package org.kuali.student.lum.program.service.impl;

 import static org.apache.commons.collections.CollectionUtils.isNotEmpty;

 import java.util.ArrayList;

 import java.util.Date;

 import java.util.List;

 import org.apache.log4j.Logger;

 import org.kuali.student.common.validator.ServerDateParser;

 import org.kuali.student.common.validator.Validator;

 import org.kuali.student.common.validator.ValidatorFactory;

 import org.kuali.student.common.validator.ValidatorUtils;

 import org.kuali.student.core.assembly.BaseDTOAssemblyNode;

 import org.kuali.student.core.assembly.BaseDTOAssemblyNode.NodeOperation;

 import org.kuali.student.core.assembly.BusinessServiceMethodInvoker;

 import org.kuali.student.core.assembly.data.AssemblyException;

 import org.kuali.student.core.atp.dto.AtpInfo;

 import org.kuali.student.core.atp.service.AtpService;

 import org.kuali.student.core.dictionary.dto.DataType;

 import org.kuali.student.core.dictionary.dto.ObjectStructureDefinition;

 import org.kuali.student.core.dictionary.service.DictionaryService;

 import org.kuali.student.core.document.dto.RefDocRelationInfo;

 import org.kuali.student.core.document.service.DocumentService;

 import org.kuali.student.core.dto.StatusInfo;

 import org.kuali.student.core.exceptions.AlreadyExistsException;

 import org.kuali.student.core.exceptions.CircularReferenceException;

 import org.kuali.student.core.exceptions.CircularRelationshipException;

 import org.kuali.student.core.exceptions.DataValidationErrorException;

 import org.kuali.student.core.exceptions.DependentObjectsExistException;

 import org.kuali.student.core.exceptions.DoesNotExistException;

 import org.kuali.student.core.exceptions.IllegalVersionSequencingException;

 import org.kuali.student.core.exceptions.InvalidParameterException;

 import org.kuali.student.core.exceptions.MissingParameterException;

 import org.kuali.student.core.exceptions.OperationFailedException;

 import org.kuali.student.core.exceptions.PermissionDeniedException;

 import org.kuali.student.core.exceptions.UnsupportedActionException;

 import org.kuali.student.core.exceptions.VersionMismatchException;

 import org.kuali.student.core.search.dto.SearchCriteriaTypeInfo;

 import org.kuali.student.core.search.dto.SearchRequest;

 import org.kuali.student.core.search.dto.SearchResult;

 import org.kuali.student.core.search.dto.SearchResultTypeInfo;

 import org.kuali.student.core.search.dto.SearchTypeInfo;

 import org.kuali.student.core.search.service.SearchManager;

 import org.kuali.student.core.statement.dto.ReqCompFieldInfo;

 import org.kuali.student.core.statement.dto.ReqComponentInfo;

 import org.kuali.student.core.statement.dto.StatementTreeViewInfo;

 import org.kuali.student.core.validation.dto.ValidationResultInfo;

 import org.kuali.student.core.versionmanagement.dto.VersionDisplayInfo;

 import org.kuali.student.lum.course.dto.LoDisplayInfo;

 import org.kuali.student.lum.lu.dto.CluCluRelationInfo;

 import org.kuali.student.lum.lu.dto.CluInfo;

 import org.kuali.student.lum.lu.dto.CluSetInfo;

 import org.kuali.student.lum.lu.dto.LuTypeInfo;

 import org.kuali.student.lum.lu.service.LuService;

 import org.kuali.student.lum.lu.service.LuServiceConstants;

 import org.kuali.student.lum.program.dto.CoreProgramInfo;

 import org.kuali.student.lum.program.dto.CredentialProgramInfo;

 import org.kuali.student.lum.program.dto.HonorsProgramInfo;

 import org.kuali.student.lum.program.dto.MajorDisciplineInfo;

 import org.kuali.student.lum.program.dto.MinorDisciplineInfo;

 import org.kuali.student.lum.program.dto.ProgramRequirementInfo;

 import org.kuali.student.lum.program.dto.ProgramVariationInfo;

 import org.kuali.student.lum.program.service.ProgramService;

 import org.kuali.student.lum.program.service.ProgramServiceConstants;

 import org.kuali.student.lum.program.service.assembler.CoreProgramAssembler;

 import org.kuali.student.lum.program.service.assembler.CredentialProgramAssembler;

 import org.kuali.student.lum.program.service.assembler.MajorDisciplineAssembler;

 import org.kuali.student.lum.program.service.assembler.ProgramAssemblerConstants;

 import org.kuali.student.lum.statement.typekey.ReqComponentFieldTypes;

 import org.springframework.transaction.annotation.Transactional;

 @Transactional(readOnly=true,noRollbackFor={DoesNotExistException.class},rollbackFor={Throwable.class})

 public class ProgramServiceImpl implements ProgramService {

         final static Logger LOG = Logger.getLogger(ProgramServiceImpl.class);

     private LuService luService;

     private ValidatorFactory validatorFactory;

     private BusinessServiceMethodInvoker programServiceMethodInvoker;

     private DictionaryService dictionaryService;

     private SearchManager searchManager;

     private MajorDisciplineAssembler majorDisciplineAssembler;

     private ProgramRequirementAssembler programRequirementAssembler;

     private CredentialProgramAssembler credentialProgramAssembler;

     private CoreProgramAssembler coreProgramAssembler;

 //    private StatementService statementService;

     private AtpService atpService;

     private DocumentService documentService;

     @Override

     @Transactional(readOnly=false)

         public CredentialProgramInfo createCredentialProgram(

             CredentialProgramInfo credentialProgramInfo)

             throws AlreadyExistsException, DataValidationErrorException,

             InvalidParameterException, MissingParameterException,

             OperationFailedException, PermissionDeniedException {

         checkForMissingParameter(credentialProgramInfo, "CredentialProgramInfo");

         // Validate

         List<ValidationResultInfo> validationResults = validateCredentialProgram("OBJECT", credentialProgramInfo);

         if (null != validationResults && validationResults.size() > 0) {

             throw new DataValidationErrorException("Validation error!", validationResults);

         }

         try {

             return processCredentialProgramInfo(credentialProgramInfo, NodeOperation.CREATE);

         } catch (AssemblyException e) {

             LOG.error("Error disassembling Credential Program", e);

             throw new OperationFailedException("Error disassembling Credential Program");

         }

     }

     @Override

     @Transactional(readOnly=false)

         public HonorsProgramInfo createHonorsProgram(

             HonorsProgramInfo honorsProgramInfo) throws AlreadyExistsException,

             DataValidationErrorException, InvalidParameterException,

             MissingParameterException, OperationFailedException,

             PermissionDeniedException {

         // TODO Auto-generated method stub

         return null;

     }

     @Override

     @Transactional(readOnly=false)

         public ProgramRequirementInfo createProgramRequirement(

             ProgramRequirementInfo programRequirementInfo)

             throws AlreadyExistsException, DataValidationErrorException,

             InvalidParameterException, MissingParameterException,

             OperationFailedException, PermissionDeniedException {

         checkForMissingParameter(programRequirementInfo, "programRequirementInfo");

