public void It_Should_Allow_Assembly_To_Be_Passed()
{
var loader = new EmbeddedResourceLoader(GetType().GetTypeInfo().Assembly);
var result = loader.Load("EmbeddedBar");
Assert.Equal("I'm the Embedded {{bar}} template.", result);
var loader2 = new EmbeddedResourceLoader(GetType().GetTypeInfo().Assembly, "must");
var result2 = loader.Load("EmbeddedBar");
Assert.Equal("I'm the Embedded {{bar}} template.", result2);
}
public static MemoryLayer CreateLayer()
{
var geodanAmsterdam = new Geometries.Point(122698, 483922);
var geodanDenBosch = new Geometries.Point(148949, 411446);
var imageStream = EmbeddedResourceLoader.Load("Images.location.png", typeof(GeodanOfficesSample));
var layer = new MemoryLayer
{
DataSource = new MemoryProvider(new[] { geodanAmsterdam, geodanDenBosch }),
Style = new SymbolStyle
{
BitmapId = BitmapRegistry.Instance.Register(imageStream),
SymbolOffset = new Offset {
Y = 64
},
SymbolScale = 0.25
},
CRS = "EPSG:28992",
Name = "Geodan Offices"
};
return(layer);
}
public static ILayer CreateCityHoverPoints()
{
var features = GenenerateTop100MajorCitiesFeatures();
var imageStream = EmbeddedResourceLoader.Load("Images.location.png", typeof(GeodanOfficesSample));
var layer = new MemoryLayer
{
DataSource = new MemoryProvider(features),
Style = new SymbolStyle
{
BitmapId = BitmapRegistry.Instance.Register(imageStream),
SymbolOffset = new Offset {
Y = 64
},
SymbolScale = 0.25
},
CRS = "EPSG:28992",
Name = "Points",
IsMapInfoLayer = true
};
return(layer);
}
public void It_Should_Be_Able_To_Find_EmbeddedResources()
{
var loader = new EmbeddedResourceLoader(GetType().GetTypeInfo().Assembly);
var result = loader.Load("EmbeddedFoo");
Assert.Equal("I'm the Embedded {{foo}} template.", result);
}
public void It_Should_Work_With_Different_Extensions()
{
var loader = new EmbeddedResourceLoader(GetType().GetTypeInfo().Assembly, "must");
var result = loader.Load("EmbeddedBar");
Assert.Equal("I'm the Embedded {{bar}} template.", result);
}
public void It_Should_Work_With_Templates_In_Folders()
{
var loader = new EmbeddedResourceLoader(GetType().GetTypeInfo().Assembly);
var result = loader.Load("EmbeddedBar");
Assert.Equal("I'm the Embedded {{bar}} template.", result);
}
public void It_Should_Not_Throw_When_Resource_Doesnt_Exist()
{
var loader = new EmbeddedResourceLoader(GetType().GetTypeInfo().Assembly);
var result = loader.Load("Foo");
Assert.Null(result);
}
/// <summary>
/// Initializes a new instance of the <see cref="T:Mapsui.UI.Forms.MapView"/> class.
/// </summary>
public MapView()
{
MyLocationFollow = false;
IsClippedToBounds = true;
UseDoubleTap = false;
MyLocationLayer = new MyLocationLayer(this)
{
Enabled = true
};
_mapCalloutLayer = new MemoryLayer()
{
Name = CalloutLayerName, IsMapInfoLayer = true
};
_mapPinLayer = new MemoryLayer()
{
Name = PinLayerName, IsMapInfoLayer = true
};
_mapDrawableLayer = new MemoryLayer()
{
Name = DrawableLayerName, IsMapInfoLayer = true
};
// Get defaults from MapControl
RotationLock = Map?.RotationLock ?? false;
ZoomLock = Map?.ZoomLock ?? true;
PanLock = Map?.PanLock ?? false;
// Add some events to _mapControl
Viewport.ViewportChanged += HandlerViewportChanged;
Info += HandlerInfo;
SingleTap += HandlerTap;
DoubleTap += HandlerTap;
LongTap += HandlerLongTap;
SizeChanged += HandlerSizeChanged;
TouchMove += (s, e) => {
RunOnUIThread(() => MyLocationFollow = false);
};
// Add MapView layers to Map
AddLayers();
// Add some events to _mapControl.Map.Layers
Map !.Layers.Changed += HandleLayersChanged;
_pictMyLocationNoCenter = EmbeddedResourceLoader.Load("Images.LocationNoCenter.svg", typeof(MapView)).LoadSvgPicture() ?? throw new MissingManifestResourceException("Images.LocationNoCenter.svg");
_pictMyLocationCenter = EmbeddedResourceLoader.Load("Images.LocationCenter.svg", typeof(MapView)).LoadSvgPicture() ?? throw new MissingManifestResourceException("Images.LocationCenter.svg");;
_pictZoomIn = EmbeddedResourceLoader.Load("Images.ZoomIn.svg", typeof(MapView)).LoadSvgPicture() ?? throw new MissingManifestResourceException("Images.ZoomIn.svg");;
_pictZoomOut = EmbeddedResourceLoader.Load("Images.ZoomOut.svg", typeof(MapView)).LoadSvgPicture() ?? throw new MissingManifestResourceException("Images.ZoomOut.svg");;
