001    /**
002     * Copyright 2005-2013 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    package org.kuali.rice.kew.rule.web;
017    
018    import org.apache.commons.lang.StringUtils;
019    import org.apache.log4j.Logger;
020    import org.apache.struts.action.ActionForm;
021    import org.apache.struts.action.ActionForward;
022    import org.apache.struts.action.ActionMapping;
023    import org.kuali.rice.core.api.criteria.Predicate;
024    import org.kuali.rice.core.api.criteria.QueryByCriteria;
025    import org.kuali.rice.kew.doctype.bo.DocumentType;
026    import org.kuali.rice.kew.doctype.service.DocumentTypeService;
027    import org.kuali.rice.kew.engine.node.ProcessDefinitionBo;
028    import org.kuali.rice.kew.engine.node.RouteNode;
029    import org.kuali.rice.kew.engine.node.service.RouteNodeService;
030    import org.kuali.rice.kew.service.KEWServiceLocator;
031    import org.kuali.rice.kew.api.KewApiConstants;
032    import org.kuali.rice.kew.web.KewKualiAction;
033    import org.kuali.rice.kim.api.KimConstants;
034    import org.kuali.rice.kim.api.permission.Permission;
035    import org.kuali.rice.kim.api.permission.PermissionService;
036    import org.kuali.rice.kim.api.responsibility.Responsibility;
037    import org.kuali.rice.kim.api.responsibility.ResponsibilityService;
038    import org.kuali.rice.kim.api.role.Role;
039    import org.kuali.rice.kim.api.role.RoleService;
040    import org.kuali.rice.kim.api.services.KimApiServiceLocator;
041    import org.kuali.rice.kim.bo.impl.KimAttributes;
042    import org.kuali.rice.kim.impl.permission.PermissionBo;
043    import org.kuali.rice.kim.impl.permission.PermissionTemplateBo;
044    import org.kuali.rice.kim.impl.responsibility.ResponsibilityBo;
045    import org.kuali.rice.kns.service.DocumentHelperService;
046    import org.kuali.rice.kns.service.KNSServiceLocator;
047    import org.kuali.rice.kns.service.MaintenanceDocumentDictionaryService;
048    import org.kuali.rice.krad.service.DataDictionaryService;
049    import org.kuali.rice.krad.service.KRADServiceLocatorWeb;
050    import org.kuali.rice.krad.util.GlobalVariables;
051    import org.kuali.rice.krad.util.KRADConstants;
052    
053    import javax.servlet.http.HttpServletRequest;
054    import javax.servlet.http.HttpServletResponse;
055    import java.util.ArrayList;
056    import java.util.Collections;
057    import java.util.HashMap;
058    import java.util.HashSet;
059    import java.util.LinkedHashMap;
060    import java.util.List;
061    import java.util.Map;
062    import java.util.Set;
063    
064    import static org.kuali.rice.core.api.criteria.PredicateFactory.*;
065    
066    
067    /**
068     * This is a description of what this class does - kellerj don't forget to fill this in. 
069     * 
070     * @author Kuali Rice Team (rice.collab@kuali.org)
071     *
072     */
073    public class DocumentConfigurationViewAction extends KewKualiAction {
074    
075            private static final Logger LOG = Logger.getLogger(DocumentConfigurationViewAction.class);
076            
077            private PermissionService permissionService;
078            private RoleService roleService;
079            private ResponsibilityService responsibilityService;
080            private DocumentTypeService documentTypeService;
081            private DataDictionaryService dataDictionaryService;
082            private RouteNodeService routeNodeService;
083            private MaintenanceDocumentDictionaryService maintenanceDocumentDictionaryService;
084            private DocumentHelperService documentHelperService;
085            
086        public ActionForward start(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response) throws Exception {
087            populateForm( (DocumentConfigurationViewForm)form );
088            return mapping.findForward("basic");
089        }
090        
091        protected void populateForm( DocumentConfigurationViewForm form ) {
092            if ( StringUtils.isNotEmpty( form.getDocumentTypeName() ) ) {
093                    form.setDocumentType( getDocumentTypeService().findByName( form.getDocumentTypeName() ) ); 
094                    if ( form.getDocumentType() != null ) {
095                            form.getDocumentType().getChildrenDocTypes();
096                            form.setAttributeLabels( new HashMap<String, String>() );
097                            populateRelatedDocuments( form );
098                            populatePermissions( form );
099                            populateRoutingResponsibilities( form );
100                            populateRoutingExceptionResponsibility( form );
101                            checkPermissions( form );
102                    }
103            }
104        }
105    
106        protected void checkPermissions( DocumentConfigurationViewForm form ) {
107            String docTypeDocumentType = getMaintenanceDocumentDictionaryService().getDocumentTypeName(DocumentType.class);
108            try {
