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1   /**
2    * Copyright 2005-2013 The Kuali Foundation
3    *
4    * Licensed under the Educational Community License, Version 2.0 (the "License");
5    * you may not use this file except in compliance with the License.
6    * You may obtain a copy of the License at
7    *
8    * http://www.opensource.org/licenses/ecl2.php
9    *
10   * Unless required by applicable law or agreed to in writing, software
11   * distributed under the License is distributed on an "AS IS" BASIS,
12   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13   * See the License for the specific language governing permissions and
14   * limitations under the License.
15   */
16  package org.kuali.rice.krms.service.impl;
17  
18  import org.apache.commons.lang.StringUtils;
19  import org.kuali.rice.core.api.resourceloader.GlobalResourceLoader;
20  import org.kuali.rice.core.api.util.tree.Node;
21  import org.kuali.rice.core.api.util.tree.Tree;
22  import org.kuali.rice.krad.bo.Note;
23  import org.kuali.rice.krad.maintenance.MaintenanceDocument;
24  import org.kuali.rice.krad.uif.container.CollectionGroup;
25  import org.kuali.rice.krad.uif.util.ObjectPropertyUtils;
26  import org.kuali.rice.krad.uif.view.View;
27  import org.kuali.rice.krad.util.KRADConstants;
28  import org.kuali.rice.krad.web.form.MaintenanceDocumentForm;
29  import org.kuali.rice.krms.api.KrmsConstants;
30  import org.kuali.rice.krms.api.repository.RuleManagementService;
31  import org.kuali.rice.krms.api.repository.agenda.AgendaDefinition;
32  import org.kuali.rice.krms.api.repository.agenda.AgendaItemDefinition;
33  import org.kuali.rice.krms.api.repository.context.ContextDefinition;
34  import org.kuali.rice.krms.api.repository.language.NaturalLanguageTemplate;
35  import org.kuali.rice.krms.api.repository.proposition.PropositionType;
36  import org.kuali.rice.krms.api.repository.reference.ReferenceObjectBinding;
37  import org.kuali.rice.krms.api.repository.rule.RuleDefinition;
38  import org.kuali.rice.krms.api.repository.term.TermDefinition;
39  import org.kuali.rice.krms.api.repository.term.TermRepositoryService;
40  import org.kuali.rice.krms.api.repository.type.KrmsTypeDefinition;
41  import org.kuali.rice.krms.api.repository.type.KrmsTypeRepositoryService;
42  import org.kuali.rice.krms.api.repository.typerelation.TypeTypeRelation;
43  import org.kuali.rice.krms.dto.*;
44  import org.kuali.rice.krms.builder.ComponentBuilder;
45  import org.kuali.rice.krms.service.TemplateRegistry;
46  import org.kuali.rice.krms.tree.RuleCompareTreeBuilder;
47  import org.kuali.rice.krms.tree.RuleViewTreeBuilder;
48  import org.kuali.rice.krms.tree.node.RuleEditorTreeNode;
49  import org.kuali.rice.krms.service.RuleEditorMaintainable;
50  import org.kuali.rice.krms.util.AlphaIterator;
51  import org.kuali.student.common.uif.service.impl.KSMaintainableImpl;
52  import org.kuali.rice.krms.util.PropositionTreeUtil;
53  import org.kuali.student.r1.common.rice.StudentIdentityConstants;
54  import org.kuali.student.r2.core.constants.KSKRMSServiceConstants;
55  
56  import javax.xml.namespace.QName;
57  import java.util.*;
58  
59  /**
60   * {@link org.kuali.rice.krad.maintenance.Maintainable}
61   *
62   * @author Kuali Student Team (rice.collab@kuali.org)
63   */
64  public class RuleEditorMaintainableImpl extends KSMaintainableImpl implements RuleEditorMaintainable {
65  
66      private static final long serialVersionUID = 1L;
67  
68      private static final org.apache.log4j.Logger LOG = org.apache.log4j.Logger.getLogger(RuleEditorMaintainableImpl.class);
69  
70      private transient RuleManagementService ruleManagementService;
71      private transient KrmsTypeRepositoryService krmsTypeRepositoryService;
72      private transient TermRepositoryService termRepositoryService;
73  
74      private transient TemplateRegistry templateRegistry;
75      private AlphaIterator alphaIterator = new AlphaIterator(StringUtils.EMPTY);
76  
77      public static final String NEW_AGENDA_EDITOR_DOCUMENT_TEXT = "New Agenda Editor Document";
