/*
* Claims an action for a given eperson
*/
@Override
public void createOwnedTask(
Context context, XmlWorkflowItem wi, Step step, WorkflowActionConfig action, EPerson e)
throws SQLException, AuthorizeException {
ClaimedTask task = claimedTaskService.create(context);
task.setWorkflowItem(wi);
task.setStepID(step.getId());
task.setActionID(action.getId());
task.setOwner(e);
task.setWorkflowID(step.getWorkflow().getID());
claimedTaskService.update(context, task);
// Make sure this user has a task
grantUserAllItemPolicies(context, wi.getItem(), e);
}
@Override
public void deleteClaimedTask(Context c, XmlWorkflowItem wi, ClaimedTask task)
throws SQLException, AuthorizeException {
if (task != null) {
removeUserItemPolicies(c, wi.getItem(), task.getOwner());
claimedTaskService.delete(c, task);
}
}
/**
* Deletes all tasks from this workflowflowitem
*
* @param context the dspace context
* @param wi the workflow item for which we are to delete the tasks
* @throws SQLException An exception that provides information on a database access error or other
* errors.
* @throws AuthorizeException Exception indicating the current user of the context does not have
* permission to perform a particular action.
*/
@Override
public void deleteAllTasks(Context context, XmlWorkflowItem wi)
throws SQLException, AuthorizeException {
deleteAllPooledTasks(context, wi);
Iterator<ClaimedTask> allClaimedTasks =
claimedTaskService.findByWorkflowItem(context, wi).iterator();
while (allClaimedTasks.hasNext()) {
ClaimedTask task = allClaimedTasks.next();
allClaimedTasks.remove();
deleteClaimedTask(context, wi, task);
}
}
@Override
public List<String> getEPersonDeleteConstraints(Context context, EPerson ePerson)
throws SQLException {
List<String> constraints = new ArrayList<String>();
if (CollectionUtils.isNotEmpty(claimedTaskService.findByEperson(context, ePerson))) {
constraints.add("cwf_claimtask");
}
if (CollectionUtils.isNotEmpty(poolTaskService.findByEPerson(context, ePerson))) {
constraints.add("cwf_pooltask");
}
if (CollectionUtils.isNotEmpty(workflowItemRoleService.findByEPerson(context, ePerson))) {
constraints.add("cwf_workflowitemrole");
}
return constraints;
}
@Override
public WorkspaceItem sendWorkflowItemBackSubmission(
Context context, XmlWorkflowItem wi, EPerson e, String provenance, String rejection_message)
throws SQLException, AuthorizeException, IOException {
String workflowID = null;
String currentStepId = null;
String currentActionConfigId = null;
ClaimedTask claimedTask = claimedTaskService.findByWorkflowIdAndEPerson(context, wi, e);
if (claimedTask != null) {
// Log it
workflowID = claimedTask.getWorkflowID();
currentStepId = claimedTask.getStepID();
currentActionConfigId = claimedTask.getActionID();
}
context.turnOffAuthorisationSystem();
// rejection provenance
Item myitem = wi.getItem();
// Get current date
String now = DCDate.getCurrent().toString();
// Get user's name + email address
String usersName = getEPersonName(e);
// Here's what happened
String provDescription =
provenance
+ " Rejected by "
+ usersName
+ ", reason: "
+ rejection_message
+ " on "
+ now
+ " (GMT) ";
// Add to item as a DC field
itemService.addMetadata(
context,
myitem,
MetadataSchema.DC_SCHEMA,
"description",
"provenance",
"en",
provDescription);
// Clear any workflow schema related metadata
itemService.clearMetadata(
context, myitem, WorkflowRequirementsService.WORKFLOW_SCHEMA, Item.ANY, Item.ANY, Item.ANY);
itemService.update(context, myitem);
// convert into personal workspace
WorkspaceItem wsi = returnToWorkspace(context, wi);
// notify that it's been rejected
notifyOfReject(context, wi, e, rejection_message);
log.info(
LogManager.getHeader(
context,
"reject_workflow",
"workflow_item_id="
+ wi.getID()
+ "item_id="
+ wi.getItem().getID()
+ "collection_id="
+ wi.getCollection().getID()
+ "eperson_id="
+ e.getID()));
logWorkflowEvent(context, workflowID, currentStepId, currentActionConfigId, wi, e, null, null);
context.restoreAuthSystemState();
return wsi;
}
protected void logWorkflowEvent(
Context c,
String workflowId,
String previousStepId,
String previousActionConfigId,
XmlWorkflowItem wfi,
EPerson actor,
Step newStep,
WorkflowActionConfig newActionConfig)
throws SQLException {
try {
// Fire an event so we can log our action !
Item item = wfi.getItem();
Collection myCollection = wfi.getCollection();
String workflowStepString = null;
List<EPerson> currentEpersonOwners = new ArrayList<EPerson>();
List<Group> currentGroupOwners = new ArrayList<Group>();
// These are only null if our item is sent back to the submission
if (newStep != null && newActionConfig != null) {
workflowStepString = workflowId + "." + newStep.getId() + "." + newActionConfig.getId();
// Retrieve the current owners of the task
List<ClaimedTask> claimedTasks = claimedTaskService.find(c, wfi, newStep.getId());
List<PoolTask> pooledTasks = poolTaskService.find(c, wfi);
for (PoolTask poolTask : pooledTasks) {
if (poolTask.getEperson() != null) {
currentEpersonOwners.add(poolTask.getEperson());
} else {
currentGroupOwners.add(poolTask.getGroup());
}
}
for (ClaimedTask claimedTask : claimedTasks) {
currentEpersonOwners.add(claimedTask.getOwner());
}
}
String previousWorkflowStepString = null;
if (previousStepId != null && previousActionConfigId != null) {
previousWorkflowStepString =
workflowId + "." + previousStepId + "." + previousActionConfigId;
}
// Fire our usage event !
