/// <summary>
/// Generates a standard file name to be used for the configuration file
/// </summary>
/// <returns></returns>
private string GetConfigurationFileName()
{
if (string.IsNullOrEmpty(ConfigurationFileName))
{
return(StringHelper.AddBS(StringHelper.JustPath(System.Reflection.Assembly.GetExecutingAssembly().Location)) + "App.sconfig");
}
return(ConfigurationFileName);
}
/// <summary>Makes sure the secified path ends with a back-slash</summary>
/// <param name="path">Path</param>
/// <returns>Path with BS</returns>
/// <example>
/// @"c:\folder".AddBS(); // returns @"c:\folder\"
/// @"c:\folder\".AddBS(); // returns @"c:\folder\"
/// </example>
public static string AddBS(this string path)
{
return(StringHelper.AddBS(path));
}
/// <summary>
/// Loads a named object from an assembly
/// </summary>
/// <param name="className">Fully qualified name of the class</param>
/// <param name="assemblyName">Assembly name (preferrably the fully or partially qualified name, or the file name)</param>
/// <returns>Newly instantiated object</returns>
/// <example>SqlDataService oService = (SqlDataService)ObjectHelper.CreateObject("EPS.Data.SqlClient","SqlDataService")</example>
public static object CreateObject(string className, string assemblyName)
{
Assembly assembly = null;
if (assemblyName.ToLower(CultureInfo.InvariantCulture).EndsWith(".dll") || assemblyName.ToLower(CultureInfo.InvariantCulture).EndsWith(".exe"))
{
try
{
assembly = Assembly.LoadFrom(assemblyName);
}
catch
{
if (assemblyName.IndexOf("\\", StringComparison.Ordinal) < 0)
{
string location;
try
{
location = ((Assembly.GetEntryAssembly() != null) ? Assembly.GetEntryAssembly().Location : Assembly.GetAssembly(typeof(ObjectHelper)).Location);
}
catch
{
try
{
location = Assembly.GetAssembly(typeof(ObjectHelper)).Location;
}
catch
{
throw new ObjectInstantiationException("Unable to find assemblie's location(" + assemblyName + ")");
}
}
string startPath = StringHelper.AddBS(StringHelper.JustPath(location));
assemblyName = startPath + assemblyName;
try
{
assembly = Assembly.LoadFrom(assemblyName);
}
catch (Exception ex)
{
throw new ObjectInstantiationException("Unable to load assembly " + assemblyName + ". Error: " + ex.Message, ex);
}
}
}
}
else if (assemblyName.IndexOf(",", StringComparison.Ordinal) > -1)
{
try
{
assembly = Assembly.Load(assemblyName);
}
catch (Exception ex)
{
throw new ObjectInstantiationException("Unable to load assembly " + assemblyName + ". Error: " + ex.Message, ex);
}
}
else
{
try
{
assembly = Assembly.Load(assemblyName);
}
catch (Exception ex)
{
throw new ObjectInstantiationException("Unable to load assembly " + assemblyName + ". Error: " + ex.Message, ex);
}
}
Type objectType;
try
{
if (!(assembly != null))
{
throw new ObjectInstantiationException("Unable to create instance " + className + ". Error: Unable to load assembly.");
}
objectType = assembly.GetType(className, true);
}
catch (Exception ex)
{
throw new ObjectInstantiationException("Unable to get type " + className + ". Error: " + ex.Message, ex);
}
object result;
try
{
result = Activator.CreateInstance(objectType);
}
catch (Exception ex)
{
throw new ObjectInstantiationException("Unable to create instance " + className + ". Error: " + ex.Message, ex);
}
return(result);
}
