001    /*
002     * Copyright 2006-2011 The Kuali Foundation
003     *
004     * Licensed under the Educational Community 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.opensource.org/licenses/ecl2.php
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    
017    package org.kuali.rice.kew.actions;
018    
019    import org.apache.commons.lang.StringUtils;
020    import org.apache.log4j.MDC;
021    import org.kuali.rice.core.framework.services.CoreFrameworkServiceLocator;
022    import org.kuali.rice.kew.actionrequest.ActionRequestFactory;
023    import org.kuali.rice.kew.actionrequest.ActionRequestValue;
024    import org.kuali.rice.kew.actionrequest.Recipient;
025    import org.kuali.rice.kew.actiontaken.ActionTakenValue;
026    import org.kuali.rice.kew.engine.node.RouteNodeInstance;
027    import org.kuali.rice.kew.exception.InvalidActionTakenException;
028    import org.kuali.rice.kew.exception.WorkflowException;
029    import org.kuali.rice.kew.routeheader.DocumentRouteHeaderValue;
030    import org.kuali.rice.kew.service.KEWServiceLocator;
031    import org.kuali.rice.kew.util.KEWConstants;
032    import org.kuali.rice.kew.util.Utilities;
033    import org.kuali.rice.kim.api.entity.principal.PrincipalContract;
034    import org.kuali.rice.kim.api.services.KimApiServiceLocator;
035    import org.kuali.rice.kim.api.group.Group;
036    
037    import org.kuali.rice.kns.util.KNSConstants;
038    
039    import java.util.Collection;
040    import java.util.HashSet;
041    import java.util.Iterator;
042    import java.util.List;
043    import java.util.Set;
044    
045    
046    /**
047     * Disapproves a document. This deactivates all requests on the document and sends
048     * acknowlegde requests to anybody who had already completed or approved the document.
049     *
050     * @author Kuali Rice Team (rice.collab@kuali.org)
051     */
052    public class DisapproveAction extends ActionTakenEvent {
053        private static final org.apache.log4j.Logger LOG = org.apache.log4j.Logger.getLogger(DisapproveAction.class);
054    
055        /**
056         * @param rh RouteHeader for the document upon which the action is taken.
057         * @param principal User taking the action.
058         */
059        public DisapproveAction(DocumentRouteHeaderValue rh, PrincipalContract principal) {
060            super(KEWConstants.ACTION_TAKEN_DENIED_CD, rh, principal);
061        }
062    
063        /**
064         * @param rh RouteHeader for the document upon which the action is taken.
065         * @param principal User taking the action.
066         * @param annotation User comment on the action taken
067         */
068        public DisapproveAction(DocumentRouteHeaderValue rh, PrincipalContract principal, String annotation) {
069            super(KEWConstants.ACTION_TAKEN_DENIED_CD, rh, principal, annotation);
070        }
071    
072        /* (non-Javadoc)
073         * @see org.kuali.rice.kew.actions.ActionTakenEvent#isActionCompatibleRequest(java.util.List)
074         */
075        @Override
076        public String validateActionRules() {
077            return validateActionRules(getActionRequestService().findAllPendingRequests(routeHeader.getDocumentId()));
078        }
079    
080        public String validateActionRules(List<ActionRequestValue> actionRequests) {
081            if (!getRouteHeader().isValidActionToTake(getActionPerformedCode())) {
082                return "Document is not in a state to be disapproved";
083            }
084            List<ActionRequestValue> filteredActionRequests = filterActionRequestsByCode(actionRequests, KEWConstants.ACTION_REQUEST_COMPLETE_REQ);
085            if (!isActionCompatibleRequest(filteredActionRequests)) {
086                return "No request for the user is compatible " + "with the DISAPPROVE or DENY action";
087            }
088            return "";
089        }
090    
091        /* (non-Javadoc)
092         * @see org.kuali.rice.kew.actions.ActionTakenEvent#isActionCompatibleRequest(java.util.List)
093         */
094        @Override
095        public boolean isActionCompatibleRequest(List requests) {
096            // can always cancel saved or initiated document
097            if (routeHeader.isStateInitiated() || routeHeader.isStateSaved()) {
098                return true;
099            }
100    
101            boolean actionCompatible = false;
102            Iterator ars = requests.iterator();
103            ActionRequestValue actionRequest = null;
104    
105            while (ars.hasNext()) {
106                actionRequest = (ActionRequestValue) ars.next();
107                String request = actionRequest.getActionRequested();
108    
109                // APPROVE request matches all but FYI and ACK
110                if ( (KEWConstants.ACTION_REQUEST_APPROVE_REQ.equals(request)) ||
111                     (KEWConstants.ACTION_REQUEST_COMPLETE_REQ.equals(request)) ) {
112                    actionCompatible = true;
113                    break;
114                }
115            }
116    
117            return actionCompatible;
118        }
119    
120        /**
121         * Records the disapprove action. - Checks to make sure the document status allows the action. - Checks that the user has not taken a previous action. - Deactivates the pending requests for this user - Records the action
