private static void RenderProperties(TextWriter writer, WorkItem item)
{
foreach (var keyValue in item.Properties)
{
writer.Write(",\"{0}\":\"{1}\"", Encode(keyValue.Key), Encode(keyValue.Value));
}
}
public void CreateWorkItem(WorkItem newWorkItem)
{
var creator = new WorkItemCreator(WorkflowRepository, TimeSource);
var timeStamp = TimeSource.GetTime();
creator.CreateWorkItem(newWorkItem.UpdateTimestamp(timeStamp).UpdateLastMoved(timeStamp));
}
private static string GenerateWorkItemClass(WorkItem item)
{
var classes = new List<string> {"workitem"};
classes.AddRange(item.Classes);
return classes.Join(' ');
}
public void Init()
{
_tx = new TransactionScope(TransactionScopeOption.Required);
_repository = new AdoWorkItemRepository(_connectionString);
_wi = WorkItem.New("1", "/path/subpath");
}
public void DeleteWorkItem(WorkItem workItem)
{
var request = (HttpWebRequest)WebRequest.Create(_site + workItem.Path + "/" + workItem.Id);
request.ContentType = "text/csv";
request.Method = "delete";
((IDisposable)request.GetResponse()).Dispose();
}
public void CreateWorkItem(WorkItem newWorkItem)
{
using(WorkflowRepository.BeginTransaction())
{
Create(newWorkItem);
WorkflowRepository.CommitTransaction();
}
}
public void CreateWorkItem(WorkItem workItem)
{
using(var connection = new SqlConnection(_connectionString))
{
connection.Open();
Create(connection,workItem);
}
}
private static string GetAge(WorkItem workItem)
{
if(workItem.Properties.ContainsKey(_ageKey))
{
return workItem.Properties[_ageKey];
}
return null;
}
public void MoveWorkItem(WorkItem workItem, WorkStep toStep)
{
using(WorkflowRepository.BeginTransaction())
{
Move(workItem, toStep);
WorkflowRepository.CommitTransaction();
}
}
private static void AdjustStatus(SqlConnection connection, WorkItem workItem, string query)
{
var cmd = new SqlCommand(query, connection);
cmd.Parameters.Add(new SqlParameter("@Id", workItem.Id));
cmd.Parameters.Add(new SqlParameter("@Path", workItem.Path));
cmd.ExecuteNonQuery();
}
private static WorkItem ParseClasses(XmlNode workItemNode, WorkItem workItem)
{
var workItemClasses = SelectNodeValueOrDefault(workItemNode,"@classes",null);
if(!String.IsNullOrEmpty(workItemClasses))
{
workItem = workItem.UpdateClasses(workItemClasses.Split(' '));
}
return workItem;
}
private static WorkItem ParseOrdinal(XmlNode workItemNode, WorkItem workItem)
{
var ordinal = SelectNodeValueOrDefault(workItemNode, "@ordinal", null);
if(!String.IsNullOrEmpty(ordinal))
{
workItem = workItem.UpdateOrdinal(XmlConvert.ToInt32(ordinal));
}
return workItem;
}
private static WorkItem ParseTimestamp(XmlNode workItemNode, WorkItem workItem)
{
var lastUpdatedValue = SelectNodeValueOrDefault(workItemNode, "@timestamp", null);
if(!String.IsNullOrEmpty(lastUpdatedValue))
{
var lastUpdated = XmlConvert.ToDateTime(lastUpdatedValue, XmlDateTimeSerializationMode.RoundtripKind);
workItem = workItem.UpdateTimestamp(lastUpdated);
}
return workItem;
}
public void CreateWorkItem(WorkItem workItem)
{
if (_workItems.ContainsKey(workItem.Id))
{
throw new ArgumentException("Work item already exists: " + workItem.Id);
}
_innerRepository.CreateWorkItem(workItem);
_workItems.Add(workItem.Id, workItem);
}
public void CleanUpIfInExpandStep(WorkItem workItemToMove)
{
WorkStep expandStep;
if (WorkflowRepository.IsInExpandStep(workItemToMove, out expandStep))
{
var transientStepPath = ExpandedWorkStep.GetTransientPath(expandStep, workItemToMove);
var transientStep = WorkflowRepository.GetWorkStep(transientStepPath);
WorkflowRepository.DeleteWorkStepsRecursively(transientStep);
}
}
private void ThrowInvalidOperationExceptionIfParentIsParallelLocked(WorkItem workItem)
{
if (workItem.Parent != null)