78  
79      public String getViewTypeName() {
80          return "kuali.krms.agenda.type";
81      }
82  
83      /**
84       * Get the AgendaEditor out of the MaintenanceDocumentForm's newMaintainableObject
85       *
86       * @param model the MaintenanceDocumentForm
87       * @return the AgendaEditor
88       */
89      private RuleEditor getRuleEditor(Object model) {
90          MaintenanceDocumentForm maintenanceDocumentForm = (MaintenanceDocumentForm) model;
91          return (RuleEditor) maintenanceDocumentForm.getDocument().getNewMaintainableObject().getDataObject();
92      }
93  
94      @Override
95      public Object retrieveObjectForEditOrCopy(MaintenanceDocument document, Map<String, String> dataObjectKeys) {
96          RuleManagementWrapper dataObject = new RuleManagementWrapper();
97  
98          String refObjectId = dataObjectKeys.get("refObjectId");
99          dataObject.setRefObjectId(refObjectId);
100 
101         dataObject.setAgendas(this.getAgendasForRef("", refObjectId));
102 
103         dataObject.setCompareTree(RuleCompareTreeBuilder.initCompareTree());
104 
105         return dataObject;
106     }
107 
108     protected List<AgendaEditor> getAgendasForRef(String discriminatorType, String refObjectId) {
109         // Initialize new array lists.
110         List<AgendaEditor> agendas = new ArrayList<AgendaEditor>();
111         List<AgendaEditor> sortedAgendas = new ArrayList<AgendaEditor>();
112         List<AgendaEditor> parentAgendas = new ArrayList<AgendaEditor>();
113 
114         // Get the list of existing agendas
115         LOG.info("Retrieving reference object binding for refobjectid: " + refObjectId);
116         List<ReferenceObjectBinding> refObjectsBindings = this.getRuleManagementService().findReferenceObjectBindingsByReferenceObject(discriminatorType, refObjectId);
117         for (ReferenceObjectBinding referenceObjectBinding : refObjectsBindings) {
118             LOG.info("Retrieved reference object binding with id: " + referenceObjectBinding);
119             agendas.add(this.getAgendaEditor(referenceObjectBinding.getKrmsObjectId()));
120         }
121 
122         // Get the list of parent agendas
123         List<ReferenceObjectBinding> parentRefObjects = this.getParentRefOjbects(refObjectId);
124         for (ReferenceObjectBinding referenceObject : parentRefObjects) {
125             parentAgendas.add(this.getAgendaEditor(referenceObject.getKrmsObjectId()));
126         }
127 
128         // Lookup existing agenda by type
129         for (AgendaTypeInfo agendaTypeInfo : this.getTypeRelationships()) {
130             AgendaEditor agenda = null;
131             for (AgendaEditor existingAgenda : agendas) {
132                 if (existingAgenda.getTypeId().equals(agendaTypeInfo.getId())) {
133                     agenda = existingAgenda;
134                     break;
135                 }
136             }
137             if (agenda == null) {
138                 agenda = new AgendaEditor();
139                 agenda.setTypeId(agendaTypeInfo.getId());
140             }
141 
142             //Set the parent agenda.
143             for (AgendaEditor parent : parentAgendas) {
144                 if (agenda.getTypeId().equals(agenda.getTypeId())) {
145                     agenda.setParent(parent);
146                     break;
147                 }
148             }
149 
150             agenda.setAgendaTypeInfo(agendaTypeInfo);
151             agenda.setRuleEditors(this.getRulesForAgendas(agenda));
152             sortedAgendas.add(agenda);
153         }
154 
155         return sortedAgendas;
156     }
157 
158     protected AgendaEditor getAgendaEditor(String agendaId) {
159         LOG.info("Retrieving agenda for id: " + agendaId);
160         AgendaDefinition agenda = this.getRuleManagementService().getAgenda(agendaId);
161         LOG.info("Retrieved agenda for id: " + agendaId);
162         return new AgendaEditor(agenda);
163     }
164 
165     public Map<String, RuleEditor> getRulesForAgendas(AgendaEditor agenda) {
166 
167         //Get all existing rules.
