/// <summary>
/// Tries to load a Generic IO Manager based on information from the Configuration Graph.
/// </summary>
/// <param name="g">Configuration Graph.</param>
/// <param name="objNode">Object Node.</param>
/// <param name="targetType">Target Type.</param>
/// <param name="obj">Output Object.</param>
/// <returns></returns>
public bool TryLoadObject(IGraph g, INode objNode, Type targetType, out object obj)
{
IStorageProvider storageProvider = null;
IStorageServer storageServer = null;
SparqlConnectorLoadMethod loadMode;
obj = null;
String server, user, pwd, store, catalog, loadModeRaw;
Object temp;
INode storeObj;
// Create the URI Nodes we're going to use to search for things
INode propServer = g.CreateUriNode(UriFactory.Create(ConfigurationLoader.PropertyServer)),
propDb = g.CreateUriNode(UriFactory.Create(ConfigurationLoader.PropertyDatabase)),
propStore = g.CreateUriNode(UriFactory.Create(ConfigurationLoader.PropertyStore)),
propAsync = g.CreateUriNode(UriFactory.Create(ConfigurationLoader.PropertyAsync)),
propStorageProvider = g.CreateUriNode(UriFactory.Create(ConfigurationLoader.PropertyStorageProvider));
switch (targetType.FullName)
{
case AllegroGraph:
// Get the Server, Catalog and Store
server = ConfigurationLoader.GetConfigurationString(g, objNode, propServer);
if (server == null)
{
return(false);
}
catalog = ConfigurationLoader.GetConfigurationString(g, objNode, g.CreateUriNode(UriFactory.Create(ConfigurationLoader.PropertyCatalog)));
store = ConfigurationLoader.GetConfigurationString(g, objNode, propStore);
if (store == null)
{
return(false);
}
// Get User Credentials
ConfigurationLoader.GetUsernameAndPassword(g, objNode, true, out user, out pwd);
if (user != null && pwd != null)
{
storageProvider = new AllegroGraphConnector(server, catalog, store, user, pwd);
}
else
{
storageProvider = new AllegroGraphConnector(server, catalog, store);
}
break;
case AllegroGraphServer:
// Get the Server, Catalog and User Credentials
server = ConfigurationLoader.GetConfigurationString(g, objNode, propServer);
if (server == null)
{
return(false);
}
catalog = ConfigurationLoader.GetConfigurationString(g, objNode, g.CreateUriNode(UriFactory.Create(ConfigurationLoader.PropertyCatalog)));
ConfigurationLoader.GetUsernameAndPassword(g, objNode, true, out user, out pwd);
if (user != null && pwd != null)
{
storageServer = new AllegroGraphServer(server, catalog, user, pwd);
}
else
{
storageServer = new AllegroGraphServer(server, catalog);
}
break;
case DatasetFile:
// Get the Filename and whether the loading should be done asynchronously
String file = ConfigurationLoader.GetConfigurationString(g, objNode, g.CreateUriNode(UriFactory.Create(ConfigurationLoader.PropertyFromFile)));
if (file == null)
{
return(false);
}
file = ConfigurationLoader.ResolvePath(file);
bool isAsync = ConfigurationLoader.GetConfigurationBoolean(g, objNode, propAsync, false);
storageProvider = new DatasetFileManager(file, isAsync);
break;
case Dydra:
throw new DotNetRdfConfigurationException("DydraConnector is no longer supported by dotNetRDF and is considered obsolete");
case FourStore:
// Get the Server and whether Updates are enabled
server = ConfigurationLoader.GetConfigurationString(g, objNode, propServer);
if (server == null)
{
return(false);
}
bool enableUpdates = ConfigurationLoader.GetConfigurationBoolean(g, objNode, g.CreateUriNode(UriFactory.Create(ConfigurationLoader.PropertyEnableUpdates)), true);
storageProvider = new FourStoreConnector(server, enableUpdates);
break;
case Fuseki:
// Get the Server URI
server = ConfigurationLoader.GetConfigurationString(g, objNode, propServer);
if (server == null)
{
return(false);
}
storageProvider = new FusekiConnector(server);
break;
case InMemory:
// Get the Dataset/Store
INode datasetObj = ConfigurationLoader.GetConfigurationNode(g, objNode, g.CreateUriNode(UriFactory.Create(ConfigurationLoader.PropertyUsingDataset)));
