/// <summary>
/// Remove a work site in work site linked by identifier.
/// </summary>
/// <param name="currentIdentifier">identifier</param>
/// <returns>Removed work site</returns>
public IWorkSite RemoveWorkSite(string currentIdentifier)
{
IWorkSite workSite = SelectWorkSite(currentIdentifier);
if (workSite == null)
{
return(null);
}
this._workSites.Remove(workSite);
return(workSite);
}
/// <summary>
/// Insert a work site before the current work site.
/// </summary>
/// <param name="currentIdentifier">current work site</param>
/// <param name="insertWorkSite">Insert work site</param>
/// <returns>Insert result true or false.</returns>
public bool InsertWorkSite(string currentIdentifier, IWorkSite insertWorkSite)
{
IWorkSite workSite = SelectWorkSite(currentIdentifier);
//Linked list is null
if (this._workSites.Count == 0)
{
return(false);
}
LinkedListNode <IWorkSite> currentNode = this._workSites.Find(workSite);
//Not contain target work site.
if (workSite == null)
{
return(false);
}
this._workSites.AddBefore(currentNode, insertWorkSite);
return(true);
}
/// <summary>
/// Update an existing work site.
/// </summary>
/// <param name="currentIdentifier">Identifier</param>
/// <param name="newWorkSite">New work site</param>
/// <returns>Update result true or false.</returns>
public bool UpdateWorkSite(string currentIdentifier, IWorkSite newWorkSite)
{
IWorkSite oldWorkSite = SelectWorkSite(currentIdentifier);
if (oldWorkSite == null)
{
return(false);
}
LinkedListNode <IWorkSite> currentNode = this._workSites.Find(oldWorkSite);
LinkedListNode <IWorkSite> preNode = currentNode.Previous;
// First node
if (preNode == null)
{
LinkedListNode <IWorkSite> nextNode = currentNode.Next;
this._workSites.Remove(currentNode);
this._workSites.AddBefore(nextNode, newWorkSite);
return(true);
}
this._workSites.Remove(currentNode);
this._workSites.AddAfter(preNode, newWorkSite);
return(true);
}
/// <summary>
/// Add a work site into the work site linked.
/// </summary>
/// <param name="workSite">The add of work site.</param>
/// <returns>The count of the work site linked.</returns>
public int AddWorkSite(IWorkSite workSite)
{
this._workSites.AddLast(workSite);
return(this._workSites.Count);
}