168         List<RuleEditor> existingRules = null;
169         if (agenda.getId() != null) {
170             LOG.info("Retrieving agenda item for id: " + agenda.getFirstItemId());
171             AgendaItemDefinition firstItem = this.getRuleManagementService().getAgendaItem(agenda.getFirstItemId());
172             LOG.info("Retrieved agenda item for id: " + agenda.getFirstItemId());
173             existingRules = getRuleEditorsFromTree(firstItem, true);
174         }
175 
176         //Get the parent rules
177         List<RuleEditor> parentRules = null;
178         if (agenda.getParent() != null) {
179             AgendaItemDefinition parentItem = this.getRuleManagementService().getAgendaItem(agenda.getParent().getFirstItemId());
180             parentRules = getRuleEditorsFromTree(parentItem, false);
181         }
182 
183         //Add dummy RuleEditors for empty rule types.
184         Map<String, RuleEditor> ruleEditors = new LinkedHashMap<String, RuleEditor>();
185         for (RuleTypeInfo ruleType : agenda.getAgendaTypeInfo().getRuleTypes()) {
186             RuleEditor ruleEditor = null;
187 
188             // Add all existing rules of this type.
189             if (existingRules != null) {
190                 for (RuleEditor rule : existingRules) {
191                     if (rule.getTypeId().equals(ruleType.getId()) && (!rule.isDummy())) {
192                         ruleEditor = rule;
193                     }
194                 }
195             }
196 
197             // If the ruletype does not exist, add an empty rule section
198             if (ruleEditor == null) {
199                 ruleEditor = new RuleEditor();
200                 ruleEditor.setDummy(true);
201                 ruleEditor.setTypeId(ruleType.getId());
202             }
203 
204             ruleEditor.setKey((String) alphaIterator.next());
205             ruleEditor.setRuleTypeInfo(ruleType);
206             ruleEditors.put(ruleEditor.getKey(), ruleEditor);
207 
208             //Set the parent agenda.
209             if (parentRules != null) {
210                 for (RuleEditor parent : parentRules) {
211                     if (ruleEditor.getTypeId().equals(parent.getTypeId())) {
212                         ruleEditor.setParent(parent);
213                         break;
214                     }
215                 }
216             }
217         }
218 
219         return ruleEditors;
220     }
221 
222     protected List<RuleEditor> getRuleEditorsFromTree(AgendaItemDefinition agendaItem, boolean initProps) {
223 
224         List<RuleEditor> rules = new ArrayList<RuleEditor>();
225         if (agendaItem.getRule() != null) {
226             RuleEditor ruleEditor = new RuleEditor(agendaItem.getRule());
227             if (initProps) {
228                 this.initPropositionEditor(ruleEditor.getPropositionEditor());
229                 ruleEditor.setViewTree(this.getViewTreeBuilder().buildTree(ruleEditor));
230             }
231             rules.add(ruleEditor);
232         }
233 
234         if (agendaItem.getWhenTrue() != null) {
235             rules.addAll(getRuleEditorsFromTree(agendaItem.getWhenTrue(), initProps));
236         }
237 
238         return rules;
239     }
240 
241     /**
242      * Override this method to return the reference object id of the parent object.
243      *
244      * @param refObjectId
245      * @return
246      */
247     @Override
248     public List<ReferenceObjectBinding> getParentRefOjbects(String refObjectId) {
249         return null;
250     }
251 
252     protected RuleViewTreeBuilder getViewTreeBuilder() {
253         return new RuleViewTreeBuilder();
254     }
255 
256     /**
257      * Setup a map with all the type information required to build an agenda management page.
258      *
259      * @return
260      */
261     protected List<AgendaTypeInfo> getTypeRelationships() {
262         List<AgendaTypeInfo> agendaTypeInfos = new ArrayList<AgendaTypeInfo>();
263 
264         // Get Instruction Usage Id
265         String instructionUsageId = getRuleManagementService().getNaturalLanguageUsageByNameAndNamespace(KSKRMSServiceConstants.KRMS_NL_TYPE_INSTRUCTION,
266                 StudentIdentityConstants.KS_NAMESPACE_CD).getId();
267 
268         // Get Description Usage Id
269         String descriptionUsageId = getRuleManagementService().getNaturalLanguageUsageByNameAndNamespace(KSKRMSServiceConstants.KRMS_NL_TYPE_DESCRIPTION,
270                 StudentIdentityConstants.KS_NAMESPACE_CD).getId();
271 
272         // Get the super type.
