/// <summary>
/// Releases all resources used by the <see cref="DisposableIsolatingComposablePart"/> object.
/// </summary>
/// <param name="disposing">True if disposing, else false to release unmanaged resources.</param>
protected virtual void Dispose(bool disposing)
{
foreach (var disposableValue in ExportedValues)
{
PartHostManager.ReleaseInstance(disposableValue);
}
}
/// <summary>
/// Marks the host as faulted.
/// </summary>
/// <param name="exception">The exception.</param>
internal void MarkFaulted(Exception exception)
{
lock (this._syncObject)
{
// if host is already marked, do nothing
if (this.Faulted)
{
return;
}
this.Faulted = true;
try
{
PartHostManager.OnFaulted(this, exception);
}
catch { }
}
}
/// <summary>
/// Gets the exported object described by the specified <see cref="T:System.ComponentModel.Composition.Primitives.ExportDefinition"/> object.
/// </summary>
/// <param name="definition">One of the <see cref="T:System.ComponentModel.Composition.Primitives.ExportDefinition"/> objects from the <see cref="P:System.ComponentModel.Composition.Primitives.ComposablePart.ExportDefinitions"/> property that describes the exported object to return.</param>
/// <returns>
/// The exported object described by <paramref name="definition"/>.
/// </returns>
/// <exception cref="T:System.ObjectDisposedException">The <see cref="T:System.ComponentModel.Composition.Primitives.ComposablePart"/> object has been disposed of.</exception>
/// <exception cref="T:System.ArgumentNullException">
/// <paramref name="definition"/> is null.</exception>
/// <exception cref="T:System.ComponentModel.Composition.Primitives.ComposablePartException">An error occurred getting the exported object described by the <see cref="T:System.ComponentModel.Composition.Primitives.ExportDefinition"/>.</exception>
/// <exception cref="T:System.ArgumentException">
/// <paramref name="definition"/> did not originate from the <see cref="P:System.ComponentModel.Composition.Primitives.ComposablePart.ExportDefinitions"/> property on the <see cref="T:System.ComponentModel.Composition.Primitives.ComposablePart"/>.</exception>
/// <exception cref="T:System.InvalidOperationException">One or more prerequisite imports, indicated by <see cref="P:System.ComponentModel.Composition.Primitives.ImportDefinition.IsPrerequisite"/>, have not been set.</exception>
public override object GetExportedValue(ExportDefinition definition)
{
if (definition == null)
{
throw new ArgumentNullException("definition");
}
if (this._values.ContainsKey(definition))
{
return(this._values[definition]);
}
Lazy <Type> type = ReflectionModelServices.GetPartType(this._definition);
string contractName = definition.ContractName;
object partProxy = PartHostManager.CreateInstance(type.Value, this._isolationMetadata.ConfigFileBaseName, contractName);
this._values[definition] = partProxy;
return(partProxy);
}