/**
* @param principal the user principal representing the desired user
* @param name the name of the workflow to create.
* @param actionId the ID of the initial action
* @param inputs the inputs to the workflow
* @return a WorkflowVO representing the newly created workflow instance
* @throws SystemException if an error occurs while initiaizing the workflow
*/
public WorkflowVO initializeWorkflow(
InfoGluePrincipal principal, String name, int actionId, Map inputs) throws SystemException {
WorkflowVO workflowVO = null;
try {
Session session = null;
net.sf.hibernate.Transaction tx = null;
try {
session = hibernateSessionFactory.openSession();
tx = session.beginTransaction();
if (getIsAccessApproved(name, principal)) {
WorkflowFacade wf =
new WorkflowFacade(
principal, name, actionId, inputs, hibernateSessionFactory, session);
workflowVO = wf.createWorkflowVO();
session.flush();
tx.commit();
} else {
throw new Bug("You are not allowed to create " + name + " workflows.");
}
} catch (Exception e) {
logger.error(
"An error occurred when we tries to run initializeWorkflow():" + e.getMessage(), e);
try {
tx.rollback();
} catch (HibernateException he) {
logger.error(
"An error occurred when we tries to rollback transaction:" + he.getMessage(), he);
}
restoreSessionFactory(e);
} finally {
try {
session.close();
} catch (HibernateException e) {
logger.error("An error occurred when we tries to close:" + e.getMessage(), e);
}
}
} catch (Exception e) {
throw new SystemException(e);
}
return workflowVO;
}
/**
* Invokes an action on a workflow for a given user and request
*
* @param principal the user principal
* @param workflowId the ID of the desired workflow
* @param actionId the ID of the desired action
* @param inputs the inputs to the workflow
* @return a WorkflowVO representing the current state of the workflow identified by workflowId
* @throws WorkflowException if a workflow error occurs
*/
public WorkflowVO invokeAction(
InfoGluePrincipal principal, long workflowId, int actionId, Map inputs)
throws WorkflowException {
WorkflowVO workflowVO = null;
Session session = null;
net.sf.hibernate.Transaction tx = null;
try {
session = hibernateSessionFactory.openSession();
tx = session.beginTransaction();
WorkflowFacade wf =
new WorkflowFacade(principal, workflowId, hibernateSessionFactory, session);
wf.doAction(actionId, inputs);
session.flush();
tx.commit();
} catch (Exception e) {
logger.error(
"An error occurred when we tries to execute invokeAction():" + e.getMessage(), e);
try {
tx.rollback();
} catch (HibernateException he) {
logger.error(
"An error occurred when we tries to rollback transaction:" + he.getMessage(), he);
}
restoreSessionFactory(e);
} finally {
try {
session.close();
} catch (HibernateException e) {
logger.error("An error occurred when we tries to close session:" + e.getMessage(), e);
}
}
try {
session = hibernateSessionFactory.openSession();
tx = session.beginTransaction();
WorkflowFacade wf =
new WorkflowFacade(principal, workflowId, hibernateSessionFactory, session);
workflowVO = wf.createWorkflowVO();
session.flush();
tx.commit();
} catch (Exception e) {
logger.error(
"An error occurred when we tries to execute invokeAction():" + e.getMessage(), e);
try {
tx.rollback();
} catch (HibernateException he) {
logger.error(
"An error occurred when we tries to rollback transaction:" + he.getMessage(), he);
}
restoreSessionFactory(e);
} finally {
try {
session.close();
} catch (HibernateException e) {
logger.error("An error occurred when we tries to close session:" + e.getMessage(), e);
}
}
return workflowVO;
}