         // Validate

         List<ValidationResultInfo> validationResults = validateProgramRequirement("OBJECT", programRequirementInfo);

         if (isNotEmpty(validationResults)) {

                 throw new DataValidationErrorException("Validation error!", validationResults);

         }

         try {

             return processProgramRequirement(programRequirementInfo, NodeOperation.CREATE);

         } catch (AssemblyException e) {

             LOG.error("Error disassembling Program Requirement", e);

             throw new OperationFailedException("Error disassembling Program Requirement", e);

         }

     }

     @Override

     @Transactional(readOnly=false)

         public MajorDisciplineInfo createMajorDiscipline(

             MajorDisciplineInfo majorDisciplineInfo)

             throws AlreadyExistsException, DataValidationErrorException,

             InvalidParameterException, MissingParameterException,

             OperationFailedException, PermissionDeniedException {

         checkForMissingParameter(majorDisciplineInfo, "MajorDisciplineInfo");

         // Validate

         List<ValidationResultInfo> validationResults = validateMajorDiscipline("OBJECT", majorDisciplineInfo);

         if (null != validationResults && validationResults.size() > 0) {

             throw new DataValidationErrorException("Validation error!", validationResults);

         }

         try {

             return processMajorDisciplineInfo(majorDisciplineInfo, NodeOperation.CREATE);

         } catch (AssemblyException e) {

             LOG.error("Error creating Major Discipline", e);

             throw new OperationFailedException("Error creating Major Discipline");

         }

     }

     @Override

         @Transactional(readOnly=false)

         public MajorDisciplineInfo createNewMajorDisciplineVersion(

                         String majorDisciplineVerIndId, String versionComment)

                         throws DoesNotExistException, InvalidParameterException,

                         MissingParameterException, OperationFailedException,

                         PermissionDeniedException, VersionMismatchException, DataValidationErrorException {

                 //step one, get the original

                 VersionDisplayInfo currentVersion = luService.getCurrentVersion(LuServiceConstants.CLU_NAMESPACE_URI, majorDisciplineVerIndId);

                 MajorDisciplineInfo originalMajorDicipline = getMajorDiscipline(currentVersion.getId());

                 //Version the Clu

                 CluInfo newVersionClu = luService.createNewCluVersion(majorDisciplineVerIndId, versionComment);

                 try {

                 BaseDTOAssemblyNode<MajorDisciplineInfo, CluInfo> results;

                 //Integrate changes into the original. (should this just be just the id?)

                         majorDisciplineAssembler.assemble(newVersionClu, originalMajorDicipline, true);

                         //Clear Ids from the original so it will make a copy and do other processing

                         processCopy(originalMajorDicipline, currentVersion.getId());

                         //Disassemble the new

                         results = majorDisciplineAssembler.disassemble(originalMajorDicipline, NodeOperation.UPDATE);

                         // Use the results to make the appropriate service calls here

                         programServiceMethodInvoker.invokeServiceCalls(results);

                         return results.getBusinessDTORef();

                 } catch(AssemblyException e) {

                         throw new OperationFailedException("Error creating new MajorDiscipline version",e);

                 } catch (AlreadyExistsException e) {

                         throw new OperationFailedException("Error creating new MajorDiscipline version",e);

                 } catch (DependentObjectsExistException e) {

                         throw new OperationFailedException("Error creating new MajorDiscipline version",e);

                 } catch (CircularRelationshipException e) {

                         throw new OperationFailedException("Error creating new MajorDiscipline version",e);

                 } catch (UnsupportedActionException e) {

                         throw new OperationFailedException("Error creating new MajorDiscipline version",e);

                 } catch (CircularReferenceException e) {

                         throw new OperationFailedException("Error creating new MajorDiscipline version",e);

                 }

         }

         /**

          * Recurses through the statement tree and clears out ids so the tree can be copied.

          * Also creates copies of clusets since they are single use

          * 

          * @param statementTreeView

          * @throws OperationFailedException

          */

         private void clearStatementTreeViewIdsRecursively(StatementTreeViewInfo statementTreeView) throws OperationFailedException{

                 if(statementTreeView!=null){

                         statementTreeView.setId(null);

                         for(ReqComponentInfo reqComp:statementTreeView.getReqComponents()){

                                 reqComp.setId(null);

                                 for(ReqCompFieldInfo field:reqComp.getReqCompFields()){

                                         field.setId(null);

                                         //copy any clusets that are adhoc'd and set the field value to the new cluset

                                         if(ReqComponentFieldTypes.COURSE_CLUSET_KEY.getId().equals(field.getType())||

                                            ReqComponentFieldTypes.PROGRAM_CLUSET_KEY.getId().equals(field.getType())||

                                            ReqComponentFieldTypes.CLUSET_KEY.getId().equals(field.getType())){

                                                 try {

                                                         CluSetInfo cluSet = luService.getCluSetInfo(field.getValue());

                                                         cluSet.setId(null);

                                                         cluSet = luService.createCluSet(cluSet.getType(), cluSet);

                                                         field.setValue(cluSet.getId());

                                                 } catch (Exception e) {

                                                         throw new OperationFailedException("Error copying clusets.", e);

                                                 }

                                         }

                                 }

                         }

                         //Recurse through the children

                         for(StatementTreeViewInfo child: statementTreeView.getStatements()){

                                 clearStatementTreeViewIdsRecursively(child);

                         }

                 }

         }

         /**

      * Clears out any ids so that a subsequent call to create will copy complex structures. 

      * Also updates VersionInfo on variations to match VersionInfo on parent.

      * 

      * @param majorDiscipline

          * @throws PermissionDeniedException 

          * @throws OperationFailedException 

          * @throws MissingParameterException 

          * @throws InvalidParameterException 

          * @throws DoesNotExistException 

          * @throws DataValidationErrorException 

          * @throws AlreadyExistsException 

          * @throws VersionMismatchException 

          * @throws CircularRelationshipException 

      */

     private void processCopy(MajorDisciplineInfo majorDiscipline,String originalId) throws DoesNotExistException, InvalidParameterException, MissingParameterException, OperationFailedException, PermissionDeniedException, AlreadyExistsException, DataValidationErrorException, VersionMismatchException, CircularRelationshipException {

                 //Clear Los

                 for(LoDisplayInfo lo:majorDiscipline.getLearningObjectives()){

                         resetLoRecursively(lo);

                 }

                 //Clear OrgCoreProgram

                 if(majorDiscipline.getOrgCoreProgram()!=null){

                         majorDiscipline.getOrgCoreProgram().setId(null);

                         if(majorDiscipline.getOrgCoreProgram().getLearningObjectives()!=null){

                                 for(LoDisplayInfo lo:majorDiscipline.getOrgCoreProgram().getLearningObjectives()){

                                         resetLoRecursively(lo);

                                 }

                         }

                 }

                 //Clear Variations

                 for(ProgramVariationInfo variation:majorDiscipline.getVariations()){

                         //Create new variation version

                         String variationVersionIndId = variation.getVersionInfo().getVersionIndId();

                         CluInfo newVariationClu = luService.createNewCluVersion(variationVersionIndId, "Variation version for MajorDiscipline version " + majorDiscipline.getVersionInfo().getSequenceNumber());        