109                if ((docTypeDocumentType != null) && getDocumentHelperService().getDocumentAuthorizer(docTypeDocumentType).canInitiate(docTypeDocumentType, GlobalVariables.getUserSession().getPerson())) {
110                    form.setCanInitiateDocumentTypeDocument( true );
111                }
112            } catch (Exception ex) {
113                            // just skip - and don't display links
114                    LOG.error( "Unable to check DocumentType initiation permission for "+ docTypeDocumentType, ex );
115                    }
116            String permissionDocumentType = getMaintenanceDocumentDictionaryService().getDocumentTypeName(PermissionBo.class);
117            try {
118                if ((permissionDocumentType != null) && getDocumentHelperService().getDocumentAuthorizer(permissionDocumentType).canInitiate(permissionDocumentType, GlobalVariables.getUserSession().getPerson())) {
119                    form.setCanInitiatePermissionDocument( true );
120                }
121            } catch (Exception ex) {
122                            // just skip - and don't display links
123                    LOG.error( "Unable to check Permission initiation permission for "+ permissionDocumentType, ex );
124                    }
125            String responsibilityDocumentType = getMaintenanceDocumentDictionaryService().getDocumentTypeName(ResponsibilityBo.class);
126            try {
127                if ((responsibilityDocumentType != null) && getDocumentHelperService().getDocumentAuthorizer(responsibilityDocumentType).canInitiate(responsibilityDocumentType, GlobalVariables.getUserSession().getPerson())) {
128                    form.setCanInitiateResponsibilityDocument( true );
129                }
130            } catch (Exception ex) {
131                            // just skip - and don't display links
132                    LOG.error( "Unable to check Responsibility initiation permission for "+ responsibilityDocumentType, ex );
133                    }
134        }
135        
136        @SuppressWarnings("unchecked")
137            public void populateRelatedDocuments( DocumentConfigurationViewForm form ) {
138            form.setParentDocumentType( form.getDocumentType().getParentDocType() );
139            form.setChildDocumentTypes( new ArrayList<DocumentType>( form.getDocumentType().getChildrenDocTypes() ) );
140        }
141        
142            public void populatePermissions( DocumentConfigurationViewForm form ) {
143                    
144                    DocumentType docType = form.getDocumentType();
145                    Map<String,List<Role>> permRoles = new HashMap<String, List<Role>>();
146                    // loop over the document hierarchy
147                    Set<String> seenDocumentPermissions = new HashSet<String>();
148                    while ( docType != null) {
149                            String documentTypeName = docType.getName();
150                Predicate p = and(
151                    equal("active", "Y"),
152                    equal("attributes[" + KimConstants.AttributeConstants.DOCUMENT_TYPE_NAME + "]", docType.getName()));
153                            List<Permission> perms = getPermissionService().findPermissions(QueryByCriteria.Builder.fromPredicates(p)).getResults();
154                            for ( Permission perm : perms ) {
155                    PermissionBo permBo = PermissionBo.from(perm);
156                                    List<String> roleIds = getPermissionService().getRoleIdsForPermission(perm.getNamespaceCode(),
157                            perm.getName());
158                    if (!roleIds.isEmpty()) {
159                                        permRoles.put( perm.getId(), getRoleService().getRoles(roleIds) );
160                    }
161                                    for ( String attributeName : permBo.getDetails().keySet() ) {
162                                            addAttributeLabel(form, attributeName);
163                                    }
164                            }
165                            // show the section if the current document or permissions exist
166                            if ( perms.size() > 0 || documentTypeName.equals( form.getDocumentTypeName() ) ) {
167                                    ArrayList<PermissionForDisplay> dispPerms = new ArrayList<PermissionForDisplay>( perms.size() );
168                                    for ( Permission perm : perms ) {
169                        PermissionBo permBo = PermissionBo.from(perm);
170                                            if ( permBo.getDetails().size() == 1  ) { // only the document type
171                                                    // this is a document type-specific permission, check if seen earlier
172                                                    if ( seenDocumentPermissions.contains(perm.getTemplate().getNamespaceCode()+"|"+perm.getTemplate().getName()) ) {
173                                                            dispPerms.add( new PermissionForDisplay( permBo, true ) );
174                                                    } else {