if (datasetObj != null)
{
temp = ConfigurationLoader.LoadObject(g, datasetObj);
if (temp is ISparqlDataset)
{
storageProvider = new InMemoryManager((ISparqlDataset)temp);
}
else
{
throw new DotNetRdfConfigurationException("Unable to load the In-Memory Manager identified by the Node '" + objNode.ToString() + "' as the value given for the dnr:usingDataset property points to an Object that cannot be loaded as an object which implements the ISparqlDataset interface");
}
}
else
{
// If no dnr:usingDataset try dnr:usingStore instead
storeObj = ConfigurationLoader.GetConfigurationNode(g, objNode, g.CreateUriNode(UriFactory.Create(ConfigurationLoader.PropertyUsingStore)));
if (storeObj != null)
{
temp = ConfigurationLoader.LoadObject(g, storeObj);
if (temp is IInMemoryQueryableStore)
{
storageProvider = new InMemoryManager((IInMemoryQueryableStore)temp);
}
else
{
throw new DotNetRdfConfigurationException("Unable to load the In-Memory Manager identified by the Node '" + objNode.ToString() + "' as the value given for the dnr:usingStore property points to an Object that cannot be loaded as an object which implements the IInMemoryQueryableStore interface");
}
}
else
{
// If no dnr:usingStore either then create a new empty store
storageProvider = new InMemoryManager();
}
}
break;
case ReadOnly:
// Get the actual Manager we are wrapping
storeObj = ConfigurationLoader.GetConfigurationNode(g, objNode, propStorageProvider);
temp = ConfigurationLoader.LoadObject(g, storeObj);
if (temp is IStorageProvider)
{
storageProvider = new ReadOnlyConnector((IStorageProvider)temp);
}
else
{
throw new DotNetRdfConfigurationException("Unable to load the Read-Only Connector identified by the Node '" + objNode.ToString() + "' as the value given for the dnr:genericManager property points to an Object which cannot be loaded as an object which implements the required IStorageProvider interface");
}
break;
case ReadOnlyQueryable:
// Get the actual Manager we are wrapping
storeObj = ConfigurationLoader.GetConfigurationNode(g, objNode, propStorageProvider);
temp = ConfigurationLoader.LoadObject(g, storeObj);
if (temp is IQueryableStorage)
{
storageProvider = new QueryableReadOnlyConnector((IQueryableStorage)temp);
}
else
{
throw new DotNetRdfConfigurationException("Unable to load the Queryable Read-Only Connector identified by the Node '" + objNode.ToString() + "' as the value given for the dnr:genericManager property points to an Object which cannot be loaded as an object which implements the required IQueryableStorage interface");
}
break;
case Sesame:
case SesameV5:
case SesameV6:
// Get the Server and Store ID
server = ConfigurationLoader.GetConfigurationString(g, objNode, propServer);
if (server == null)
{
return(false);
}
store = ConfigurationLoader.GetConfigurationString(g, objNode, propStore);
if (store == null)
{
return(false);
}
ConfigurationLoader.GetUsernameAndPassword(g, objNode, true, out user, out pwd);
if (user != null && pwd != null)
{
storageProvider = (IStorageProvider)Activator.CreateInstance(targetType, new Object[] { server, store, user, pwd });
}
else
{
storageProvider = (IStorageProvider)Activator.CreateInstance(targetType, new Object[] { server, store });
}
break;
case SesameServer:
// Get the Server and User Credentials
server = ConfigurationLoader.GetConfigurationString(g, objNode, propServer);
if (server == null)
{
return(false);
}
ConfigurationLoader.GetUsernameAndPassword(g, objNode, true, out user, out pwd);
if (user != null && pwd != null)
{
storageServer = new SesameServer(server, user, pwd);
}
else
{
storageServer = new SesameServer(server);
}
break;
case Sparql:
// Get the Endpoint URI or the Endpoint
server = ConfigurationLoader.GetConfigurationString(g, objNode, new INode[] { g.CreateUriNode(UriFactory.Create(ConfigurationLoader.PropertyQueryEndpointUri)), g.CreateUriNode(UriFactory.Create(ConfigurationLoader.PropertyEndpointUri)) });
// What's the load mode?