                         //Create relation b/w new major discipline and new variation

                         CluCluRelationInfo relation = new CluCluRelationInfo();

                 relation.setCluId(majorDiscipline.getId());

                 relation.setRelatedCluId(newVariationClu.getId());

                 relation.setType(ProgramAssemblerConstants.HAS_PROGRAM_VARIATION);

                 relation.setState(ProgramAssemblerConstants.ACTIVE);

                         luService.createCluCluRelation(relation.getCluId(), relation.getRelatedCluId(), relation.getType(), relation);

                         //Set variation id & versionInfo to new variation clu

                         variation.setId(newVariationClu.getId());

                         variation.setMetaInfo(newVariationClu.getMetaInfo());

                         //Set state to parent program's state

                         variation.setState(majorDiscipline.getState());

                         //Clear Los

                         for(LoDisplayInfo lo:variation.getLearningObjectives()){

                                 resetLoRecursively(lo);

                         }

                         //Copy Requirements for variation

                         copyProgramRequirements(variation.getProgramRequirements(),majorDiscipline.getState());

                 }

                 //Copy requirements for majorDicipline

                 copyProgramRequirements(majorDiscipline.getProgramRequirements(),majorDiscipline.getState());

                 //Copy documents(create new relations to the new version)

                 List<RefDocRelationInfo> docRelations = documentService.getRefDocRelationsByRef("kuali.org.RefObjectType.ProposalInfo", originalId);

                 if(docRelations!=null){

                         for(RefDocRelationInfo docRelation:docRelations){

                                 docRelation.setId(null);

                                 docRelation.setRefObjectId(majorDiscipline.getId());

                                 documentService.createRefDocRelation("kuali.org.RefObjectType.ProposalInfo", majorDiscipline.getId(), docRelation.getDocumentId(), docRelation.getType(), docRelation);

                         }

                 }

         }

         private void processCopy(CredentialProgramInfo originaCredentialProgram,

                         String originalId) throws OperationFailedException, AlreadyExistsException, DataValidationErrorException, InvalidParameterException, MissingParameterException, PermissionDeniedException, DoesNotExistException {

                 //Clear Los

                 if (originaCredentialProgram.getLearningObjectives() != null){

                         for(LoDisplayInfo lo:originaCredentialProgram.getLearningObjectives()){

                                 resetLoRecursively(lo);

                         }

                 }

                 //Copy requirements for majorDicipline

                 copyProgramRequirements(originaCredentialProgram.getProgramRequirements(),originaCredentialProgram.getState());

                 //Copy documents(create new relations to the new version)

                 List<RefDocRelationInfo> docRelations = documentService.getRefDocRelationsByRef("kuali.org.RefObjectType.ProposalInfo", originalId);

                 if(docRelations!=null){

                         for(RefDocRelationInfo docRelation:docRelations){

                                 docRelation.setId(null);

                                 docRelation.setRefObjectId(originaCredentialProgram.getId());

                                 documentService.createRefDocRelation("kuali.org.RefObjectType.ProposalInfo", originaCredentialProgram.getId(), docRelation.getDocumentId(), docRelation.getType(), docRelation);

                         }

                 }

         }

     private void processCopy(CoreProgramInfo originalCoreProgram, String originalId) throws OperationFailedException, AlreadyExistsException, DataValidationErrorException, InvalidParameterException, MissingParameterException, PermissionDeniedException, DoesNotExistException {

                 //Clear Los

                 for(LoDisplayInfo lo:originalCoreProgram.getLearningObjectives()){

                         resetLoRecursively(lo);

                 }

                 //Copy requirements for majorDicipline

                 copyProgramRequirements(originalCoreProgram.getProgramRequirements(),originalCoreProgram.getState());

                 //Copy documents(create new relations to the new version)

                 List<RefDocRelationInfo> docRelations = documentService.getRefDocRelationsByRef("kuali.org.RefObjectType.ProposalInfo", originalId);

                 if(docRelations!=null){

                         for(RefDocRelationInfo docRelation:docRelations){

                                 docRelation.setId(null);

                                 docRelation.setRefObjectId(originalCoreProgram.getId());

                                 documentService.createRefDocRelation("kuali.org.RefObjectType.ProposalInfo", originalCoreProgram.getId(), docRelation.getDocumentId(), docRelation.getType(), docRelation);

                         }

                 }

         }

     /**

      * Copy requirements (these exist external to the program save process and are referenced by id)

      * @param originalProgramRequirementIds

      * @param state

      * @throws OperationFailedException

      * @throws AlreadyExistsException

      * @throws DataValidationErrorException

      * @throws InvalidParameterException

      * @throws MissingParameterException

      * @throws PermissionDeniedException

      * @throws DoesNotExistException

      */

     private void copyProgramRequirements(List<String> originalProgramRequirementIds,String state) throws OperationFailedException, AlreadyExistsException, DataValidationErrorException, InvalidParameterException, MissingParameterException, PermissionDeniedException, DoesNotExistException{

                 //Pull out the current requirement ids to be replaced by the ids of the new copies 

                 List<String> programRequirementIds = new ArrayList<String>(originalProgramRequirementIds);

                 originalProgramRequirementIds.clear();

                 for(String programRequirementId:programRequirementIds){

                         //Grab the original 

                         ProgramRequirementInfo programRequirementInfo = getProgramRequirement(programRequirementId, null, null);

                         //Clear the id

                         programRequirementInfo.setId(null);

                         programRequirementInfo.setState(state);

                         //Clear statement tree ids

                         clearStatementTreeViewIdsRecursively(programRequirementInfo.getStatement());

                         //Clear learning objectives

                         for(LoDisplayInfo lo:programRequirementInfo.getLearningObjectives()){

                                 resetLoRecursively(lo);

                         }

                         //Create the new copy

                         ProgramRequirementInfo createdProgramRequirement = createProgramRequirement(programRequirementInfo);

                         //add the copy's id back to the majorDicipline's list of requirements

                         originalProgramRequirementIds.add(createdProgramRequirement.getId());

                 }

     }

         /**

          * Recursively clears out the ids in a Lo and in its child Los

          * @param lo

          */

         private void resetLoRecursively(LoDisplayInfo lo){

                 lo.getLoInfo().setId(null);

                 for(LoDisplayInfo nestedLo:lo.getLoDisplayInfoList()){

                         resetLoRecursively(nestedLo);

                 }

         }

         @Override

         @Transactional(readOnly=false)

         public StatusInfo setCurrentMajorDisciplineVersion(

                         String majorDisciplineId, Date currentVersionStart)

                         throws DoesNotExistException, InvalidParameterException,

                         MissingParameterException, IllegalVersionSequencingException,

                         OperationFailedException, PermissionDeniedException {

                 StatusInfo status = luService.setCurrentCluVersion(majorDisciplineId, currentVersionStart);

                 //Update the variations to be current as well

                 List<ProgramVariationInfo> variationList = getVariationsByMajorDisciplineId(majorDisciplineId);

                 for (ProgramVariationInfo variationInfo:variationList){

                         String variationId = variationInfo.getId();

                         //If null set to current (non-null value means version is first and is already current)

