private bool SetMandatoryFields(IMigrationAction action, ref OAdEntity newRecord, out List <string> processedFields)
        {
            XmlNodeList columns = action.MigrationActionDescription.SelectNodes("/WorkItemChanges/Columns/Column");

            if (null == columns)
            {
                throw new MigrationException(ClearQuestResource.ClearQuest_Error_InvalidActionDescription, action.ActionId);
            }

            StringBuilder updateLog = new StringBuilder();

            PrintUpdateLogHeader(action, updateLog);
            processedFields = new List <string>();

            foreach (XmlNode columnData in columns)
            {
                string stringVal = columnData.FirstChild.InnerText;
                string fieldName = columnData.Attributes["ReferenceName"].Value;

                Debug.Assert(!string.IsNullOrEmpty(fieldName),
                             "Field ReferenceName is absent in the Migration Description");


                OAdFieldInfo aFieldInfo        = CQWrapper.GetEntityFieldValue(newRecord, fieldName);
                int          fieldRequiredness = CQWrapper.GetRequiredness(aFieldInfo);
                if (fieldRequiredness != CQConstants.MANDATORY)
                {
                    // skipping all non-mandatory fields
                    continue;
                }

                string originalFieldValue = CQWrapper.GetFieldValue(aFieldInfo);

                int attempt1Count = 0;
                if (!SetFieldValue(action, newRecord, fieldName, stringVal, ref attempt1Count))
                {
                    return(false);
                }
                AddFieldToUpdateLog(fieldName, stringVal, updateLog);
                processedFields.Add(fieldName);
            }

            AddLineToUpdateLog(updateLog);
            int attempt2Count = 0;

            if (!SetFieldValue(action, newRecord, NoteEntryFieldName, updateLog.ToString(), ref attempt2Count))
            {
                return(false);
            }

            return(true);
        }
Ejemplo n.º 2
0
 internal static object[] GetFieldValueAsList(OAdFieldInfo fldInfo)
 {
     object[] returnval = null;
     try
     {
         returnval = (object[])fldInfo.GetValueAsList();
     }
     catch (COMException ex)
     {
         InteropErrorHandler.HandleCQException(ex);
     }
     return(returnval);
 }
Ejemplo n.º 3
0
        internal static OAdFieldInfo GetEntityFieldValue(OAdEntity cqEntity, string fldName)
        {
            OAdFieldInfo retval = null;

            try
            {
                retval = (OAdFieldInfo)cqEntity.GetFieldValue(fldName);
            }
            catch (COMException ex)
            {
                InteropErrorHandler.HandleCQException(ex);
            }
            return(retval);
        }
Ejemplo n.º 4
0
        internal static int GetRequiredness(OAdFieldInfo fldInfo)
        {
            int retVal = int.MinValue;

            try
            {
                retVal = fldInfo.GetRequiredness();
            }
            catch (COMException ex)
            {
                InteropErrorHandler.HandleCQException(ex);
            }
            return(retVal);
        }
Ejemplo n.º 5
0
        internal static int GetFieldValueStatus(OAdFieldInfo fldInfo)
        {
            int returnval = 0;

            try
            {
                returnval = fldInfo.GetValueStatus();
            }
            catch (COMException ex)
            {
                InteropErrorHandler.HandleCQException(ex);
            }
            return(returnval);
        }
Ejemplo n.º 6
0
        internal static string GetFieldValue(OAdFieldInfo fldInfo)
        {
            string returnval = null;

            try
            {
                returnval = fldInfo.GetValue();
            }
            catch (COMException ex)
            {
                InteropErrorHandler.HandleCQException(ex);
            }
            return(returnval);
        }
Ejemplo n.º 7
0
        internal static int GetFieldType(OAdFieldInfo fldInfo)
        {
            int retval = 0;

            try
            {
                retval = fldInfo.GetType();
            }
            catch (COMException ex)
            {
                HandleCQException(ex);
            }
            return(retval);
        }
Ejemplo n.º 8
0
        } // end of CQEntityRec CTor

        /// <summary>
        /// Populate the current record from CQ if its not already in Currituck
        /// and also process all its references (recursively), Links, History and Attachments
        /// Else just sets the currituck id for future reference
        /// </summary>
        public bool Populate()
        {
            bool partiallyMigrated = false;
            // first check if it exists in the memory cache
            CQEntity    currentEntityRecords = m_cqParams.entityRecords[m_entityName];
            CQEntityRec lookupEntity         = currentEntityRecords.FindEntityRec(m_entityName, m_dbid);

            if (lookupEntity != null)
            {
                // record already populated..
                Logger.Write(LogSource.CQ, TraceLevel.Verbose, "Already populated record '{0}' for Entity '{1}', DBID:{2}",
                             lookupEntity.SourceId, lookupEntity.EntityName, lookupEntity.DBID);
                return(true);
            }

            m_CQEntity = CQWrapper.GetEntityByDbId(m_cqParams.cqSession, m_entityName, m_dbid);

            // get the source id
            m_sourceId = CQWrapper.GetEntityDisplayName(m_CQEntity);
            Logger.Write(LogSource.CQ, TraceLevel.Verbose, UtilityMethods.Format(CQResource.CQ_PROCESSING_REC, m_sourceId));

            // check if it exist in currituck using static API
            VSTSWorkItemHelper wiHelper  = (VSTSWorkItemHelper)m_MySchemaMap.vstsHelper;
            ArrayList          checkList = new ArrayList();

            checkList.Add(new WorkItemNameValueRelation(CommonConstants.VSTSSrcIdField, m_sourceId));
            checkList.Add(new WorkItemNameValueRelation(CommonConstants.VSTSSrcDbField, m_cqParams.uniqueInstId));

            wiHelper = (VSTSWorkItemHelper)m_MySchemaMap.vstsHelper;
            if (wiHelper.IsWIMigrated(checkList) == true)
            {
                // need not to load the data from CQ..
                // just set the currituck id
                // not going to update this bug from CQ->Currituck even
                // if it is updated.. just get out from here as my population is done
                // with minimal required stuff
                string warningMsg = UtilityMethods.Format(CQResource.CQ_REC_MIGRATED, m_sourceId);
                Logger.Write(LogSource.CQ, TraceLevel.Warning, warningMsg);
                PostMigrationReport.WriteIssue(m_MySchemaMap.entity, m_MySchemaMap.WIT,
                                               Stats.MigrationStatus.Skipped,
                                               ReportIssueType.Warning,
                                               String.Empty,
                                               m_sourceId, IssueGroup.Wi, warningMsg);

                m_WITId = wiHelper.WorkItemId;
                //compact current object
                CompactMe();
                return(true);
            }
            else if (wiHelper.IsCurrentWorkItemValid() == true)
            {
                // work item is already there.. partially migrated
                partiallyMigrated = true;
            }

#if DEBUG
            CommonConstants.NoOfBugs++;
#endif
            // create the required data structures
            m_imWorkItem = new InMemoryWorkItem();
            string fldName;

