How to read Workflow Definitions

[raarm]

Somebody help me…….I need to read workflow definitions….(taskID, status…)

I made this code(modified the sample FirstFoundationClient):


FirstFoundationClient.java

…..

private static NamespaceService namespaceService;
    private static WorkflowService ws;
    private static PersonService personService;
    static NodeRef content;
   static StartAdvancedWorkflow executewf = new StartAdvancedWorkflow();
       static ApplicationContext ctx;


public static void main(String[] args)
    {
        // initialise app content
       
       ctx = ApplicationContextHelper.getApplicationContext();
       namespaceService = (NamespaceService) ctx.getBean("namespaceService");
       personService = (PersonService)ctx.getBean("personService");
       
       
              
       // get registry of services
        final ServiceRegistry serviceRegistry = (ServiceRegistry) ctx.getBean(ServiceRegistry.SERVICE_REGISTRY);
        
        // use TransactionWork to wrap service calls in a user transaction
        TransactionService transactionService = serviceRegistry.getTransactionService();
        RetryingTransactionCallback<Object> exampleWork = new RetryingTransactionCallback<Object>()
        {
            public Object execute() throws Exception
            {
                doExample(serviceRegistry);
                               return null;
            }
        };
        transactionService.getRetryingTransactionHelper().doInTransaction(exampleWork);
        executewf.testExecution(ctx, namespaceService, personService, content);
        System.exit(0);
    }

public static void doExample(ServiceRegistry serviceRegistry) throws Exception
    {
       //
        // authenticate
       //
        AuthenticationService authenticationService = serviceRegistry.getAuthenticationService();
        authenticationService.authenticate("admin", "admin".toCharArray());
        
        //
        // locate the company home node
        //
        SearchService searchService = serviceRegistry.getSearchService();
        StoreRef storeRef = new StoreRef(StoreRef.PROTOCOL_WORKSPACE, "SpacesStore");
        ResultSet resultSet = searchService.query(storeRef, SearchService.LANGUAGE_LUCENE, "PATH:\"/app:company_home\"");
        NodeRef companyHome = resultSet.getNodeRef(0);
        
        //
        // create new content node within company home
        //
        
        // assign name
        String name = "Foundation API sample (" + System.currentTimeMillis() + ")";
        Map<QName, Serializable> contentProps = new HashMap<QName, Serializable>();
        contentProps.put(ContentModel.PROP_NAME, name);

        // create content node
        NodeService nodeService = serviceRegistry.getNodeService();
        ChildAssociationRef association = nodeService.createNode(companyHome, 
              ContentModel.ASSOC_CONTAINS, 
              QName.createQName(NamespaceService.CONTENT_MODEL_PREFIX, name),
                ContentModel.TYPE_CONTENT,
                contentProps);
        content = association.getChildRef();
        
        // add titled aspect (for Web Client display)
        Map<QName, Serializable> titledProps = new HashMap<QName, Serializable>();
        titledProps.put(ContentModel.PROP_TITLE, name);
        titledProps.put(ContentModel.PROP_DESCRIPTION, name);
        nodeService.addAspect(content, ContentModel.ASPECT_TITLED, titledProps);
       
        //
        // write some content to new node
        //

        ContentService contentService = serviceRegistry.getContentService();
        ContentWriter writer = contentService.getWriter(content, ContentModel.PROP_CONTENT, true);
        writer.setMimetype(MimetypeMap.MIMETYPE_TEXT_PLAIN);
        writer.setEncoding("UTF-8");
        String text = "The quick brown fox jumps over the lazy dog";
        writer.putContent(text);
       
    }‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍

StartAdvancedWorkflow.java

…..

public static void testExecution(ApplicationContext ctx, NamespaceService namespaceService,PersonService personService , NodeRef nodeRef)
    {
        // Execute the action
       executer = (StartWorkflowActionExecuter)ctx.getBean(StartWorkflowActionExecuter.NAME);   
        ActionImpl action = new ActionImpl(null, GUID.generate() , StartWorkflowActionExecuter.NAME, null);
        action.setParameterValue(StartWorkflowActionExecuter.PARAM_WORKFLOW_NAME, "jbpm$wf:review");
         action.setParameterValue(WorkflowModel.PROP_WORKFLOW_DUE_DATE.toPrefixString(namespaceService), new Date());
        NodeRef reviewer = personService.getPerson("admin");
        action.setParameterValue(WorkflowModel.ASSOC_ASSIGNEE.toPrefixString(namespaceService), reviewer);
        
        executer.execute(action, nodeRef);
           }
    

}‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍

Thanks!

[raarm]

I initialized the workflowService in doExample……using serviceRegistry!

workflowService = serviceRegistry.getWorkflowService();‍

So now……I can use this in StartAdvancedWorkflow.java:

public static void testExecution(WorkflowService workflowService, ApplicationContext ctx, NamespaceService namespaceService,PersonService personService , NodeRef nodeRef)
{
…
               String workflowName = (String)action.getParameterValue(StartWorkflowActionExecuter.PARAM_WORKFLOW_NAME);
           WorkflowDefinition def = workflowService.getDefinitionByName(workflowName);
           System.out.println("\nWorkflowDefinitions: "+def);
           System.out.println("\nName                WorkflowDefinition = " + def.name); 
           System.out.println("Description         WorkflowDefinition = " + def.description); 
           System.out.println("Id                  WorkflowDefinition = " + def.id); 
           System.out.println("Title               WorkflowDefinition = " + def.title); 
           System.out.println("Version             WorkflowDefinition = " + def.version);
           System.out.println("StartTaskDefinition WorkflowDefinition = " + def.startTaskDefinition);
}
           ‍‍‍‍‍‍‍‍‍‍‍‍‍‍

Thanks…… 😎