Source code

001/*
002 * (C) Copyright 2012 Nuxeo SA (http://nuxeo.com/) and others.
003 *
004 * Licensed under the Apache License, Version 2.0 (the "License");
005 * you may not use this file except in compliance with the License.
006 * You may obtain a copy of the License at
007 *
008 *     http://www.apache.org/licenses/LICENSE-2.0
009 *
010 * Unless required by applicable law or agreed to in writing, software
011 * distributed under the License is distributed on an "AS IS" BASIS,
012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 * See the License for the specific language governing permissions and
014 * limitations under the License.
015 *
016 * Contributors:
017 *    Mariana Cedica
018 *
019 * $Id$
020 */
021package org.nuxeo.ecm.platform.routing.web;
022
023import static org.jboss.seam.ScopeType.CONVERSATION;
024
025import java.io.Serializable;
026import java.text.ParseException;
027import java.text.SimpleDateFormat;
028import java.util.ArrayList;
029import java.util.Collections;
030import java.util.Date;
031import java.util.HashMap;
032import java.util.HashSet;
033import java.util.LinkedHashMap;
034import java.util.List;
035import java.util.Map;
036import java.util.Set;
037
038import javax.faces.application.FacesMessage;
039import javax.faces.component.EditableValueHolder;
040import javax.faces.component.UIComponent;
041import javax.faces.context.FacesContext;
042import javax.faces.validator.ValidatorException;
043
044import org.apache.commons.lang3.StringUtils;
045import org.apache.commons.logging.Log;
046import org.apache.commons.logging.LogFactory;
047import org.jboss.seam.annotations.In;
048import org.jboss.seam.annotations.Name;
049import org.jboss.seam.annotations.Observer;
050import org.jboss.seam.annotations.Scope;
051import org.jboss.seam.annotations.intercept.BypassInterceptors;
052import org.jboss.seam.annotations.web.RequestParameter;
053import org.jboss.seam.core.Events;
054import org.jboss.seam.faces.FacesMessages;
055import org.jboss.seam.international.StatusMessage;
056import org.nuxeo.ecm.core.api.CoreSession;
057import org.nuxeo.ecm.core.api.DocumentModel;
058import org.nuxeo.ecm.core.api.DocumentNotFoundException;
059import org.nuxeo.ecm.core.api.IdRef;
060import org.nuxeo.ecm.core.api.NuxeoException;
061import org.nuxeo.ecm.core.api.UnrestrictedSessionRunner;
062import org.nuxeo.ecm.core.api.security.SecurityConstants;
063import org.nuxeo.ecm.platform.actions.Action;
064import org.nuxeo.ecm.platform.actions.ActionContext;
065import org.nuxeo.ecm.platform.actions.ejb.ActionManager;
066import org.nuxeo.ecm.platform.contentview.seam.ContentViewActions;
067import org.nuxeo.ecm.platform.forms.layout.api.LayoutDefinition;
068import org.nuxeo.ecm.platform.forms.layout.service.WebLayoutManager;
069import org.nuxeo.ecm.platform.routing.api.DocumentRoutingConstants;
070import org.nuxeo.ecm.platform.routing.api.DocumentRoutingService;
071import org.nuxeo.ecm.platform.routing.api.exception.DocumentRouteException;
072import org.nuxeo.ecm.platform.routing.core.impl.GraphNode;
073import org.nuxeo.ecm.platform.routing.core.impl.GraphNode.Button;
074import org.nuxeo.ecm.platform.routing.core.impl.GraphRoute;
075import org.nuxeo.ecm.platform.task.Task;
076import org.nuxeo.ecm.platform.task.TaskEventNames;
077import org.nuxeo.ecm.platform.task.TaskImpl;
078import org.nuxeo.ecm.platform.ui.web.api.NavigationContext;
079import org.nuxeo.ecm.platform.ui.web.util.ComponentUtils;
080import org.nuxeo.ecm.webapp.action.ActionContextProvider;
081import org.nuxeo.ecm.webapp.documentsLists.DocumentsListsManager;
082import org.nuxeo.ecm.webapp.helpers.EventNames;
083import org.nuxeo.runtime.api.Framework;
084
085/**
086 * Task validators
087 *
088 * @since 5.6
089 */
090@Scope(CONVERSATION)
091@Name("routingTaskActions")
092public class RoutingTaskActionsBean implements Serializable {
093
094    private static final long serialVersionUID = 1L;
095
096    private static final Log log = LogFactory.getLog(RoutingTaskActionsBean.class);
097
098    public static final String SUBJECT_PATTERN = "([a-zA-Z_0-9]*(:)[a-zA-Z_0-9]*)";
099
100    /**
101     * Runtime property name, that makes it possible to cache actions available on a given task, depending on its type.
