Package org.drools.runtime.process

Examples of org.drools.runtime.process.WorkItemHandler

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      WorkItemInfo workItemInfo = GrailsIntegration
          .getGormDomainService().getWorkItemInfo(id);
        // work item may have been aborted
        if (workItemInfo != null) {
            WorkItem workItem = workItemInfo.getWorkItem(this.kruntime.getEnvironment());
            WorkItemHandler handler = workItemHandlers.get(workItem.getName());
            if (handler != null) {
                handler.abortWorkItem(workItem, this);
            } else {
                if ( workItems != null ) {
                    workItems.remove( id );
                    throw new WorkItemHandlerNotFoundException( "Could not find work item handler for " +
                            workItem.getName(),
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    this.workItemName = workItemName;
  }

    public Object execute(Context context) {
        StatefulKnowledgeSession ksession = ((KnowledgeCommandContext) context).getStatefulKnowledgesession();
        WorkItemHandler workItemHandler = null;
        try {
             Class t = Class.forName(handler);
             Constructor c = t.getConstructor(KnowledgeRuntime.class);
             workItemHandler =  (WorkItemHandler) c.newInstance(ksession);
        } catch (InstantiationException ex) {
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    }

    public void internalExecuteWorkItem(WorkItem workItem) {
        ((WorkItemImpl) workItem).setId(++workItemCounter);
        internalAddWorkItem(workItem);
        WorkItemHandler handler = this.workItemHandlers.get(workItem.getName());
        if (handler != null) {
            handler.executeWorkItem(workItem, this);
        } else throw new WorkItemHandlerNotFoundException( "Could not find work item handler for " + workItem.getName(),
                                                    workItem.getName() );
    }
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    public void internalAbortWorkItem(long id) {
        WorkItemImpl workItem = (WorkItemImpl) workItems.get(new Long(id));
        // work item may have been aborted
        if (workItem != null) {
            WorkItemHandler handler = this.workItemHandlers.get(workItem.getName());
            if (handler != null) {
                handler.abortWorkItem(workItem, this);
            } else {
                workItems.remove( workItem.getId() );
                throw new WorkItemHandlerNotFoundException( "Could not find work item handler for " + workItem.getName(),
                                                                 workItem.getName() );
            }
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        if (coverage != null) {
            workingMemory.addEventListener(coverage);
        }

        //Add stub Work Item Handlers
        WorkItemHandler workItemHandlerStub = getWorkItemHandlerStub();
        for (PortableWorkDefinition portableWorkDefinition : workItemService.loadWorkItemDefinitions(item.getUUID())) {
            workingMemory.getWorkItemManager().registerWorkItemHandler(
                    portableWorkDefinition.getName(),
                    workItemHandlerStub);
        }
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    //Creates a stub Work Item Handler that does nothing. A problem is that if the *real* Work Item Handler
    //sets a Result Parameter that is used in other rules the results of running the Test Scenario could (or
    //more likely would) be different than those expected. We can't use the *real* Work Item Handler as we
    //have no control what code it executes unless we look into using SecurityManagers...
    private WorkItemHandler getWorkItemHandlerStub() {
        return new WorkItemHandler() {

            public void executeWorkItem(WorkItem workItem,
                                        WorkItemManager manager) {
                //Does absolute nothing, however could log execution if needed
            }
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    }

  public void internalExecuteWorkItem(WorkItem workItem) {
      ((WorkItemImpl) workItem).setId(++workItemCounter);
      internalAddWorkItem(workItem);
      WorkItemHandler handler = (WorkItemHandler) this.workItemHandlers.get(workItem.getName());
      if (handler != null) {
          handler.executeWorkItem(workItem, this);
      } else {
          System.err.println("Could not find work item handler for " + workItem.getName());
      }
  }
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    public void internalAbortWorkItem(long id) {
        WorkItemImpl workItem = (WorkItemImpl) workItems.get(new Long(id));
        // work item may have been aborted
        if (workItem != null) {
            WorkItemHandler handler = (WorkItemHandler) this.workItemHandlers.get(workItem.getName());
            if (handler != null) {
                handler.abortWorkItem(workItem, this);
            } else {
                System.err.println("Could not find work item handler for " + workItem.getName());
            }
            workItems.remove(workItem.getId());
        }
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        if (coverage != null) {
            workingMemory.addEventListener(coverage);
        }

        //Add stub Work Item Handlers
        WorkItemHandler workItemHandlerStub = getWorkItemHandlerStub();
        for (PortableWorkDefinition portableWorkDefinition : serviceImplementation.loadWorkItemDefinitions(item.getUUID())) {
            workingMemory.getWorkItemManager().registerWorkItemHandler(portableWorkDefinition.getName(),
                    workItemHandlerStub);
        }
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    //Creates a stub Work Item Handler that does nothing. A problem is that if the *real* Work Item Handler
    //sets a Result Parameter that is used in other rules the results of running the Test Scenario could (or
    //more likely would) be different than those expected. We can't use the *real* Work Item Handler as we
    //have no control what code it executes unless we look into using SecurityManagers...
    private WorkItemHandler getWorkItemHandlerStub() {
        return new WorkItemHandler() {

            public void executeWorkItem(WorkItem workItem,
                                        WorkItemManager manager) {
                //Does absolute nothing, however could log execution if needed
            }
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Related Classes of org.drools.runtime.process.WorkItemHandler

  • org.drools.command.RegisterWorkItemHandlerTest
  • org.drools.examples.process.order.OrderExample
  • org.drools.examples.ruleflow.WorkItemExample
  • org.drools.gorm.processinstance.GormWorkItemManager
  • org.drools.grid.command.RegisterRemoteWorkItemHandlerCommand
  • org.drools.grid.internal.commands.RegisterRemoteWorkItemHandlerCommand
  • org.drools.grid.internal.commands.RegisterWorkItemHandlerRemoteCommand
  • org.drools.guvnor.server.RepositoryModuleService
  • org.drools.guvnor.server.RepositoryPackageService
  • org.drools.guvnor.server.TestScenarioServiceImplementation
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