_pictNorthing = EmbeddedResourceLoader.Load("Images.RotationZero.svg", typeof(MapView)).LoadSvgPicture() ?? throw new MissingManifestResourceException("Images.RotationZero.svg");;
CreateButtons();
_pins.CollectionChanged += HandlerPinsOnCollectionChanged;
_drawable.CollectionChanged += HandlerDrawablesOnCollectionChanged;
_mapCalloutLayer.DataSource = new ObservableCollectionProvider <Callout, IFeature>(_callouts);
_mapCalloutLayer.Style = null; // We don't want a global style for this layer
_mapPinLayer.DataSource = new ObservableCollectionProvider <Pin, IFeature>(_pins);
_mapPinLayer.Style = null; // We don't want a global style for this layer
_mapDrawableLayer.DataSource = new ObservableCollectionProvider <Drawable, IFeature>(_drawable);
_mapDrawableLayer.Style = null; // We don't want a global style for this layer
}
/// <summary>
/// Tries to load a Graph 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)
{
obj = null;
IGraph output;
// Check whether to use a specific Triple Collection
INode collectionNode = ConfigurationLoader.GetConfigurationNode(g, objNode, g.CreateUriNode(UriFactory.Create(ConfigurationLoader.PropertyUsingTripleCollection)));
try
{
if (collectionNode == null)
{
// Simple Graph creation
output = (IGraph)Activator.CreateInstance(targetType);
}
else
{
// Graph with custom triple collection
BaseTripleCollection tripleCollection = ConfigurationLoader.LoadObject(g, collectionNode) as BaseTripleCollection;
if (tripleCollection == null)
{
throw new DotNetRdfConfigurationException("Unable to load the Graph identified by the Node '" + objNode.ToString() + "' as the dnr:usingTripleCollection points to an object which cannot be loaded as an instance of the required type BaseTripleCollection");
}
output = (IGraph)Activator.CreateInstance(targetType, new Object[] { tripleCollection });
}
}
catch
{
// Any error means this loader can't load this type
return(false);
}
// Now we want to find out where the data for the Graph is coming from
// Data Source loading order is Graphs, Files, Strings, Databases, Stores, URIs
IEnumerable <INode> sources;
// Load from Graphs
sources = ConfigurationLoader.GetConfigurationData(g, objNode, g.CreateUriNode(UriFactory.Create(ConfigurationLoader.PropertyFromGraph)));
foreach (INode source in sources)
{
ConfigurationLoader.CheckCircularReference(objNode, source, "dnr:fromGraph");
Object graph = ConfigurationLoader.LoadObject(g, source);
if (graph is IGraph)
{
output.Merge((IGraph)graph);
}
else
{
throw new DotNetRdfConfigurationException("Unable to load data from another Graph for the Graph identified by the Node '" + objNode.ToString() + "' as one of the values for the dnr:fromGraph property points to an Object that cannot be loaded as an object which implements the IGraph interface");
}
}
// Load from Embedded Resources
sources = ConfigurationLoader.GetConfigurationData(g, objNode, g.CreateUriNode(UriFactory.Create(ConfigurationLoader.PropertyFromEmbedded)));
foreach (INode source in sources)
{
if (source.NodeType == NodeType.Literal)
{
EmbeddedResourceLoader.Load(output, ((ILiteralNode)source).Value);
}
else
{
throw new DotNetRdfConfigurationException("Unable to load data from an Embedded Resource for the Graph identified by the Node '" + objNode.ToString() + "' as one of the values for the dnr:fromEmbedded property is not a Literal Node as required");
}
}
// Load from Files
sources = ConfigurationLoader.GetConfigurationData(g, objNode, g.CreateUriNode(UriFactory.Create(ConfigurationLoader.PropertyFromFile)));
foreach (INode source in sources)
{
if (source.NodeType == NodeType.Literal)
{
FileLoader.Load(output, ConfigurationLoader.ResolvePath(((ILiteralNode)source).Value));
}
else
{
throw new DotNetRdfConfigurationException("Unable to load data from a file for the Graph identified by the Node '" + objNode.ToString() + "' as one of the values for the dnr:fromFile property is not a Literal Node as required");
}
}
// Load from Strings
sources = ConfigurationLoader.GetConfigurationData(g, objNode, g.CreateUriNode(UriFactory.Create(ConfigurationLoader.PropertyFromString)));
foreach (INode source in sources)
{
if (source.NodeType == NodeType.Literal)
{
StringParser.Parse(output, ((ILiteralNode)source).Value);
}
else
{