                         if (variationInfo.getVersionInfo().getCurrentVersionStart() == null){

                                 luService.setCurrentCluVersion(variationId, currentVersionStart);

                         }

                 }

                 return status;

         }

         @Override

     @Transactional(readOnly=false)

         public MinorDisciplineInfo createMinorDiscipline(

             MinorDisciplineInfo minorDisciplineInfo)

             throws AlreadyExistsException, DataValidationErrorException,

             InvalidParameterException, MissingParameterException,

             OperationFailedException, PermissionDeniedException {

         // TODO Auto-generated method stub

         return null;

     }

     @Override

     @Transactional(readOnly=false)

         public StatusInfo deleteCredentialProgram(String credentialProgramId)

             throws DoesNotExistException, InvalidParameterException,

             MissingParameterException, OperationFailedException,

             PermissionDeniedException {

 //        try {

 //                CredentialProgramInfo credentialProgram = getCredentialProgram(credentialProgramId);

 //

 //            processCredentialProgramInfo(credentialProgram, NodeOperation.DELETE);

 //

 //            return getStatus();

 //

 //        } catch (AssemblyException e) {

 //            LOG.error("Error disassembling CredentialProgram", e);

 //            throw new OperationFailedException("Error disassembling CredentialProgram");

 //        }

             throw new OperationFailedException("Deletion of CredentialProgram is not supported."); 

     }

     @Override

     @Transactional(readOnly=false)

         public StatusInfo deleteHonorsProgram(String honorsProgramId)

             throws DoesNotExistException, InvalidParameterException,

             MissingParameterException, OperationFailedException,

             PermissionDeniedException {

         // TODO Auto-generated method stub

         return null;

     }

     @Override

     @Transactional(readOnly=false)

         public StatusInfo deleteMajorDiscipline(String majorDisciplineId)

             throws DoesNotExistException, InvalidParameterException,

             MissingParameterException, OperationFailedException,

             PermissionDeniedException {

         try {

             MajorDisciplineInfo majorDiscipline = getMajorDiscipline(majorDisciplineId);

             processMajorDisciplineInfo(majorDiscipline, NodeOperation.DELETE);

             return getStatus();

         } catch (AssemblyException e) {

             LOG.error("Error disassembling MajorDiscipline", e);

             throw new OperationFailedException("Error disassembling MajorDiscipline");

         }

     }

     @Override

     @Transactional(readOnly=false)

         public StatusInfo deleteMinorDiscipline(String minorDisciplineId)

             throws DoesNotExistException, InvalidParameterException,

             MissingParameterException, OperationFailedException,

             PermissionDeniedException {

         // TODO Auto-generated method stub

         return null;

     }

     @Override

     @Transactional(readOnly=false)

         public StatusInfo deleteProgramRequirement(String programRequirementId)

             throws DoesNotExistException, InvalidParameterException,

             MissingParameterException, OperationFailedException,

             PermissionDeniedException {

             checkForMissingParameter(programRequirementId, "programRequirementId");

         try {

                 ProgramRequirementInfo programRequirement = getProgramRequirement(programRequirementId, null, null);

                 processProgramRequirement(programRequirement, NodeOperation.DELETE);

             return getStatus();

         } catch (AssemblyException e) {

             LOG.error("Error disassembling MajorDiscipline", e);

             throw new OperationFailedException("Error disassembling ProgramRequirement", e);

         }

     }

     @Override

     public CredentialProgramInfo getCredentialProgram(String credentialProgramId)

             throws DoesNotExistException, InvalidParameterException,

             MissingParameterException, OperationFailedException,

             PermissionDeniedException {

             CredentialProgramInfo credentialProgramInfo = null;

         try {

             CluInfo clu = luService.getClu(credentialProgramId);

             if ( ! ProgramAssemblerConstants.CREDENTIAL_PROGRAM_TYPES.contains(clu.getType()) ) {

                 throw new DoesNotExistException("Specified CLU is not a Credential Program");

             }

             credentialProgramInfo = credentialProgramAssembler.assemble(clu, null, false);

         } catch (AssemblyException e) {

             LOG.error("Error assembling CredentialProgram", e);

             throw new OperationFailedException("Error assembling CredentialProgram");

         }

         return credentialProgramInfo;

                 // comment out the above, and uncomment below to get auto-generated data

         // (and vice-versa)

 //                try {

 //                        return new CredentialProgramDataGenerator(ProgramAssemblerConstants.BACCALAUREATE_PROGRAM).getCPTestData();

 //                } catch (Exception e) {

 //                        return null;

 //                }

     }

     @Override

     public LuTypeInfo getCredentialProgramType(String credentialProgramTypeKey)

             throws DoesNotExistException, InvalidParameterException,

             MissingParameterException, OperationFailedException {

         // TODO Auto-generated method stub

         return null;

     }

     @Override

     public List<LuTypeInfo> getCredentialProgramTypes()

             throws OperationFailedException {

         // TODO Auto-generated method stub

         return null;

     }

     @Override

     public List<String> getHonorsByCredentialProgramType(String programType)

             throws DoesNotExistException, InvalidParameterException,

             MissingParameterException, OperationFailedException {

         // TODO Auto-generated method stub

         return null;

     }

     @Override

     public HonorsProgramInfo getHonorsProgram(String honorsProgramId)

             throws DoesNotExistException, InvalidParameterException,

             MissingParameterException, OperationFailedException,

             PermissionDeniedException {

         // TODO Auto-generated method stub

         return null;

     }

     @Override

     public MajorDisciplineInfo getMajorDiscipline(String majorDisciplineId)

             throws DoesNotExistException, InvalidParameterException,

             MissingParameterException, OperationFailedException,

             PermissionDeniedException {

         MajorDisciplineInfo majorDiscipline = null;

         try {

             CluInfo clu = luService.getClu(majorDisciplineId);

             if ( ! ProgramAssemblerConstants.MAJOR_DISCIPLINE.equals(clu.getType()) ) {

                 throw new DoesNotExistException("Specified CLU is not a Major Discipline");

             }

             majorDiscipline = majorDisciplineAssembler.assemble(clu, null, false);

         } catch (AssemblyException e) {

             LOG.error("Error assembling MajorDiscipline", e);

             throw new OperationFailedException("Error assembling MajorDiscipline");

         }

         return majorDiscipline;

                 // comment out the above, and uncomment below to get auto-generated data

         // (and vice-versa)

 //                try {

 //                        return new MajorDisciplineDataGenerator().getMajorDisciplineInfoTestData();

 //                } catch (Exception e) {

 //                        return null;

 //                }

         }

         @Override

         public List<String> getMajorIdsByCredentialProgramType(String programType)

                         throws DoesNotExistException, InvalidParameterException,

                         MissingParameterException, OperationFailedException {

                 // TODO Auto-generated method stub

                 return null;

         }

         @Override

         public MinorDisciplineInfo getMinorDiscipline(String minorDisciplineId)

                         throws DoesNotExistException, InvalidParameterException,

                         MissingParameterException, OperationFailedException,

                         PermissionDeniedException {

                 // TODO Auto-generated method stub

                 return null;

