public static IRealTimePersister GetInstance(string name)
{
RealTimeSetting setting = RealTimeSection.GetSetting();
if (name == null || name.Trim().Length <= 0)
{
name = setting.DefaultPersisteName;
}
if (name == null)
{
throw new ConfigurationErrorsException("The default persister name is not configured in config file.");
}
if (s_persisteProviders.ContainsKey(name))
{
return(s_persisteProviders[name]);
}
lock (s_SyncObj)
{
if (s_persisteProviders.ContainsKey(name))
{
return(s_persisteProviders[name]);
}
if (!setting.ContainsKey(name))
{
throw new ConfigurationErrorsException("The persister named '" + name + "' is not be found in config file.");
}
PersisteItemConfig item = setting[name];
if (item.Type == null || item.Type.Trim().Length <= 0)
{
throw new ConfigurationErrorsException("The type of persister '" + name + "' cannot be empty.");
}
Type p = Type.GetType(item.Type, true);
if (!typeof(IRealTimePersister).IsAssignableFrom(p))
{
throw new ConfigurationErrorsException("The type '" + p.AssemblyQualifiedName + "' of persister '" + name + "' dosen't implement the interface '" + typeof(IRealTimePersister).AssemblyQualifiedName + "'.");
}
IRealTimePersister rst = (IRealTimePersister)Activator.CreateInstance(p);
s_persisteProviders.Add(name, rst);
return(rst);
}
}
public object Create(object parent, object configContext, XmlNode section)
{
RealTimeSetting setting = new RealTimeSetting();
if (section != null)
{
string tmp = GetNodeAttribute(section, "default");
setting.DefaultPersisteName = (tmp != null && tmp.Length > 0) ? tmp : null;
XmlNode[] nodeList = GetChildrenNodes(section, "item");
foreach (XmlNode node in nodeList)
{
string name = GetNodeAttribute(node, "name");
if (name == null || name.Length <= 0)
{
throw new ConfigurationErrorsException("The attribute 'name' of the xml node 'persister/item' cannot be empty in config file.");
}
if (setting.ContainsKey(name))
{
throw new ConfigurationErrorsException("Duplicated name '" + name + "' of the xml node 'persister/item' in config file.");
}
string type = GetNodeAttribute(node, "type");
if (type == null || type.Length <= 0)
{
throw new ConfigurationErrorsException("The attribute 'type' of the xml node 'persister/item' cannot be empty in config file.");
}
NameValueCollection parms = new NameValueCollection();
XmlNode[] paramList = GetChildrenNodes(node.SelectSingleNode("parameters"), "add");
foreach (XmlNode pa in paramList)
{
parms.Add(GetNodeAttribute(pa, "key"), GetNodeAttribute(pa, "value"));
}
setting.Add(name, new PersisteItemConfig
{
Name = name,
Type = type,
Parameters = parms
});
}
}
return(setting);
}