102     * <p>
103     * This caching is global to all tasks in the platform, and will not work correctly if some tasks are filtering some
104     * actions depending on local variables, for instance.
105     *
106     * @since 5.7
107     */
108    public static final String CACHE_ACTIONS_PER_TASK_TYPE_PROP_NAME = "org.nuxeo.routing.cacheActionsPerTaskType";
109
110    @In(create = true, required = false)
111    protected transient CoreSession documentManager;
112
113    @In(required = true, create = true)
114    protected NavigationContext navigationContext;
115
116    @In(create = true, required = false)
117    protected FacesMessages facesMessages;
118
119    @In(create = true)
120    protected Map<String, String> messages;
121
122    @In(create = true)
123    protected transient DocumentsListsManager documentsListsManager;
124
125    @In(create = true, required = false)
126    protected transient ActionContextProvider actionContextProvider;
127
128    @In(create = true, required = false)
129    protected ContentViewActions contentViewActions;
130
131    @RequestParameter("button")
132    protected String button;
133
134    protected ActionManager actionService;
135
136    protected Map<String, TaskInfo> tasksInfoCache = new HashMap<String, TaskInfo>();
137
138    protected Task currentTask;
139
140    public void validateTaskDueDate(FacesContext context, UIComponent component, Object value) {
141        final String DATE_FORMAT = "dd/MM/yyyy";
142        SimpleDateFormat dateFormat = new SimpleDateFormat(DATE_FORMAT);
143
144        String messageString = null;
145        if (value != null) {
146            try {
147                Date dueDate = dateFormat.parse(dateFormat.format((Date) value));
148                Date today = dateFormat.parse(dateFormat.format(new Date()));
149                if (dueDate.before(today)) {
150                    messageString = "label.workflow.error.outdated_duedate";
151                }
152            } catch (ParseException e) {
153                messageString = "label.workflow.error.date_parsing";
154            }
155        }
156
157        if (messageString != null) {
158            FacesMessage message = new FacesMessage(FacesMessage.SEVERITY_ERROR, ComponentUtils.translate(context,
159                    "label.workflow.error.outdated_duedate"), null);
160            ((EditableValueHolder) component).setValid(false);
161            context.addMessage(component.getClientId(context), message);
162        }
163    }
164
165    public void validateSubject(FacesContext context, UIComponent component, Object value) {
166        if (!((value instanceof String) && ((String) value).matches(SUBJECT_PATTERN))) {
167            FacesMessage message = new FacesMessage(FacesMessage.SEVERITY_ERROR, ComponentUtils.translate(context,
168                    "label.document.routing.invalid.subject"), null);
169            context.addMessage(null, message);
170            throw new ValidatorException(message);
171        }
172    }
173
174    public String getTaskLayout(Task task) {
175        return getTaskInfo(task, true).layout;
176    }
177
178    public List<Action> getTaskButtons(Task task) {
179        List<Button> buttons = getTaskInfo(task, true).buttons;
180        List<Action> actions = new ArrayList<Action>();
181
182        DocumentModel workflowInstance = documentManager.getDocument(new IdRef(task.getProcessId()));
183        GraphRoute workflow = workflowInstance.getAdapter(GraphRoute.class);
184        if (workflow == null) {
185            // task was not created by a workflow process , no actions to
186            // display;
187            return actions;
188        }
189        GraphNode node = workflow.getNode(task.getType());
190        for (Button button : buttons) {
191            Action action = new Action(button.getName(), Action.EMPTY_CATEGORIES);
192            action.setLabel(button.getLabel());
193            boolean displayAction = true;
194            if (StringUtils.isNotEmpty(button.getFilter())) {
195                ActionContext actionContext = actionContextProvider.createActionContext();
196                if (node != null) {
197                    Map<String, Object> workflowContextualInfo = new HashMap<String, Object>();
198                    workflowContextualInfo.putAll(node.getWorkflowContextualInfo(documentManager, true));
199                    actionContext.putAllLocalVariables(workflowContextualInfo);
200                }
201                displayAction = getActionService().checkFilter(button.filter, actionContext);
202            }
203            if (displayAction) {
204                actions.add(action);
205            }