175                                                            dispPerms.add( new PermissionForDisplay( permBo, false ) );
176                                                            seenDocumentPermissions.add(perm.getTemplate().getNamespaceCode()+"|"+perm.getTemplate().getName());
177                                                    }
178                                            } else {
179                                                    // other attributes, can't determine whether this is overridden at another level
180                                                    dispPerms.add( new PermissionForDisplay( permBo, false ) );
181                                            }
182                                    }
183                                    form.setPermissionsForDocumentType(documentTypeName, dispPerms );
184                                    form.addDocumentType(documentTypeName);
185                            }
186                            docType = docType.getParentDocType();                   
187                    }
188                    
189                    form.setPermissionRoles( permRoles );
190            }
191            
192            protected void populateRoutingExceptionResponsibility( DocumentConfigurationViewForm form ) {   
193                    DocumentType docType = form.getDocumentType();
194                    List<ResponsibilityForDisplay> responsibilities = new ArrayList<ResponsibilityForDisplay>();
195                    while ( docType != null) {
196                QueryByCriteria.Builder builder = QueryByCriteria.Builder.create();
197                Predicate p = and(
198                    equal("template.namespaceCode", KRADConstants.KUALI_RICE_WORKFLOW_NAMESPACE),
199                    equal("template.name", KewApiConstants.EXCEPTION_ROUTING_RESPONSIBILITY_TEMPLATE_NAME),
200                    equal("active", "Y"),
201                    equal("attributes[documentTypeName]", docType.getName())
202                );
203                builder.setPredicates(p);
204                            List<Responsibility> resps = getResponsibilityService().findResponsibilities(builder.build()).getResults();
205                            
206                            for ( Responsibility r : resps ) {
207                                    if ( responsibilities.isEmpty() ) {
208                                            responsibilities.add( new ResponsibilityForDisplay( r, false ) );
209                                    } else {
210                                            responsibilities.add( new ResponsibilityForDisplay( r, true ) );
211                                    }
212                            }
213                            docType = docType.getParentDocType();                   
214                    }
215                    form.setExceptionResponsibilities( responsibilities );
216                    for ( ResponsibilityForDisplay responsibility : responsibilities ) {
217                            List<String> roleIds = getResponsibilityService().getRoleIdsForResponsibility(responsibility.getResp().getId());
218                if (!roleIds.isEmpty()) {
219                                form.getResponsibilityRoles().put( responsibility.getResponsibilityId(), getRoleService().getRoles(roleIds) );
220                }
221                    }
222            }
223    
224            protected void addAttributeLabel( DocumentConfigurationViewForm form, String attributeName ) {
225                    if ( !form.getAttributeLabels().containsKey(attributeName) ) {
226                            form.getAttributeLabels().put(attributeName, 
227                                            getDataDictionaryService().getAttributeLabel(KimAttributes.class, attributeName) );
228                    }
229            }
230            
231            // loop over nodes
232            // if split node, push onto stack
233                    // note the number of children, this is the number of times the join node needs to be found
234            // when join node found, return to last split on stack
235                    // move to next child of the split
236            
237            protected RouteNode flattenSplitNode( RouteNode splitNode, Map<String,RouteNode> nodes ) {
238                    nodes.put( splitNode.getRouteNodeName(), splitNode );
239                    RouteNode joinNode = null;
240                    
241                    for ( RouteNode nextNode : splitNode.getNextNodes() ) {
242                            joinNode = flattenRouteNodes(nextNode, nodes);
243                    }
244                    
245                    if ( joinNode != null ) {
246                            nodes.put( joinNode.getRouteNodeName(), joinNode );
247                    }
248                    return joinNode;
249            }
250            
251            /**
252             * @param node
253             * @param nodes
254             * @return The last node processed by this method.
