/// <summary>
/// Attempts to load an Object of the given type identified by the given Node and returned as the Type that this loader generates
/// </summary>
/// <param name="g">Configuration Graph</param>
/// <param name="objNode">Object Node</param>
/// <param name="targetType">Target Type</param>
/// <param name="obj">Created Object</param>
/// <returns>True if the loader succeeded in creating an Object</returns>
public bool TryLoadObject(IGraph g, INode objNode, Type targetType, out object obj)
{
obj = null;
INode managerNode;
Object temp;
//Create the URI Nodes we're going to use to search for things
INode propServer = ConfigurationLoader.CreateConfigurationNode(g, ConfigurationLoader.PropertyServer),
propDb = ConfigurationLoader.CreateConfigurationNode(g, ConfigurationLoader.PropertyDatabase);
switch (targetType.FullName)
{
case MicrosoftAdoDataset:
managerNode = ConfigurationLoader.GetConfigurationNode(g, objNode, ConfigurationLoader.CreateConfigurationNode(g, ConfigurationLoader.PropertyGenericManager));
if (managerNode != null)
{
temp = ConfigurationLoader.LoadObject(g, managerNode);
if (temp is MicrosoftAdoManager)
{
obj = new MicrosoftAdoDataset((MicrosoftAdoManager)temp);
}
else
{
throw new DotNetRdfConfigurationException("Unable to load the object identified by the Node '" + objNode.ToString() + "' since the object pointed to by the dnr:genericManager property could not be loaded as an instance of the required MicrosoftAdoManager class");
}
}
else
{
throw new DotNetRdfConfigurationException("Unable to load the object identified by the Node '" + objNode.ToString() + "' as it specified a dnr:type of MicrosoftAdoDataset but failed to specify a dnr:genericManager property to point to a MicrosoftAdoManager");
}
break;
case AzureAdoManager:
case MicrosoftAdoManager:
//Get Server and Database details
String server = ConfigurationLoader.GetConfigurationString(g, objNode, propServer);
if (server == null) server = "localhost";
String db = ConfigurationLoader.GetConfigurationString(g, objNode, propDb);
if (db == null) return false;
//Get user credentials
String user, pwd;
ConfigurationLoader.GetUsernameAndPassword(g, objNode, true, out user, out pwd);
bool encrypt = ConfigurationLoader.GetConfigurationBoolean(g, objNode, ConfigurationLoader.CreateConfigurationNode(g, ConfigurationLoader.PropertyEncryptConnection), false);
String mode = ConfigurationLoader.GetConfigurationString(g, objNode, ConfigurationLoader.CreateConfigurationNode(g, ConfigurationLoader.PropertyLoadMode));
AdoAccessMode accessMode = (mode != null ? (AdoAccessMode)Enum.Parse(typeof(AdoAccessMode), mode) : AdoAccessMode.Streaming);
//Create the Manager
if (user != null && pwd != null)
{
if (targetType.FullName.Equals(MicrosoftAdoManager))
{
obj = new MicrosoftAdoManager(server, db, user, pwd, encrypt, accessMode);
}
else
{
obj = new AzureAdoManager(server, db, user, pwd, accessMode);
}
}
else
{
if (targetType.FullName.Equals(AzureAdoManager)) throw new DotNetRdfConfigurationException("Unable to load the object identified by the Node '" + objNode.ToString() + "' as an AzureAdoManager as the required dnr:user and dnr:password properties were missing");
obj = new MicrosoftAdoManager(server, db, encrypt, accessMode);
}
break;
case MicrosoftAdoOptimiser:
managerNode = ConfigurationLoader.GetConfigurationNode(g, objNode, ConfigurationLoader.CreateConfigurationNode(g, ConfigurationLoader.PropertyGenericManager));
if (managerNode != null)
{
temp = ConfigurationLoader.LoadObject(g, managerNode);
if (temp is MicrosoftAdoManager)
{
obj = new MicrosoftAdoOptimiser((MicrosoftAdoManager)temp);
}
else
{
throw new DotNetRdfConfigurationException("Unable to load the object identified by the Node '" + objNode.ToString() + "' since the object pointed to by the dnr:genericManager property could not be loaded as a MicrosoftAdoManager instance");
}
}
else
{
throw new DotNetRdfConfigurationException("Unable to load the object identified by the Node '" + objNode.ToString() + "' as it specified a dnr:type of AdoOptimiser but failed to specify a dnr:genericManager property to point to a MicrosoftAdoManager instance");
}
break;
}
return (obj != null);
}