273         KrmsTypeDefinition requisitesType = this.getKrmsTypeRepositoryService().getTypeByName(StudentIdentityConstants.KS_NAMESPACE_CD, this.getViewTypeName());
274 
275         // Get all agenda types linked to super type.
276         List<TypeTypeRelation> agendaRelationships = this.getKrmsTypeRepositoryService().findTypeTypeRelationsByFromType(requisitesType.getId());
277         for (TypeTypeRelation agendaRelationship : agendaRelationships) {
278             AgendaTypeInfo agendaTypeInfo = new AgendaTypeInfo();
279             agendaTypeInfo.setId(agendaRelationship.getToTypeId());
280             agendaTypeInfo.setDescription(this.getDescriptionForTypeAndUsage(agendaRelationship.getToTypeId(), descriptionUsageId));
281 
282             // Get all rule types for each agenda type
283             List<TypeTypeRelation> ruleRelationships = this.getKrmsTypeRepositoryService().findTypeTypeRelationsByFromType(agendaRelationship.getToTypeId());
284             // order rules
285             List<TypeTypeRelation> sortedRuleRelationships = new ArrayList<TypeTypeRelation>();
286             sortedRuleRelationships.addAll(ruleRelationships);
287             Collections.sort(sortedRuleRelationships, new Comparator<TypeTypeRelation>() {
288                 @Override
289                 public int compare(TypeTypeRelation typeTypeRelation1, TypeTypeRelation typeTypeRelation2) {
290                     return typeTypeRelation1.getSequenceNumber().compareTo(typeTypeRelation2.getSequenceNumber());
291                 }
292             });
293 
294             List<RuleTypeInfo> ruleTypes = new ArrayList<RuleTypeInfo>();
295             for (TypeTypeRelation ruleRelationship : sortedRuleRelationships) {
296                 RuleTypeInfo ruleTypeInfo = new RuleTypeInfo();
297                 ruleTypeInfo.setId(ruleRelationship.getToTypeId());
298                 KrmsTypeDefinition ruleType = this.getKrmsTypeRepositoryService().getTypeById(ruleTypeInfo.getId());
299                 ruleTypeInfo.setType(ruleType.getName());
300                 ruleTypeInfo.setDescription(this.getDescriptionForTypeAndUsage(ruleRelationship.getToTypeId(), descriptionUsageId));
301                 if (ruleTypeInfo.getDescription().isEmpty()) {
302                     ruleTypeInfo.setDescription("Description is unset rule type");
303                 }
304                 ruleTypeInfo.setInstruction(this.getDescriptionForTypeAndUsage(ruleRelationship.getToTypeId(), instructionUsageId));
305                 if (ruleTypeInfo.getInstruction().isEmpty()) {
306                     ruleTypeInfo.setInstruction("Instruction is unset for rule type");
307                 }
308                 // Add rule types to list.
309                 ruleTypes.add(ruleTypeInfo);
310             }
311             agendaTypeInfo.setRuleTypes(ruleTypes);
312             agendaTypeInfos.add(agendaTypeInfo);
313         }
314 
315         return agendaTypeInfos;
316     }
317 
318     private String getDescriptionForTypeAndUsage(String typeId, String usageId) {
319         NaturalLanguageTemplate template = null;
320         try {
321             template = getRuleManagementService().findNaturalLanguageTemplateByLanguageCodeTypeIdAndNluId("en", typeId, usageId);
322             return template.getTemplate();
323         } catch (Exception e) {
324             return StringUtils.EMPTY;
325         }
326     }
327 
328     /**
329      * {@inheritDoc}
330      */
331     @Override
332     public void processAfterNew(MaintenanceDocument document, Map<String, String[]> requestParameters) {
333         super.processAfterNew(document, requestParameters);
334         document.getDocumentHeader().setDocumentDescription(NEW_AGENDA_EDITOR_DOCUMENT_TEXT);
335     }
336 
337     @Override
338     public void processAfterEdit(MaintenanceDocument document, Map<String, String[]> requestParameters) {
339         super.processAfterEdit(document, requestParameters);
340         document.getDocumentHeader().setDocumentDescription("Modify Agenda Editor Document");
341     }
342 
343     @Override
344     public void saveDataObject() {
345         RuleManagementWrapper ruleWrapper = (RuleManagementWrapper) getDataObject();
346 
347         for (AgendaEditor agenda : ruleWrapper.getAgendas()) {
348 
349             //Check if this agenda has anything to save
350             if (agenda.isDummyAgenda()) {
351                 continue;
352             }
353 
354             //Set the agenda name.
