/**
* The contents of this file are subject to the license and copyright
* detailed in the LICENSE and NOTICE files at the root of the source
* tree and available online at
*
* http://www.dspace.org/license/
*/
package org.dspace.xmlworkflow;
import org.dspace.authorize.AuthorizeException;
import org.dspace.core.Context;
import org.dspace.eperson.EPerson;
import org.dspace.xmlworkflow.state.Step;
import org.dspace.xmlworkflow.state.Workflow;
import org.dspace.xmlworkflow.storedcomponents.*;
import org.dspace.xmlworkflow.storedcomponents.XmlWorkflowItem;
import java.io.IOException;
import java.sql.SQLException;
import java.util.List;
/**
* A class that contains utililty methods related to the workflow
* The adding/removing from claimed users and ensuring that
* if multiple users have to perform these steps that a count is kept
* so that no more then the allowed user count are allowed to perform their actions
*
* @author Bram De Schouwer (bram.deschouwer at dot com)
* @author Kevin Van de Velde (kevin at atmire dot com)
* @author Ben Bosman (ben at atmire dot com)
* @author Mark Diggory (markd at atmire dot com)
*/
public class WorkflowRequirementsManager {
public static final String WORKFLOW_SCHEMA = "workflow";
/**
* Adds a claimed user in the metadata
* if enough users have claimed this task (claimed or finished) to meet the required number
* the pooled tasks will be deleted
* @param c the dspace context
* @param wfi the workflow item
* @param step the step for which we are accepting
* @param user the current user
* @throws SQLException ...
* @throws AuthorizeException ...
* @throws IOException ...
*/
public static void addClaimedUser(Context c, XmlWorkflowItem wfi, Step step, EPerson user) throws SQLException, AuthorizeException, IOException {
//Make sure we delete the pooled task for our current user if the task is not a group pooltask
PoolTask task = PoolTask.findByWorkflowIdAndEPerson(c,wfi.getID(),user.getID());
if(task != null && task.getEpersonID() >= 0){
XmlWorkflowManager.deletePooledTask(c, wfi, task);
}
InProgressUser ipu = InProgressUser.create(c);
ipu.setWorkflowItemID(wfi.getID());
ipu.setUserID(user.getID());
ipu.setFinished(false);
ipu.update();
int totalUsers = InProgressUser.getNumberOfInProgressUsers(c, wfi.getID()) + InProgressUser.getNumberOfFinishedUsers(c, wfi.getID());
if(totalUsers == step.getRequiredUsers()){
//If enough users have claimed/finished this step then remove the tasks
XmlWorkflowManager.deleteAllPooledTasks(c, wfi);
}
wfi.update();
}
public static void removeClaimedUser(Context c, XmlWorkflowItem wfi, EPerson user, String stepID) throws SQLException, IOException, WorkflowConfigurationException, AuthorizeException {
//Check if we had reached our max number @ this moment
int totalUsers = InProgressUser.getNumberOfInProgressUsers(c, wfi.getID()) + InProgressUser.getNumberOfFinishedUsers(c, wfi.getID());
//Then remove the current user from the inProgressUsers
InProgressUser.findByWorkflowItemAndEPerson(c, wfi.getID(), user.getID()).delete();
Workflow workflow = WorkflowFactory.getWorkflow(wfi.getCollection());
Step step = workflow.getStep(stepID);
// WorkflowManager.deleteOwnedTask(c, user, wfi, step, step.getActionConfig());
//We had reached our total user, so recreate tasks for the user who don't have one
if(totalUsers == step.getRequiredUsers()){
//Create a list of the users we are to ignore
List<InProgressUser> toIgnore = InProgressUser.findByWorkflowItem(c, wfi.getID());
//Remove the users to ignore
RoleMembers roleMembers = step.getRole().getMembers(c, wfi);
//Create a list out all the users we are to pool a task for
for (InProgressUser ipu: toIgnore) {
roleMembers.removeEperson(ipu.getUserID());
}
step.getUserSelectionMethod().getProcessingAction().regenerateTasks(c, wfi, roleMembers);
}else{
//If the user previously had a personal PoolTask, this must be regenerated. Therefore we call the regeneration method
//with only one EPerson
RoleMembers role = step.getRole().getMembers(c, wfi);
List<EPerson> epersons = role.getEPersons();
for(EPerson eperson: epersons){
if(eperson.getID() == user.getID()){
RoleMembers memberToRegenerateTasksFor = new RoleMembers();
memberToRegenerateTasksFor.addEPerson(user);
step.getUserSelectionMethod().getProcessingAction().regenerateTasks(c, wfi, memberToRegenerateTasksFor);
break;
}
}
}
//Update our item
wfi.getItem().update();
}
/**
* Adds a finished user in the metadata
* this method will also remove the user from the inprogress metadata
* @param c the dspace context
* @param wfi the workflow item
* @param user the current user
* @throws AuthorizeException ...
* @throws SQLException ...
*/
public static void addFinishedUser(Context c, XmlWorkflowItem wfi, EPerson user) throws AuthorizeException, SQLException {
InProgressUser ipu = InProgressUser.findByWorkflowItemAndEPerson(c, wfi.getID(), user.getID());
ipu.setFinished(true);
ipu.update();
}
public static void clearInProgressUsers(Context c, XmlWorkflowItem wfi) throws AuthorizeException, SQLException {
List<InProgressUser> ipus = InProgressUser.findByWorkflowItem(c, wfi.getID());
for(InProgressUser ipu: ipus){
ipu.delete();
}
}
}