/// <summary>
/// Provide an instance of the configured provider
/// </summary>
public static void GetInstance(IProvidee provi)
{
String assemblyPath = ConfigurationSettings.AppSettings["DataProviderAssemblyPath"];
String className = ConfigurationSettings.AppSettings["DataProviderClassName"];
//use the cache because the reflection used later is expensive
if (Globals.Context == null)
{
if (m_instance == null)
{
provi.Acquire((m_instance = (IDataProvider)Assembly.LoadFrom(
assemblyPath).GetType(className).GetConstructor(new Type[0]).Invoke(null)));
}
else
{
provi.Acquire(m_instance);
}
}
else
{
Cache cache = Globals.Context.Cache;
if (null == cache["IDataProvider"])
{
// assemblyPath presented in virtual form, must convert to physical path
assemblyPath = Globals.Context.Server.MapPath(Globals.Context.Request.ApplicationPath + "/bin/" + assemblyPath);
// Uuse reflection to store the constructor of the class that implements IWebForumDataProvider
try {
IDataProvider dp = (IDataProvider)Assembly.LoadFrom(assemblyPath).GetType(
className).GetConstructor(new Type[0]).Invoke(null);
cache.Insert("IDataProvider", dp, new CacheDependency(assemblyPath));
}
catch (Exception) {
// could not locate DLL file
HttpContext.Current.Response.Write("<b>ERROR:</b> Could not locate file: <code>" + assemblyPath + "</code> or could not locate class <code>" + className + "</code> in file.");
HttpContext.Current.Response.End();
}
}
provi.Acquire((IDataProvider)cache["IDataProvider"]);
}
}
/// <summary>
/// Provide an instance of the configured provider
/// </summary>
public static void GetInstance(IProvidee provi)
{
String assemblyPath = ConfigurationSettings.AppSettings["DataProviderAssemblyPath"];
String className = ConfigurationSettings.AppSettings["DataProviderClassName"];
//use the cache because the reflection used later is expensive
if (Globals.Context == null) {
if (m_instance == null)
provi.Acquire((m_instance = (IDataProvider) Assembly.LoadFrom(
assemblyPath).GetType(className).GetConstructor(new Type[0]).Invoke(null)));
else
provi.Acquire(m_instance);
}
else {
Cache cache = Globals.Context.Cache;
if (null == cache["IDataProvider"]) {
// assemblyPath presented in virtual form, must convert to physical path
assemblyPath = Globals.Context.Server.MapPath(Globals.Context.Request.ApplicationPath + "/bin/" + assemblyPath);
// Uuse reflection to store the constructor of the class that implements IWebForumDataProvider
try {
IDataProvider dp = (IDataProvider) Assembly.LoadFrom(assemblyPath).GetType(
className).GetConstructor(new Type[0]).Invoke(null);
cache.Insert("IDataProvider", dp, new CacheDependency(assemblyPath));
}
catch (Exception) {
// could not locate DLL file
HttpContext.Current.Response.Write("<b>ERROR:</b> Could not locate file: <code>" + assemblyPath + "</code> or could not locate class <code>" + className + "</code> in file.");
HttpContext.Current.Response.End();
}
}
provi.Acquire((IDataProvider)cache["IDataProvider"]);
}
}