355             agenda.setName(ruleWrapper.getRefObjectId() + ":" + agenda.getAgendaTypeInfo().getId() + ":1");
356 
357             //Retrieve the context and set the id on the agenda.
358             if (agenda.getContextId() == null) {
359                 ContextDefinition context = this.getRuleManagementService().getContextByNameAndNamespace("Course Requirements", ruleWrapper.getNamespace());
360                 agenda.setContextId(context.getId());
361             }
362 
363             //Create or update the agenda.
364             if (agenda.getId() == null) {
365                 AgendaDefinition.Builder agendaBldr = AgendaDefinition.Builder.create(agenda);
366                 AgendaDefinition agendaDfn = this.getRuleManagementService().createAgenda(agendaBldr.build());
367 
368                 //Set the id and versionnumber for a possible update.
369                 agenda.setId(agendaDfn.getId());
370                 agenda.setVersionNumber(agendaDfn.getVersionNumber());
371                 agenda.setFirstItemId(agendaDfn.getFirstItemId());
372 
373                 //Create the reference object binding only on create agenda, no need to update.
374                 ReferenceObjectBinding.Builder refBuilder = ReferenceObjectBinding.Builder.create("Agenda",
375                         agendaDfn.getId(), ruleWrapper.getNamespace(), ruleWrapper.getRefDiscriminatorType(), ruleWrapper.getRefObjectId());
376                 this.getRuleManagementService().createReferenceObjectBinding(refBuilder.build());
377             }
378 
379             //Set the first agenda item id and save the agenda items
380             AgendaItemDefinition firstItem = maintainAgendaItems(agenda, ruleWrapper.getRefObjectId() + ":", ruleWrapper.getNamespace());
381 
382             //If no more rules linked to agenda, delete it.
383             if (firstItem.getRule() == null) {
384                 List<ReferenceObjectBinding> refObjectsBindings = this.getRuleManagementService().findReferenceObjectBindingsByReferenceObject(ruleWrapper.getRefDiscriminatorType(), ruleWrapper.getRefObjectId());
385                 for (ReferenceObjectBinding referenceObjectBinding : refObjectsBindings) {
386                     if (referenceObjectBinding.getKrmsObjectId().equals(agenda.getId())) {
387                         LOG.info("Deleting reference object binding for id: " + referenceObjectBinding.getId());
388                         this.getRuleManagementService().deleteReferenceObjectBinding(referenceObjectBinding.getId());
389                     }
390                 }
391                 LOG.info("Deleting agenda item for id: " + firstItem.getId());
392                 this.getRuleManagementService().deleteAgendaItem(firstItem.getId());
393                 LOG.info("Deleting agenda for id: " + agenda.getId());
394                 this.getRuleManagementService().deleteAgenda(agenda.getId());
395             }
396 
397         }
398 
399     }
400 
401     public AgendaItemDefinition maintainAgendaItems(AgendaEditor agenda, String namePrefix, String nameSpace) {
402 
403         Queue<RuleEditor> rules = new LinkedList<RuleEditor>();
404         for (RuleEditor rule : agenda.getRuleEditors().values()) {
405             if (!rule.isDummy()) {
406                 rules.add(rule);
407             }
408         }
409 
410         // Clear the first item and update.
411         AgendaItemDefinition firstItem = this.getRuleManagementService().getAgendaItem(agenda.getFirstItemId());
412         AgendaItemDefinition.Builder firstItemBuilder = AgendaItemDefinition.Builder.create(agenda.getFirstItemId(), agenda.getId());
413         firstItemBuilder.setRule(null);
414         firstItemBuilder.setRuleId(null);
415         firstItemBuilder.setWhenTrue(null);
416         firstItemBuilder.setWhenTrueId(null);
417         firstItemBuilder.setVersionNumber(firstItem.getVersionNumber());
418         this.getRuleManagementService().updateAgendaItem(firstItemBuilder.build());
419 
420         //Delete current agenda items to rebuild the tree.