122         *
123         * @throws InvalidActionTakenException
124         */
125        public void recordAction() throws InvalidActionTakenException {
126            MDC.put("docId", getRouteHeader().getDocumentId());
127            updateSearchableAttributesIfPossible();
128    
129            LOG.debug("Disapproving document : " + annotation);
130    
131            List actionRequests = getActionRequestService().findAllValidRequests(getPrincipal().getPrincipalId(), getDocumentId(), KEWConstants.ACTION_REQUEST_COMPLETE_REQ);
132            LOG.debug("Checking to see if the action is legal");
133            String errorMessage = validateActionRules(actionRequests);
134            if (!org.apache.commons.lang.StringUtils.isEmpty(errorMessage)) {
135                throw new InvalidActionTakenException(errorMessage);
136            }
137    
138            LOG.debug("Record the disapproval action");
139            Recipient delegator = findDelegatorForActionRequests(actionRequests);
140            ActionTakenValue actionTaken = saveActionTaken(delegator);
141    
142            LOG.debug("Deactivate all pending action requests");
143            actionRequests = getActionRequestService().findPendingByDoc(getDocumentId());
144            getActionRequestService().deactivateRequests(actionTaken, actionRequests);
145            notifyActionTaken(actionTaken);
146    
147            LOG.debug("Sending Acknowledgements to all previous approvers/completers");
148                    // Generate the notification requests in the first node we find that the current user has an approve request
149            RouteNodeInstance notificationNodeInstance = null;
150    //        if (actionRequests.size() > 0) { //I don't see why this matters let me know if it does rk
151                    notificationNodeInstance = ((ActionRequestValue)actionRequests.get(0)).getNodeInstance();
152    //        }
153            generateNotifications(notificationNodeInstance);
154    
155            LOG.debug("Disapproving document");
156            try {
157                String oldStatus = getRouteHeader().getDocRouteStatus();
158                routeHeader.markDocumentDisapproved();
159                String newStatus = getRouteHeader().getDocRouteStatus();
160                KEWServiceLocator.getRouteHeaderService().saveRouteHeader(routeHeader);
161                notifyStatusChange(newStatus, oldStatus);
162            } catch (WorkflowException ex) {
163                LOG.warn(ex, ex);
164                throw new InvalidActionTakenException(ex.getMessage());
165            }
166        }
167    
168        //generate notifications to all people that have approved the document including the initiator
169        private void generateNotifications(RouteNodeInstance notificationNodeInstance)
170        {
171            String groupName = CoreFrameworkServiceLocator.getParameterService().getParameterValueAsString(
172                    KEWConstants.KEW_NAMESPACE,
173                    KNSConstants.DetailTypes.WORKGROUP_DETAIL_TYPE,
174                    KEWConstants.NOTIFICATION_EXCLUDED_USERS_WORKGROUP_NAME_IND);
175    
176            Set<String> systemPrincipalIds = new HashSet<String>();
177    
178            if( !StringUtils.isBlank(groupName))
179            {
180                Group systemUserWorkgroup = KimApiServiceLocator.getIdentityManagementService().
181                    getGroupByName(Utilities.parseGroupNamespaceCode(groupName), Utilities.parseGroupName(groupName));
182    
183                List<String> principalIds = KimApiServiceLocator.
184                getIdentityManagementService().getGroupMemberPrincipalIds( systemUserWorkgroup.getId());
185    
186                if (systemUserWorkgroup != null)
187                {
188                    for( String id : principalIds)
189                    {
190                        systemPrincipalIds.add(id);
191                    }
192                }
193            }
194            ActionRequestFactory arFactory = new ActionRequestFactory(getRouteHeader(), notificationNodeInstance);
195            Collection<ActionTakenValue> actions = KEWServiceLocator.getActionTakenService().findByDocumentId(getDocumentId());
196            //one notification per person
197            Set<String> usersNotified = new HashSet<String>();
198            for (ActionTakenValue action : actions)
199            {
200                if ((action.isApproval() || action.isCompletion()) && !usersNotified.contains(action.getPrincipalId()))
201                {
202                    if (!systemPrincipalIds.contains(action.getPrincipalId()))
203                    {
204                        ActionRequestValue request = arFactory.createNotificationRequest(KEWConstants.ACTION_REQUEST_ACKNOWLEDGE_REQ, action.getPrincipal(), getActionTakenCode(), getPrincipal(), getActionTakenCode());
205                        KEWServiceLocator.getActionRequestService().activateRequest(request);
206                        usersNotified.add(request.getPrincipalId());
207                    }
208                }
209            }
210    
211        }
212    }