255             */
256            protected RouteNode flattenRouteNodes( RouteNode node, Map<String,RouteNode> nodes ) {
257                    RouteNode lastProcessedNode = null;
258            if (node != null) {
259                // if we've seen the node before - skip, avoids infinite loop
260                if ( nodes.containsKey(node.getRouteNodeName()) ) {
261                    return node;
262                }
263                    
264                if ( node.getNodeType().contains( "SplitNode" ) ) { // Hacky - but only way when the class may not be present in the KEW JVM
265                    lastProcessedNode = flattenSplitNode(node, nodes); // special handling to process all split children before continuing
266                    // now, process the join node's children
267                    if (lastProcessedNode != null) {
268                        for ( RouteNode nextNode : lastProcessedNode.getNextNodes() ) {
269                            lastProcessedNode = flattenRouteNodes(nextNode, nodes);
270                        }
271                    }
272                } else if ( node.getNodeType().contains( "JoinNode" ) ) {
273                    lastProcessedNode = node; // skip, handled by the split node
274                } else {
275                    // normal node, add to list and process all children
276                    nodes.put(node.getRouteNodeName(), node);
277                    for ( RouteNode nextNode : node.getNextNodes() ) {
278                        lastProcessedNode = flattenRouteNodes(nextNode, nodes);
279                    }
280                }
281            }
282                    return lastProcessedNode;
283            }
284            
285            @SuppressWarnings("unchecked")
286            public void populateRoutingResponsibilities( DocumentConfigurationViewForm form ) {
287                    // pull all the responsibilities
288                    // merge the data and attach to route levels
289                    // pull the route levels and store on form
290                    //List<RouteNode> routeNodes = getRouteNodeService().getFlattenedNodes(form.getDocumentType(), true);
291            Map<String,List<Role>> respToRoleMap = new HashMap<String, List<Role>>();
292            List<ProcessDefinitionBo> processes = (List<ProcessDefinitionBo>)form.getDocumentType().getProcesses();
293            if (!(processes.isEmpty())) {
294                RouteNode rootNode = processes.get(0).getInitialRouteNode();
295                LinkedHashMap<String, RouteNode> routeNodeMap = new LinkedHashMap<String, RouteNode>();
296                flattenRouteNodes(rootNode, routeNodeMap);
297                    
298                form.setRouteNodes( new ArrayList<RouteNode>( routeNodeMap.values() ) );
299                // pull all the responsibilities and store into a map for use by the JSP
300                    
301                // FILTER TO THE "Review" template only
302                // pull responsibility roles
303                DocumentType docType = form.getDocumentType();
304                Set<Responsibility> responsibilities = new HashSet<Responsibility>();
305                Map<String,List<ResponsibilityForDisplay>> nodeToRespMap = new LinkedHashMap<String, List<ResponsibilityForDisplay>>();
306                while ( docType != null) {
307                    QueryByCriteria.Builder builder = QueryByCriteria.Builder.create();
308                    Predicate p = and(
309                            equal("template.namespaceCode", KRADConstants.KUALI_RICE_WORKFLOW_NAMESPACE),
310                            equal("template.name", KewApiConstants.DEFAULT_RESPONSIBILITY_TEMPLATE_NAME),
311                            equal("active", "Y"),
312                            equal("attributes[documentTypeName]", docType.getName())
313                    );
314                    builder.setPredicates(p);
315                    List<Responsibility> resps = getResponsibilityService().findResponsibilities(builder.build()).getResults();
316                            
317                    for ( Responsibility r : resps ) {
318                        String routeNodeName = r.getAttributes().get(KimConstants.AttributeConstants.ROUTE_NODE_NAME);
319                        if ( StringUtils.isNotBlank(routeNodeName) ) {
320                            if ( !nodeToRespMap.containsKey( routeNodeName ) ) {
321                                nodeToRespMap.put(routeNodeName, new ArrayList<ResponsibilityForDisplay>() );
322                                nodeToRespMap.get(routeNodeName).add( new ResponsibilityForDisplay( r, false ) );
323                            } else {
324                                // check if the responsibility in the existing list is for the current document
325                                // if so, OK to add.  Otherwise, a lower level document has overridden this
326                                // responsibility (since we are walking up the hierarchy
327                                if ( nodeToRespMap.get(routeNodeName).get(0).getDetails().get( KimConstants.AttributeConstants.DOCUMENT_TYPE_NAME ).equals(docType.getName() ) ) {
328                                    nodeToRespMap.get(routeNodeName).add( new ResponsibilityForDisplay( r, false ) );
329                                } else { // doc type name did not match, mark as overridden
330                                    nodeToRespMap.get(routeNodeName).add( new ResponsibilityForDisplay( r, true ) );
331                                }
332                            }
333                            responsibilities.add(r);
334                        }
335                    }
336                    docType = docType.getParentDocType();                   
337                }
338                form.setResponsibilityMap( nodeToRespMap );
339                    
340                        for (Responsibility responsibility : responsibilities ) {
341                            List<String> roleIds = getResponsibilityService().getRoleIdsForResponsibility(responsibility.getId());
342                    if (!roleIds.isEmpty()) {
343                                respToRoleMap.put( responsibility.getId(), getRoleService().getRoles(roleIds) );
344                    }
345                        }
346            }
347                    form.setResponsibilityRoles( respToRoleMap );
348            }
349    
350            @Override
351            public ActionForward toggleTab(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response) throws Exception {
352                    // Repopulating the form is necessary when toggling tab states on the server side.