         }

         @Override

         public List<String> getMinorsByCredentialProgramType(String programType)

                         throws DoesNotExistException, InvalidParameterException,

                         MissingParameterException, OperationFailedException {

                 // TODO Auto-generated method stub

                 return null;

         }

         @Override

         public ProgramRequirementInfo getProgramRequirement(String programRequirementId, String nlUsageTypeKey, String language) throws DoesNotExistException,

                         InvalidParameterException, MissingParameterException,

                         OperationFailedException, PermissionDeniedException {

                 checkForMissingParameter(programRequirementId, "programRequirementId");

                 CluInfo clu = luService.getClu(programRequirementId);

                 if (!ProgramAssemblerConstants.PROGRAM_REQUIREMENT.equals(clu.getType())) {

                         throw new DoesNotExistException("Specified CLU is not a Program Requirement");

                 }

                 try {

                         ProgramRequirementInfo progReqInfo = programRequirementAssembler.assemble(clu, null, false);

                         StatementTreeViewInfo statement = progReqInfo.getStatement();

 //                        if (nlUsageTypeKey != null && language != null) {

 //                                statement.setNaturalLanguageTranslation(statementService.getNaturalLanguageForStatement(statement.getId(), nlUsageTypeKey, language));

 //                        }

                         return progReqInfo;

                 } catch (AssemblyException e) {

             LOG.error("Error assembling program requirement", e);

             throw new OperationFailedException("Error assembling program requirement: " + e.getMessage(), e);

                 }

         }

         @Override

         public List<ProgramVariationInfo> getVariationsByMajorDisciplineId(

                         String majorDisciplineId) throws DoesNotExistException,

                         InvalidParameterException, MissingParameterException,

                         OperationFailedException {

             List<ProgramVariationInfo> pvInfos = new ArrayList<ProgramVariationInfo>();

             try {

                             List<CluInfo> clus = luService.getRelatedClusByCluId(majorDisciplineId, ProgramAssemblerConstants.HAS_PROGRAM_VARIATION);

                         if(clus != null && clus.size() > 0){

                                 for(CluInfo clu : clus){

                                         ProgramVariationInfo pvInfo = majorDisciplineAssembler.getProgramVariationAssembler().assemble(clu, null, false);

                                         if(pvInfo != null){

                                                 pvInfos.add(pvInfo);

                                         }

                                 }

                         }

                     } catch (AssemblyException e) {

                         LOG.error("Error assembling ProgramVariation", e);

                         throw new OperationFailedException("Error assembling ProgramVariation");

                     }

         return pvInfos;

     }

     @Override

     @Transactional(readOnly=false)

         public CredentialProgramInfo updateCredentialProgram(

             CredentialProgramInfo credentialProgramInfo)

             throws DataValidationErrorException, DoesNotExistException,

             InvalidParameterException, MissingParameterException,

             VersionMismatchException, OperationFailedException,

             PermissionDeniedException {

         checkForMissingParameter(credentialProgramInfo, "CredentialProgramInfo");

         // Validate

         List<ValidationResultInfo> validationResults = validateCredentialProgram("OBJECT", credentialProgramInfo);

         if (null != validationResults && validationResults.size() > 0) {

             throw new DataValidationErrorException("Validation error!", validationResults);

         }

         try {

             return processCredentialProgramInfo(credentialProgramInfo, NodeOperation.UPDATE);

         } catch (AssemblyException e) {

             LOG.error("Error disassembling Credential Program", e);

             throw new OperationFailedException("Error disassembling Credential Program");

         }

     }

     @Override

     @Transactional(readOnly=false)

         public HonorsProgramInfo updateHonorsProgram(

             HonorsProgramInfo honorsProgramInfo)

             throws DataValidationErrorException, DoesNotExistException,

             InvalidParameterException, MissingParameterException,

             VersionMismatchException, OperationFailedException,

             PermissionDeniedException {

         // TODO Auto-generated method stub

         return null;

     }

     @Override

     @Transactional(readOnly=false)

         public MajorDisciplineInfo updateMajorDiscipline(

             MajorDisciplineInfo majorDisciplineInfo)

             throws DataValidationErrorException, DoesNotExistException,

             InvalidParameterException, MissingParameterException,

             VersionMismatchException, OperationFailedException,

             PermissionDeniedException {

         checkForMissingParameter(majorDisciplineInfo, "MajorDisciplineInfo");

         // Validate

         List<ValidationResultInfo> validationResults = validateMajorDiscipline("OBJECT", majorDisciplineInfo);

         if (null != validationResults && validationResults.size() > 0) {

             throw new DataValidationErrorException("Validation error!", validationResults);

         }

         try {

             return processMajorDisciplineInfo(majorDisciplineInfo, NodeOperation.UPDATE);

         } catch (AssemblyException e) {

             LOG.error("Error disassembling majorDiscipline", e);

             throw new OperationFailedException("Error disassembling majorDiscipline");

         }

     }

     @Override

     @Transactional(readOnly=false)

         public MinorDisciplineInfo updateMinorDiscipline(

             MinorDisciplineInfo minorDisciplineInfo)

             throws DataValidationErrorException, DoesNotExistException,

             InvalidParameterException, MissingParameterException,

             VersionMismatchException, OperationFailedException,

             PermissionDeniedException {

         // TODO Auto-generated method stub

         return null;

     }

     @Override

     @Transactional(readOnly=false)

         public ProgramRequirementInfo updateProgramRequirement(

             ProgramRequirementInfo programRequirementInfo)

             throws DataValidationErrorException, DoesNotExistException,

             InvalidParameterException, MissingParameterException,

             VersionMismatchException, OperationFailedException,

             PermissionDeniedException {

             checkForMissingParameter(programRequirementInfo, "programRequirementInfo");

         // Validate

         List<ValidationResultInfo> validationResults = validateProgramRequirement("OBJECT", programRequirementInfo);

         if (isNotEmpty(validationResults)) {

                 throw new DataValidationErrorException("Validation error!", validationResults);

         }

         try {

                         return processProgramRequirement(programRequirementInfo, NodeOperation.UPDATE);

                 } catch (AssemblyException e) {

                         throw new OperationFailedException("Unable to update ProgramRequirement", e);

                 }

     }

     @Override

     public List<ValidationResultInfo> validateCredentialProgram(

             String validationType, CredentialProgramInfo credentialProgramInfo)

             throws InvalidParameterException,

             MissingParameterException, OperationFailedException {

         List<ValidationResultInfo> validationResults = new ArrayList<ValidationResultInfo>();

 //        if ( ! ProgramAssemblerConstants.DRAFT.equals(credentialProgramInfo.getState()) ) {

             ObjectStructureDefinition objStructure = this.getObjectStructure(CredentialProgramInfo.class.getName());

             Validator validator = validatorFactory.getValidator();

             validationResults.addAll(validator.validateObject(credentialProgramInfo, objStructure));

 //        }

         return validationResults;

     }

     @Override

     public List<ValidationResultInfo> validateHonorsProgram(

             String validationType, HonorsProgramInfo honorsProgramInfo)

             throws InvalidParameterException,

             MissingParameterException, OperationFailedException {

         // TODO Auto-generated method stub

         return null;

