本文整理汇总了C#中VDS.RDF.Parsing.SparqlQueryParser类的典型用法代码示例。如果您正苦于以下问题：C# SparqlQueryParser类的具体用法？C# SparqlQueryParser怎么用？C# SparqlQueryParser使用的例子？那么恭喜您, 这里精选的类代码示例或许可以为您提供帮助。
SparqlQueryParser类属于VDS.RDF.Parsing命名空间，在下文中一共展示了SparqlQueryParser类的20个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于我们的系统推荐出更棒的C#代码示例。
示例1: SparqlBindLazy
public void SparqlBindLazy()
{
String query = "PREFIX fn: <" + XPathFunctionFactory.XPathFunctionsNamespace + "> SELECT ?triple WHERE { ?s ?p ?o . BIND(fn:concat(STR(?s), ' ', STR(?p), ' ', STR(?o)) AS ?triple) } LIMIT 1";
TripleStore store = new TripleStore();
Graph g = new Graph();
FileLoader.Load(g, "InferenceTest.ttl");
store.Add(g);
SparqlQueryParser parser = new SparqlQueryParser();
SparqlQuery q = parser.ParseFromString(query);
Console.WriteLine(q.ToAlgebra().ToString());
Assert.IsTrue(q.ToAlgebra().ToString().Contains("LazyBgp"), "Should have been optimised to use a Lazy BGP");
Console.WriteLine();
Object results = q.Evaluate(store);
if (results is SparqlResultSet)
{
SparqlResultSet rset = (SparqlResultSet)results;
foreach (SparqlResult r in rset)
{
Console.WriteLine(r.ToString());
}
Assert.IsTrue(rset.Count == 1, "Expected exactly 1 results");
Assert.IsTrue(rset.All(r => r.HasValue("triple")), "All Results should have had a value for ?triple");
}
else
{
Assert.Fail("Expected a SPARQL Result Set");
}
}
开发者ID:almostEric，项目名称:DotNetRDF-4.0，代码行数:32，代码来源:SparqlTests2.cs
示例2: BindRdfDataObjects
public IEnumerable<IDataObject> BindRdfDataObjects(XDocument rdfXmlDocument,
IList<OrderingDirection> orderingDirections)
{
var g = new Graph();
#if PORTABLE || WINDOWS_PHONE
var parser = new RdfXmlParser(RdfXmlParserMode.Streaming);
// This is pretty nasty, having to deserialize only to go through parsing again
parser.Load(g, new System.IO.StringReader(rdfXmlDocument.ToString()));
#else
var parser = new RdfXmlParser(RdfXmlParserMode.DOM);
parser.Load(g, rdfXmlDocument.AsXmlDocument());
#endif
var p = new VDS.RDF.Query.LeviathanQueryProcessor(new InMemoryDataset(g));
var queryString = MakeOrderedResourceQuery(orderingDirections);
var sparqlParser = new SparqlQueryParser();
var query = sparqlParser.ParseFromString(queryString);
var queryResultSet = p.ProcessQuery(query) as VDS.RDF.Query.SparqlResultSet;
foreach (var row in queryResultSet.Results)
{
INode uriNode;
if (row.TryGetBoundValue("x", out uriNode) && uriNode is IUriNode)
{
yield return BindRdfDataObject(uriNode as IUriNode, g);
}
}
}
开发者ID:GTuritto，项目名称:BrightstarDB，代码行数:26，代码来源:SparqlResultDataObjectHelper.cs
示例3: TestParser
public void TestParser()
{
const string exp = "select ?t where { ?t a ?tt }";
var parser = new SparqlQueryParser();
var query = parser.ParseFromString(exp);
Assert.IsNotNull(query);
}
开发者ID:phatcher，项目名称:BrightstarDB，代码行数:7，代码来源:QueryTests.cs
示例4: SparqlDefaultGraphExists3
public void SparqlDefaultGraphExists3()
{
SqlDataset dataset = new SqlDataset(new MicrosoftSqlStoreManager("localhost", "unit_test", "example", "password"));
