topic Re: Problem with activiti-rest.war in Alfresco Archive

Problem with activiti-rest.war

wmfinamore — Thu, 11 Apr 2013 01:57:55 GMT

HiI tried to deploy the activiti-rest.war with the Tomcat7 but the application does not work. What i could make to fix the problem? I'm using the Activiti 5.12.Thanks

Re: Problem with activiti-rest.war

wmfinamore — Thu, 11 Apr 2013 02:13:26 GMT

INFO: Deploying web application archive C:\Java\Tomcat7\webapps\activiti-rest.war
10/04/2013 23:08:46 org.apache.catalina.core.StandardContext startInternal
GRAVE: Error listenerStart
10/04/2013 23:08:46 org.apache.catalina.core.StandardContext startInternal
GRAVE: Context [/activiti-rest] startup failed due to previous errors
10/04/2013 23:08:46 org.apache.catalina.loader.WebappClassLoader clearReferencesJdbc
GRAVE: The web application [/activiti-rest] registered the JDBC driver [org.h2.Driver] but failed to unregister it when the web application was stopped. To prevent a memory leak, the JDBC Driver has been forcibly unregistered.
10/04/2013 23:08:46 org.apache.catalina.loader.WebappClassLoader checkThreadLocalMapForLeaks
GRAVE: The web application [/activiti-rest] created a ThreadLocal with key of type [java.lang.ThreadLocal] (value [java.lang.ThreadLocal@7ed32f11]) and a value of type [org.apache.ibatis.executor.ErrorContext] (value [
### The error may exist in org/activiti/db/mapping/entity/EventSubscription.xml
### The error occurred while processing mapper_resultMap[compensateResultMap]]) but failed to remove it when the web application was stopped. Threads are going to be renewed over time to try and avoid a probable memory leak.

Re: Problem with activiti-rest.war

criszhao — Thu, 11 Apr 2013 04:23:35 GMT

You need to change your db config.
replace the file content of tomcatedir\webapps\activiti-rest\WEB-INF\classes\db.properties as below

db=h2
jdbc.driver=org.h2.Driver
jdbc.url=jdbc:h2:mem:activiti;DB_CLOSE_DELAY=1000
jdbc.username=sa
jdbc.password=

this will use default h2 database.

Re: Problem with activiti-rest.war

wmfinamore — Thu, 11 Apr 2013 13:34:02 GMT

CrisZhao

Was exactly what did you say!

Thanks

Re: Problem with activiti-rest.war

sarkar92 — Fri, 12 Apr 2013 09:54:45 GMT

I also get the same problem…but no solution…..

I tried the same thing below

db=h2
jdbc.driver=org.h2.Driver
jdbc.url=jdbc:h2:mem:activiti;DB_CLOSE_DELAY=1000
jdbc.username=sa
jdbc.password=

it solve the 404 error but now I get

Forbidden

Authentication is required

same user : kermit
and pass : kermit
i use for login in explorer but in rest it show authentication problem.

Re: Problem with activiti-rest.war

jbarrez — Mon, 15 Apr 2013 07:58:55 GMT

You can't go to the same H2 database in memory, the problem is that actually the REST app has a database which doesn't contain any users.

If you want to have shared state between the rest and explorer app, you'd need a persistent database (a H2 which works through TCP is also already good).

Re: Problem with activiti-rest.war

sarkar92 — Wed, 17 Apr 2013 13:59:05 GMT

thanks for reply….

can you please tell me how can I hared state between the rest and explorer app?? and also how can I persistent database for these??

Re: Problem with activiti-rest.war

jbarrez — Thu, 18 Apr 2013 11:46:33 GMT

Just install any supported database: postgres, mysql, … and update the db.properties accordingly as described in http://activiti.org/userguide/index.html#databaseConfiguration

Installing such a database will depend on your system.

Re: Problem with activiti-rest.war

b_schnarr — Fri, 29 Nov 2013 10:21:08 GMT

Lets say some of our processes contain java service tasks and we want to have shared state between the rest and explorer app, do we have to deploy process definitions or java service task classes multiple times for each web app? Or is it enough to deploy it one time because of the shared persistent database?