            OAdEntityDef curEntityDef = CQWrapper.GetEntityDef(m_cqParams.cqSession, m_entityName);
            Logger.Write(LogSource.CQ, TraceLevel.Verbose, "Adding record for Entity {0}, Record {1}",
                         m_entityName, CQWrapper.GetEntityDisplayName(m_CQEntity));

            object[] fields = (object[])CQWrapper.GetEntityFieldNames(m_CQEntity);
            foreach (object fld in fields)
            {
                fldName = (string)fld;
                if (CQConstants.InternalFieldTypes.ContainsKey(fldName))
                {
                    // these are internal clearquest fields
                    // we dont want to migrate these
                    Logger.Write(LogSource.CQ, TraceLevel.Info, "Skipping Internal Field '{0}' while migrating data for entity {1}",
                                 fldName, m_entityName);
                    continue;
                }
                {
                    // process this field only if it exists in the "from" side of Field Map
                    OAdFieldInfo fldInfo     = CQWrapper.GetEntityFieldValue(m_CQEntity, fldName);
                    int          cqFieldType = CQWrapper.GetFieldType(fldInfo);

                    switch (cqFieldType)
                    {
                    case CQConstants.FIELD_ID:
                    case CQConstants.FIELD_SHORT_STRING:
                    case CQConstants.FIELD_INT:
                    {
                        string fldValue = CQWrapper.GetFieldValue(fldInfo);
                        if (fldValue != null)
                        {
                            m_imWorkItem.InitialView.Add(fldName, fldValue);
                        }
                    }
                    break;

                    case CQConstants.FIELD_MULTILINE_STRING:
                    {
                        string fldValue = CQWrapper.GetFieldValue(fldInfo);
                        if (currentEntityRecords.Entity == null)
                        {
                            // build entity to get the list of allowed/suggested values
                            currentEntityRecords.Entity = CQWrapper.BuildEntity(m_cqParams.cqSession, currentEntityRecords.EntityName);
                        }
                        object[] choices = (object[])CQWrapper.GetFieldChoiceList(currentEntityRecords.Entity, fldName);
                        if (choices != null && choices.Length > 0)
                        {
                            // Multi Line String with List of Allowed/Suggested Values.. replace all '\n' with comma
                            // fix for bug# 429098
                            if (fldValue != null)
                            {
                                fldValue = fldValue.Replace("\n", ",");
                            }
                        }

                        /* no conversion shall be required.. bug# 20219 - shall be rendered in HTML as it is
                         *  // hack for Notes_Log & Description field.. Shall be converted to HTML (bug#429032)
                         *  if (fldName.Equals("Notes_Log", StringComparison.OrdinalIgnoreCase) ||
                         *      fldName.Equals("Description", StringComparison.OrdinalIgnoreCase))
                         *  {
                         *      fldValue = VSTSUtil.ConvertTextToHtml(fldValue);
                         *  }
                         */
                        m_imWorkItem.InitialView.Add(fldName, fldValue);
                    }
                    break;

                    case CQConstants.FIELD_DATE_TIME:
                    {
                        string fldValue = CQWrapper.GetFieldValue(fldInfo);
                        if (fldValue != null)
                        {
                            // the time returned from CQ API is the local time..
                            DateTime fldVal = DateTime.Parse(fldValue, CultureInfo.CurrentCulture);

                            //convert it in UTC
                            DateTime utcTime = CQConverterUtil.ConvertLocalToUTC(fldVal);
                            Logger.Write(LogSource.CQ, TraceLevel.Verbose,
                                         "Field [{0}], CQ Time [{1}], UTC Time [{2}]",
                                         fldName, fldVal.ToString(), utcTime.ToString());

                            m_imWorkItem.InitialView.Add(fldName, utcTime);
                        }
                        else
                        {
                            Logger.Write(LogSource.CQ, TraceLevel.Info, "Got null value for field {0}", fldName);
                        }
                    }
                    break;

                    case CQConstants.FIELD_REFERENCE:
                    {
                        // get the current entity def handle
                        OAdEntityDef refEntityDef  = CQWrapper.GetFieldReferenceEntityDef(curEntityDef, fldName);
                        string       refEntityName = CQWrapper.GetEntityDefName(refEntityDef);

                        // special handling for users.. add the user field value also..
                        // we dont want to create a link in this case..
                        // just add the field value pair in IMWorkItem.. and
                        // user map will be applied while saving
                        if (TFStringComparer.WorkItemType.Equals(refEntityName, "users"))
                        {
                            if (CQWrapper.GetFieldValueStatus(fldInfo) == (int)CQConstants.FieldStatus.HAS_VALUE)
                            {
                                // single value required
                                string refFldVal = CQWrapper.GetFieldValue(fldInfo);
                                m_imWorkItem.InitialView.Add(fldName, refFldVal);
                            }
                        }
                        else if (m_cqParams.allowedEntities.ContainsKey(refEntityName))
                        {
                            int valueStatus = CQWrapper.GetFieldValueStatus(fldInfo);
                            Logger.WriteIf((valueStatus != (int)CQConstants.FieldStatus.HAS_VALUE), LogSource.CQ,
                                           TraceLevel.Info, "No Value for Referenced field {0} in Entity {1}",
                                           refEntityName, m_entityName);
                            if (valueStatus == (int)CQConstants.FieldStatus.HAS_VALUE)
                            {
                                // single value required
                                string refFldVal = CQWrapper.GetFieldValue(fldInfo);
                                if (String.Equals(refFldVal, SourceId, StringComparison.Ordinal))
                                {
                                    // reference to self.. cannot have a link on to self
                                    string warningMsg = UtilityMethods.Format(CQResource.CQ_SELF_REFERENCE, SourceId, EntityName, fldName);
                                    Logger.Write(LogSource.CQ, TraceLevel.Warning, warningMsg);
                                    PostMigrationReport.WriteIssue(m_MySchemaMap.entity, m_MySchemaMap.WIT,
                                                                   Stats.MigrationStatus.Warning,
                                                                   ReportIssueType.Warning,
                                                                   String.Empty,
                                                                   m_sourceId, IssueGroup.Wi, warningMsg
                                                                   );
                                }
                                else
                                {
                                    m_referencedEntities.Add(new LinkRecord(refEntityName, refFldVal));
                                }
                            }
                        }
                    }
                    break;

                    case CQConstants.FIELD_REFERENCE_LIST:
                    {
                        // get the current entity def handle
                        OAdEntityDef refEntityDef  = CQWrapper.GetFieldReferenceEntityDef(curEntityDef, fldName);
                        string       refEntityName = CQWrapper.GetEntityDefName(refEntityDef);
                        // special handling for user list
                        // we dont want to create a link in this case..
                        // concatenate all the user names separated by comma
                        // NO USER MAP WILL BE APPLIED WHILE SAVING (bug#400276)
                        if (TFStringComparer.WorkItemType.Equals(refEntityName, "users"))
                        {
                            if (CQWrapper.GetFieldValueStatus(fldInfo) == (int)CQConstants.FieldStatus.HAS_VALUE)
                            {
                                object[]      refFldValues = CQWrapper.GetFieldValueAsList(fldInfo);
                                StringBuilder userList     = new StringBuilder();
                                for (int valueIndex = 0; valueIndex < refFldValues.Length; valueIndex++)
                                {
                                    object refFldObj = refFldValues[valueIndex];
                                    if (valueIndex > 0)
                                    {
                                        userList.Append(",");
                                    }