421         if (firstItem.getWhenTrue() != null) {
422             this.deleteAgendaItems(firstItem.getWhenTrue());
423         }
424 
425         //Delete rules
426         for (RuleEditor deletedRule : agenda.getDeletedRules()) {
427             this.getRuleManagementService().deleteRule(deletedRule.getId());
428         }
429 
430         AgendaItemDefinition rootItem = this.getRuleManagementService().getAgendaItem(agenda.getFirstItemId());
431         AgendaItemDefinition.Builder rootItemBuilder = AgendaItemDefinition.Builder.create(rootItem);
432         AgendaItemDefinition.Builder itemBuilder = rootItemBuilder;
433         while (rules.peek()!=null) {
434             itemBuilder.setRule(this.finRule(rules.poll(), namePrefix, nameSpace));
435             itemBuilder.setRuleId(itemBuilder.getRule().getId());
436             if (rules.peek()!=null) {
437                 itemBuilder.setWhenTrue(AgendaItemDefinition.Builder.create(null, agenda.getId()));
438                 itemBuilder = itemBuilder.getWhenTrue();
439             }
440         }
441 
442         //Update the root item.
443         AgendaItemDefinition updateItem = rootItemBuilder.build();
444         this.getRuleManagementService().updateAgendaItem(updateItem);
445 
446         return updateItem;
447     }
448 
449     public void deleteAgendaItems(AgendaItemDefinition agendaItem) {
450         if (agendaItem != null) {
451             this.getRuleManagementService().deleteAgendaItem(agendaItem.getId());
452             deleteAgendaItems(agendaItem.getWhenFalse());
453             deleteAgendaItems(agendaItem.getWhenTrue());
454             deleteAgendaItems(agendaItem.getAlways());
455         }
456     }
457 
458     public RuleDefinition.Builder finRule(RuleEditor rule, String rulePrefix, String namespace) {
459         // handle saving new parameterized terms
460         if (rule.getPropositionEditor() != null) {
461             this.finPropositionEditor(rule.getPropositionEditor());
462         }
463 
464         if (rule.getNamespace() == null) {
465             rule.setNamespace(namespace);
466         }
467         rule.setName(rulePrefix + rule.getRuleTypeInfo().getId() + ":1");
468 
469         return RuleDefinition.Builder.create(rule);
470     }
471 
472     public void finPropositionEditor(PropositionEditor propositionEditor) {
473         if (PropositionType.SIMPLE.getCode().equalsIgnoreCase(propositionEditor.getPropositionTypeCode())) {
474 
475             //Call onsubmit on the associated builder.
476             ComponentBuilder builder = this.getTemplateRegistry().getComponentBuilderForType(propositionEditor.getType());
477             if (builder != null) {
478                 builder.onSubmit(propositionEditor);
479             }
480 
481             //Set the default operation and value
482             TemplateInfo template = this.getTemplateRegistry().getTemplateForType(propositionEditor.getType());
483             PropositionTreeUtil.getOperatorParameter(propositionEditor.getParameters()).setValue(template.getOperator());
484 
485             if (!"n".equals(template.getValue())) {
486                 PropositionTreeUtil.getConstantParameter(propositionEditor.getParameters()).setValue(template.getValue());
487             }
488 
489             if (propositionEditor.getTerm() != null) {
490                 TermDefinition.Builder termBuilder = TermDefinition.Builder.create(propositionEditor.getTerm());
491                 PropositionTreeUtil.getTermParameter(propositionEditor.getParameters()).setTermValue(termBuilder.build());
492             }
493 
494         } else {
495 
496             //If not a simple node, recursively finalize the child proposition editors.