loadModeRaw = ConfigurationLoader.GetConfigurationString(g, objNode, g.CreateUriNode(UriFactory.Create(ConfigurationLoader.PropertyLoadMode)));
loadMode = SparqlConnectorLoadMethod.Construct;
if (loadModeRaw != null)
{
try
{
loadMode = (SparqlConnectorLoadMethod)Enum.Parse(typeof(SparqlConnectorLoadMethod), loadModeRaw);
}
catch
{
throw new DotNetRdfConfigurationException("Unable to load the SparqlConnector identified by the Node '" + objNode.ToString() + "' as the value given for the property dnr:loadMode is not valid");
}
}
if (server == null)
{
INode endpointObj = ConfigurationLoader.GetConfigurationNode(g, objNode, new INode[] { g.CreateUriNode(UriFactory.Create(ConfigurationLoader.PropertyQueryEndpoint)), g.CreateUriNode(UriFactory.Create(ConfigurationLoader.PropertyEndpoint)) });
if (endpointObj == null)
{
return(false);
}
temp = ConfigurationLoader.LoadObject(g, endpointObj);
if (temp is SparqlRemoteEndpoint)
{
storageProvider = new SparqlConnector((SparqlRemoteEndpoint)temp, loadMode);
}
else
{
throw new DotNetRdfConfigurationException("Unable to load the SparqlConnector identified by the Node '" + objNode.ToString() + "' as the value given for the property dnr:endpoint points to an Object which cannot be loaded as an object which is of the type SparqlRemoteEndpoint");
}
}
else
{
// Are there any Named/Default Graph URIs
IEnumerable <Uri> defGraphs = from def in ConfigurationLoader.GetConfigurationData(g, objNode, g.CreateUriNode(UriFactory.Create(ConfigurationLoader.PropertyDefaultGraphUri)))
where def.NodeType == NodeType.Uri
select((IUriNode)def).Uri;
IEnumerable <Uri> namedGraphs = from named in ConfigurationLoader.GetConfigurationData(g, objNode, g.CreateUriNode(UriFactory.Create(ConfigurationLoader.PropertyNamedGraphUri)))
where named.NodeType == NodeType.Uri
select((IUriNode)named).Uri;
if (defGraphs.Any() || namedGraphs.Any())
{
storageProvider = new SparqlConnector(new SparqlRemoteEndpoint(UriFactory.Create(server), defGraphs, namedGraphs), loadMode);
}
else
{
storageProvider = new SparqlConnector(UriFactory.Create(server), loadMode);
}
}
break;
case ReadWriteSparql:
SparqlRemoteEndpoint queryEndpoint;
SparqlRemoteUpdateEndpoint updateEndpoint;
// Get the Query Endpoint URI or the Endpoint
server = ConfigurationLoader.GetConfigurationString(g, objNode, new INode[] { g.CreateUriNode(UriFactory.Create(ConfigurationLoader.PropertyUpdateEndpointUri)), g.CreateUriNode(UriFactory.Create(ConfigurationLoader.PropertyEndpointUri)) });
// What's the load mode?