                                    userList.Append((string)refFldObj);
                                }
                                m_imWorkItem.InitialView.Add(fldName, userList.ToString());
                            }
                        }
                        else if (m_cqParams.allowedEntities.ContainsKey(refEntityName))
                        {
                            int valueStatus = CQWrapper.GetFieldValueStatus(fldInfo);
                            Logger.WriteIf((valueStatus != (int)CQConstants.FieldStatus.HAS_VALUE), LogSource.CQ,
                                           TraceLevel.Info, "No Value for Referenced field {0} in Entity {1}",
                                           fldName, m_entityName);
                            if (valueStatus == (int)CQConstants.FieldStatus.HAS_VALUE)
                            {
                                // value list expected
                                object[] refFldValues = CQWrapper.GetFieldValueAsList(fldInfo);
                                foreach (object refFldObj in refFldValues)
                                {
                                    string refFldVal = (string)refFldObj;
                                    if (String.Equals(refFldVal, SourceId, StringComparison.Ordinal))
                                    {
                                        // reference to self.. cannot have a link on to self
                                        string warningMsg = UtilityMethods.Format(CQResource.CQ_SELF_REFERENCE, SourceId, EntityName, fldName);
                                        Logger.Write(LogSource.CQ, TraceLevel.Warning, warningMsg);
                                        PostMigrationReport.WriteIssue(m_MySchemaMap.entity, m_MySchemaMap.WIT,
                                                                       Stats.MigrationStatus.Warning,
                                                                       ReportIssueType.Warning,
                                                                       String.Empty,
                                                                       m_sourceId, IssueGroup.Wi, warningMsg);
                                    }
                                    else
                                    {
                                        m_referencedEntities.Add(new LinkRecord(refEntityName, refFldVal));
                                    }
                                }
                            }
                        }
                    }
                    break;

                    case CQConstants.FIELD_ATTACHMENT_LIST:
                    case CQConstants.FIELD_STATE:
                    case CQConstants.FIELD_JOURNAL:
                    case CQConstants.FIELD_DBID:
                    case CQConstants.FIELD_STATETYPE:
                    case CQConstants.FIELD_RECORDTYPE:
                        Logger.Write(LogSource.CQ, TraceLevel.Info, "Skipping the Field migration for Internal Field Type '{0}'",
                                     cqFieldType);
                        // not migrating these fields as they are CQ internal fields
                        continue;

                    default:
                        Logger.Write(LogSource.CQ, TraceLevel.Info, "Skipping the Field migration for Unkknown Field Type '{0}'",
                                     cqFieldType);
                        break;
                    }
                }
            } // end of foreachfields

            // add the source id and db separately
            m_imWorkItem.InitialView.Add(CommonConstants.VSTSSrcIdField, m_sourceId);
            m_imWorkItem.InitialView.Add(CommonConstants.VSTSSrcDbField, m_cqParams.uniqueInstId);

            // use vstshelper to migrate the data
            wiHelper = (VSTSWorkItemHelper)m_MySchemaMap.vstsHelper;
            wiHelper.IsWIMigrated(checkList);

            // get attachments in the imworkitem
            ProcessAttachments();

            // history processing will use same imWorkItem for first history info
            // and create other history indexes
            int migratedHistory = 0;
            if (wiHelper.IsCurrentWorkItemValid())
            {
                migratedHistory = wiHelper.GetCurrentWorkItemHistoryCount();
                if (migratedHistory > 0)
                {
                    // We are going for incremental migration. And as we stuff first history item of a CQBug
                    // into InitialView itself, actual no. of migrated history is one more than the value of
                    // the "Migration Status" field. So increment by one.
                    ++migratedHistory;
                }
            }

            ArrayList historyItems = ProcessHistory(m_imWorkItem.InitialView, migratedHistory);

            Logger.Write(LogSource.CQ, TraceLevel.Verbose, "Dumping initial view for {0}", m_sourceId);
            foreach (object key in m_imWorkItem.InitialView.Keys)
            {
                Logger.Write(LogSource.CQ, TraceLevel.Verbose, "{0} - {1}", key, m_imWorkItem.InitialView[key]);
            }

            bool initialViewStatus = true;
            try
            {
                if (!partiallyMigrated)
                {
                    // if some history items or links are left to be migrated.. leave the bug as opened..
                    if (historyItems.Count > 0 || m_referencedEntities.Count > 0)
                    {
                        Logger.Write(LogSource.CQ, TraceLevel.Verbose, "Creating initial view of {0} .. {1} Histories, {2} Links pending",
                                     SourceId, historyItems.Count, m_referencedEntities.Count);
                        // create the record and keep it open for history editing
                        initialViewStatus = wiHelper.CreateInitialViewOfWorkItem(m_sourceId, m_imWorkItem, false);
                    }
                    else
                    {
                        Logger.Write(LogSource.CQ, TraceLevel.Verbose, "Creating initial view of {0}", SourceId);
                        // create all the entries in the record and set the status to done
                        initialViewStatus = wiHelper.CreateInitialViewOfWorkItem(m_sourceId, m_imWorkItem, true);
                    }
                }
            }
            catch (Exception ex)
            {
                // creation of work item failed
                string errMsg = UtilityMethods.Format(CQResource.CQ_WI_CREATION_FAILED, SourceId, ex.Message);
                CQConverter.ReportWorkItemFailure(errMsg, SourceId, m_MySchemaMap.entity, m_MySchemaMap.WIT,
                                                  m_cqParams.exitOnError);
                if (m_cqParams.exitOnError == true)
                {
                    throw new ConverterException(errMsg);
                }
                else
                {
                    // continue with another work item
                    // need to skip this work item..
                    m_WITId = -1;
                    CompactMe();
                    return(false);
                }
            }
            finally
            {
            }

            // get back currituck id and store in this
            m_WITId = wiHelper.WorkItemId;

            // store the handle of work item to restore the state of work item helper back to
            // working work item which may get changed because of processing links recursively
            object workItem = wiHelper.GetCurrentWorkItem();

            // before processing history, clean out attachments.. only if its already migrated
            if (wiHelper.GetCurrentWorkItemAttachmentsCount() == m_imWorkItem.Attachments.Count)
            {
                m_imWorkItem.Attachments.Clear();
            }

            // add all the links now so that they go as part of history
            bool refRecordStatus = true;
            foreach (LinkRecord linkRec in m_referencedEntities)
            {
                if (AddReferenceRecord(linkRec) == false)
                {
                    refRecordStatus = false; // once false always false
                }
            }