throw new DotNetRdfConfigurationException("Unable to load data from a string for the Graph identified by the Node '" + objNode.ToString() + "' as one of the values for the dnr:fromString property is not a Literal Node as required");
}
}
IEnumerable <Object> connections;
// Load from Stores
IEnumerable <INode> stores = ConfigurationLoader.GetConfigurationData(g, objNode, g.CreateUriNode(UriFactory.Create(ConfigurationLoader.PropertyFromStore)));
stores.All(s => !ConfigurationLoader.CheckCircularReference(objNode, s, "dnr:fromStore"));
connections = stores.Select(s => ConfigurationLoader.LoadObject(g, s));
sources = ConfigurationLoader.GetConfigurationData(g, objNode, g.CreateUriNode(UriFactory.Create(ConfigurationLoader.PropertyWithUri)));
foreach (Object store in connections)
{
if (store is IStorageProvider)
{
foreach (INode source in sources)
{
if (source.NodeType == NodeType.Uri || source.NodeType == NodeType.Literal)
{
((IStorageProvider)store).LoadGraph(output, source.ToString());
}
else
{
throw new DotNetRdfConfigurationException("Unable to load data from a Generic Store for the Graph identified by the Node '" + objNode.ToString() + "' as one of the values for the dnr:withUri property is not a URI/Literal Node as required");
}
}
}
else if (store is ITripleStore)
{
foreach (INode source in sources)
{
if (source.NodeType == NodeType.Uri)
{
output.Merge(((ITripleStore)store)[((IUriNode)source).Uri]);
}
else if (source.NodeType == NodeType.Literal)
{
output.Merge(((ITripleStore)store)[UriFactory.Create(((ILiteralNode)source).Value)]);
}
else
{
throw new DotNetRdfConfigurationException("Unable to load data from a Store for the Graph identified by the Node '" + objNode.ToString() + "' as one of the values for the dnr:withUri property is not a URI/Literal Node as required");
}
}
}
else
{
throw new DotNetRdfConfigurationException("Unable to load data from a Store for the Graph identified by the Node '" + objNode.ToString() + "' as one of the values of the dnr:fromStore property points to an Object which cannot be loaded as an object which implements either the IStorageProvider/ITripleStore interface");
}
}
// Load from Datasets
IEnumerable <INode> ds = ConfigurationLoader.GetConfigurationData(g, objNode, g.CreateUriNode(UriFactory.Create(ConfigurationLoader.PropertyFromDataset)));
ds.All(d => !ConfigurationLoader.CheckCircularReference(objNode, d, ConfigurationLoader.PropertyFromDataset));
IEnumerable <Object> datasets = ds.Select(d => ConfigurationLoader.LoadObject(g, d));
sources = ConfigurationLoader.GetConfigurationData(g, objNode, g.CreateUriNode(UriFactory.Create(ConfigurationLoader.PropertyWithUri)));
foreach (Object dataset in datasets)
{
if (dataset is ISparqlDataset)
{
foreach (INode source in sources)
{
if (source.NodeType == NodeType.Uri)
{
output.Merge(((ISparqlDataset)dataset)[((IUriNode)sources).Uri]);
}
else if (source.NodeType == NodeType.Literal)
{
output.Merge(((ISparqlDataset)dataset)[UriFactory.Create(((ILiteralNode)source).Value)]);
}
else
{
throw new DotNetRdfConfigurationException("Unable to load data from a Dataset for the Graph identified by the Node '" + objNode.ToString() + "' as one of the values for the dnr:withUri property is not a URI/Literal Node as required");
}
}
}
else
{
throw new DotNetRdfConfigurationException("Unable to load data from a Dataset for the Graph identified by the Node '" + objNode.ToString() + "' as one of the values of the dnr:fromDataset property points to an Object which cannot be loaded as an object which implements the required ISparqlDataset interface");
}
}
// Finally load from Remote URIs
sources = ConfigurationLoader.GetConfigurationData(g, objNode, g.CreateUriNode(UriFactory.Create(ConfigurationLoader.PropertyFromUri)));
foreach (INode source in sources)
{
if (source.NodeType == NodeType.Uri)
{
UriLoader.Load(output, ((IUriNode)source).Uri);
}
else if (source.NodeType == NodeType.Literal)
{
UriLoader.Load(output, UriFactory.Create(((ILiteralNode)source).Value));
}
else
{
throw new DotNetRdfConfigurationException("Unable to load data from a URI for the Graph identified by the Node '" + objNode.ToString() + "' as one of the values for the dnr:fromUri property is not a URI/Literal Node as required");
}
}
// Then are we assigning a Base URI to this Graph which overrides any existing Base URI?