UsageWorkflowEvent usageWorkflowEvent =
new UsageWorkflowEvent(
c, item, wfi, workflowStepString, previousWorkflowStepString, myCollection, actor);
usageWorkflowEvent.setEpersonOwners(
currentEpersonOwners.toArray(new EPerson[currentEpersonOwners.size()]));
usageWorkflowEvent.setGroupOwners(
currentGroupOwners.toArray(new Group[currentGroupOwners.size()]));
DSpaceServicesFactory.getInstance().getEventService().fireEvent(usageWorkflowEvent);
} catch (Exception e) {
// Catch all errors we do not want our workflow to crash because the logging threw an
// exception
log.error(
LogManager.getHeader(
c, "Error while logging workflow event", "Workflow Item: " + wfi.getID()),
e);
}
}
@Override
public WorkflowActionConfig processOutcome(
Context c,
EPerson user,
Workflow workflow,
Step currentStep,
WorkflowActionConfig currentActionConfig,
ActionResult currentOutcome,
XmlWorkflowItem wfi,
boolean enteredNewStep)
throws IOException, AuthorizeException, SQLException, WorkflowException {
if (currentOutcome.getType() == ActionResult.TYPE.TYPE_PAGE
|| currentOutcome.getType() == ActionResult.TYPE.TYPE_ERROR) {
// Our outcome is a page or an error, so return our current action
c.restoreAuthSystemState();
return currentActionConfig;
} else if (currentOutcome.getType() == ActionResult.TYPE.TYPE_CANCEL
|| currentOutcome.getType() == ActionResult.TYPE.TYPE_SUBMISSION_PAGE) {
// We either pressed the cancel button or got an order to return to the submission page, so
// don't return an action
// By not returning an action we ensure ourselfs that we go back to the submission page
c.restoreAuthSystemState();
return null;
} else if (currentOutcome.getType() == ActionResult.TYPE.TYPE_OUTCOME) {
Step nextStep = null;
WorkflowActionConfig nextActionConfig = null;
try {
// We have completed our action search & retrieve the next action
if (currentOutcome.getResult() == ActionResult.OUTCOME_COMPLETE) {
nextActionConfig = currentStep.getNextAction(currentActionConfig);
}
if (nextActionConfig != null) {
// We remain in the current step since an action is found
nextStep = currentStep;
nextActionConfig.getProcessingAction().activate(c, wfi);
if (nextActionConfig.requiresUI() && !enteredNewStep) {
createOwnedTask(c, wfi, currentStep, nextActionConfig, user);
return nextActionConfig;
} else if (nextActionConfig.requiresUI() && enteredNewStep) {
// We have entered a new step and have encountered a UI, return null since the current
// user doesn't have anything to do with this
c.restoreAuthSystemState();
return null;
} else {
ActionResult newOutcome =
nextActionConfig.getProcessingAction().execute(c, wfi, currentStep, null);
return processOutcome(
c, user, workflow, currentStep, nextActionConfig, newOutcome, wfi, enteredNewStep);
}
} else if (enteredNewStep) {
// If the user finished his/her step, we keep processing until there is a UI step action
// or no step at all
nextStep = workflow.getNextStep(c, wfi, currentStep, currentOutcome.getResult());
c.turnOffAuthorisationSystem();
nextActionConfig = processNextStep(c, user, workflow, currentOutcome, wfi, nextStep);
// If we require a user interface return null so that the user is redirected to the
// "submissions page"
if (nextActionConfig == null || nextActionConfig.requiresUI()) {
return null;
} else {
return nextActionConfig;
}
} else {
ClaimedTask task = claimedTaskService.findByWorkflowIdAndEPerson(c, wfi, user);
// Check if we have a task for this action (might not be the case with automatic steps)
// First add it to our list of finished users, since no more actions remain
workflowRequirementsService.addFinishedUser(c, wfi, user);
c.turnOffAuthorisationSystem();
// Check if our requirements have been met
if ((currentStep.isFinished(c, wfi)
&& currentOutcome.getResult() == ActionResult.OUTCOME_COMPLETE)
|| currentOutcome.getResult() != ActionResult.OUTCOME_COMPLETE) {
// Delete all the table rows containing the users who performed this task
workflowRequirementsService.clearInProgressUsers(c, wfi);
// Remove all the tasks
deleteAllTasks(c, wfi);
nextStep = workflow.getNextStep(c, wfi, currentStep, currentOutcome.getResult());
nextActionConfig = processNextStep(c, user, workflow, currentOutcome, wfi, nextStep);
// If we require a user interface return null so that the user is redirected to the
// "submissions page"
if (nextActionConfig == null || nextActionConfig.requiresUI()) {
return null;
} else {
return nextActionConfig;
}
} else {
// We are done with our actions so go to the submissions page but remove action
// ClaimedAction first
deleteClaimedTask(c, wfi, task);
c.restoreAuthSystemState();
nextStep = currentStep;
nextActionConfig = currentActionConfig;
return null;
}
}
} catch (Exception e) {
log.error("error while processing workflow outcome", e);
e.printStackTrace();
} finally {
if ((nextStep != null && currentStep != null && nextActionConfig != null)
|| (wfi.getItem().isArchived() && currentStep != null)) {
logWorkflowEvent(
c,
currentStep.getWorkflow().getID(),
currentStep.getId(),
currentActionConfig.getId(),
wfi,
user,
nextStep,
nextActionConfig);
}
}
}
log.error(LogManager.getHeader(c, "Invalid step outcome", "Workflow item id: " + wfi.getID()));
throw new WorkflowException("Invalid step outcome");
}