206        }
207        return actions;
208    }
209
210    public String endTask(Task task) {
211        // collect form data
212        Map<String, Object> data = new HashMap<String, Object>();
213        Map<String, Serializable> formVariables = getFormVariables(task);
214        if (getFormVariables(task) != null) {
215            data.put("WorkflowVariables", getFormVariables(task));
216            data.put("NodeVariables", getFormVariables(task));
217            // if there is a comment on the submitted form, pass it to be
218            // logged
219            // by audit
220            if (formVariables.containsKey(GraphNode.NODE_VARIABLE_COMMENT)) {
221                data.put(GraphNode.NODE_VARIABLE_COMMENT, formVariables.get(GraphNode.NODE_VARIABLE_COMMENT));
222            }
223        }
224        // add the button name that was clicked
225        try {
226            DocumentRoutingService routing = Framework.getService(DocumentRoutingService.class);
227            routing.endTask(documentManager, task, data, button);
228            facesMessages.add(StatusMessage.Severity.INFO, messages.get("workflow.feedback.info.taskEnded"));
229        } catch (DocumentRouteException e) {
230            log.error(e, e);
231            facesMessages.add(StatusMessage.Severity.ERROR, messages.get("workflow.feedback.error.taskEnded"));
232        }
233        Events.instance().raiseEvent(TaskEventNames.WORKFLOW_TASK_COMPLETED);
234        clear(task.getId());
235        if (navigationContext.getCurrentDocument() != null
236                && documentManager.hasPermission(navigationContext.getCurrentDocument().getRef(),
237                        SecurityConstants.READ)) {
238            return null;
239        }
240        // if the user only had temporary permissions on the current doc given
241        // by the workflow
242        navigationContext.setCurrentDocument(null);
243        return navigationContext.goHome();
244    }
245
246    private void clear(String taskId) {
247        button = null;
248        if (tasksInfoCache.containsKey(taskId)) {
249            tasksInfoCache.remove(taskId);
250        }
251    }
252
253    public Map<String, Serializable> getFormVariables(Task task) {
254        return getTaskInfo(task, true).formVariables;
255    }
256
257    public class TaskInfo {
258        protected HashMap<String, Serializable> formVariables;
259
260        protected String layout;
261
262        protected boolean canBeReassigned;
263
264        protected List<Button> buttons;
265
266        protected List<String> actors;
267
268        protected String comment;
269
270        protected String taskId;
271
272        protected String name;
273
274        protected TaskInfo(String taskId, HashMap<String, Serializable> formVariables, String layout,
275                List<Button> buttons, boolean canBeReassigned, String name) {
276            this.formVariables = formVariables;
277            this.layout = layout;
278            this.buttons = buttons;
279            this.canBeReassigned = canBeReassigned;
280            this.taskId = taskId;
281            this.name = name;
282        }
283
284        public List<String> getActors() {
285            return actors;
286        }
287
288        public void setActors(List<String> actors) {
289            this.actors = actors;
290        }
291
292        public String getComment() {
293            return comment;
294        }
295
296        public void setComment(String comment) {
297            this.comment = comment;
298        }
299
300        public boolean isCanBeReassigned() {
301            return canBeReassigned;
302        }
303
304        public String getTaskId() {
305            return taskId;
306        }
307
308        public String getName() {
309            return name;
310        }
311    }
312
313    // we have to be unrestricted to get this info
314    // because the current user may not be the one that started the
315    // workflow
316    public TaskInfo getTaskInfo(final Task task, final boolean getFormVariables) {
317        if (tasksInfoCache.containsKey(task.getId())) {
318            return tasksInfoCache.get(task.getId());
319        }
320        final String routeDocId = task.getVariable(DocumentRoutingConstants.TASK_ROUTE_INSTANCE_DOCUMENT_ID_KEY);
321        final String nodeId = task.getVariable(DocumentRoutingConstants.TASK_NODE_ID_KEY);
322        if (routeDocId == null) {
323            throw new NuxeoException("Can not get the source graph for this task");
324        }
325        if (nodeId == null) {
326            throw new NuxeoException("Can not get the source node for this task");
327        }