loadModeRaw = ConfigurationLoader.GetConfigurationString(g, objNode, g.CreateUriNode(UriFactory.Create(ConfigurationLoader.PropertyLoadMode)));
loadMode = SparqlConnectorLoadMethod.Construct;
if (loadModeRaw != null)
{
try
{
loadMode = (SparqlConnectorLoadMethod)Enum.Parse(typeof(SparqlConnectorLoadMethod), loadModeRaw);
}
catch
{
throw new DotNetRdfConfigurationException("Unable to load the ReadWriteSparqlConnector identified by the Node '" + objNode.ToString() + "' as the value given for the property dnr:loadMode is not valid");
}
}
if (server == null)
{
INode endpointObj = ConfigurationLoader.GetConfigurationNode(g, objNode, new INode[] { g.CreateUriNode(UriFactory.Create(ConfigurationLoader.PropertyQueryEndpoint)), g.CreateUriNode(UriFactory.Create(ConfigurationLoader.PropertyEndpoint)) });
if (endpointObj == null)
{
return(false);
}
temp = ConfigurationLoader.LoadObject(g, endpointObj);
if (temp is SparqlRemoteEndpoint)
{
queryEndpoint = (SparqlRemoteEndpoint)temp;
}
else
{
throw new DotNetRdfConfigurationException("Unable to load the ReadWriteSparqlConnector identified by the Node '" + objNode.ToString() + "' as the value given for the property dnr:queryEndpoint/dnr:endpoint points to an Object which cannot be loaded as an object which is of the type SparqlRemoteEndpoint");
}
}
else
{
// Are there any Named/Default Graph URIs
IEnumerable <Uri> defGraphs = from def in ConfigurationLoader.GetConfigurationData(g, objNode, g.CreateUriNode(UriFactory.Create(ConfigurationLoader.PropertyDefaultGraphUri)))
where def.NodeType == NodeType.Uri
select((IUriNode)def).Uri;
IEnumerable <Uri> namedGraphs = from named in ConfigurationLoader.GetConfigurationData(g, objNode, g.CreateUriNode(UriFactory.Create(ConfigurationLoader.PropertyNamedGraphUri)))
where named.NodeType == NodeType.Uri
select((IUriNode)named).Uri;
if (defGraphs.Any() || namedGraphs.Any())
{
queryEndpoint = new SparqlRemoteEndpoint(UriFactory.Create(server), defGraphs, namedGraphs);
;
}
else
{
queryEndpoint = new SparqlRemoteEndpoint(UriFactory.Create(server));
}
}
// Find the Update Endpoint or Endpoint URI
server = ConfigurationLoader.GetConfigurationString(g, objNode, new INode[] { g.CreateUriNode(UriFactory.Create(ConfigurationLoader.PropertyUpdateEndpointUri)), g.CreateUriNode(UriFactory.Create(ConfigurationLoader.PropertyEndpointUri)) });
if (server == null)
{
INode endpointObj = ConfigurationLoader.GetConfigurationNode(g, objNode, new INode[] { g.CreateUriNode(UriFactory.Create(ConfigurationLoader.PropertyUpdateEndpoint)), g.CreateUriNode(UriFactory.Create(ConfigurationLoader.PropertyEndpoint)) });
if (endpointObj == null)
{
return(false);
}
temp = ConfigurationLoader.LoadObject(g, endpointObj);
if (temp is SparqlRemoteUpdateEndpoint)
{
updateEndpoint = (SparqlRemoteUpdateEndpoint)temp;
}
else
{
throw new DotNetRdfConfigurationException("Unable to load the ReadWriteSparqlConnector identified by the Node '" + objNode.ToString() + "' as the value given for the property dnr:updateEndpoint/dnr:endpoint points to an Object which cannot be loaded as an object which is of the type SparqlRemoteUpdateEndpoint");
}
}
else
{
updateEndpoint = new SparqlRemoteUpdateEndpoint(UriFactory.Create(server));
}
storageProvider = new ReadWriteSparqlConnector(queryEndpoint, updateEndpoint, loadMode);
break;
case SparqlHttpProtocol:
// Get the Service URI
server = ConfigurationLoader.GetConfigurationString(g, objNode, propServer);
if (server == null)
{
return(false);
}
storageProvider = new SparqlHttpProtocolConnector(UriFactory.Create(server));
break;
case Stardog:
case StardogV1:
case StardogV2:
case StardogV3:
// Get the Server and Store
server = ConfigurationLoader.GetConfigurationString(g, objNode, propServer);
if (server == null)
{
return(false);
}
store = ConfigurationLoader.GetConfigurationString(g, objNode, propStore);