//Create Default Graph only if required
if (!dataset.HasGraph(null))
{
Graph g = new Graph();
g.Assert(g.CreateUriNode(new Uri("http://example.org/subject")), g.CreateUriNode(new Uri("http://example.org/predicate")), g.CreateUriNode(new Uri("http://example.org/object")));
dataset.AddGraph(g);
dataset.Flush();
}
SparqlQueryParser parser = new SparqlQueryParser();
SparqlQuery q = parser.ParseFromString("ASK WHERE { GRAPH ?g { ?s ?p ?o }}");
LeviathanQueryProcessor lvn = new LeviathanQueryProcessor(dataset);
Object results = lvn.ProcessQuery(q);
if (results is SparqlResultSet)
{
Assert.IsTrue(((SparqlResultSet)results).Result);
}
else
{
Assert.Fail("ASK Query did not return a SPARQL Result Set as expected");
}
dataset.Flush();
}
开发者ID:almostEric，项目名称:DotNetRDF-4.0，代码行数:28，代码来源:DefaultGraphTests.cs
示例5: SparqlFunctionsIsNumeric
public void SparqlFunctionsIsNumeric()
{
Graph g = new Graph();
IUriNode subj = g.CreateUriNode(new Uri("http://example.org/subject"));
IUriNode pred = g.CreateUriNode(new Uri("http://example.org/predicate"));
g.Assert(subj, pred, (12).ToLiteral(g));
g.Assert(subj, pred, g.CreateLiteralNode("12"));
g.Assert(subj, pred, g.CreateLiteralNode("12", new Uri(XmlSpecsHelper.XmlSchemaDataTypeNonNegativeInteger)));
g.Assert(subj, pred, g.CreateLiteralNode("12", new Uri(XmlSpecsHelper.XmlSchemaDataTypeNonPositiveInteger)));
g.Assert(subj, pred, g.CreateLiteralNode("1200", new Uri(XmlSpecsHelper.XmlSchemaDataTypeByte)));
g.Assert(subj, pred, ((byte)50).ToLiteral(g));
g.Assert(subj, pred, g.CreateLiteralNode("-50", new Uri(XmlSpecsHelper.XmlSchemaDataTypeByte)));
g.Assert(subj, pred, g.CreateLiteralNode("-50", new Uri(XmlSpecsHelper.XmlSchemaDataTypeUnsignedByte)));
g.Assert(subj, pred, g.CreateUriNode(new Uri("http://example.org")));
TripleStore store = new TripleStore();
store.Add(g);
SparqlQueryParser parser = new SparqlQueryParser();
SparqlQuery q = parser.ParseFromString("SELECT ?obj (IsNumeric(?obj) AS ?IsNumeric) WHERE { ?s ?p ?obj }");
Object results = store.ExecuteQuery(q);
Assert.IsTrue(results is SparqlResultSet, "Result should be a SPARQL Result Set");
TestTools.ShowResults(results);
}
开发者ID:almostEric，项目名称:DotNetRDF-4.0，代码行数:27，代码来源:SparqlNewFunctions.cs
示例6: fclsInspect
public fclsInspect(SparqlQuery query, long parseTime, String origQuery)
{
InitializeComponent();
this.lblParseTime.Text = "Took " + parseTime + "ms to parse";
this.txtQuery.Text = this._formatter.Format(query);
this.txtAlgebra.Text = query.ToAlgebra().ToString();
//Compute the actual syntax compatability
SparqlQueryParser parser = new SparqlQueryParser();
parser.SyntaxMode = SparqlQuerySyntax.Sparql_1_0;
try
{
SparqlQuery q = parser.ParseFromString(origQuery);
this.lblSyntaxCompatability.Text += " SPARQL 1.0 (Standard)";
}
catch
{
try
{
parser.SyntaxMode = SparqlQuerySyntax.Sparql_1_1;
SparqlQuery q = parser.ParseFromString(origQuery);