{
var parent = WorkflowRepository.GetWorkItem(workItem.Parent.Id);
if (parent.Status == WorkItemStatus.ParallelLocked)
{
throw new InvalidOperationException("Cannot delete workitem which is child of paralleled workitem");
}
}
}
public static bool IsChildOfExpandedWorkItem(this IReadableWorkflowRepository workflowRepository, WorkItem item)
{
if (item.Parent == null)
{
return false;
}
var parent = workflowRepository.GetWorkItem(item.Parent.Id);
var workStep = workflowRepository.GetWorkStep(parent.Path);
return workStep.Type == WorkStepType.Expand;
}
private static void LogCreate(WorkItem workItem)
{
using (var connection = new SqlConnection(_connectionString))
{
connection.Open();
Log(connection, workItem.Timestamp, "create", workItem, null);
const string createStatus =
"insert into WS_WorkflowStatus (WS_Id,WS_Path) VALUES (@Id,@Path)";
AdjustStatus(connection, workItem, createStatus);
}
}
public static bool IsChildOfParallelledWorkItem(this IReadableWorkflowRepository repository, WorkItem workItem, out WorkItem parent)
{
if (workItem.Parent != null)
{
parent = repository.GetWorkItem(workItem.Parent.Id);
if (parent.Status == WorkItemStatus.ParallelLocked)
{
return true;
}
}
parent = null;
return false;
}
public IEnumerable<WorkItem> SplitForParallelism(WorkItem workItem, WorkStep parallelRootStep)
{
var childWorkItems = new List<WorkItem>();
foreach (var subStep in _workflowRepository.GetChildWorkSteps(parallelRootStep.Path))
{
var childId = GetParallelId(workItem.Id, parallelRootStep, subStep);
var childWorkItem = workItem.CreateChildItem(childId,WorkItemParentType.Parallelled).AddClass(subStep.WorkItemClass);
childWorkItems.Add(childWorkItem);
}
return childWorkItems;
}
private static WorkItem GetAgeUpdateWorkItem(WorkItem workItem)
{
var now = DateTime.Now;
var lastMoved = workItem.LastMoved.HasValue ? workItem.LastMoved.Value : now;
string age;
if (lastMoved.AddDays(35) < now)
{
age = "dead";
}
else if (lastMoved.AddDays(20) < now)
{
age = "old";
}
else if (lastMoved.AddDays(13) < now)
{
age = "senior";
}
else if (lastMoved.AddDays(8) < now)
{
age = "middleaged";
}
else if (lastMoved.AddDays(5) < now)
{
age = "young";
}
else if (lastMoved.AddDays(3) < now)
{
age = "adolescent";
}
else if (lastMoved.AddDays(2) < now)
{
age = "child";
}
else if (lastMoved.AddDays(1) < now)
{
age = "baby";
}
else
{
age = "newborn";
}
return WorkItem.New(workItem.Id,workItem.Path).UpdateProperty(_ageKey, age);
}
private static void Log(SqlConnection connection, DateTime? timestamp, string type, WorkItem workItem,
object fromPath)
{
const string insertLog =
"insert into WL_WorkflowLog" +
" (WL_Type,WL_Timestamp,WL_Id,WL_Path,WL_FromPath)" +
" values (@Type,@Timestamp,@Id,@Path,@FromPath)";
var cmd = new SqlCommand(insertLog, connection);
cmd.Parameters.Add(new SqlParameter("@Type", type));
cmd.Parameters.Add(new SqlParameter("@Timestamp", timestamp.HasValue ? timestamp.Value : DateTime.Now));
cmd.Parameters.Add(new SqlParameter("@Id", workItem.Id));
cmd.Parameters.Add(new SqlParameter("@Path", workItem.Path));
cmd.Parameters.Add(new SqlParameter("@FromPath", fromPath ?? DBNull.Value));
cmd.ExecuteNonQuery();
}
private void DeleteWorkItemRecursively(WorkItem workItem)
{
var expandedChildWorkItems = WorkflowRepository.GetChildWorkItems(workItem.AsParent(WorkItemParentType.Expanded));
var parallelChildWorkItems = WorkflowRepository.GetChildWorkItems(workItem.AsParent(WorkItemParentType.Parallelled));
var childWorkItems = expandedChildWorkItems.Concat(parallelChildWorkItems);
if (childWorkItems.Count() > 0)
{
foreach (var childWorkItem in childWorkItems)
{
DeleteWorkItemRecursively(childWorkItem);
}
}