353                    ActionForward actionForward = super.toggleTab(mapping, form, request, response);
354                    populateForm( (DocumentConfigurationViewForm)form );
355                    return actionForward;
356            }
357    
358            /**
359             * Internal delegate class to wrap a responsibility and add an overridden flag.
360             */
361            public static class ResponsibilityForDisplay {
362    
363                    private Responsibility resp;
364                    private boolean overridden = false;
365                    
366                    public ResponsibilityForDisplay( Responsibility resp, boolean overridden ) {
367                            this.resp = resp;
368                            this.overridden = overridden;
369                    }
370                    
371                    /**
372                     * @return the resp
373                     */
374                    Responsibility getResp() {
375                            return this.resp;
376                    }
377                    
378                    public boolean isOverridden() {
379                            return this.overridden;
380                    }
381    
382                    public void setOverridden(boolean overridden) {
383                            this.overridden = overridden;
384                    }
385    
386                    public Map<String, String> getDetails() {
387                            return new HashMap<String, String>(this.resp.getAttributes());
388                    }
389    
390                    public String getName() {
391                            return this.resp.getName();
392                    }
393    
394                    public String getNamespaceCode() {
395                            return this.resp.getNamespaceCode();
396                    }
397    
398                    public String getResponsibilityId() {
399                            return this.resp.getId();
400                    }
401            }
402    
403            public static class PermissionForDisplay {
404                    private PermissionBo perm;
405                    private boolean overridden = false;
406                    
407                    public PermissionForDisplay( PermissionBo perm, boolean overridden ) {
408                            this.perm = perm;
409                            this.overridden = overridden;
410                    }
411                    public boolean isOverridden() {
412                            return this.overridden;
413                    }
414    
415                    public void setOverridden(boolean overridden) {
416                            this.overridden = overridden;
417                    }
418                    public Map<String, String> getDetails() {
419                            return this.perm.getDetails();
420                    }
421                    public String getName() {
422                            return this.perm.getName();
423                    }
424                    public String getNamespaceCode() {
425                            return this.perm.getNamespaceCode();
426                    }
427            public String getId() {
428                return this.perm.getId();
429            }
430                    public PermissionTemplateBo getTemplate() {
431                            return this.perm.getTemplate();
432                    }
433                    
434            }
435            
436            /**
437             * @return the permissionService
438             */
439            public PermissionService getPermissionService() {
440                    if ( permissionService == null ) {
441                            permissionService = KimApiServiceLocator.getPermissionService();
442                    }
443                    return permissionService;
444            }
445    
446            /**
447             * @return the roleService
448             */
449            public RoleService getRoleService() {
450                    if ( roleService == null ) {
451                            roleService = KimApiServiceLocator.getRoleService();
452                    }
453                    return roleService;
454            }
455    
456            /**
457             * @return the responsibilityService
458             */
459            public ResponsibilityService getResponsibilityService() {
460                    if ( responsibilityService == null ) {
461                            responsibilityService = KimApiServiceLocator.getResponsibilityService();
462                    }
463                    return responsibilityService;
464            }
465    
466            /**
467             * @return the documentTypeService
468             */
469            public DocumentTypeService getDocumentTypeService() {
470                    if ( documentTypeService == null ) {
471                            documentTypeService = KEWServiceLocator.getDocumentTypeService();
472                    }
473                    return documentTypeService;
474            }
475    
476            public DataDictionaryService getDataDictionaryService() {
477                    if(dataDictionaryService == null){
478                            dataDictionaryService = KRADServiceLocatorWeb.getDataDictionaryService();
479                    }
480                    return dataDictionaryService;
481            }
482    
483            public RouteNodeService getRouteNodeService() {
484                    if ( routeNodeService == null ) {
485                            routeNodeService = KEWServiceLocator.getRouteNodeService();
486                    }
487                    return routeNodeService;
488            }
489    
490            public DocumentHelperService getDocumentHelperService() {
491                    if(documentHelperService == null){
492                            documentHelperService = KNSServiceLocator.getDocumentHelperService();
493                    }
494                    return documentHelperService;
495            }
496    
497            public MaintenanceDocumentDictionaryService getMaintenanceDocumentDictionaryService() {
498                    if(maintenanceDocumentDictionaryService == null){
499                            maintenanceDocumentDictionaryService = KNSServiceLocator.getMaintenanceDocumentDictionaryService();
500                    }
501                    return maintenanceDocumentDictionaryService;
502            }
503            
504    }