            // process duplicate records
            if (ProcessDuplicates(m_cqParams) == false)
            {
                refRecordStatus = false;
            }

            bool writeHistoryPassed = true;
            wiHelper.SetCurrentWorkItem(workItem);
            if (historyItems.Count > 0 || m_imWorkItem.Links.Count > 0 || m_imWorkItem.Attachments.Count > 0)
            {
                m_imWorkItem.HistoryItems = historyItems;

                try
                {
                    writeHistoryPassed = wiHelper.WriteHistoryItems(m_sourceId, m_imWorkItem,
                                                                    refRecordStatus && initialViewStatus);
                    if (!writeHistoryPassed)
                    {
                        // Bug#59861: In the case of the partially migrated bug,
                        // converter says all bugs migrated successfully in
                        // summary, but in error section it says one bug  failed
                        // due to attachment size issue. This issue has already
                        // been written to the report. Just need to update the
                        // statistics info.
                        PostMigrationReport.WriteIssue(m_MySchemaMap.entity,
                                                       m_MySchemaMap.WIT,
                                                       Stats.MigrationStatus.Failed,
                                                       ReportIssueType.Info,
                                                       null, m_sourceId, IssueGroup.Wi,
                                                       null);
                    }
                    // set the bug migration status to done only if there were no
                    // problems with  initial view and any of the references
                    if ((!writeHistoryPassed || !refRecordStatus || !initialViewStatus) &&
                        m_cqParams.exitOnError)
                    {
                        // stop processing more records
                        CompactMe();
                        return(false);
                    }
                }
                catch (Exception ex)
                {
                    // creation of history failed
                    string errMsg = UtilityMethods.Format(CQResource.CQ_WI_MIG_FAILED, SourceId, ex.Message);
                    CQConverter.ReportWorkItemFailure(errMsg, SourceId, m_MySchemaMap.entity, m_MySchemaMap.WIT,
                                                      m_cqParams.exitOnError);
                    if (m_cqParams.exitOnError == true)
                    {
                        throw new ConverterException(errMsg);
                    }
                    else
                    {
                        // continue with another work item.. reporting this failure
                        CompactMe();
                        return(false);
                    }
                } // end of catch
                finally
                {
                }
            } // end of history items processing

            // add to pass count
            ConverterMain.MigrationReport.Statistics.NumberOfItems++;

            // add to per work item type section
            if (writeHistoryPassed)
            {
                PostMigrationReport.WriteIssue(m_MySchemaMap.entity, m_MySchemaMap.WIT,
                                               Stats.MigrationStatus.Passed,
                                               ReportIssueType.Info,
                                               null, m_sourceId, IssueGroup.Wi, null);
            }
            //compact current object
            CompactMe();
            return(true);
        } // end of Populate()
        public bool Update(
            ClearQuestMigrationContext migrationContext,
            Session cqSession,
            OAdEntity hostRecord,
            LinkChangeAction linkChangeAction)
        {
            if (null == linkChangeAction)
            {
                throw new ArgumentNullException("linkChangeAction");
            }

            if (!linkChangeAction.Link.LinkType.ReferenceName.Equals(REFERENCE_NAME))
            {
                throw new ArgumentException("Link type mismatch.");
            }

            string childRecEntityDefName;

            if (!ClearQuestRecordArtifactHandler.TryExtractRecordDefName(linkChangeAction.Link.TargetArtifact,
                                                                         out childRecEntityDefName))
            {
                return(false);
            }
            string childRecDispName;

            if (!ClearQuestRecordArtifactHandler.TryExtractRecordDispName(linkChangeAction.Link.TargetArtifact,
                                                                          out childRecDispName))
            {
                return(false);
            }

            OAdEntity childEntity = CQWrapper.GetEntity(cqSession, childRecEntityDefName, childRecDispName);

            if (null == childEntity)
            {
                return(false);
            }

            // check if hostRecord already has a duplicate of this childRecord
            bool duplicateAlreadyExist = HasDuplicateRecord(hostRecord, childRecEntityDefName, childRecDispName);

            // find out the child entity's current state
            // find the current state
            string childEntityDefName = CQWrapper.GetEntityDefName(childEntity);

            OAdFieldInfo aFldInfo       = CQWrapper.GetEntityFieldValue(childEntity, migrationContext.GetStateField(childEntityDefName));
            string       srcState       = CQWrapper.GetFieldValue(aFldInfo);
            OAdEntityDef childEntityDef = CQWrapper.GetEntityDef(cqSession, childEntityDefName);

            if (linkChangeAction.ChangeActionId.Equals(WellKnownChangeActionId.Add))
            {
                if (duplicateAlreadyExist)
                {
                    // [teyang] TODO
                    return(false);
                }

                string[] changeActionNames = CQUtilityMethods.FindAllActionNameByTypeAndSourceState(
                    childEntityDef,
                    srcState,
                    CQConstants.ACTION_DUPLICATE);

                string changeActionName = string.Empty;
                if (changeActionNames.Length == 0)
                {
                    // [teyang] TODO conflict
                }
                else if (changeActionNames.Length > 1)
                {
                    // [teyang] TODO conflict
                }
                else
                {
                    changeActionName = changeActionNames[0];
                }

                if (!string.IsNullOrEmpty(changeActionName))
                {
                    CQWrapper.MarkEntityAsDuplicate(cqSession, childEntity, hostRecord, changeActionName);

                    string retVal = CQWrapper.Validate(childEntity);
                    if (string.IsNullOrEmpty(retVal))
                    {
                        // [teyang] TODO conflict
                    }

                    retVal = CQWrapper.Commmit(childEntity);
                    if (string.IsNullOrEmpty(retVal))
                    {
                        // [teyang] TODO conflict
                    }
                }
            }
            else if (linkChangeAction.ChangeActionId.Equals(WellKnownChangeActionId.Delete))
            {
                if (!duplicateAlreadyExist)
                {
                    // [teyang] TODO
                    return(false);
                }

                string[] changeActionNames = CQUtilityMethods.FindAllActionNameByTypeAndSourceState(
                    childEntityDef,
                    srcState,
                    CQConstants.ACTION_UNDUPLICATE);

                string changeActionName = string.Empty;
                if (changeActionNames.Length == 0)
                {
                    // [teyang] TODO conflict
                }
                else if (changeActionNames.Length > 1)
                {
                    // [teyang] TODO conflict
                }
                else
                {
                    changeActionName = changeActionNames[0];
                }

                if (!string.IsNullOrEmpty(changeActionName))
                {
                    CQWrapper.UnmarkEntityAsDuplicate(cqSession, childEntity, changeActionName);

                    string retVal = CQWrapper.Validate(childEntity);
                    if (string.IsNullOrEmpty(retVal))
                    {
                        // [teyang] TODO conflict
                    }

                    retVal = CQWrapper.Commmit(childEntity);
                    if (string.IsNullOrEmpty(retVal))
                    {
                        // [teyang] TODO conflict
                    }
                }
            }
            else
            {
                //throw new MigrationException(TfsWITAdapterResources.ErrorUnsupportedChangeAction);
            }

            return(true);
        }
        public XmlDocument CreateRecordDesc(
            OAdEntity record,
            string versionStr,
            ClearQuestMigrationContext migrationContext,
            bool isLastRevOfThisSyncCycle)
        {
            string   lastAuthor;
            DateTime lastChangeDate;