328        final TaskInfo[] res = new TaskInfo[1];
329        new UnrestrictedSessionRunner(documentManager) {
330            @Override
331            public void run() {
332                DocumentModel doc = session.getDocument(new IdRef(routeDocId));
333                GraphRoute route = doc.getAdapter(GraphRoute.class);
334                GraphNode node = route.getNode(nodeId);
335                HashMap<String, Serializable> map = new HashMap<String, Serializable>();
336                if (getFormVariables) {
337                    map.putAll(node.getVariables());
338                    map.putAll(route.getVariables());
339                }
340                res[0] = new TaskInfo(task.getId(), map, node.getTaskLayout(), node.getTaskButtons(),
341                        node.allowTaskReassignment(), task.getName());
342            }
343        }.runUnrestricted();
344        // don't add tasks in cache when are fetched without the form variables
345        // for
346        // bulk processing
347        if (getFormVariables) {
348            tasksInfoCache.put(task.getId(), res[0]);
349        }
350        return res[0];
351    }
352
353    /**
354     * @since 5.6
355     */
356    public boolean isRoutingTask(Task task) {
357        return task.getDocument().hasFacet(DocumentRoutingConstants.ROUTING_TASK_FACET_NAME);
358    }
359
360    /**
361     * @since 5.6
362     */
363    public List<Action> getTaskActions(Task task) {
364        return new ArrayList<Action>(getTaskActionsMap(task).values());
365    }
366
367    // temp method because Studio also refers to empty layouts
368    protected boolean isLayoutEmpty(String layoutName) {
369        if (layoutName == null || layoutName.isEmpty()) {
370            return true;
371        }
372        // explore the layout and find out if it contains only empty widgets
373        WebLayoutManager lm = Framework.getService(WebLayoutManager.class);
374        LayoutDefinition layout = lm.getLayoutDefinition(layoutName);
375        if (layout == null || layout.isEmpty()) {
376            return true;
377        }
378        return false;
379    }
380
381    /**
382     * Helper to generate a unique action id for all task types
383     *
384     * @since 5.7
385     */
386    protected String getTaskActionId(Task task, String buttonId) {
387        return String.format("%s_%s", task.getType(), buttonId);
388    }
389
390    /**
391     * @since 5.6
392     */
393    public Map<String, Action> getTaskActionsMap(Task task) {
394        Map<String, Action> actions = new LinkedHashMap<String, Action>();
395        TaskInfo taskInfo = getTaskInfo(task, true);
396        String layout = taskInfo.layout;
397        List<Button> buttons = taskInfo.buttons;
398
399        boolean addLayout = !isLayoutEmpty(layout);
400        Map<String, Serializable> props = null;
401        if (addLayout) {
402            props = new HashMap<String, Serializable>();
403            props.put("layout", layout);
404            props.put("formVariables", taskInfo.formVariables);
405        }
406
407        if (buttons != null && !buttons.isEmpty()) {
408            for (Button button : buttons) {
409                String buttonId = button.getName();
410                String id = getTaskActionId(task, buttonId);
411                Action action = new Action(id, Action.EMPTY_CATEGORIES);
412                action.setLabel(button.getLabel());
413                Map<String, Serializable> actionProps = new HashMap<String, Serializable>();
414                actionProps.put("buttonId", buttonId);
415                if (addLayout) {
416                    actionProps.putAll(props);
417                    action.setProperties(actionProps);
418                    action.setType("fancybox");
419                } else {
420                    action.setProperties(actionProps);
421                    action.setType("link");
422                }
423                boolean displayAction = true;
424                if (StringUtils.isNotEmpty(button.getFilter())) {
425                    displayAction = getActionService().checkFilter(button.filter,
426                            actionContextProvider.createActionContext());
427                }
428                if (displayAction) {
429                    actions.put(id, action);
430                }
431            }
432        }
433
434        // If there is a form attached to these tasks, add a generic
435        // process action to open the fancy box.
436        // The form of the first task will be displayed, but all the tasks
437        // concerned by this action share the same form, as they share the
438        // same type.
