/// <summary>
/// Enumerate the diff items found based on the query passed in as well as the filterString and version passed
/// to InitializeForDiff. The return type is IEnumerable<> so that adapter implementations do not need download and keep
/// all of the IWITDiffItems in memory at once.
/// </summary>
/// <param name="queryCondition">A string that specifies a query used to select a subset of the work items defined by
/// the set that the filter string identified.</param>
/// <returns>An enumeration of IWITDiffItems each representing a work item to be compared by the WIT Diff operation</returns>
public IEnumerable <IWITDiffItem> GetWITDiffItems(string queryCondition)
{
string columnList = "[System.Id], [System.Rev]";
StringBuilder conditionBuilder = new StringBuilder(m_filterString);
if (!string.IsNullOrEmpty(queryCondition))
{
if (conditionBuilder.Length > 0)
{
conditionBuilder.Append(" AND ");
}
conditionBuilder.Append(queryCondition);
}
string orderBy = "[System.Id]";
string wiql = TfsWITQueryBuilder.BuildWiqlQuery(columnList, conditionBuilder.ToString(), orderBy);
// Run query with date precision off
Dictionary <string, object> context = new Dictionary <string, object>();
context.Add("project", m_projectName);
Query wiq = new Query(m_workItemStore, wiql, context, false);
// Retrieve all results
ICancelableAsyncResult car = wiq.BeginQuery();
WorkItemCollection workItems = wiq.EndQuery(car);
foreach (WorkItem workItem in workItems)
{
yield return((IWITDiffItem) new TfsWITDiffItem(this, workItem));
}
}
public ChangeSummary GetSummaryOfChangesSince(string lastProcessedChangeItemId, List <string> filterStrings)
{
if (string.IsNullOrEmpty(lastProcessedChangeItemId))
{
throw new ArgumentException("lastProcessedChangeItemId");
}
ChangeSummary changeSummary = new ChangeSummary();
changeSummary.ChangeCount = 0;
changeSummary.FirstChangeModifiedTimeUtc = DateTime.MinValue;
string[] changeItemIdParts = lastProcessedChangeItemId.Split(new char[] { ':' });
if (changeItemIdParts.Length != 2)
{
throw new ArgumentException(String.Format(CultureInfo.InvariantCulture,
TfsWITAdapterResources.InvalidChangeItemIdFormat, lastProcessedChangeItemId));
}
int lastProcessedWorkItemId = 0;
WorkItem lastProcessedWorkItem = null;
try
{
lastProcessedWorkItemId = int.Parse(changeItemIdParts[0]);
lastProcessedWorkItem = m_workItemStore.GetWorkItem(lastProcessedWorkItemId);
int revNumber = -1;
try
{
revNumber = int.Parse(changeItemIdParts[1]);
}
catch (FormatException)
{
}
DateTime changedDate;
if (revNumber > 0)
{
Revision rev = lastProcessedWorkItem.Revisions[revNumber - 1];
changedDate = (DateTime)rev.Fields[CoreField.ChangedDate].Value;
}
else
{
changedDate = lastProcessedWorkItem.ChangedDate;
}
changeSummary.FirstChangeModifiedTimeUtc = changedDate.ToUniversalTime();
}
catch (Exception ex)
{
Console.WriteLine(String.Format(CultureInfo.InvariantCulture,
"Tfs2008WitAdapter.TfsWITSyncMonitorProvider: Exception finding last processed work item (Id {0}): {1}",
lastProcessedWorkItemId, ex.ToString()));
}
WorkItem nextWorkItemToBeMigrated = null;
foreach (string filterString in filterStrings)
{
Dictionary <string, object> context = new Dictionary <string, object>();
string columnList = "[System.Id], [System.ChangedDate]";
StringBuilder conditionBuilder = new StringBuilder(filterString);
if (!string.IsNullOrEmpty(m_projectName))
{
context.Add("project", m_projectName);
if (conditionBuilder.Length > 0)
{
conditionBuilder.Append(" AND ");
}
conditionBuilder.Append("[System.TeamProject] = @project");
}
if (!changeSummary.FirstChangeModifiedTimeUtc.Equals(default(DateTime)))
{
if (conditionBuilder.Length > 0)
{
conditionBuilder.Append(" AND ");
}
conditionBuilder.AppendFormat(CultureInfo.InvariantCulture, "[System.ChangedDate] > '{0:u}'", changeSummary.FirstChangeModifiedTimeUtc);
}
string orderBy = "[System.Id]";
string wiql = TfsWITQueryBuilder.BuildWiqlQuery(columnList, conditionBuilder.ToString(), orderBy);
// Run query with date precision off
Query wiq = new Query(m_workItemStore, wiql, context, false);
// Retrieve all results
ICancelableAsyncResult car = wiq.BeginQuery();
WorkItemCollection workItems = wiq.EndQuery(car);
foreach (WorkItem wi in workItems)
{
if (!m_translationService.IsSyncGeneratedItemVersion(
wi.Id.ToString(),
wi.Rev.ToString(),
new Guid(m_migrationSource.InternalUniqueId)))
{
changeSummary.ChangeCount++;
if (nextWorkItemToBeMigrated == null || wi.ChangedDate < nextWorkItemToBeMigrated.ChangedDate)
{
nextWorkItemToBeMigrated = wi;
}
}
}
}
if (nextWorkItemToBeMigrated != null)
{
changeSummary.FirstChangeModifiedTimeUtc = nextWorkItemToBeMigrated.ChangedDate.ToUniversalTime();
}
return(changeSummary);
}
