[jboss-user] [jBPM] - jBPM 4 - Deploy only if ProcessDefinition changed or new

rapa [http://community.jboss.org/people/rapa] created the discussion "jBPM 4 - Deploy only if ProcessDefinition changed or new" To view the discussion, visit: http://community.jboss.org/message/570056#570056 -------------------------------------------------------------- Hi, I successfully integrated jBPM 4.4 with Seam 2.2, running on JBoss 4.2. In my overridden Jbpm class I deploy all process definitions, which are got from the components.xml    <bpm:jbpm>         <bpm:process-definitions>             <value>bpm/processdefinitions/process_1.jpdl.xml</value>             <value>bpm/processdefinitions/process_2.jpdl.xml</value>             <value>bpm/processdefinitions/process_3.jpdl.xml</value>        </bpm:process-definitions>     </bpm:jbpm>     <bpm:jbpm>         <bpm:process-definitions>             <value>bpm/processdefinitions/partner_registration.jpdl.xml</value>         </bpm:process-definitions>     </bpm:jbpm> The process definitions file paths (resource names) are automatically injected in the String[] processDefinitions array (see Jbpm class) By having all file paths it is easy to deploy  the process definitions through the repository service, but I would like to avoid to deploy them each time I restart my application server. What I would like to do is to deploy my process definitions only if the xml file is new or has been modified since it's last deployment. The idea is simple: I just compare the last deployed process definition's xml content with the one of the current process definition. There is a method in the repository service that allows to get the deployed process definition's xml content repositoryService.getResourceAsStream(deploymentId, resourceName); I see that the jbpm4_lob table is the one that contains all the required data (resource_names, deployment_ids, xml files contents), so there must be a way to retrieve what I need. The problem is that I looked into the jbpm 4.4 api and I don't see any way to retrieve the highest deploymentId for a given resource name. The only way is to use the process definition key or name, but I would have to map these manually somewhere to their resource name or parse the xml files, which would be very nasty and I absolutely want to avoid that. Here is the code of my Jbpm class. @Name("jbpm") @Scope(ScopeType.APPLICATION) @AutoCreate @Startup @BypassInterceptors @Install(precedence = Install.APPLICATION) public class Jbpm extends SeamComponent {           @Getter     private ProcessEngine processEngine;     @Getter @Setter     private String[] processDefinitions;         @Create     public void init() {        // ...          deployProcessDefinitions();          // ...     }      /**      * Deploys all changed or new process definitions.      */     private void deployProcessDefinitions() {               RepositoryService repositoryService = this.processEngine.getRepositoryService();       for (String processDefinition : this.processDefinitions) {              // deploy d only if new or it has changed            if(isNewOrChanged(processDefinition)) {               NewDeployment d = repositoryService.createDeployment()                                     .addResourceFromClasspath(processDefinition);               String newDeploymentId = d.deploy();            }         }         private String isNewOrChanged(processDefinition) {             // how to get deploymentId???             InputStream is = repositoryService.getResourceAsStream(deploymentId, processDefinition);           String xml = convertStreamToString(is);             // ...       }   Anyone has a solution for this? Thanks, cheers! -------------------------------------------------------------- Reply to this message by going to Community [http://community.jboss.org/message/570056#570056] Start a new discussion in jBPM at Community [http://community.jboss.org/choose-container!input.jspa?contentType=1&...]