Re: Problem with activiti-rest.war

trademak — Fri, 29 Nov 2013 13:16:07 GMT

You have to include the Java classes on both classpaths. The process definitions can be deployed only once because of the shared database. You could also create one web application that includes the REST API and the Explorer classes.

Best regards,

Re: Problem with activiti-rest.war

b_schnarr — Fri, 29 Nov 2013 14:17:06 GMT

Thank you for your reply. I am new to activiti. Therefore, I don´t understand how to do this. As soon as I finished modelling my process in eclipse (with all classes and definitions), I´d like to deploy it in the activiti explorer. I thought that after that the deployment would be finished? How do I succeed in updating the classpath?

Thank you and best regards
Ben

Re: Problem with activiti-rest.war

frederikherema1 — Thu, 05 Dec 2013 09:34:53 GMT

Updating classpath depends on the container, but the best thing is to include the JAR in the activiti-explorer war, WEB-INF/lib…

Re: Problem with activiti-rest.war

b_schnarr — Sun, 08 Dec 2013 15:17:23 GMT

Ok, lets say that we define a new process with several java service tasks. We want that this process is available in the activiti explorer and via REST. For both, we´re using Tomcat and a shared MySQL-database. Maybe, I misunderstood your answer. When I want to deploy a new process with java service tasks, do I have to redeploy the activiti-explorer.war and the activiti-rest.war each time for every new process?

Thank ou for your reply.

Re: Problem with activiti-rest.war

jbarrez — Mon, 09 Dec 2013 09:18:53 GMT

What frederik means is that your custom classes (in a jar) need to be on the classpath of both containers (the container for explorer and for rest).

Re: Problem with activiti-rest.war

b_schnarr — Mon, 09 Dec 2013 14:21:25 GMT

Are there any tutorials? That would mean that I have to restart the container after each classpath-update? Maybe I got something wrong but I have the feeling that my deploment (shared state between both apps) is not a standard deployment? Because it sounds very complex to deploy new Process-Definitions in a way that they are available on both apps. What is if I used the same container for both apps, e.g. one Tomcat instance?

Re: Problem with activiti-rest.war

frederikherema1 — Tue, 10 Dec 2013 12:46:42 GMT

You can indeed use the same container for both apps… If you add the classes to the shared classpath, this might work if you also place the actviti-engine.jar on the shared classpath, or the classloading hierarchy will be broken.

Anyway, if you're using tomcat, you ALWAYS need to reboot the container of you add new entries to the classpath. This is the way it is, regardless if you're using Activiti or not…

Re: Problem with activiti-rest.war

b_schnarr — Tue, 10 Dec 2013 13:38:55 GMT

Thanks for your reply. Lets say we do not combine both apps but we use the same database for shared state. Now, we create a new process definition and deploy this new process via activiti explorer. All java classes involved will be copied to both lib folders (activiti explorer lib folder and rest lib folder). When I start a process instance, does this instance has the same state in both web apps? Lets say, I start the process instance via rest. After that, I interact with the next process step via activiti explorer. After that, I finish the next process step via rest again. Is this possible?

Re: Problem with activiti-rest.war

frederikherema1 — Wed, 11 Dec 2013 09:36:39 GMT

Yes, the state is persisted in the database, between wait-states. So starting process in explorer, completing a task in rest and completing another task in explorer is perfectly fine. It's also best to have only one job-executor active at the same time, or you can get exceptions when 2 of them try to lock the same job…

Re: Problem with activiti-rest.war

b_schnarr — Thu, 12 Dec 2013 10:42:00 GMT

Thanky for your reply. This is the answer is needed!! How do I achieve this (having only one job-executor active? )

Re: Problem with activiti-rest.war

frederikherema1 — Fri, 13 Dec 2013 07:32:02 GMT

In one of the two apps, set the property "jobExecutorActivate" to false in the activiti.cfg.xml OR in the applicationContext.xml.