/// <summary>
/// Attempts to load an Object of the given type identified by the given Node and returned as the Type that this loader generates
/// </summary>
/// <param name="g">Configuration Graph</param>
/// <param name="objNode">Object Node</param>
/// <param name="targetType">Target Type</param>
/// <param name="obj">Created Object</param>
/// <returns>True if the loader succeeded in creating an Object</returns>
public bool TryLoadObject(IGraph g, INode objNode, Type targetType, out object obj)
{
obj = null;
INode managerNode;
Object temp;
//Create the URI Nodes we're going to use to search for things
INode propServer = ConfigurationLoader.CreateConfigurationNode(g, ConfigurationLoader.PropertyServer),
propDb = ConfigurationLoader.CreateConfigurationNode(g, ConfigurationLoader.PropertyDatabase);
switch (targetType.FullName)
{
case MicrosoftAdoDataset:
managerNode = ConfigurationLoader.GetConfigurationNode(g, objNode, ConfigurationLoader.CreateConfigurationNode(g, ConfigurationLoader.PropertyGenericManager));
if (managerNode != null)
{
temp = ConfigurationLoader.LoadObject(g, managerNode);
if (temp is MicrosoftAdoManager)
{
obj = new MicrosoftAdoDataset((MicrosoftAdoManager)temp);
}
else
{
throw new DotNetRdfConfigurationException("Unable to load the object identified by the Node '" + objNode.ToString() + "' since the object pointed to by the dnr:genericManager property could not be loaded as an instance of the required MicrosoftAdoManager class");
}
}
else
{
throw new DotNetRdfConfigurationException("Unable to load the object identified by the Node '" + objNode.ToString() + "' as it specified a dnr:type of MicrosoftAdoDataset but failed to specify a dnr:genericManager property to point to a MicrosoftAdoManager");
}
break;
case AzureAdoManager:
case MicrosoftAdoManager:
//Get Server and Database details
String server = ConfigurationLoader.GetConfigurationString(g, objNode, propServer);
if (server == null)
{
server = "localhost";
}
String db = ConfigurationLoader.GetConfigurationString(g, objNode, propDb);
if (db == null)
{
return(false);
}
//Get user credentials
String user, pwd;
ConfigurationLoader.GetUsernameAndPassword(g, objNode, true, out user, out pwd);
bool encrypt = ConfigurationLoader.GetConfigurationBoolean(g, objNode, ConfigurationLoader.CreateConfigurationNode(g, ConfigurationLoader.PropertyEncryptConnection), false);
String mode = ConfigurationLoader.GetConfigurationString(g, objNode, ConfigurationLoader.CreateConfigurationNode(g, ConfigurationLoader.PropertyLoadMode));
AdoAccessMode accessMode = (mode != null ? (AdoAccessMode)Enum.Parse(typeof(AdoAccessMode), mode) : AdoAccessMode.Streaming);
//Create the Manager
if (user != null && pwd != null)
{
if (targetType.FullName.Equals(MicrosoftAdoManager))
{
obj = new MicrosoftAdoManager(server, db, user, pwd, encrypt, accessMode);
}
else
{
obj = new AzureAdoManager(server, db, user, pwd, accessMode);
}
}
else
{
if (targetType.FullName.Equals(AzureAdoManager))
{
throw new DotNetRdfConfigurationException("Unable to load the object identified by the Node '" + objNode.ToString() + "' as an AzureAdoManager as the required dnr:user and dnr:password properties were missing");
}
obj = new MicrosoftAdoManager(server, db, encrypt, accessMode);
}
break;
case MicrosoftAdoOptimiser:
managerNode = ConfigurationLoader.GetConfigurationNode(g, objNode, ConfigurationLoader.CreateConfigurationNode(g, ConfigurationLoader.PropertyGenericManager));
if (managerNode != null)
{
temp = ConfigurationLoader.LoadObject(g, managerNode);
if (temp is MicrosoftAdoManager)
{
obj = new MicrosoftAdoOptimiser((MicrosoftAdoManager)temp);
}
else
{
throw new DotNetRdfConfigurationException("Unable to load the object identified by the Node '" + objNode.ToString() + "' since the object pointed to by the dnr:genericManager property could not be loaded as a MicrosoftAdoManager instance");
}
}
else
{
throw new DotNetRdfConfigurationException("Unable to load the object identified by the Node '" + objNode.ToString() + "' as it specified a dnr:type of AdoOptimiser but failed to specify a dnr:genericManager property to point to a MicrosoftAdoManager instance");
}
break;
}
return(obj != null);
}