INode baseUri = ConfigurationLoader.GetConfigurationNode(g, objNode, g.CreateUriNode(UriFactory.Create(ConfigurationLoader.PropertyAssignUri)));
if (baseUri != null)
{
if (baseUri.NodeType == NodeType.Uri)
{
output.BaseUri = ((IUriNode)baseUri).Uri;
}
else if (baseUri.NodeType == NodeType.Literal)
{
output.BaseUri = UriFactory.Create(((ILiteralNode)baseUri).Value);
}
else
{
throw new DotNetRdfConfigurationException("Unable to assign a new Base URI for the Graph identified by the Node '" + objNode.ToString() + "' as the value for the dnr:assignUri property is not a URI/Literal Node as required");
}
}
// Finally we'll apply any reasoners
IEnumerable <INode> reasoners = ConfigurationLoader.GetConfigurationData(g, objNode, g.CreateUriNode(UriFactory.Create(ConfigurationLoader.PropertyReasoner)));
foreach (INode reasoner in reasoners)
{
Object temp = ConfigurationLoader.LoadObject(g, reasoner);
if (temp is IInferenceEngine)
{
((IInferenceEngine)temp).Apply(output);
}
else
{
throw new DotNetRdfConfigurationException("Unable to apply a reasoner for the Graph identified by the Node '" + objNode.ToString() + "' as one of the values for the dnr:reasoner property points to an Object which cannot be loaded as an object which implements the IInferenceEngine interface");
}
}
obj = output;
return(true);
}
/// <summary>
/// Tries to load a Triple Store 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)
{
obj = null;
ITripleStore store = null;
INode subObj;
Object temp;
// Get Property Nodes we need
INode propStorageProvider = g.CreateUriNode(UriFactory.Create(ConfigurationLoader.PropertyStorageProvider)),
propAsync = g.CreateUriNode(UriFactory.Create(ConfigurationLoader.PropertyAsync));
// Check whether to use a specific Graph Collection
INode collectionNode = ConfigurationLoader.GetConfigurationNode(g, objNode, g.CreateUriNode(UriFactory.Create(ConfigurationLoader.PropertyUsingGraphCollection)));
// Instantiate the Store Class
switch (targetType.FullName)
{
case TripleStore:
if (collectionNode == null)
{
store = new TripleStore();
}
else
{
BaseGraphCollection graphCollection = ConfigurationLoader.LoadObject(g, collectionNode) as BaseGraphCollection;
if (graphCollection == null)
{
throw new DotNetRdfConfigurationException("Unable to load the Triple Store identified by the Node '" + objNode.ToString() + "' as the dnr:usingGraphCollection points to an object which cannot be loaded as an instance of the required type BaseGraphCollection");
}
store = new TripleStore(graphCollection);
}
break;
case WebDemandTripleStore:
store = new WebDemandTripleStore();
break;
case PersistentTripleStore:
subObj = ConfigurationLoader.GetConfigurationNode(g, objNode, propStorageProvider);
if (subObj == null)
{
return(false);
}
temp = ConfigurationLoader.LoadObject(g, subObj);
if (temp is IStorageProvider)
{
store = new PersistentTripleStore((IStorageProvider)temp);
}
else
{
throw new DotNetRdfConfigurationException("Unable to load a Persistent Triple Store identified by the Node '" + objNode.ToString() + "' as the value given the for dnr:genericManager property points to an Object which could not be loaded as an object which implements the IStorageProvider interface");
}
break;
}
// Read in additional data to be added to the Store
if (store != null)
{
IEnumerable <INode> sources = ConfigurationLoader.GetConfigurationData(g, objNode, g.CreateUriNode(UriFactory.Create(ConfigurationLoader.PropertyUsingGraph)));
// Read from Graphs
foreach (INode source in sources)
{
temp = ConfigurationLoader.LoadObject(g, source);
if (temp is IGraph)
{
store.Add((IGraph)temp);
}
else
{
throw new DotNetRdfConfigurationException("Unable to load data from a Graph for the Triple Store identified by the Node '" + objNode.ToString() + "' as one of the values for the dnr:usingGraph property points to an Object that cannot be loaded as an object which implements the IGraph interface");
}
}
// Load from Embedded Resources
sources = ConfigurationLoader.GetConfigurationData(g, objNode, g.CreateUriNode(UriFactory.Create(ConfigurationLoader.PropertyFromEmbedded)));
foreach (INode source in sources)
{
if (source.NodeType == NodeType.Literal)
{
EmbeddedResourceLoader.Load(store, ((ILiteralNode)source).Value);
}
else
{
throw new DotNetRdfConfigurationException("Unable to load data from an Embedded Resource for the Graph identified by the Node '" + objNode.ToString() + "' as one of the values for the dnr:fromEmbedded property is not a Literal Node as required");
}
}
// Read from Files - we assume these files are Dataset Files
sources = ConfigurationLoader.GetConfigurationData(g, objNode, g.CreateUriNode(UriFactory.Create(ConfigurationLoader.PropertyFromFile)));
foreach (INode source in sources)
{
if (source.NodeType == NodeType.Literal)
{
FileLoader.Load(store, ConfigurationLoader.ResolvePath(((ILiteralNode)source).Value));
}
else
{
throw new DotNetRdfConfigurationException("Unable to load data from a file for the Triple Store identified by the Node '" + objNode.ToString() + "' as one of the values for the dnr:fromFile property is not a Literal Node as required");
}
}
// Finally we'll apply any reasoners
if (store is IInferencingTripleStore)
{
IEnumerable <INode> reasoners = ConfigurationLoader.GetConfigurationData(g, objNode, g.CreateUriNode(UriFactory.Create(ConfigurationLoader.PropertyReasoner)));
foreach (INode reasoner in reasoners)
{
temp = ConfigurationLoader.LoadObject(g, reasoner);
if (temp is IInferenceEngine)
{
((IInferencingTripleStore)store).AddInferenceEngine((IInferenceEngine)temp);
}
else
{
throw new DotNetRdfConfigurationException("Unable to apply a reasoner for the Graph identified by the Node '" + objNode.ToString() + "' as one of the values for the dnr:reasoner property points to an Object which cannot be loaded as an object which implements the IInferenceEngine interface");
}
}
}
// And as an absolute final step if the store is transactional we'll flush any changes we've made
if (store is ITransactionalStore)
{
((ITransactionalStore)store).Flush();
}
}
obj = store;
return(store != null);
}
/// <summary>
/// https://github.com/dotnetrdf/dotnetrdf/wiki/UserGuide-Reading-RDF
/// </summary>
public void PlayWithReadingRdf()
{
#region Reading RDF from Files
IGraph g = new Graph();
IGraph h = new Graph();
TurtleParser ttlparser = new TurtleParser();
// Load using a Filename
ttlparser.Load(g, "HelloWorld.ttl");
// Load using a StreamReader
ttlparser.Load(h, new StreamReader("HelloWorld.ttl"));
try
{
IGraph g2 = new Graph();
NTriplesParser ntparser = new NTriplesParser();
//Load using Filename
ntparser.Load(g2, "HelloWorld.nt");
}
catch (RdfParseException parseEx)
{
//This indicates a parser error e.g unexpected character, premature end of input, invalid syntax etc.
