xml.bind.UnmarshalException: unexpected element (uri:"", local:"process-instance-list").
        // Expected elements are <{}log-instance-list>,<{}node-instance-log>,<{}process-instance-log>,<{}variable-instance-log>

All errors are commented in corresponding test methods, which reproduce them.

To reproduce issues listed above:
1.) Download BPMS 6 ER7 (eap6) and setup a db (in my case PostgreSQL).
2.) Add user ibek:
ibek=9143dd65119c7b733e02c5076dcf8f84  (into application-users.properties)
ibek=admin  (into application-roles.properties)
3.) Run the server.
4.) Run the tests: 
git clone git://git.app.eng.bos.redhat.com/jbossqe/brms.git
cd brms
mvn clean test -Pjbpm-integration -Dtest=VariableHistoryTest
(it will install test projects from bpms-assets.git automatically).

I think this should be fixed, as this was requested by a customer.

Fixed. Commits: 

6.0.x: 
https://github.com/droolsjbpm/droolsjbpm-integration/commit/8fc68a88

master: 
https://github.com/droolsjbpm/droolsjbpm-integration/commit/07487cd4

Fully fixed.. Commits: 

6.0.x: 
https://github.com/droolsjbpm/droolsjbpm-integration/commit/8fc68a88
https://github.com/droolsjbpm/droolsjbpm-integration/commit/8d8466fe

master: 
https://github.com/droolsjbpm/droolsjbpm-integration/commit/07487cd4
https://github.com/droolsjbpm/droolsjbpm-integration/commit/82275228

This no longer has a target release of 6.0.0.

Verified in BPMS 6.0.1.ER1

Filed issues: BZ 1069568, BZ 1069622