WorkflowRepository.DeleteWorkItem(workItem.Id);
CleanUpIfInExpandStep(workItem);
}
private static void RenderProperties(XmlWriter writer, WorkItem workItem)
{
writer.WriteStartElement("Properties");
foreach (var keyValue in workItem.Properties)
{
writer.WriteStartElement("Property");
writer.WriteStartAttribute("name");
writer.WriteValue(keyValue.Key);
writer.WriteEndAttribute();
writer.WriteValue(keyValue.Value);
writer.WriteEndElement(); //Property
}
writer.WriteEndElement(); //Properties
}
private void Create(WorkItem newWorkItem)
{
var leafStep = WorkflowRepository.GetLeafStep(newWorkItem.Path);
if (leafStep.Type != WorkStepType.Begin)
{
throw new InvalidOperationException("Can only create work items in begin step");
}
var classes = WorkflowRepository.GetWorkItemClasses(leafStep);
newWorkItem = newWorkItem.MoveTo(leafStep,_timeSource.GetTime()).UpdateClasses(classes);
WorkStep transientStep;
if (WorkflowRepository.IsWithinTransientStep(leafStep, out transientStep))
{
var parentItem = GetTransientParentWorkItem(transientStep);
WorkflowRepository.UpdateWorkItem(parentItem.UpdateStatus(WorkItemStatus.ExpandLocked));
newWorkItem = newWorkItem.MoveTo(leafStep,_timeSource.GetTime()).UpdateParent(parentItem,WorkItemParentType.Expanded);
foreach (var workItemClass in newWorkItem.Classes)
{
foreach (var rootClass in WorkItemClass.FindRootClasses(workItemClass))
{
newWorkItem = newWorkItem.AddClass(rootClass);
}
}
}
else if (WorkflowRepository.IsWithinExpandStep(leafStep))
{
throw new InvalidOperationException("Cannot create item directly under expand step");
}
if (!newWorkItem.Ordinal.HasValue)
{
newWorkItem = newWorkItem.UpdateOrdinal(WorkflowRepository.GetNextOrdinal(newWorkItem));
}
WorkflowRepository.CreateWorkItem(newWorkItem);
}
public void UpdateWorkItem(WorkItem changedWorkItem)
{
var currentWorkItem = GetWorkItemOrThrow(changedWorkItem.Id);
ThrowIfConflictingTimestamp(currentWorkItem, changedWorkItem);
currentWorkItem =
currentWorkItem.UpdatePropertiesAndOrdinalFrom(changedWorkItem).UpdateTimestamp(TimeSource.GetTime());
var leafStep = WorkflowRepository.GetLeafStep(changedWorkItem.Path);
if (changedWorkItem.Path == currentWorkItem.Path || currentWorkItem.Path == leafStep.Path)
{
WorkflowRepository.UpdateWorkItem(currentWorkItem);
}
else
{
var mover = new WorkItemMover(WorkflowRepository,TimeSource);
mover.MoveWorkItem(currentWorkItem, leafStep);
}
}
private static void ThrowIfConflictingTimestamp(WorkItem currentWorkItem, WorkItem changedWorkItem)
{
if (changedWorkItem.Timestamp.HasValue && changedWorkItem.Timestamp.Value != currentWorkItem.Timestamp.Value)
{
throw new InvalidOperationException("Conflicting timestamps");
}
}
public void UpdateWorkItem(WorkItem workItem)
{
_innerRepository.UpdateWorkItem(workItem);
_workItems[workItem.Id] = workItem;
}
public void UpdateWorkItem(WorkItem workItem)
{
_workItems[workItem.Id] = workItem;
}
private static void RenderWorkItem(XmlWriter writer, WorkItem item)
{
writer.WriteStartElement("WorkItem");
writer.WriteStartAttribute("id");
writer.WriteValue(item.Id);
writer.WriteEndAttribute();
if(item.Ordinal.HasValue)
{
RenderAttribute(writer, "ordinal", XmlConvert.ToString(item.Ordinal.Value));
}
if(item.Timestamp.HasValue)
{
RenderAttribute(writer, "timestamp", XmlConvert.ToString(item.Timestamp.Value, XmlDateTimeSerializationMode.RoundtripKind));
}
if (item.LastMoved.HasValue)
{
RenderAttribute(writer, "lastmoved", XmlConvert.ToString(item.LastMoved.Value, XmlDateTimeSerializationMode.RoundtripKind));
}
writer.WriteStartAttribute("classes");
writer.WriteValue(item.Classes.Join(' '));
writer.WriteEndAttribute();
RenderProperties(writer, item);
writer.WriteEndElement(); //WorkItem
}