     }

     @Override

     public List<ValidationResultInfo> validateMajorDiscipline(

             String validationType, MajorDisciplineInfo majorDisciplineInfo)

             throws InvalidParameterException,

             MissingParameterException, OperationFailedException {

         List<ValidationResultInfo> validationResults = new ArrayList<ValidationResultInfo>();

 //        if ( ! ProgramAssemblerConstants.DRAFT.equalsIgnoreCase(majorDisciplineInfo.getState()) ) {

             ObjectStructureDefinition objStructure = this.getObjectStructure(MajorDisciplineInfo.class.getName());

             Validator validator = validatorFactory.getValidator();

             validationResults.addAll(validator.validateObject(majorDisciplineInfo, objStructure));

 //        }

         validateMajorDisciplineAtps(majorDisciplineInfo,validationResults);

         return validationResults;

     }

     @Override

     public List<ValidationResultInfo> validateMinorDiscipline(

             String validationType, MinorDisciplineInfo minorDisciplineInfo)

             throws InvalidParameterException,

             MissingParameterException, OperationFailedException {

         // TODO Auto-generated method stub

         return null;

     }

     @Override

     public List<ValidationResultInfo> validateProgramRequirement(

             String validationType, ProgramRequirementInfo programRequirementInfo)

             throws InvalidParameterException,

             MissingParameterException, OperationFailedException {

         ObjectStructureDefinition objStructure = this.getObjectStructure(ProgramRequirementInfo.class.getName());

         Validator validator = validatorFactory.getValidator();

         List<ValidationResultInfo> validationResults = validator.validateObject(programRequirementInfo, objStructure);

         return validationResults;

     }

     @Override

     public ObjectStructureDefinition getObjectStructure(String objectTypeKey) {

         return dictionaryService.getObjectStructure(objectTypeKey);

     }

     @Override

     public List<String> getObjectTypes() {

         return dictionaryService.getObjectTypes();

     }

     @Override

     public SearchCriteriaTypeInfo getSearchCriteriaType(

             String searchCriteriaTypeKey) throws DoesNotExistException,

             InvalidParameterException, MissingParameterException,

             OperationFailedException {

         // TODO Auto-generated method stub

         return null;

     }

     @Override

     public List<SearchCriteriaTypeInfo> getSearchCriteriaTypes()

             throws OperationFailedException {

         // TODO Auto-generated method stub

         return null;

     }

     @Override

     public SearchResultTypeInfo getSearchResultType(String searchResultTypeKey)

             throws DoesNotExistException, InvalidParameterException,

             MissingParameterException, OperationFailedException {

         // TODO Auto-generated method stub

         return null;

     }

     @Override

     public List<SearchResultTypeInfo> getSearchResultTypes()

             throws OperationFailedException {

         // TODO Auto-generated method stub

         return null;

     }

     @Override

     public SearchTypeInfo getSearchType(String searchTypeKey)

             throws DoesNotExistException, InvalidParameterException,

             MissingParameterException, OperationFailedException {

         // TODO Auto-generated method stub

         return null;

     }

     @Override

     public List<SearchTypeInfo> getSearchTypes()

             throws OperationFailedException {

         // TODO Auto-generated method stub

         return null;

     }

     @Override

     public List<SearchTypeInfo> getSearchTypesByCriteria(

             String searchCriteriaTypeKey) throws DoesNotExistException,

             InvalidParameterException, MissingParameterException,

             OperationFailedException {

         // TODO Auto-generated method stub

         return null;

     }

     @Override

     public List<SearchTypeInfo> getSearchTypesByResult(

             String searchResultTypeKey) throws DoesNotExistException,

             InvalidParameterException, MissingParameterException,

             OperationFailedException {

         // TODO Auto-generated method stub

         return null;

     }

     @Override

     public SearchResult search(SearchRequest searchRequest)

             throws MissingParameterException {

         // TODO Auto-generated method stub

         return null;

     }

     /**

      * Check for missing parameter and throw localized exception if missing

      *

      * @param param

      * @param parameter name

      * @throws MissingParameterException

      */

     private void checkForMissingParameter(Object param, String paramName)

             throws MissingParameterException {

         if (param == null) {

             throw new MissingParameterException(paramName + " can not be null");

         }

     }

     // TODO - when CRUD for a second ProgramInfo is implemented, pull common code up from its process*() and this

     private MajorDisciplineInfo processMajorDisciplineInfo(MajorDisciplineInfo majorDisciplineInfo, NodeOperation operation) throws AssemblyException {

         BaseDTOAssemblyNode<MajorDisciplineInfo, CluInfo> results = majorDisciplineAssembler.disassemble(majorDisciplineInfo, operation);

         invokeServiceCalls(results);

         return results.getBusinessDTORef();

     }

     private CredentialProgramInfo processCredentialProgramInfo(CredentialProgramInfo credentialProgramInfo, NodeOperation operation) throws AssemblyException {

         BaseDTOAssemblyNode<CredentialProgramInfo, CluInfo> results = credentialProgramAssembler.disassemble(credentialProgramInfo, operation);

         invokeServiceCalls(results);

         return results.getBusinessDTORef();

     }

     private ProgramRequirementInfo processProgramRequirement(ProgramRequirementInfo programRequirementInfo, NodeOperation operation) throws AssemblyException {

         BaseDTOAssemblyNode<ProgramRequirementInfo, CluInfo> results = programRequirementAssembler.disassemble(programRequirementInfo, operation);

         invokeServiceCalls(results);

         return results.getBusinessDTORef();

     }

         private void invokeServiceCalls(BaseDTOAssemblyNode<?, CluInfo> results) throws AssemblyException{

         // Use the results to make the appropriate service calls here

         try {

             programServiceMethodInvoker.invokeServiceCalls(results);

         } catch (AssemblyException e) {

                 throw e;

         } catch (Exception e) {

             throw new AssemblyException(e);

         }

     }

     //Spring setters. Used by spring container to inject corresponding dependencies.

     public void setLuService(LuService luService) {

         this.luService = luService;

     }

     public LuService getLuService() {

                 return luService;

         }

         public void setDictionaryService(DictionaryService dictionaryService) {

         this.dictionaryService = dictionaryService;

     }

     public DictionaryService getDictionaryService() {

                 return dictionaryService;

         }

     public void setSearchManager(SearchManager searchManager) {

         this.searchManager = searchManager;

     }

         public SearchManager getSearchManager() {

                 return searchManager;

         }

         public void setMajorDisciplineAssembler(MajorDisciplineAssembler majorDisciplineAssembler) {

         this.majorDisciplineAssembler = majorDisciplineAssembler;

     }

         public MajorDisciplineAssembler getMajorDisciplineAssembler() {

                 return majorDisciplineAssembler;

         }

         public void setCredentialProgramAssembler(

                         CredentialProgramAssembler credentialProgramAssembler) {

                 this.credentialProgramAssembler = credentialProgramAssembler;

         }

         public CredentialProgramAssembler getCredentialProgramAssembler() {

                 return credentialProgramAssembler;

         }

         public void setProgramRequirementAssembler(ProgramRequirementAssembler programRequirementAssembler) {

         this.programRequirementAssembler = programRequirementAssembler;