if (store == null)
{
return(false);
}
// Get User Credentials
ConfigurationLoader.GetUsernameAndPassword(g, objNode, true, out user, out pwd);
// Get Reasoning Mode
StardogReasoningMode reasoning = StardogReasoningMode.None;
String mode = ConfigurationLoader.GetConfigurationString(g, objNode, g.CreateUriNode(UriFactory.Create(ConfigurationLoader.PropertyLoadMode)));
if (mode != null)
{
try
{
reasoning = (StardogReasoningMode)Enum.Parse(typeof(StardogReasoningMode), mode, true);
}
catch
{
reasoning = StardogReasoningMode.None;
}
}
if (user != null && pwd != null)
{
switch (targetType.FullName)
{
case StardogV1:
storageProvider = new StardogV1Connector(server, store, reasoning, user, pwd);
break;
case StardogV2:
storageProvider = new StardogV2Connector(server, store, reasoning, user, pwd);
break;
case StardogV3:
storageProvider = new StardogV3Connector(server, store, user, pwd);
break;
case Stardog:
default:
storageProvider = new StardogConnector(server, store, user, pwd);
break;
}
}
else
{
switch (targetType.FullName)
{
case StardogV1:
storageProvider = new StardogV1Connector(server, store, reasoning);
break;
case StardogV2:
storageProvider = new StardogV2Connector(server, store, reasoning);
break;
case StardogV3:
storageProvider = new StardogV3Connector(server, store);
break;
case Stardog:
default:
storageProvider = new StardogConnector(server, store);
break;
}
}
break;
case StardogServer:
case StardogServerV1:
case StardogServerV2:
case StardogServerV3:
// Get the Server and User Credentials
server = ConfigurationLoader.GetConfigurationString(g, objNode, propServer);
if (server == null)
{
return(false);
}
ConfigurationLoader.GetUsernameAndPassword(g, objNode, true, out user, out pwd);
if (user != null && pwd != null)
{
switch (targetType.FullName)
{
case StardogServerV1:
storageServer = new StardogV1Server(server, user, pwd);
break;
case StardogServerV2:
storageServer = new StardogV2Server(server, user, pwd);
break;
case StardogServerV3:
storageServer = new StardogV3Server(server, user, pwd);
break;
case StardogServer:
default:
storageServer = new StardogServer(server, user, pwd);
break;
}
}
else
{
switch (targetType.FullName)
{
case StardogServerV1:
storageServer = new StardogV1Server(server);
break;
case StardogServerV2:
storageServer = new StardogV2Server(server);
break;
case StardogServerV3:
storageServer = new StardogV3Server(server);
break;
case StardogServer:
default:
storageServer = new StardogServer(server);
break;
}
}
break;
}
// Set the return object if one has been loaded
if (storageProvider != null)
{
obj = storageProvider;
}
else if (storageServer != null)
{
obj = storageServer;
}
// Check whether this is a standard HTTP manager and if so load standard configuration
if (obj is BaseHttpConnector)
{
BaseHttpConnector connector = (BaseHttpConnector)obj;
int timeout = ConfigurationLoader.GetConfigurationInt32(g, objNode, g.CreateUriNode(UriFactory.Create(ConfigurationLoader.PropertyTimeout)), 0);
if (timeout > 0)
{
connector.Timeout = timeout;
}
INode proxyNode = ConfigurationLoader.GetConfigurationNode(g, objNode, g.CreateUriNode(UriFactory.Create(ConfigurationLoader.PropertyProxy)));
if (proxyNode != null)
{
temp = ConfigurationLoader.LoadObject(g, proxyNode);
if (temp is IWebProxy)
{
connector.Proxy = (IWebProxy)temp;
}
else
{
throw new DotNetRdfConfigurationException("Unable to load storage provider/server identified by the Node '" + objNode.ToString() + "' as the value given for the dnr:proxy property pointed to an Object which could not be loaded as an object of the required type WebProxy");
}
}
}
return(obj != null);
}
/// <summary>
/// Tries to load a Generic IO Manager based on information from the Configuration Graph
/// </summary>
/// <param name="g">Configuration Graph</param>
