/// <summary>
/// Enumerates from top of classroom '{index}' in T's selectors
/// </summary>
/// <param name="Index">Index from top of classroom.</param>
/// <param name="Found">
/// Predicate used in searching for valid item.
/// <br/>
/// Default is item != null
/// </param>
/// <typeparam name="T"></typeparam>
/// <returns></returns>
public T Get <T>(int Index, Predicate <T> Found = null) where T : new()
{
if (Found == null)
{
Found = item => item != null;
}
var type = typeof(T);
FromSelector baseClass = type.GetCustomAttribute <FromSelector>();
T item = default(T);
for (int i = 1; Index >= 0;)
{
do
{
string selector = baseClass.Selector.Replace("{index}", i.ToString());
try
{
item = Fill <T>(selector);
}
catch (NoSuchElementException)
{
// Do nothing...
logger.Trace("Timedout `{0}`", selector);
item = default(T);
}
i++;
} while (!Found(item) && i < POST_DEPTH);
Index--;
}
return(item);
}
public static AddEdgeCommand ConnectVerticies <TFromEntity, TToEntity>(this IGraphClient client,
QueryResult <TFromEntity> fromEntity, TToEntity toEntity, string relation)
{
var fromSelector = new FromSelector <TFromEntity>(client);
var whereSelector = new WhereAnySelector(client, "id", fromEntity.Id)
{
ParentSelector = fromSelector
};
var addCommand = new AddEdgeCommand(client, toEntity, relation)
{
ParentSelector = whereSelector,
InsertCommand = new InsertCommand(client, toEntity)
};
return(addCommand);
}
public T FindAfter <T>(T Item, int Times) where T : new()
{
T el = default(T);
FromSelector baseClass = typeof(T).GetCustomAttribute <FromSelector>();
bool isXpath = baseClass is FromXPath;
int i = 1;
bool found = false;
// logger.Trace("Received {0}", Item);
while (Times >= 0)
{
do
{
string selector = baseClass.Selector.Replace("{index}", i.ToString());
// logger.Trace("Filling selector [ {0} ]", selector);
try
{
el = Fill <T>(selector);
}
catch //(Exception ex)
{
el = default(T);
}
i++;
} while (el == null && i < POST_DEPTH);
if (el.Equals(Item))
{
found = true;
}
if (found)
{
Times--;
}
}
return(el);
}
public static FromSelector <TEntity> From <TEntity>(this IGraphClient client)
{
var selector = new FromSelector <TEntity>(client);
return(selector);
}