            FindLastRevDtls(record, out lastAuthor, out lastChangeDate);

            ClearQuestRecordDescription recordDesc = new ClearQuestRecordDescription();

            recordDesc.CreateHeader(lastAuthor, lastChangeDate, MigrationRecordId, EntityDefName, versionStr, isLastRevOfThisSyncCycle);

            object[] fieldNames = (object[])CQWrapper.GetEntityFieldNames(record);
            foreach (object fldName in fieldNames)
            {
                string fieldName = (string)fldName;
                if (s_skipAlgorithm.SkipField(fieldName))
                {
                    TraceManager.TraceInformation("Skipping Field '{0}' while migrating data for Entity '{1}'",
                                                  fieldName, EntityDefName);
                    continue;
                }

                OAdFieldInfo fldInfo     = CQWrapper.GetEntityFieldValue(record, fieldName);
                int          cqFieldType = CQWrapper.GetFieldType(fldInfo);

                switch (cqFieldType)
                {
                case CQConstants.FIELD_INT:
                case CQConstants.FIELD_ID:
                case CQConstants.FIELD_SHORT_STRING:
                case CQConstants.FIELD_STATE:
                case CQConstants.FIELD_DBID:
                case CQConstants.FIELD_STATETYPE:
                case CQConstants.FIELD_RECORDTYPE:
                {
                    string fldValue = CQWrapper.GetFieldValue(fldInfo);
                    recordDesc.AddField(fieldName, string.Empty, fldValue ?? String.Empty);
                }
                break;

                case CQConstants.FIELD_MULTILINE_STRING:
                {
                    string fldValue = CQWrapper.GetFieldValue(fldInfo);

                    if (migrationContext == null ||
                        !CQStringComparer.FieldName.Equals(migrationContext.NotesLogFieldName, fieldName))
                    {
                        // non-log field
                        try
                        {
                            var aTestEntity = CreateTestEntity(record, migrationContext);

                            object[] choices = (object[])CQWrapper.GetFieldChoiceList(aTestEntity, fieldName);
                            if (choices != null && choices.Length > 0)
                            {
                                // Multi Line String with List of Allowed/Suggested Values.. replace all '\n' with comma
                                // fix for bug# 429098
                                if (fldValue != null)
                                {
                                    fldValue = fldValue.Replace("\n", ",");
                                }
                            }
                        }
                        catch (Exception ex)
                        {
                            // NOTE:
                            // This feature of testing the multiline string choices create a dummy CQ record
                            // The API call CreateTestEntity requires WRITE permission to CQ
                            // If the migration account doesn't have the permission, we will simply use
                            // the field's current value
                            TraceManager.TraceInformation(
                                "Skipping retrieval of Allowed Values for field '{0}' - Write permission is needed. Error: {1}",
                                fieldName, ex.Message);
                        }

                        recordDesc.AddField(fieldName, string.Empty, fldValue);
                    }
                    else if (fldValue != null)
                    {
                        // log field

                        StringBuilder     sb    = new StringBuilder();
                        List <CQNotesLog> notes = CQNotesLog.Parse(fldValue);
                        foreach (CQNotesLog note in notes)
                        {
                            if (string.IsNullOrEmpty(note.Content) ||
                                note.Content.Contains(Constants.PlatformCommentSuffixMarker))
                            {
                                // skip empty logs or those generated by this adapter
                                continue;
                            }

                            if (note.Header.ChangeDate.CompareTo(migrationContext.CurrentHWMBaseLine) <= 0)
                            {
                                // skip the logs before the hwm
                                continue;
                            }

                            sb.AppendFormat("{0} {1} {2}\n",
                                            CQNotesLogHeader.NotesLogHeaderIdentifier,
                                            note.HeaderString,
                                            CQNotesLogHeader.NotesLogHeaderIdentifier);
                            sb.AppendLine(note.Content);
                        }

                        string extractedLog = sb.ToString();

                        if (!string.IsNullOrEmpty(extractedLog))
                        {
                            recordDesc.AddField(fieldName, string.Empty, extractedLog);
                        }
                    }
                }
                break;

                case CQConstants.FIELD_DATE_TIME:
                {
                    string fldValue = CQWrapper.GetFieldValue(fldInfo);
                    if (fldValue != null)
                    {
                        // the time returned from CQ API is the local time..
                        DateTime fldVal = DateTime.Parse(fldValue, CultureInfo.CurrentCulture);

                        //convert it in UTC
                        DateTime utcTime = UtilityMethods.ConvertLocalToUTC(fldVal);
                        TraceManager.TraceInformation("Field [{0}], CQ Time [{1}], UTC Time [{2}]",
                                                      fieldName, fldVal.ToString(), utcTime.ToString());

                        recordDesc.AddField(fieldName, string.Empty, utcTime.ToString());
                    }
                    else
                    {
                        recordDesc.AddField(fieldName, string.Empty, string.Empty);
                    }
                }
                break;

                case CQConstants.FIELD_REFERENCE:
                {
                    // get the current entity def handle
                    OAdEntityDef curEntityDef  = CQWrapper.GetEntityDef(CQSession, EntityDefName);
                    OAdEntityDef refEntityDef  = CQWrapper.GetFieldReferenceEntityDef(curEntityDef, fieldName);
                    string       refEntityName = CQWrapper.GetEntityDefName(refEntityDef);

                    if (CQWrapper.GetFieldValueStatus(fldInfo) == (int)CQConstants.FieldStatus.HAS_VALUE)
                    {
                        // single value required
                        string refFldVal = CQWrapper.GetFieldValue(fldInfo);
                        recordDesc.AddField(fieldName, string.Empty, refFldVal ?? string.Empty);
                    }
                    else
                    {
                        recordDesc.AddField(fieldName, string.Empty, string.Empty);
                    }
                }
                break;

                case CQConstants.FIELD_REFERENCE_LIST:
                {
                    // get the current entity def handle
                    OAdEntityDef curEntityDef  = CQWrapper.GetEntityDef(CQSession, EntityDefName);
                    OAdEntityDef refEntityDef  = CQWrapper.GetFieldReferenceEntityDef(curEntityDef, fieldName);
                    string       refEntityName = CQWrapper.GetEntityDefName(refEntityDef);

                    object[] refFldValues = CQWrapper.GetFieldValueAsList(fldInfo);
                    if (refFldValues != null)
                    {
                        StringBuilder userList = new StringBuilder();
                        for (int valueIndex = 0; valueIndex < refFldValues.Length; valueIndex++)
                        {
                            object refFldObj = refFldValues[valueIndex];
                            if (valueIndex > 0)
                            {
                                userList.Append(",");
                            }