/// <param name="objNode">Object Node</param>
/// <param name="targetType">Target Type</param>
/// <param name="obj">Output Object</param>
/// <returns></returns>
public bool TryLoadObject(IGraph g, INode objNode, Type targetType, out object obj)
{
IGenericIOManager manager = null;
obj = null;
String server, user, pwd, store;
bool isAsync;
Object temp;
INode storeObj;
//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),
propStore = ConfigurationLoader.CreateConfigurationNode(g, ConfigurationLoader.PropertyStore),
propAsync = ConfigurationLoader.CreateConfigurationNode(g, ConfigurationLoader.PropertyAsync);
switch (targetType.FullName)
{
#if !NO_SYNC_HTTP
case AllegroGraph:
//Get the Server, Catalog and Store
server = ConfigurationLoader.GetConfigurationString(g, objNode, propServer);
if (server == null)
{
return(false);
}
String catalog = ConfigurationLoader.GetConfigurationString(g, objNode, ConfigurationLoader.CreateConfigurationNode(g, ConfigurationLoader.PropertyCatalog));
store = ConfigurationLoader.GetConfigurationString(g, objNode, propStore);
if (store == null)
{
return(false);
}
//Get User Credentials
ConfigurationLoader.GetUsernameAndPassword(g, objNode, true, out user, out pwd);
if (user != null && pwd != null)
{
manager = new AllegroGraphConnector(server, catalog, store, user, pwd);
}
else
{
manager = new AllegroGraphConnector(server, catalog, store);
}
break;
#endif
case DatasetFile:
//Get the Filename and whether the loading should be done asynchronously
String file = ConfigurationLoader.GetConfigurationString(g, objNode, ConfigurationLoader.CreateConfigurationNode(g, ConfigurationLoader.PropertyFromFile));
if (file == null)
{
return(false);
}
file = ConfigurationLoader.ResolvePath(file);
isAsync = ConfigurationLoader.GetConfigurationBoolean(g, objNode, propAsync, false);
manager = new DatasetFileManager(file, isAsync);
break;
#if !NO_SYNC_HTTP
case Dydra:
//Get the Account Name and Store
String account = ConfigurationLoader.GetConfigurationString(g, objNode, ConfigurationLoader.CreateConfigurationNode(g, ConfigurationLoader.PropertyCatalog));
if (account == null)
{
return(false);
}
store = ConfigurationLoader.GetConfigurationString(g, objNode, propStore);
if (store == null)
{
return(false);
}
//Get User Credentials
ConfigurationLoader.GetUsernameAndPassword(g, objNode, true, out user, out pwd);
if (user != null)
{
manager = new DydraConnector(account, store, user);
}
else
{
manager = new DydraConnector(account, store);
}
break;
case FourStore:
//Get the Server and whether Updates are enabled
server = ConfigurationLoader.GetConfigurationString(g, objNode, propServer);
if (server == null)
{
return(false);
}
bool enableUpdates = ConfigurationLoader.GetConfigurationBoolean(g, objNode, ConfigurationLoader.CreateConfigurationNode(g, ConfigurationLoader.PropertyEnableUpdates), true);
manager = new FourStoreConnector(server, enableUpdates);
break;
case Fuseki:
//Get the Server URI
server = ConfigurationLoader.GetConfigurationString(g, objNode, propServer);
if (server == null)
{
return(false);
}
manager = new FusekiConnector(server);
break;
#endif
case InMemory:
//Get the Dataset/Store
INode datasetObj = ConfigurationLoader.GetConfigurationNode(g, objNode, ConfigurationLoader.CreateConfigurationNode(g, ConfigurationLoader.PropertyUsingDataset));
if (datasetObj != null)
{
temp = ConfigurationLoader.LoadObject(g, datasetObj);
if (temp is ISparqlDataset)
{
manager = new InMemoryManager((ISparqlDataset)temp);
}
else
{
throw new DotNetRdfConfigurationException("Unable to load the In-Memory Manager identified by the Node '" + objNode.ToString() + "' as the value given for the dnr:usingDataset property points to an Object that cannot be loaded as an object which implements the ISparqlDataset interface");
}
}
else
{
//If no dnr:usingDataset try dnr:usingStore instead