     }

     public ProgramRequirementAssembler getProgramRequirementAssembler() {

                 return programRequirementAssembler;

         }

         public void setProgramServiceMethodInvoker(BusinessServiceMethodInvoker serviceMethodInvoker) {

         this.programServiceMethodInvoker = serviceMethodInvoker;

     }

     public BusinessServiceMethodInvoker getProgramServiceMethodInvoker() {

                 return programServiceMethodInvoker;

         }

         public void setValidatorFactory(ValidatorFactory validatorFactory) {

         this.validatorFactory = validatorFactory;

     }

         public ValidatorFactory getValidatorFactory() {

                 return validatorFactory;

         }

         public void setCoreProgramAssembler(CoreProgramAssembler coreProgramAssembler) {

                 this.coreProgramAssembler = coreProgramAssembler;

         }

         public CoreProgramAssembler getCoreProgramAssembler() {

                 return coreProgramAssembler;

         }

         private StatusInfo getStatus(){

         StatusInfo status = new StatusInfo();

         status.setSuccess(true);

         return status;

         }

     private CoreProgramInfo processCoreProgramInfo(CoreProgramInfo coreProgramInfo, NodeOperation operation) throws AssemblyException {

         BaseDTOAssemblyNode<CoreProgramInfo, CluInfo> results = coreProgramAssembler.disassemble(coreProgramInfo, operation);

         invokeServiceCalls(results);

         return results.getBusinessDTORef();

     }

     @Override

     @Transactional(readOnly=false)

         public CoreProgramInfo createCoreProgram(CoreProgramInfo coreProgramInfo) throws AlreadyExistsException, DataValidationErrorException, InvalidParameterException, MissingParameterException, OperationFailedException, PermissionDeniedException {

         checkForMissingParameter(coreProgramInfo, "CoreProgramInfo");

         // Validate

         List<ValidationResultInfo> validationResults = validateCoreProgram("OBJECT", coreProgramInfo);

         if (null != validationResults && validationResults.size() > 0) {

             throw new DataValidationErrorException("Validation error!", validationResults);

         }

         try {

             return processCoreProgramInfo(coreProgramInfo, NodeOperation.CREATE);

         } catch (AssemblyException e) {

             LOG.error("Error disassembling CoreProgram", e);

             throw new OperationFailedException("Error disassembling CoreProgram");

         }

     }

         @Override

         @Transactional(readOnly=false)

         public CoreProgramInfo createNewCoreProgramVersion(

                         String coreProgramId, String versionComment)

                         throws DoesNotExistException, InvalidParameterException,

                         MissingParameterException, OperationFailedException,

                         PermissionDeniedException, VersionMismatchException,

                         DataValidationErrorException {

                 //step one, get the original

                 VersionDisplayInfo currentVersion = luService.getCurrentVersion(LuServiceConstants.CLU_NAMESPACE_URI, coreProgramId);

                 CoreProgramInfo originalCoreProgram = getCoreProgram(currentVersion.getId());

                 //Version the Clu

                 CluInfo newVersionClu = luService.createNewCluVersion(coreProgramId, versionComment);

                 try {

                 BaseDTOAssemblyNode<CoreProgramInfo, CluInfo> results;

                 //Integrate changes into the original. (should this just be just the id?)

                         coreProgramAssembler.assemble(newVersionClu, originalCoreProgram, true);

                         //Clear Ids from the original so it will make a copy and do other processing

                         processCopy(originalCoreProgram, currentVersion.getId());

                         //Disassemble the new

                         results = coreProgramAssembler.disassemble(originalCoreProgram, NodeOperation.UPDATE);

                         // Use the results to make the appropriate service calls here

                         programServiceMethodInvoker.invokeServiceCalls(results);

                         return results.getBusinessDTORef();

                 } catch(AssemblyException e) {

                         throw new OperationFailedException("Error creating new MajorDiscipline version",e);

                 } catch (AlreadyExistsException e) {

                         throw new OperationFailedException("Error creating new MajorDiscipline version",e);

                 } catch (DependentObjectsExistException e) {

                         throw new OperationFailedException("Error creating new MajorDiscipline version",e);

                 } catch (CircularRelationshipException e) {

                         throw new OperationFailedException("Error creating new MajorDiscipline version",e);

                 } catch (UnsupportedActionException e) {

                         throw new OperationFailedException("Error creating new MajorDiscipline version",e);

                 } catch (CircularReferenceException e) {

                         throw new OperationFailedException("Error creating new MajorDiscipline version",e);

                 }

         }

         @Override

     @Transactional(readOnly=false)

         public StatusInfo deleteCoreProgram(String coreProgramId) throws DoesNotExistException, InvalidParameterException, MissingParameterException, OperationFailedException, PermissionDeniedException {

 //        try {

 //                CoreProgramInfo coreProgramInfo = getCoreProgram(coreProgramId);

 //

 //            processCoreProgramInfo(coreProgramInfo, NodeOperation.DELETE);

 //

 //            return getStatus();

 //

 //        } catch (AssemblyException e) {

 //            LOG.error("Error disassembling CoreProgram", e);

 //            throw new OperationFailedException("Error disassembling CoreProgram");

 //        }

             throw new OperationFailedException("Deletion of CoreProgram is not supported."); 

     }

     @Override

     public CoreProgramInfo getCoreProgram(String coreProgramId) throws DoesNotExistException, InvalidParameterException, MissingParameterException, OperationFailedException, PermissionDeniedException {

             CoreProgramInfo coreProgramInfo = null;

         try {

             CluInfo clu = luService.getClu(coreProgramId);

             if ( ! ProgramAssemblerConstants.CORE_PROGRAM.equals(clu.getType()) ) {

                 throw new DoesNotExistException("Specified CLU is not a CoreProgram");

             }

             coreProgramInfo = coreProgramAssembler.assemble(clu, null, false);

         } catch (AssemblyException e) {

             LOG.error("Error assembling CoreProgram", e);

             throw new OperationFailedException("Error assembling CoreProgram");

         }

         return coreProgramInfo;

                 // comment out the above, and uncomment below to get auto-generated data

         // (and vice-versa)

 //                try {

 //                        return new CoreProgramDataGenerator().getCoreProgramInfoTestData();

 //                } catch (Exception e) {

 //                        return null;

 //                }

     }

     @Override

     @Transactional(readOnly=false)

         public CoreProgramInfo updateCoreProgram(CoreProgramInfo coreProgramInfo) throws DataValidationErrorException, DoesNotExistException, InvalidParameterException, MissingParameterException, VersionMismatchException, OperationFailedException, PermissionDeniedException {

         checkForMissingParameter(coreProgramInfo, "CoreProgramInfo");

         // Validate

         List<ValidationResultInfo> validationResults = validateCoreProgram("OBJECT", coreProgramInfo);

         if (null != validationResults && validationResults.size() > 0) {

             throw new DataValidationErrorException("Validation error!", validationResults);

         }

         try {

             return processCoreProgramInfo(coreProgramInfo, NodeOperation.UPDATE);

         } catch (AssemblyException e) {

             LOG.error("Error disassembling CoreProgram", e);

             throw new OperationFailedException("Error disassembling CoreProgram");