                            userList.Append((string)refFldObj);
                        }
                        recordDesc.AddField(fieldName, string.Empty, userList.ToString());
                    }
                    else
                    {
                        recordDesc.AddField(fieldName, string.Empty, string.Empty);
                    }
                }
                break;

                case CQConstants.FIELD_ATTACHMENT_LIST:
                case CQConstants.FIELD_JOURNAL:
                    TraceManager.TraceInformation("Skipping the Field migration for Internal Field Type '{0}'",
                                                  cqFieldType);
                    // not migrating these fields as they are CQ internal fields
                    continue;

                default:
                    TraceManager.TraceInformation("Skipping the Field migration for Unkknown Field Type '{0}'",
                                                  cqFieldType);
                    break;
                } // end of switch cqFieldType
            }     // end of foreach fieldNames


            return(recordDesc.DescriptionDocument);
        }
        private bool SetFieldValue(
            IMigrationAction action,
            OAdEntity record,
            string fieldName,
            string stringVal,
            ref int numOfAttempts)
        {
            numOfAttempts++;

            OAdFieldInfo aFieldInfo         = CQWrapper.GetEntityFieldValue(record, fieldName);
            string       originalFieldValue = CQWrapper.GetFieldValue(aFieldInfo);

            // doing the real job: setting field value with CQ OM
            string cqRetVal = CQWrapper.SetFieldValue(record, fieldName, stringVal);

            // error handling
            if (!string.IsNullOrEmpty(cqRetVal))
            {
                MigrationConflict conflict = ClearQuestSetFieldValueConflictType.CreateConflict(
                    UtilityMethods.ExtractSourceWorkItemId(action),
                    UtilityMethods.ExtractSourceWorkItemRevision(action),
                    fieldName, stringVal, cqRetVal);
                List <MigrationAction> migrationActions;
                var resolutionResult = m_conflictManagerService.TryResolveNewConflict(
                    m_conflictManagerService.SourceId,
                    conflict,
                    out migrationActions);

                if (!resolutionResult.Resolved)
                {
                    // cannot resolve the conflict, move on to next MigrationAction
                    return(false);
                }
                else if (numOfAttempts <= 3)
                {
                    // not reached maximum set value attempts yet
                    if (resolutionResult.ResolutionType == ConflictResolutionType.UpdatedConflictedChangeAction)
                    {
                        XmlNode column = UtilityMethods.ExtractSingleFieldNodeFromMigrationDescription(
                            action.MigrationActionDescription, fieldName);

                        if (null == column)
                        {
                            // the field has been dropped during conflict resolution
                            // restore the "original" value
                            return(SetFieldValue(action, record, fieldName, originalFieldValue, ref numOfAttempts));
                        }
                        else
                        {
                            string newFieldValue = UtilityMethods.ExtractSingleFieldValue(column);
                            return(SetFieldValue(action, record, fieldName, stringVal, ref numOfAttempts));
                        }
                    }
                }
                else
                {
                    // reached max set value attempts WITH unresolved conflict
                    return(false);
                }
            }

            return(true);
        }
        /// <summary>
        ///
        /// </summary>
        /// <param name="entity"></param>
        /// <param name="action"></param>
        /// <param name="convRslt"></param>
        /// <param name="stateTransitFieldNode"></param>
        /// <param name="skipFields"></param>
        /// <returns></returns>
        private bool ChangeRecordState(
            OAdEntity entity,
            IMigrationAction action,
            ConversionResult convRslt,
            XmlNode stateTransitFieldNode,
            out List <string> processedFields)
        {
            processedFields = new List <string>();

            string destState = UtilityMethods.ExtractSingleFieldValue(stateTransitFieldNode);

            Debug.Assert(!string.IsNullOrEmpty(destState), "string.IsNullOrEmpty(newState)");

            // get the record's display name for updating conversion history
            string recordDisplayName = CQWrapper.GetEntityDisplayName(entity);

            string entityDefName = CQWrapper.GetEntityDefName(entity);

            // find the current state
            OAdFieldInfo aFldInfo = CQWrapper.GetEntityFieldValue(entity, m_migrationContext.GetStateField(entityDefName));
            string       srcState = CQWrapper.GetFieldValue(aFldInfo);

            if (CQStringComparer.StateName.Equals(srcState, destState))
            {
                // state does not change, skip this action
                return(false);
            }

            // find action def name
            OAdEntityDef entityDef = CQWrapper.GetEntityDef(m_userSession, entityDefName);

            string[] changeActionNames = CQUtilityMethods.FindAllActionNameByTypeAndStateTransition(entityDef, srcState, destState, CQConstants.ACTION_CHANGE);

            if (changeActionNames.Length == 0)
            {
                // [teyang] todo error handling
                throw new InvalidOperationException();
            }

            string changeActionName = changeActionNames[0];

            // *********
            // cache the current history count for all "history fields"
            // i.e. pairs of HistoryFieldName, count
            Dictionary <string, int> recordHistoryCountCache = new Dictionary <string, int>();

            BuildRecordHistoryCountCache(entity, recordHistoryCountCache);

            StringBuilder updateLog = new StringBuilder();

            PrintUpdateLogHeader(action, updateLog);

            // mark entity to be editable with the desired state-change action)
            CQWrapper.EditEntity(m_userSession, entity, changeActionName);

            XmlNodeList columns = action.MigrationActionDescription.SelectNodes("/WorkItemChanges/Columns/Column");

            if (null == columns)
            {
                throw new MigrationException(ClearQuestResource.ClearQuest_Error_InvalidActionDescription, action.ActionId);
            }

            foreach (XmlNode columnData in columns)
            {
                string stringVal = columnData.FirstChild.InnerText;
                string fieldName = columnData.Attributes["ReferenceName"].Value;

                Debug.Assert(!string.IsNullOrEmpty(fieldName),
                             "Field ReferenceName is absent in the Migration Description");


                OAdFieldInfo aFieldInfo        = CQWrapper.GetEntityFieldValue(entity, fieldName);
                int          fieldRequiredness = CQWrapper.GetRequiredness(aFieldInfo);
                if (fieldRequiredness != CQConstants.MANDATORY)
                {
                    // skipping all non-mandatory fields
                    continue;
                }

                int attempt1Count = 0;
                if (!SetFieldValue(action, entity, fieldName, stringVal, ref attempt1Count))
                {
                    return(false);
                }
                AddFieldToUpdateLog(fieldName, stringVal, updateLog);
                processedFields.Add(fieldName);
            }

            AddLineToUpdateLog(updateLog);
            int attempt2Count = 0;

            if (!SetFieldValue(action, entity, NoteEntryFieldName, updateLog.ToString(), ref attempt2Count))
            {
                return(false);
            }

            string retVal = CQWrapper.Validate(entity);

            if (!string.IsNullOrEmpty(retVal))
            {
                // [teyang] TODO conflict handling
                throw new InvalidOperationException(retVal);
            }

            retVal = CQWrapper.Commmit(entity);
            if (!string.IsNullOrEmpty(retVal))
            {
                // [teyang] TODO conflict handling
                throw new InvalidOperationException(retVal);
            }

            if (action.State == ActionState.Pending)
            {
                action.State = ActionState.Complete;
            }