439        if (addLayout && !actions.isEmpty()) {
440            String id = getTaskActionId(task, "process_task");
441            Action processAction = new Action(id, Action.EMPTY_CATEGORIES);
442            processAction.setProperties(props);
443            processAction.setType("process_task");
444            actions.put(id, processAction);
445        }
446
447        return actions;
448    }
449
450    /**
451     * Returns actions for task document buttons defined in the workflow graph
452     *
453     * @since 5.6
454     */
455    @SuppressWarnings("boxing")
456    public List<Action> getTaskActions(String selectionListName) {
457        Map<String, Action> actions = new LinkedHashMap<String, Action>();
458        Map<String, Map<String, Action>> actionsPerTaskType = new LinkedHashMap<String, Map<String, Action>>();
459        Map<String, Integer> actionsCounter = new HashMap<String, Integer>();
460        List<DocumentModel> docs = documentsListsManager.getWorkingList(selectionListName);
461        boolean cachePerType = Boolean.TRUE.equals(Boolean.valueOf(Framework.getProperty(CACHE_ACTIONS_PER_TASK_TYPE_PROP_NAME)));
462        int taskDocsNum = 0;
463        if (docs != null && !docs.isEmpty()) {
464            for (DocumentModel doc : docs) {
465                if (doc.hasFacet(DocumentRoutingConstants.ROUTING_TASK_FACET_NAME)) {
466                    Task task = new TaskImpl(doc);
467                    String taskType = task.getType();
468                    Map<String, Action> taskActions = Collections.emptyMap();
469                    // if caching per type, fill the per type map, else update
470                    // actions directly
471                    if (cachePerType) {
472                        if (actionsPerTaskType.containsKey(taskType)) {
473                            taskActions = actionsPerTaskType.get(taskType);
474                        } else {
475                            taskActions = getTaskActionsMap(task);
476                            actionsPerTaskType.put(taskType, taskActions);
477                        }
478                    } else {
479                        taskActions = getTaskActionsMap(task);
480                        actions.putAll(taskActions);
481                    }
482                    for (String actionId : taskActions.keySet()) {
483                        Integer count = actionsCounter.get(actionId);
484                        if (count == null) {
485                            actionsCounter.put(actionId, 1);
486                        } else {
487                            actionsCounter.put(actionId, count + 1);
488                        }
489                    }
490                    taskDocsNum++;
491                }
492            }
493        }
494        if (cachePerType) {
495            // initialize actions for cache map
496            for (Map<String, Action> actionsPerType : actionsPerTaskType.values()) {
497                actions.putAll(actionsPerType);
498            }
499        }
500        List<Action> res = new ArrayList<Action>(actions.values());
501        for (Action action : res) {
502            if (!actionsCounter.get(action.getId()).equals(taskDocsNum)) {
503                action.setAvailable(false);
504            }
505        }
506        return res;
507    }
508
509    /**
510     * Ends a task given a selection list name and an action
511     *
512     * @since 5.6
513     */
514    @SuppressWarnings("unchecked")
515    public String endTasks(String selectionListName, Action taskAction) {
516        // collect form data
517        Map<String, Object> data = new HashMap<String, Object>();
518        String buttonId = (String) taskAction.getProperties().get("buttonId");
519        Map<String, Serializable> formVariables = (Map<String, Serializable>) taskAction.getProperties().get(
520                "formVariables");
521        if (formVariables != null && !formVariables.isEmpty()) {
522            data.put("WorkflowVariables", formVariables);
523            data.put("NodeVariables", formVariables);
524            // if there is a comment on the submitted form, pass it to be
525            // logged by audit
526            if (formVariables.containsKey(GraphNode.NODE_VARIABLE_COMMENT)) {
527                data.put(GraphNode.NODE_VARIABLE_COMMENT, formVariables.get(GraphNode.NODE_VARIABLE_COMMENT));
528            }
529        }
530
531        // get task documents
532        boolean hasErrors = false;
533        DocumentRoutingService routing = Framework.getService(DocumentRoutingService.class);
534        List<DocumentModel> docs = documentsListsManager.getWorkingList(selectionListName);
535        if (docs != null && !docs.isEmpty()) {
536            for (DocumentModel doc : docs) {
537                if (doc.hasFacet(DocumentRoutingConstants.ROUTING_TASK_FACET_NAME)) {
538                    // add the button name that was clicked
539                    try {
540                        routing.endTask(documentManager, new TaskImpl(doc), data, buttonId);
541                    } catch (DocumentRouteException e) {
542                        log.error(e, e);
543                        hasErrors = true;
544                    }
545                }
546            }
547        }
548        if (hasErrors) {
549            facesMessages.add(StatusMessage.Severity.ERROR, messages.get("workflow.feedback.error.tasksEnded"));
550        } else {
551            facesMessages.add(StatusMessage.Severity.INFO, messages.get("workflow.feedback.info.tasksEnded"));
552        }
553        // reset selection list
554        documentsListsManager.resetWorkingList(selectionListName);
555        // raise document change event to trigger refresh of content views
556        // listing task documents.
