public void PropertyPathWillEvaluateFieldsAndProperties()
{
var data = TestHelper.CreateSinglePage();
PropertyPath path = data.ParsePropertyPath("PageNumber");
Assert.That(path.Evaluate(data), Is.EqualTo(15));
}
public override CurrentItemsCollection FillDataRow(int pos)
{
CurrentItemsCollection ci = new CurrentItemsCollection();
var obj = CurrentFromPosition(pos);
if (obj != null)
{
CurrentItem currentItem = null;
foreach (PropertyDescriptor pd in this.listProperties)
{
currentItem = new CurrentItem(pd.Name, pd.PropertyType);
PropertyPath prop = obj.ParsePropertyPath(pd.Name);
if (prop != null)
{
var pp = prop.Evaluate(obj);
if (pp != null)
{
currentItem.Value = pp.ToString();
}
}
ci.Add(currentItem);
}
}
return(ci);
}
private void VariableStore(object sender, SimpleExpressionEvaluator.Evaluation.UnknownVariableEventArgs e)
{
PropertyPath path = this.singlePage.ParsePropertyPath(e.VariableName);
if (path != null)
{
e.VariableValue = path.Evaluate(path);
}
// Look in Parametershash
if (singlePage.ParameterHash.ContainsKey(e.VariableName))
{
try {
e.VariableValue = singlePage.ParameterHash[e.VariableName].ToString();
}
catch (Exception)
{
e.VariableValue = String.Empty;
Console.WriteLine("");
Console.WriteLine("ExpressionEvaluatorFacade.VariableStore");
Console.WriteLine("Replace Param <{0}> with String.Empty because no value is set", e.VariableName);
Console.WriteLine("");
}
}
}
/// <summary>
/// Processes a Property Path
/// </summary>
/// <param name="path">Path</param>
/// <param name="context">SPARQL Evaluation Context</param>
/// <returns></returns>
public virtual BaseMultiset ProcessPropertyPath(PropertyPath path, SparqlEvaluationContext context)
{
if (context == null)
{
context = this.GetContext();
}
return(path.Evaluate(context));
}
private void VariableStore(object sender, SimpleExpressionEvaluator.Evaluation.UnknownVariableEventArgs e)
{
PropertyPath path = this.singlePage.ParsePropertyPath(e.VariableName);
if (path != null)
{
e.VariableValue = path.Evaluate(path);
}
// Look in Parametershash
if (singlePage.ParameterHash.ContainsKey(e.VariableName))
{
e.VariableValue = singlePage.ParameterHash[e.VariableName].ToString();
}
}
private void FunctionStore(object sender, SimpleExpressionEvaluator.Evaluation.UnknownFunctionEventArgs e)
{
PropertyPath path = null;
object searchObj = null;
path = e.ContextObject.ParsePropertyPath(e.FunctionName);
if (path != null)
{
searchObj = e.ContextObject;
}
else
{
throw new UnknownFunctionException(e.FunctionName);
}
e.Function = functionArgs => path.Evaluate(searchObj);
}
private void FunctionStore(object sender, SimpleExpressionEvaluator.Evaluation.UnknownFunctionEventArgs e)
{
PropertyPath path = null;
object searchObj = null;
path = e.ContextObject.ParsePropertyPath(e.FunctionName);
if (path != null)
{
searchObj = e.ContextObject;
}
else
{
throw new InvalidOperationException("A function specified in the expression (" + e.FunctionName +
") does not exist.");
}
e.Function = functionArgs => path.Evaluate(searchObj);
}
public static void Run()
{
var item = new Item
{
Uid = "uid",
DisplayName = "display name"
};
var propname = nameof(item.Uid);
var path = new PropertyPath("Uid.Length");
var key2 = path.Evaluate(item);
// one way...
var prop = item.GetType().GetProperty(propname);
var getter = prop.AsGetter <object, object>();
var key = getter(item);
}
protected virtual object ResolveQualifiedName(Type targetType, object target, string[] name)
{
string cacheKey = PropertyPath.GetCacheKey(targetType, name);
PropertyPath path = null;
_propCache.TryGetValue(cacheKey, out path);
if (path == null)
{
path = PropertyPath.Compile(targetType, name);
if (path != null)
{
_propCache[cacheKey] = path;
}
}
if (path != null)
{
return(path.Evaluate(target));
}
return(null);
}
private void FillInternal(object fillFrom, IDataItem item)
{
if (item is BaseDataItem)
{
string result = String.Empty;
PropertyPath path = fillFrom.ParsePropertyPath(item.ColumnName);
if (path != null)
{
var pp = path.Evaluate(fillFrom);
if (pp != null)
{
result = pp.ToString();
}
}
else
{
result = WrongColumnName(item.ColumnName);
}
item.DBValue = result;
}
else
{
//image processing from IList
BaseImageItem baseImageItem = item as BaseImageItem;
if (baseImageItem != null)
{
PropertyDescriptor p = this.listProperties.Find(baseImageItem.ColumnName, true);
if (p != null)
{
baseImageItem.Image = p.GetValue(this.Current) as System.Drawing.Image;
}
return;
}
}
}