497             for (PropositionEditor child : propositionEditor.getCompoundEditors()) {
498                 finPropositionEditor(child);
499             }
500 
501         }
502     }
503 
504     public void initPropositionEditor(PropositionEditor propositionEditor) {
505         if (propositionEditor == null) {
506             return;
507         }
508 
509         if (PropositionType.SIMPLE.getCode().equalsIgnoreCase(propositionEditor.getPropositionTypeCode())) {
510 
511             if (propositionEditor.getType() == null) {
512                 KrmsTypeDefinition type = this.getKrmsTypeRepositoryService().getTypeById(propositionEditor.getTypeId());
513                 propositionEditor.setType(type.getName());
514             }
515 
516             Map<String, String> termParameters = this.getTermParameters(propositionEditor);
517             ComponentBuilder builder = this.getTemplateRegistry().getComponentBuilderForType(propositionEditor.getType());
518             if (builder != null) {
519                 builder.resolveTermParameters(propositionEditor, termParameters);
520             }
521         } else {
522             for (PropositionEditor child : propositionEditor.getCompoundEditors()) {
523                 initPropositionEditor(child);
524             }
525 
526         }
527     }
528 
529     protected Map<String, String> getTermParameters(PropositionEditor proposition) {
530 
531         Map<String, String> termParameters = new HashMap<String, String>();
532         if (proposition.getTerm() == null) {
533             PropositionParameterEditor termParameter = PropositionTreeUtil.getTermParameter(proposition.getParameters());
534             if (termParameter != null) {
535 
536                 if (termParameter.getTermValue() == null) {
537                     proposition.setTerm(new TermEditor());
538                 } else {
539                     proposition.setTerm(new TermEditor(termParameter.getTermValue()));
540                 }
541 
542             } else {
543                 return termParameters;
544             }
545         }
546 
547         for (TermParameterEditor parameter : proposition.getTerm().getEditorParameters()) {
548             termParameters.put(parameter.getName(), parameter.getValue());
549         }
550 
551         return termParameters;
552     }
553 
554     /**
555      * In the case of edit maintenance adds a new blank line to the old side
556      * <p/>
557      *
558      * @see org.kuali.rice.krad.uif.service.impl.ViewHelperServiceImpl#processAfterAddLine(org.kuali.rice.krad.uif.view.View,
559      *      org.kuali.rice.krad.uif.container.CollectionGroup, Object,
560      *      Object, boolean)
561      */
562     @Override
563     protected void processAfterAddLine(View view, CollectionGroup collectionGroup, Object model, Object addLine, boolean isValidLine) {
564         // Check for maintenance documents in edit but exclude notes
565         if (model instanceof MaintenanceDocumentForm && KRADConstants.MAINTENANCE_EDIT_ACTION.equals(((MaintenanceDocumentForm) model).getMaintenanceAction()) && !(addLine instanceof Note)) {
566 
567             // Figure out which rule is being edited
568             RuleEditor rule = getRuleEditor(model);
569             // Figure out which proposition is being edited
570             Tree<RuleEditorTreeNode, String> propositionTree = rule.getEditTree();
571             Node<RuleEditorTreeNode, String> editedPropositionNode = PropositionTreeUtil.findEditedProposition(propositionTree.getRootElement());
572 
573             // get the old object's collection
574             Collection<Object> oldCollection = ObjectPropertyUtils
575                     .getPropertyValue(editedPropositionNode.getData(),
576                             collectionGroup.getPropertyName());
577 
578             try {
579                 Object blankLine = collectionGroup.getCollectionObjectClass().newInstance();
580                 //Add a blank line to the top of the collection
581                 if (oldCollection instanceof List) {
582                     ((List) oldCollection).add(0, blankLine);
583                 } else {
584                     oldCollection.add(blankLine);
585                 }
586             } catch (Exception e) {
587                 throw new RuntimeException("Unable to create new line instance for old maintenance object", e);
588             }
589         }
590     }
591 
592     public RuleManagementService getRuleManagementService() {
593         if (ruleManagementService == null) {
594             ruleManagementService = (RuleManagementService) GlobalResourceLoader.getService(new QName(KrmsConstants.Namespaces.KRMS_NAMESPACE_2_0, "ruleManagementService"));
595         }
596         return ruleManagementService;
597     }
598 
599     public KrmsTypeRepositoryService getKrmsTypeRepositoryService() {
600         if (krmsTypeRepositoryService == null) {
601             krmsTypeRepositoryService = (KrmsTypeRepositoryService) GlobalResourceLoader.getService(new QName(KrmsConstants.Namespaces.KRMS_NAMESPACE_2_0, "krmsTypeRepositoryService"));
602         }
603         return krmsTypeRepositoryService;
604     }
605 
606     public TermRepositoryService getTermRepositoryService() {
607         if (termRepositoryService == null) {
608             termRepositoryService = (TermRepositoryService) GlobalResourceLoader.getService(new QName(KrmsConstants.Namespaces.KRMS_NAMESPACE_2_0, "termRepositoryService"));
609         }
610         return termRepositoryService;
611     }
612 
613     private TemplateRegistry getTemplateRegistry() {
614         if (templateRegistry == null) {
615             templateRegistry = (TemplateRegistry) GlobalResourceLoader.getService(QName.valueOf("templateResolverMockService"));
616         }
617         return templateRegistry;
618     }
619 }