Console.WriteLine("Parser Error");
Console.WriteLine(parseEx.Message);
}
catch (RdfException rdfEx)
{
//This represents a RDF error e.g. illegal triple for the given syntax, undefined namespace
Console.WriteLine("RDF Error");
Console.WriteLine(rdfEx.Message);
}
#endregion
#region Reading RDF from URIs
try
{
IGraph g3 = new Graph();
//UriLoader.Load(g3, new Uri("http://dbpedia.org/resource/Barack_Obama"));
}
catch (RdfParseException parseEx)
{
//This indicates a parser error e.g unexpected character, premature end of input, invalid syntax etc.
Console.WriteLine("Parser Error");
Console.WriteLine(parseEx.Message);
}
catch (RdfException rdfEx)
{
//This represents a RDF error e.g. illegal triple for the given syntax, undefined namespace
Console.WriteLine("RDF Error");
Console.WriteLine(rdfEx.Message);
}
#endregion
#region Reading RDF from Embedded Resources
try
{
IGraph g4 = new Graph();
EmbeddedResourceLoader.Load(g4, "embedded.ttl, PlayWithDotNetRDF");
Console.WriteLine(g4.IsEmpty);
}
catch (RdfParseException parseEx)
{
//This indicates a parser error e.g unexpected character, premature end of input, invalid syntax etc.
Console.WriteLine("Parser Error");
Console.WriteLine(parseEx.Message);
}
catch (RdfException rdfEx)
{
//This represents a RDF error e.g. illegal triple for the given syntax, undefined namespace
Console.WriteLine("RDF Error");
Console.WriteLine(rdfEx.Message);
}
#endregion
#region Reading RDF from Strings
Graph g5 = new Graph();
StringParser.Parse(g5, "<http://example.org/a> <http://example.org/b> <http://example.org/c>.");
Graph g6 = new Graph();
NTriplesParser parser = new NTriplesParser();
parser.Load(g6, new StringReader("<http://example.org/a> <http://example.org/b> <http://example.org/c>."));
#endregion
#region Store Parsers
/*
* TripleStore store = new TripleStore();
* TriGParser trigparser = new TriGParser();
*
* //Load the Store
* trigparser.Load(store, "Example.trig");
*/
#endregion
#region Advanced Parsing
// Create a Handler and use it for parsing
CountHandler handler = new CountHandler();
TurtleParser turtleParser = new TurtleParser();
turtleParser.Load(handler, "HelloWorld.ttl");
//Print the resulting count
Console.WriteLine(handler.Count + " Triple(s)");
// https://github.com/dotnetrdf/dotnetrdf/wiki/UserGuide-Handlers-API
#endregion
/*
* Parser Class Supported Input
* NTriplesParser NTriples
* Notation3Parser Notation 3, Turtle, NTriples, some forms of TriG
* NQuadsParser NQuads, NTriples
* RdfAParser RDFa 1.0 embedded in (X)HTML, some RDFa 1.1 support
* RdfJsonParser RDF/JSON (Talis specification)
* RdfXmlParser RDF/XML
* TriGParser TriG
* TriXParser TriX
* TurtleParser Turtle, NTriples
* JsonLdParser JSON-LD
*/
}
/// <summary>
/// Tries to load a Graph 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)
{
obj = null;
IGraph output;
try
{
output = (IGraph)Activator.CreateInstance(targetType);
}
catch
{
//Any error means this loader can't load this type
return(false);
}
//Now we want to find out where the data for the Graph is coming from
//Data Source loading order is Graphs, Files, Strings, Databases, Stores, URIs
IEnumerable <INode> sources;
//Load from Graphs
sources = ConfigurationLoader.GetConfigurationData(g, objNode, ConfigurationLoader.CreateConfigurationNode(g, ConfigurationLoader.PropertyFromGraph));
foreach (INode source in sources)
{
ConfigurationLoader.CheckCircularReference(objNode, source, "dnr:fromGraph");
Object graph = ConfigurationLoader.LoadObject(g, source);
if (graph is IGraph)
{
output.Merge((IGraph)graph);
}
else
{
throw new DotNetRdfConfigurationException("Unable to load data from another Graph for the Graph identified by the Node '" + objNode.ToString() + "' as one of the values for the dnr:fromGraph property points to an Object that cannot be loaded as an object which implements the IGraph interface");
}
}
//Load from Embedded Resources
sources = ConfigurationLoader.GetConfigurationData(g, objNode, ConfigurationLoader.CreateConfigurationNode(g, ConfigurationLoader.PropertyFromEmbedded));
foreach (INode source in sources)
{
if (source.NodeType == NodeType.Literal)
{
EmbeddedResourceLoader.Load(output, ((ILiteralNode)source).Value);
}
else
{
throw new DotNetRdfConfigurationException("Unable to load data from an Embedded Resource for the Graph identified by the Node '" + objNode.ToString() + "' as one of the values for the dnr:fromEmbedded property is not a Literal Node as required");