            // *********
            // now comparing to the cache, so that we can clearly identify the item:version pairs
            // e.g. TargetCQRecordDisplayName : HistoryFieldName::LatestHistoryIndex
            Dictionary <string, int[]> updatedHistoryIndices = new Dictionary <string, int[]>();

            FindUpdatedHistoryIndices(entity, recordHistoryCountCache, updatedHistoryIndices);
            recordHistoryCountCache.Clear();

            foreach (string histFieldName in updatedHistoryIndices.Keys)
            {
                foreach (int histIndex in updatedHistoryIndices[histFieldName])
                {
                    UpdateConversionHistory(action,
                                            recordDisplayName,
                                            CQHistoryMigrationItem.CreateHistoryItemVersion(histFieldName, histIndex),
                                            convRslt);
                }
            }

            return(true);
        }
        private void ModifyRecordContent(
            OAdEntity entity,
            IMigrationAction action,
            ConversionResult convRslt,
            List <string> skipFields)
        {
            XmlNodeList columns = action.MigrationActionDescription.SelectNodes("/WorkItemChanges/Columns/Column");

            if (null == columns)
            {
                throw new MigrationException(ClearQuestResource.ClearQuest_Error_InvalidActionDescription, action.ActionId);
            }

            // get the record's display name for updating conversion history
            string recordDisplayName = CQWrapper.GetEntityDisplayName(entity);

            // *********
            // cache the current history count for all "history fields"
            // i.e. pairs of HistoryFieldName, count
            Dictionary <string, int> recordHistoryCountCache = new Dictionary <string, int>();

            BuildRecordHistoryCountCache(entity, recordHistoryCountCache);

            SetRecordEditable(entity);

            StringBuilder updateLog = new StringBuilder();

            PrintUpdateLogHeader(action, updateLog);

            string entityDefName = CQWrapper.GetEntityDefName(entity);
            string stateTransitionFieldDefName = m_migrationContext.GetStateField(entityDefName);

            string retVal;
            bool   recordIsUpdated = false;

            foreach (XmlNode columnData in columns)
            {
                string stringVal = columnData.FirstChild.InnerText;
                string fieldName = columnData.Attributes["ReferenceName"].Value;
                Debug.Assert(!string.IsNullOrEmpty(fieldName),
                             "Field ReferenceName is absent in the Migration Description");

                if (CQStringComparer.FieldName.Equals(fieldName, stateTransitionFieldDefName) ||
                    (null != skipFields && skipFields.Contains(fieldName, CQStringComparer.FieldName)))
                {
                    // skip or "State" field, as it has already been submitted in a separate history/revision
                    continue;
                }

                bool         setFieldValue     = false;
                OAdFieldInfo aFieldInfo        = CQWrapper.GetEntityFieldValue(entity, fieldName);
                int          fieldRequiredness = CQWrapper.GetRequiredness(aFieldInfo);
                switch (fieldRequiredness)
                {
                case CQConstants.MANDATORY:
                case CQConstants.OPTIONAL:
                    setFieldValue = true;
                    break;

                case CQConstants.READONLY:
                    // [teyang] TODO conflict handling
                    TraceManager.TraceWarning("Field {0} is READONLY", fieldName);
                    setFieldValue = false;
                    break;

                case CQConstants.USEHOOK:
                    // [teyang] TODO conflict handling
                    TraceManager.TraceWarning("Field {0} is USEHOOK", fieldName);
                    setFieldValue = false;
                    break;

                default:
                    throw new InvalidOperationException();
                }

                if (setFieldValue)
                {
                    int attempt1Count = 0;
                    if (!SetFieldValue(action, entity, fieldName, stringVal, ref attempt1Count))
                    {
                        return;
                    }
                    AddFieldToUpdateLog(fieldName, stringVal, updateLog);
                    recordIsUpdated = true;
                }
            }

            if (!recordIsUpdated)
            {
                // no update has been made to the record, mark this action to be skipped
                CQWrapper.Revert(entity);
                if (action.State == ActionState.Pending)
                {
                    action.State = ActionState.Skipped;
                }

                return;
            }

            AddLineToUpdateLog(updateLog);
            int attempt2Count = 0;

            if (!SetFieldValue(action, entity, NoteEntryFieldName, updateLog.ToString(), ref attempt2Count))
            {
                return;
            }

            retVal = CQWrapper.Validate(entity);
            if (!string.IsNullOrEmpty(retVal))
            {
                IEnumerable <Microsoft.TeamFoundation.Migration.ClearQuestAdapter.CQTextParser.RecordValidationResult> validationResults;
                if (CQTextParser.RecordValidationTextParser.TryParse(retVal, out validationResults))
                {
                    foreach (CQTextParser.RecordValidationResult rslt in validationResults)
                    {
                        MigrationConflict      conflict = ClearQuestInvalidFieldValueConflictType.CreateConflict(rslt, action);
                        List <MigrationAction> actions;
                        var resolutionRslt = m_conflictManagerService.TryResolveNewConflict(m_conflictManagerService.SourceId, conflict, out actions);
                        if (!resolutionRslt.Resolved)
                        {
                            action.ChangeGroup.ContainsBackloggedAction = true;
                            return;
                        }
                    }
                }
                else
                {
                    throw new InvalidOperationException(retVal);
                }
            }

            retVal = CQWrapper.Commmit(entity);
            if (!string.IsNullOrEmpty(retVal))
            {
                // [teyang] TODO: invalid update conflict handling
                throw new InvalidOperationException(retVal);
            }

            if (action.State == ActionState.Pending)
            {
                action.State = ActionState.Complete;
            }

            // *********
            // now comparing to the cache, so that we can clearly identify the item:version pairs
            // e.g. TargetCQRecordDisplayName : HistoryFieldName::LatestHistoryIndex
            Dictionary <string, int[]> updatedHistoryIndices = new Dictionary <string, int[]>();

            FindUpdatedHistoryIndices(entity, recordHistoryCountCache, updatedHistoryIndices);
            recordHistoryCountCache.Clear();

            foreach (string histFieldName in updatedHistoryIndices.Keys)
            {
                foreach (int histIndex in updatedHistoryIndices[histFieldName])
                {
                    UpdateConversionHistory(action,
                                            recordDisplayName,
                                            CQHistoryMigrationItem.CreateHistoryItemVersion(histFieldName, histIndex),
                                            convRslt);
                }
            }
        }
        public void ExtractLinkChangeActions(
            Session session,
            OAdEntity hostRecord,
            List <LinkChangeGroup> linkChangeGroups)
        {
            string hostRecDispName      = CQWrapper.GetEntityDisplayName(hostRecord);
            string hostRecEntityDefName = CQWrapper.GetEntityDefName(hostRecord);

            if (string.IsNullOrEmpty(hostRecEntityDefName) ||
                !CQStringComparer.EntityName.Equals(hostRecEntityDefName, this.m_hostRecordType))
            {
                return;
            }

            string hostRecMigrItemId = UtilityMethods.CreateCQRecordMigrationItemId(hostRecEntityDefName, hostRecDispName);

            var linkChangeGroup = new LinkChangeGroup(hostRecMigrItemId, LinkChangeGroup.LinkChangeGroupStatus.Created, false);