         }

     }

     @Override

     public List<ValidationResultInfo> validateCoreProgram(String validationType, CoreProgramInfo coreProgramInfo) throws InvalidParameterException, MissingParameterException, OperationFailedException {

         List<ValidationResultInfo> validationResults = new ArrayList<ValidationResultInfo>();

 //        if ( ! ProgramAssemblerConstants.DRAFT.equals(coreProgramInfo.getState()) ) {

                 ObjectStructureDefinition objStructure = this.getObjectStructure(CoreProgramInfo.class.getName());

                 Validator validator = validatorFactory.getValidator();

             validationResults.addAll(validator.validateObject(coreProgramInfo, objStructure));

 //        }

         return validationResults;

     }

         @Override

         @Transactional(readOnly=false)

         public CredentialProgramInfo createNewCredentialProgramVersion(

                         String credentialProgramId, String versionComment)

                         throws DoesNotExistException, InvalidParameterException,

                         MissingParameterException, OperationFailedException,

                         PermissionDeniedException, VersionMismatchException,

                         DataValidationErrorException {

                 //step one, get the original

                 VersionDisplayInfo currentVersion = luService.getCurrentVersion(LuServiceConstants.CLU_NAMESPACE_URI, credentialProgramId);

                 CredentialProgramInfo originaCredentialProgram = getCredentialProgram(currentVersion.getId());

                 //Version the Clu

                 CluInfo newVersionClu = luService.createNewCluVersion(credentialProgramId, versionComment);

                 try {

                 BaseDTOAssemblyNode<CredentialProgramInfo, CluInfo> results;

                 //Integrate changes into the original. (should this just be just the id?)

                         credentialProgramAssembler.assemble(newVersionClu, originaCredentialProgram, true);

                         //Clear Ids from the original so it will make a copy and do other processing

                         processCopy(originaCredentialProgram, currentVersion.getId());

                         //Disassemble the new

                         results = credentialProgramAssembler.disassemble(originaCredentialProgram, NodeOperation.UPDATE);

                         // Use the results to make the appropriate service calls here

                         programServiceMethodInvoker.invokeServiceCalls(results);

                         return results.getBusinessDTORef();

                 } catch(AssemblyException e) {

                         throw new OperationFailedException("Error creating new MajorDiscipline version",e);

                 } catch (AlreadyExistsException e) {

                         throw new OperationFailedException("Error creating new MajorDiscipline version",e);

                 } catch (DependentObjectsExistException e) {

                         throw new OperationFailedException("Error creating new MajorDiscipline version",e);

                 } catch (CircularRelationshipException e) {

                         throw new OperationFailedException("Error creating new MajorDiscipline version",e);

                 } catch (UnsupportedActionException e) {

                         throw new OperationFailedException("Error creating new MajorDiscipline version",e);

                 } catch (CircularReferenceException e) {

                         throw new OperationFailedException("Error creating new MajorDiscipline version",e);

                 }

         }

         @Override

         @Transactional(readOnly=false)

         public StatusInfo setCurrentCoreProgramVersion(String coreProgramId,

                         Date currentVersionStart) throws DoesNotExistException,

                         InvalidParameterException, MissingParameterException,

                         IllegalVersionSequencingException, OperationFailedException,

                         PermissionDeniedException {

                 StatusInfo status = luService.setCurrentCluVersion(coreProgramId, currentVersionStart);

                 return status;

         }

         @Override

         @Transactional(readOnly=false)

         public StatusInfo setCurrentCredentialProgramVersion(

                         String credentialProgramId, Date currentVersionStart)

                         throws DoesNotExistException, InvalidParameterException,

                         MissingParameterException, IllegalVersionSequencingException,

                         OperationFailedException, PermissionDeniedException {

                 StatusInfo status = luService.setCurrentCluVersion(credentialProgramId, currentVersionStart);

                 return status;

         }

         @Override

         public VersionDisplayInfo getCurrentVersion(String refObjectTypeURI,

                         String refObjectId) throws DoesNotExistException,

                         InvalidParameterException, MissingParameterException,

                         OperationFailedException, PermissionDeniedException {

                 if(ProgramServiceConstants.PROGRAM_NAMESPACE_MAJOR_DISCIPLINE_URI.equals(refObjectTypeURI)){

                         return luService.getCurrentVersion(LuServiceConstants.CLU_NAMESPACE_URI, refObjectId);

                 }

                 throw new InvalidParameterException("Object type: " + refObjectTypeURI + " is not known to this implementation");

         }

         @Override

         public VersionDisplayInfo getCurrentVersionOnDate(String refObjectTypeURI,

                         String refObjectId, Date date) throws DoesNotExistException,

                         InvalidParameterException, MissingParameterException,

                         OperationFailedException, PermissionDeniedException {

                 if(ProgramServiceConstants.PROGRAM_NAMESPACE_MAJOR_DISCIPLINE_URI.equals(refObjectTypeURI)){

                         return luService.getCurrentVersionOnDate(LuServiceConstants.CLU_NAMESPACE_URI, refObjectId, date);

                 }

                 throw new InvalidParameterException("Object type: " + refObjectTypeURI + " is not known to this implementation");

         }

         @Override

         public VersionDisplayInfo getFirstVersion(String refObjectTypeURI,

                         String refObjectId) throws DoesNotExistException,

                         InvalidParameterException, MissingParameterException,

                         OperationFailedException, PermissionDeniedException {

                 if(ProgramServiceConstants.PROGRAM_NAMESPACE_MAJOR_DISCIPLINE_URI.equals(refObjectTypeURI)){

                         return luService.getFirstVersion(LuServiceConstants.CLU_NAMESPACE_URI, refObjectId);

                 }

                 throw new InvalidParameterException("Object type: " + refObjectTypeURI + " is not known to this implementation");

         }

         @Override

         public VersionDisplayInfo getLatestVersion(String refObjectTypeURI,

                         String refObjectId) throws DoesNotExistException,

                         InvalidParameterException, MissingParameterException,

                         OperationFailedException, PermissionDeniedException {

                 if(ProgramServiceConstants.PROGRAM_NAMESPACE_MAJOR_DISCIPLINE_URI.equals(refObjectTypeURI)){

                         return luService.getLatestVersion(LuServiceConstants.CLU_NAMESPACE_URI, refObjectId);

                 }

                 throw new InvalidParameterException("Object type: " + refObjectTypeURI + " is not known to this implementation");

         }

         @Override

         public VersionDisplayInfo getVersionBySequenceNumber(

                         String refObjectTypeURI, String refObjectId, Long sequence)

                         throws DoesNotExistException, InvalidParameterException,

                         MissingParameterException, OperationFailedException,

                         PermissionDeniedException {

                 if(ProgramServiceConstants.PROGRAM_NAMESPACE_MAJOR_DISCIPLINE_URI.equals(refObjectTypeURI)){

                         return luService.getVersionBySequenceNumber(LuServiceConstants.CLU_NAMESPACE_URI, refObjectId, sequence);

                 }

                 throw new InvalidParameterException("Object type: " + refObjectTypeURI + " is not known to this implementation");