}
}
//Load from Files
sources = ConfigurationLoader.GetConfigurationData(g, objNode, ConfigurationLoader.CreateConfigurationNode(g, ConfigurationLoader.PropertyFromFile));
foreach (INode source in sources)
{
if (source.NodeType == NodeType.Literal)
{
FileLoader.Load(output, ConfigurationLoader.ResolvePath(((ILiteralNode)source).Value));
}
else
{
throw new DotNetRdfConfigurationException("Unable to load data from a file for the Graph identified by the Node '" + objNode.ToString() + "' as one of the values for the dnr:fromFile property is not a Literal Node as required");
}
}
//Load from Strings
sources = ConfigurationLoader.GetConfigurationData(g, objNode, ConfigurationLoader.CreateConfigurationNode(g, ConfigurationLoader.PropertyFromString));
foreach (INode source in sources)
{
if (source.NodeType == NodeType.Literal)
{
StringParser.Parse(output, ((ILiteralNode)source).Value);
}
else
{
throw new DotNetRdfConfigurationException("Unable to load data from a string for the Graph identified by the Node '" + objNode.ToString() + "' as one of the values for the dnr:fromString property is not a Literal Node as required");
}
}
IEnumerable <Object> connections;
#if !NO_DATA && !NO_STORAGE
//Load from Databases
IEnumerable <INode> dbs = ConfigurationLoader.GetConfigurationData(g, objNode, ConfigurationLoader.CreateConfigurationNode(g, ConfigurationLoader.PropertyFromDatabase));
dbs.All(db => !ConfigurationLoader.CheckCircularReference(objNode, db, "dnr:fromDatabase"));
connections = dbs.Select(db => ConfigurationLoader.LoadObject(g, db));
sources = ConfigurationLoader.GetConfigurationData(g, objNode, ConfigurationLoader.CreateConfigurationNode(g, ConfigurationLoader.PropertyWithUri));
foreach (Object db in connections)
{
if (db is ISqlIOManager)
{
SqlReader reader = new SqlReader((ISqlIOManager)db);
foreach (INode source in sources)
{
if (source.NodeType == NodeType.Uri || source.NodeType == NodeType.Literal)
{
output.Merge(reader.Load(source.ToString()));
}
else
{
throw new DotNetRdfConfigurationException("Unable to load data from a database for the Graph identified by the Node '" + objNode.ToString() + "' as one of the values for the dnr:withUri property is not a URI/Literal Node as required");
}
}
}
else
{
throw new DotNetRdfConfigurationException("Unable to load data from a database for the Graph identified by the Node '" + objNode.ToString() + "' as one of the values of the dnr:fromDatabase property points to an Object which cannot be loaded as an object which implements the ISqlIOManager interface");
}
}
#endif
#if !NO_STORAGE
//Load from Stores
IEnumerable <INode> stores = ConfigurationLoader.GetConfigurationData(g, objNode, ConfigurationLoader.CreateConfigurationNode(g, ConfigurationLoader.PropertyFromStore));
stores.All(s => !ConfigurationLoader.CheckCircularReference(objNode, s, "dnr:fromStore"));
connections = stores.Select(s => ConfigurationLoader.LoadObject(g, s));
sources = ConfigurationLoader.GetConfigurationData(g, objNode, ConfigurationLoader.CreateConfigurationNode(g, ConfigurationLoader.PropertyWithUri));
foreach (Object store in connections)
{
if (store is IGenericIOManager)
{
foreach (INode source in sources)
{
if (source.NodeType == NodeType.Uri || source.NodeType == NodeType.Literal)
{
((IGenericIOManager)store).LoadGraph(output, source.ToString());
}
else
{
throw new DotNetRdfConfigurationException("Unable to load data from a Generic Store for the Graph identified by the Node '" + objNode.ToString() + "' as one of the values for the dnr:withUri property is not a URI/Literal Node as required");
}
}
}
else if (store is ITripleStore)
{
foreach (INode source in sources)
{
if (source.NodeType == NodeType.Uri)
{
output.Merge(((ITripleStore)store).Graph(((IUriNode)source).Uri));
}
else if (source.NodeType == NodeType.Literal)
{
output.Merge(((ITripleStore)store).Graph(new Uri(((ILiteralNode)source).Value)));
}
else
{
throw new DotNetRdfConfigurationException("Unable to load data from a Store for the Graph identified by the Node '" + objNode.ToString() + "' as one of the values for the dnr:withUri property is not a URI/Literal Node as required");
}
}
}
else
{
throw new DotNetRdfConfigurationException("Unable to load data from a Store for the Graph identified by the Node '" + objNode.ToString() + "' as one of the values of the dnr:fromStore property points to an Object which cannot be loaded as an object which implements either the IGenericIOManager/ITripleStore interface");