storeObj = ConfigurationLoader.GetConfigurationNode(g, objNode, ConfigurationLoader.CreateConfigurationNode(g, ConfigurationLoader.PropertyUsingStore));
if (storeObj != null)
{
temp = ConfigurationLoader.LoadObject(g, storeObj);
if (temp is IInMemoryQueryableStore)
{
manager = new InMemoryManager((IInMemoryQueryableStore)temp);
}
else
{
throw new DotNetRdfConfigurationException("Unable to load the In-Memory Manager identified by the Node '" + objNode.ToString() + "' as the value given for the dnr:usingStore property points to an Object that cannot be loaded as an object which implements the IInMemoryQueryableStore interface");
}
}
else
{
//If no dnr:usingStore either then create a new empty store
manager = new InMemoryManager();
}
}
break;
#if !NO_SYNC_HTTP
case Joseki:
//Get the Query and Update URIs
server = ConfigurationLoader.GetConfigurationString(g, objNode, propServer);
if (server == null)
{
return(false);
}
String queryService = ConfigurationLoader.GetConfigurationString(g, objNode, ConfigurationLoader.CreateConfigurationNode(g, ConfigurationLoader.PropertyQueryPath));
if (queryService == null)
{
return(false);
}
String updateService = ConfigurationLoader.GetConfigurationString(g, objNode, ConfigurationLoader.CreateConfigurationNode(g, ConfigurationLoader.PropertyUpdatePath));
if (updateService == null)
{
manager = new JosekiConnector(server, queryService);
}
else
{
manager = new JosekiConnector(server, queryService, updateService);
}
break;
#endif
case ReadOnly:
//Get the actual Manager we are wrapping
storeObj = ConfigurationLoader.GetConfigurationNode(g, objNode, ConfigurationLoader.CreateConfigurationNode(g, ConfigurationLoader.PropertyGenericManager));
temp = ConfigurationLoader.LoadObject(g, storeObj);
if (temp is IGenericIOManager)
{
manager = new ReadOnlyConnector((IGenericIOManager)temp);
}
else
{
throw new DotNetRdfConfigurationException("Unable to load the Read-Only Connector identified by the Node '" + objNode.ToString() + "' as the value given for the dnr:genericManager property points to an Object which cannot be loaded as an object which implements the required IGenericIOManager interface");
}
break;
case ReadOnlyQueryable:
//Get the actual Manager we are wrapping
storeObj = ConfigurationLoader.GetConfigurationNode(g, objNode, ConfigurationLoader.CreateConfigurationNode(g, ConfigurationLoader.PropertyGenericManager));
temp = ConfigurationLoader.LoadObject(g, storeObj);
if (temp is IQueryableGenericIOManager)
{
manager = new QueryableReadOnlyConnector((IQueryableGenericIOManager)temp);
}
else
{
throw new DotNetRdfConfigurationException("Unable to load the Queryable Read-Only Connector identified by the Node '" + objNode.ToString() + "' as the value given for the dnr:genericManager property points to an Object which cannot be loaded as an object which implements the required IQueryableGenericIOManager interface");
}
break;
#if !NO_SYNC_HTTP
case Sesame:
case SesameV5:
case SesameV6:
//Get the Server and Store ID
server = ConfigurationLoader.GetConfigurationString(g, objNode, propServer);
if (server == null)
{
return(false);
}
store = ConfigurationLoader.GetConfigurationString(g, objNode, propStore);
if (store == null)
{
return(false);
}
ConfigurationLoader.GetUsernameAndPassword(g, objNode, true, out user, out pwd);
if (user != null && pwd != null)
{
manager = (IGenericIOManager)Activator.CreateInstance(targetType, new Object[] { server, store, user, pwd });
}
else
{
manager = (IGenericIOManager)Activator.CreateInstance(targetType, new Object[] { server, store });
}
break;
case Sparql:
//Get the Endpoint URI or the Endpoint
server = ConfigurationLoader.GetConfigurationString(g, objNode, ConfigurationLoader.CreateConfigurationNode(g, ConfigurationLoader.PropertyEndpointUri));
//What's the load mode?