557        Events.instance().raiseEvent(EventNames.DOCUMENT_CHANGED);
558        Events.instance().raiseEvent(TaskEventNames.WORKFLOW_TASK_COMPLETED);
559        return null;
560    }
561
562    private ActionManager getActionService() {
563        if (actionService == null) {
564            actionService = Framework.getService(ActionManager.class);
565        }
566        return actionService;
567    }
568
569    /***
570     * @since 5.7
571     */
572    @Observer(value = { TaskEventNames.WORKFLOW_TASK_COMPLETED, TaskEventNames.WORKFLOW_TASK_REASSIGNED,
573            TaskEventNames.WORKFLOW_TASK_DELEGATED })
574    @BypassInterceptors
575    public void OnTaskCompleted() {
576        if (contentViewActions != null) {
577            contentViewActions.refreshOnSeamEvent(TaskEventNames.WORKFLOW_TASK_COMPLETED);
578            contentViewActions.resetPageProviderOnSeamEvent(TaskEventNames.WORKFLOW_TASK_COMPLETED);
579        }
580        tasksInfoCache.clear();
581        currentTask = null;
582    }
583
584    /**
585     * @since 5.7.3
586     */
587    public String reassignTask(TaskInfo taskInfo) {
588        try {
589            Framework.getService(DocumentRoutingService.class).reassignTask(documentManager, taskInfo.getTaskId(),
590                    taskInfo.getActors(), taskInfo.getComment());
591            Events.instance().raiseEvent(TaskEventNames.WORKFLOW_TASK_REASSIGNED);
592        } catch (DocumentRouteException e) {
593            log.error(e);
594            facesMessages.add(StatusMessage.Severity.ERROR, messages.get("workflow.feedback.error.taskEnded"));
595        }
596        return null;
597    }
598
599    /**
600     * @since 5.7.3
601     */
602    public String getWorkflowTitle(String instanceId) {
603        String workflowTitle = "";
604
605        try {
606            DocumentModel routeInstance = documentManager.getDocument(new IdRef(instanceId));
607            workflowTitle = routeInstance.getTitle();
608        } catch (DocumentNotFoundException e) {
609            log.error("Can not fetch route instance with id " + instanceId, e);
610        }
611        return workflowTitle;
612    }
613
614    /**
615     * @since 5.8
616     */
617    public String delegateTask(TaskInfo taskInfo) {
618        try {
619            Framework.getService(DocumentRoutingService.class).delegateTask(documentManager, taskInfo.getTaskId(),
620                    taskInfo.getActors(), taskInfo.getComment());
621            Events.instance().raiseEvent(TaskEventNames.WORKFLOW_TASK_DELEGATED);
622        } catch (DocumentRouteException e) {
623            log.error(e);
624            facesMessages.add(StatusMessage.Severity.ERROR, messages.get("workflow.feedback.error.taskEnded"));
625        }
626        return null;
627    }
628
629    /**
630     * @since 5.8
631     */
632    public String navigateToTask(DocumentModel taskDoc) {
633        setCurrentTask(taskDoc.getAdapter(Task.class));
634        return null;
635    }
636
637    /**
638     * @since 5.8
639     */
640    public String navigateToTasksView() {
641        setCurrentTask(null);
642        return null;
643    }
644
645    /**
646     * @since 5.8
647     */
648    public Task getCurrentTask() {
649        return currentTask;
650    }
651
652    /**
653     * @since 5.8
654     */
655    public void setCurrentTask(Task currentTask) {
656        this.currentTask = currentTask;
657    }
658
659    /**
660     * Added to avoid an error when opening a task created @before 5.8 see NXP-14047
661     *
662     * @since 5.9.3, 5.8.0-HF10
663     * @return
664     */
665    @SuppressWarnings("deprecation")
666    public List<String> getCurrentTaskTargetDocumentsIds() {
667        Set<String> uniqueTargetDocIds = new HashSet<String>();
668        List<String> docIds = new ArrayList<String>();
669        if (currentTask == null) {
670            return docIds;
671        }
672        uniqueTargetDocIds.addAll(currentTask.getTargetDocumentsIds());
673        docIds.addAll(uniqueTargetDocIds);
674        return docIds.isEmpty() ? null : docIds;
675    }
676
677    /**
678     * @since 5.8 - Define if action reassign task can be displayed.
679     */
680    public boolean canBeReassign() {
681        if (currentTask == null) {
682            return false;
683        }
684        DocumentModel workflowInstance = documentManager.getDocument(new IdRef(currentTask.getProcessId()));
685        GraphRoute workflow = workflowInstance.getAdapter(GraphRoute.class);
686        if (workflow == null) {
687            return false;
688        }
689        GraphNode node = workflow.getNode(currentTask.getType());
690        return node.allowTaskReassignment() && !currentTask.getDelegatedActors().contains(documentManager.getPrincipal().getName());
691    }
692}