}
}
#endif
//Finally load from Remote URIs
sources = ConfigurationLoader.GetConfigurationData(g, objNode, ConfigurationLoader.CreateConfigurationNode(g, ConfigurationLoader.PropertyFromUri));
foreach (INode source in sources)
{
if (source.NodeType == NodeType.Uri)
{
#if !SILVERLIGHT
UriLoader.Load(output, ((IUriNode)source).Uri);
#else
throw new PlatformNotSupportedException("Loading Data into a Graph from a remote URI is not currently supported under Silverlight/Windows Phone 7");
#endif
}
else if (source.NodeType == NodeType.Literal)
{
#if !SILVERLIGHT
UriLoader.Load(output, new Uri(((ILiteralNode)source).Value));
#else
throw new PlatformNotSupportedException("Loading Data into a Graph from a remote URI is not currently supported under Silverlight/Windows Phone 7");
#endif
}
else
{
throw new DotNetRdfConfigurationException("Unable to load data from a URI for the Graph identified by the Node '" + objNode.ToString() + "' as one of the values for the dnr:fromUri property is not a URI/Literal Node as required");
}
}
//Then are we assigning a Base URI to this Graph which overrides any existing Base URI?
INode baseUri = ConfigurationLoader.GetConfigurationNode(g, objNode, ConfigurationLoader.CreateConfigurationNode(g, ConfigurationLoader.PropertyAssignUri));
if (baseUri != null)
{
if (baseUri.NodeType == NodeType.Uri)
{
output.BaseUri = ((IUriNode)baseUri).Uri;
}
else if (baseUri.NodeType == NodeType.Literal)
{
output.BaseUri = new Uri(((ILiteralNode)baseUri).Value);
}
else
{
throw new DotNetRdfConfigurationException("Unable to assign a new Base URI for the Graph identified by the Node '" + objNode.ToString() + "' as the value for the dnr:assignUri property is not a URI/Literal Node as required");
}
}
//Finally we'll apply any reasoners
IEnumerable <INode> reasoners = ConfigurationLoader.GetConfigurationData(g, objNode, ConfigurationLoader.CreateConfigurationNode(g, ConfigurationLoader.PropertyReasoner));
foreach (INode reasoner in reasoners)
{
Object temp = ConfigurationLoader.LoadObject(g, reasoner);
if (temp is IInferenceEngine)
{
((IInferenceEngine)temp).Apply(output);
}
else
{
throw new DotNetRdfConfigurationException("Unable to apply a reasoner for the Graph identified by the Node '" + objNode.ToString() + "' as one of the values for the dnr:reasoner property points to an Object which cannot be loaded as an object which implements the IInferenceEngine interface");
}
}
obj = output;
return(true);
}
/// <summary>
/// Tries to load a Triple Store 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)
{
obj = null;
ITripleStore store = null;
INode subObj;
bool isAsync;
Object temp;
//Get Property Nodes we need
INode propSqlManager = ConfigurationLoader.CreateConfigurationNode(g, ConfigurationLoader.PropertySqlManager),
propGenericManager = ConfigurationLoader.CreateConfigurationNode(g, ConfigurationLoader.PropertyGenericManager),
propAsync = ConfigurationLoader.CreateConfigurationNode(g, ConfigurationLoader.PropertyAsync);
//Instantiate the Store Class
switch (targetType.FullName)
{
case TripleStore:
store = new TripleStore();
break;
#if !SILVERLIGHT
case WebDemandTripleStore:
store = new WebDemandTripleStore();
break;
#endif
#if !NO_DATA && !NO_STORAGE
case SqlTripleStore:
case ThreadedSqlTripleStore:
case OnDemandTripleStore:
subObj = ConfigurationLoader.GetConfigurationNode(g, objNode, propSqlManager);
if (subObj == null)
{
return(false);
}
temp = ConfigurationLoader.LoadObject(g, subObj);
if (temp is ISqlIOManager)
{
if (targetType.FullName.Equals(SqlTripleStore))
{
store = new SqlTripleStore((ISqlIOManager)temp);
}
else if (targetType.FullName.Equals(OnDemandTripleStore))
{
store = new OnDemandTripleStore((ISqlIOManager)temp);
}
else if (temp is IThreadedSqlIOManager)
{
isAsync = ConfigurationLoader.GetConfigurationBoolean(g, objNode, propAsync, false);
store = new ThreadedSqlTripleStore((IThreadedSqlIOManager)temp, isAsync);
}
else
{
throw new DotNetRdfConfigurationException("Unable to load a SQL Triple Store identified by the Node '" + objNode.ToString() + "' as the value given for the dnr:sqlManager property points to an Object which could not be loaded as an object which implements either the ISqlIOManager/IThreadedSqlIOManager interface");
}
}
else
{