            OAdFieldInfo fldInfo     = CQWrapper.GetEntityFieldValue(hostRecord, m_referenceFieldName);
            int          cqFieldType = CQWrapper.GetFieldType(fldInfo);

            if (cqFieldType == CQConstants.FIELD_REFERENCE)
            {
                // get the current entity def handle
                OAdEntityDef curEntityDef          = CQWrapper.GetEntityDef(session, hostRecEntityDefName);
                OAdEntityDef refEntityDef          = CQWrapper.GetFieldReferenceEntityDef(curEntityDef, m_referenceFieldName);
                string       childRecEntityDefName = CQWrapper.GetEntityDefName(refEntityDef);

                int valueStatus = CQWrapper.GetFieldValueStatus(fldInfo);
                if (valueStatus == (int)CQConstants.FieldStatus.HAS_VALUE)
                {
                    // single value required
                    string refFldVal = CQWrapper.GetFieldValue(fldInfo);
                    if (!CQStringComparer.RecordName.Equals(refFldVal, hostRecDispName))
                    {
                        // NOT a reference to self.. Note TFS cannot have a reference to self
                        OAdEntity childRecord = CQWrapper.GetEntity(session, childRecEntityDefName, refFldVal);
                        if (null != childRecord)
                        {
                            string childRecDispName   = CQWrapper.GetEntityDisplayName(childRecord);
                            string childRecMigrItemId = UtilityMethods.CreateCQRecordMigrationItemId(
                                childRecEntityDefName, childRecDispName);

                            ILink refFieldLink = new ArtifactLink(
                                hostRecDispName,
                                new Artifact(hostRecMigrItemId, new ClearQuestRecordArtifactType()),
                                new Artifact(childRecMigrItemId, new ClearQuestRecordArtifactType()),
                                string.Empty,
                                this);

                            LinkChangeAction action = new LinkChangeAction(
                                WellKnownChangeActionId.Add,
                                refFieldLink,
                                LinkChangeAction.LinkChangeActionStatus.Created,
                                false);

                            linkChangeGroup.AddChangeAction(action);
                        }
                        else
                        {
                            // [teyang] TODO replace debug assertion with a conflict?
                            Debug.Assert(false, "null == childRecord");
                        }
                    }
                }
            }

            linkChangeGroups.Add(linkChangeGroup);
        }
        public bool Update(
            ClearQuestMigrationContext migrationContext,
            Session session,
            OAdEntity hostRecord,
            LinkChangeAction linkChangeAction)
        {
            if (null == linkChangeAction)
            {
                throw new ArgumentNullException("linkChangeAction");
            }

            if (!linkChangeAction.Link.LinkType.ReferenceName.StartsWith(ReferenceNameQualifier))
            {
                throw new ArgumentException("Link type mismatch.");
            }

            string childRecEntityDefName;

            if (!ClearQuestRecordArtifactHandler.TryExtractRecordDefName(linkChangeAction.Link.TargetArtifact,
                                                                         out childRecEntityDefName))
            {
                return(false);
            }
            string childRecDispName;

            if (!ClearQuestRecordArtifactHandler.TryExtractRecordDispName(linkChangeAction.Link.TargetArtifact,
                                                                          out childRecDispName))
            {
                return(false);
            }

            string hostRecEntityDefName = CQWrapper.GetEntityDefName(hostRecord);

            if (string.IsNullOrEmpty(hostRecEntityDefName) ||
                !CQStringComparer.EntityName.Equals(hostRecEntityDefName, this.m_hostRecordType))
            {
                return(false);
            }

            string refFieldName = linkChangeAction.Link.LinkType.ReferenceName.Substring(ReferenceNameQualifier.Length);

            if (string.IsNullOrEmpty(refFieldName))
            {
                return(false);
            }

            // retrieve reference field information
            OAdFieldInfo refFieldInfo = CQWrapper.GetEntityFieldValue(hostRecord, refFieldName);
            int          cqFieldType  = CQWrapper.GetFieldType(refFieldInfo);

            if (cqFieldType != CQConstants.FIELD_REFERENCE)
            {
                // the field is not of the reference type

                // [teyang] TODO conflict?
                return(false);
            }

            // get the current entity def
            OAdEntityDef hostRecordEntityDef      = CQWrapper.GetEntityDef(session, CQWrapper.GetEntityDefName(hostRecord));
            OAdEntityDef childRecordEntityDef     = CQWrapper.GetFieldReferenceEntityDef(hostRecordEntityDef, refFieldName);
            string       childRecordEntityDefName = CQWrapper.GetEntityDefName(childRecordEntityDef);

            if (!CQStringComparer.EntityName.Equals(childRecordEntityDefName, childRecEntityDefName))
            {
                // the field is not designated to hold reference to the EntityType of the target artifact

                // [teyang] TODO conflict?
                return(false);
            }

            int valueStatus = CQWrapper.GetFieldValueStatus(refFieldInfo);

            if (valueStatus == (int)CQConstants.FieldStatus.HAS_VALUE)
            {
                // the field already has a reference value set

                // single value required
                string refFldVal = CQWrapper.GetFieldValue(refFieldInfo);
                if (CQStringComparer.RecordName.Equals(refFldVal, childRecDispName))
                {
                    // the target artifact is already referenced in the field

                    // [teyang] TODO conflict?
                    return(false);
                }
                else
                {
                    // field currently holds a reference to another entity

                    // [teyang] TODO conflict?
                    return(false);
                }
            }

            string[] modifyActionNames = CQUtilityMethods.FindAllChangeActionNamesByType(
                session, hostRecord, CQConstants.ACTION_MODIFY);

            if (modifyActionNames.Length == 0)
            {
                // [teyang] TODO conflict?
                return(false);
            }
            else if (modifyActionNames.Length > 1)
            {
                // [teyang] TODO conflict?
                return(false);
            }
            else
            {
                string modAction = modifyActionNames[0];

                CQWrapper.EditEntity(session, hostRecord, modAction);

                string retVal = CQWrapper.SetFieldValue(hostRecord, refFieldName, childRecDispName);

                retVal = CQWrapper.Validate(hostRecord);
                if (string.IsNullOrEmpty(retVal))
                {
                    // [teyang] TODO conflict
                    return(false);
                }

                retVal = CQWrapper.Commmit(hostRecord);
                if (string.IsNullOrEmpty(retVal))
                {
                    // [teyang] TODO conflict
                    return(false);
                }

                return(true);
            }
        }