String loadModeRaw = ConfigurationLoader.GetConfigurationString(g, objNode, ConfigurationLoader.CreateConfigurationNode(g, ConfigurationLoader.PropertyLoadMode));
SparqlConnectorLoadMethod loadMode = SparqlConnectorLoadMethod.Construct;
if (loadModeRaw != null)
{
try
{
#if SILVERLIGHT
loadMode = (SparqlConnectorLoadMethod)Enum.Parse(typeof(SparqlConnectorLoadMethod), loadModeRaw, false);
#else
loadMode = (SparqlConnectorLoadMethod)Enum.Parse(typeof(SparqlConnectorLoadMethod), loadModeRaw);
#endif
}
catch
{
throw new DotNetRdfConfigurationException("Unable to load the SparqlConnector identified by the Node '" + objNode.ToString() + "' as the value given for the property dnr:loadMode is not valid");
}
}
if (server == null)
{
INode endpointObj = ConfigurationLoader.GetConfigurationNode(g, objNode, ConfigurationLoader.CreateConfigurationNode(g, ConfigurationLoader.PropertyEndpoint));
if (endpointObj == null)
{
return(false);
}
temp = ConfigurationLoader.LoadObject(g, endpointObj);
if (temp is SparqlRemoteEndpoint)
{
manager = new SparqlConnector((SparqlRemoteEndpoint)temp, loadMode);
}
else
{
throw new DotNetRdfConfigurationException("Unable to load the SparqlConnector identified by the Node '" + objNode.ToString() + "' as the value given for the property dnr:endpoint points to an Object which cannot be loaded as an object which is of the type SparqlRemoteEndpoint");
}
}
else
{
//Are there any Named/Default Graph URIs
IEnumerable <Uri> defGraphs = from def in ConfigurationLoader.GetConfigurationData(g, objNode, ConfigurationLoader.CreateConfigurationNode(g, ConfigurationLoader.PropertyDefaultGraphUri))
where def.NodeType == NodeType.Uri
select((IUriNode)def).Uri;
IEnumerable <Uri> namedGraphs = from named in ConfigurationLoader.GetConfigurationData(g, objNode, ConfigurationLoader.CreateConfigurationNode(g, ConfigurationLoader.PropertyNamedGraphUri))
where named.NodeType == NodeType.Uri
select((IUriNode)named).Uri;
if (defGraphs.Any() || namedGraphs.Any())
{
manager = new SparqlConnector(new SparqlRemoteEndpoint(UriFactory.Create(server), defGraphs, namedGraphs), loadMode);
}
else
{
manager = new SparqlConnector(UriFactory.Create(server), loadMode);
}
}
break;
case SparqlHttpProtocol:
//Get the Service URI
server = ConfigurationLoader.GetConfigurationString(g, objNode, propServer);
if (server == null)
{
return(false);
}
manager = new SparqlHttpProtocolConnector(UriFactory.Create(server));
break;
case Stardog:
//Get the Server and Store
server = ConfigurationLoader.GetConfigurationString(g, objNode, propServer);
if (server == null)
{
return(false);
}
store = ConfigurationLoader.GetConfigurationString(g, objNode, propStore);
if (store == null)
{
return(false);
}
//Get User Credentials
ConfigurationLoader.GetUsernameAndPassword(g, objNode, true, out user, out pwd);
//Get Reasoning Mode
StardogReasoningMode reasoning = StardogReasoningMode.None;
String mode = ConfigurationLoader.GetConfigurationString(g, objNode, ConfigurationLoader.CreateConfigurationNode(g, ConfigurationLoader.PropertyLoadMode));
if (mode != null)
{
try
{
reasoning = (StardogReasoningMode)Enum.Parse(typeof(StardogReasoningMode), mode);
}
catch
{
reasoning = StardogReasoningMode.None;
}
}
if (user != null && pwd != null)
{
manager = new StardogConnector(server, store, reasoning, user, pwd);
}
else
{
manager = new StardogConnector(server, store, reasoning);
}
break;
case Talis:
//Get the Store Name and User credentials
store = ConfigurationLoader.GetConfigurationString(g, objNode, propStore);
if (store == null)
{
return(false);
}
ConfigurationLoader.GetUsernameAndPassword(g, objNode, true, out user, out pwd);
if (user != null && pwd != null)
{
manager = new TalisPlatformConnector(store, user, pwd);
}
else
{
manager = new TalisPlatformConnector(store);
}
break;
#endif
}
#if !NO_PROXY
//Check whether this is a proxyable manager and if we need to load proxy settings
if (manager is BaseHttpConnector)
{
INode proxyNode = ConfigurationLoader.GetConfigurationNode(g, objNode, ConfigurationLoader.CreateConfigurationNode(g, ConfigurationLoader.PropertyProxy));
if (proxyNode != null)
{
temp = ConfigurationLoader.LoadObject(g, proxyNode);
if (temp is WebProxy)
{
((BaseHttpConnector)manager).Proxy = (WebProxy)temp;
}
else
{
throw new DotNetRdfConfigurationException("Unable to load Generic Manager identified by the Node '" + objNode.ToString() + "' as the value given for the dnr:proxy property pointed to an Object which could not be loaded as an object of the required type WebProxy");
}
}
}
#endif
obj = manager;
return(manager != null);
}