throw new DotNetRdfConfigurationException("Unable to load a SQL Triple Store identified by the Node '" + objNode.ToString() + "' as the value given for the dnr:sqlManager property points to an Object which could not be loaded as an object which implements either the ISqlIOManager interface");
}
break;
#endif
#if !NO_STORAGE
case NativeTripleStore:
subObj = ConfigurationLoader.GetConfigurationNode(g, objNode, propGenericManager);
if (subObj == null)
{
return(false);
}
temp = ConfigurationLoader.LoadObject(g, subObj);
if (temp is IQueryableGenericIOManager)
{
store = new NativeTripleStore((IQueryableGenericIOManager)temp);
}
else
{
throw new DotNetRdfConfigurationException("Unable to load a Native Triple Store identified by the Node '" + objNode.ToString() + "' as the value given for the dnr:genericManager property points to an Object which could not be loaded as an object which implements the IQueryableGenericIOManager interface");
}
break;
case PersistentTripleStore:
subObj = ConfigurationLoader.GetConfigurationNode(g, objNode, propGenericManager);
if (subObj == null)
{
return(false);
}
temp = ConfigurationLoader.LoadObject(g, subObj);
if (temp is IGenericIOManager)
{
store = new PersistentTripleStore((IGenericIOManager)temp);
}
else
{
throw new DotNetRdfConfigurationException("Unable to load a Persistent Triple Store identified by the Node '" + objNode.ToString() + "' as the value given the for dnr:genericManager property points to an Object which could not be loaded as an object which implements the IGenericIOManager interface");
}
break;
#endif
}
//Read in additional data to be added to the Store
if (store != null)
{
IEnumerable <INode> sources = ConfigurationLoader.GetConfigurationData(g, objNode, ConfigurationLoader.CreateConfigurationNode(g, "dnr:usingGraph"));
//Read from Graphs
foreach (INode source in sources)
{
temp = ConfigurationLoader.LoadObject(g, source);
if (temp is IGraph)
{
store.Add((IGraph)temp);
}
else
{
throw new DotNetRdfConfigurationException("Unable to load data from a Graph for the Triple Store identified by the Node '" + objNode.ToString() + "' as one of the values for the dnr:usingGraph property points to an Object that cannot be loaded as an object which implements the IGraph interface");
}
}
//Load from Embedded Resources
sources = ConfigurationLoader.GetConfigurationData(g, objNode, ConfigurationLoader.CreateConfigurationNode(g, ConfigurationLoader.PropertyFromEmbedded));
foreach (INode source in sources)
{
if (source.NodeType == NodeType.Literal)
{
EmbeddedResourceLoader.Load(store, ((ILiteralNode)source).Value);
}
else
{
throw new DotNetRdfConfigurationException("Unable to load data from an Embedded Resource for the Graph identified by the Node '" + objNode.ToString() + "' as one of the values for the dnr:fromEmbedded property is not a Literal Node as required");
}
}
//Read from Files - we assume these files are Dataset Files
sources = ConfigurationLoader.GetConfigurationData(g, objNode, ConfigurationLoader.CreateConfigurationNode(g, ConfigurationLoader.PropertyFromFile));
foreach (INode source in sources)
{
if (source.NodeType == NodeType.Literal)
{
FileLoader.Load(store, ConfigurationLoader.ResolvePath(((ILiteralNode)source).Value));
}
else
{
throw new DotNetRdfConfigurationException("Unable to load data from a file for the Triple Store identified by the Node '" + objNode.ToString() + "' as one of the values for the dnr:fromFile property is not a Literal Node as required");
}
}
//Finally we'll apply any reasoners
if (store is IInferencingTripleStore)
{
IEnumerable <INode> reasoners = ConfigurationLoader.GetConfigurationData(g, objNode, ConfigurationLoader.CreateConfigurationNode(g, ConfigurationLoader.PropertyReasoner));
foreach (INode reasoner in reasoners)
{
temp = ConfigurationLoader.LoadObject(g, reasoner);
if (temp is IInferenceEngine)
{
((IInferencingTripleStore)store).AddInferenceEngine((IInferenceEngine)temp);
}
else
{
throw new DotNetRdfConfigurationException("Unable to apply a reasoner for the Graph identified by the Node '" + objNode.ToString() + "' as one of the values for the dnr:reasoner property points to an Object which cannot be loaded as an object which implements the IInferenceEngine interface");
}
}
}
//And as an absolute final step if the store is transactional we'll flush any changes we've made
if (store is ITransactionalStore)
{
((ITransactionalStore)store).Flush();
}
}
obj = store;
return(store != null);
}