this.lblSyntaxCompatability.Text += " SPARQL 1.1 (Current Working Draft Standard)";
}
catch
{
parser.SyntaxMode = SparqlQuerySyntax.Extended;
SparqlQuery q = parser.ParseFromString(origQuery);
this.lblSyntaxCompatability.Text += " SPARQL 1.1 (Implementation specific extensions)";
}
}
}
开发者ID:almostEric，项目名称:DotNetRDF-4.0，代码行数:32，代码来源:fclsInspect.cs
示例7: ExecuteQuery
public SparqlResult ExecuteQuery(SparqlQueryContext queryContext, IList<string> datasetGraphUris)
{
var parser = new SparqlQueryParser();
var query = parser.ParseFromString(queryContext.SparqlQuery);
var sparqlResults = _queryProcessor.ProcessQuery(query);
return new SparqlResult(sparqlResults, queryContext);
}
开发者ID:jaensen，项目名称:BrightstarDB，代码行数:7，代码来源:SparqlUpdatableStore.cs
示例8: SparqlGroupByAssignmentExpression
public void SparqlGroupByAssignmentExpression()
{
String query = "SELECT ?s ?sum WHERE { ?s ?p ?o } GROUP BY ?s (1 + 2 AS ?sum)";
SparqlQueryParser parser = new SparqlQueryParser();
SparqlQuery q = parser.ParseFromString(query);
SparqlFormatter formatter = new SparqlFormatter();
Console.WriteLine(formatter.Format(q));
Console.WriteLine();
QueryableGraph g = new QueryableGraph();
FileLoader.Load(g, "InferenceTest.ttl");
Object results = g.ExecuteQuery(q);
if (results is SparqlResultSet)
{
SparqlResultSet rset = (SparqlResultSet)results;
TestTools.ShowResults(rset);
Assert.IsTrue(rset.All(r => r.HasValue("s") && r.HasValue("sum")), "All Results should have a ?s and a ?sum variable");
}
else
{
Assert.Fail("Didn't get a Result Set as expected");
}
}
开发者ID:almostEric，项目名称:DotNetRDF-4.0，代码行数:26，代码来源:GroupByTests.cs
示例9: SparqlAlgebraReverseSimple
public void SparqlAlgebraReverseSimple()
{
List<String> tests = new List<string>()
{
"SELECT * WHERE { ?s ?p ?o }",
"SELECT ?s WHERE { ?s ?p ?o }",
"SELECT ?p ?o WHERE { ?s ?p ?o }",
"PREFIX fn: <" + XPathFunctionFactory.XPathFunctionsNamespace + "> SELECT (fn:concat(?s, ?p) AS ?string) WHERE {?s ?p ?o}",
"SELECT * WHERE {?s ?p ?o . ?o ?x ?y }",
"SELECT * WHERE {?s ?p ?o . OPTIONAL {?o ?x ?y} }",
"SELECT * WHERE {?s ?p ?o . OPTIONAL {?o ?x ?y . FILTER(BOUND(?s)) } }"
};
SparqlQueryParser parser = new SparqlQueryParser();
foreach (String test in tests)
{
Console.WriteLine("Test Input:");
Console.WriteLine(test);
Console.WriteLine();
Console.WriteLine("Parsed Query:");
SparqlQuery q = parser.ParseFromString(test);
Console.WriteLine(q.ToString());
Console.WriteLine();
Console.WriteLine("Algebra:");
Console.WriteLine(q.ToAlgebra().ToString());
Console.WriteLine();
Console.WriteLine("Algebra Reverse Transformed to Query:");
Console.WriteLine(q.ToAlgebra().ToQuery().ToString());
Console.WriteLine();
Console.WriteLine();
}
}
开发者ID:almostEric，项目名称:DotNetRDF-4.0，代码行数:32，代码来源:AlgebraReverseTranslation.cs
示例10: SparqlBind
public void SparqlBind()
{
String query = "PREFIX fn: <" + XPathFunctionFactory.XPathFunctionsNamespace + "> SELECT ?triple WHERE { ?s ?p ?o . BIND(fn:concat(STR(?s), ' ', STR(?p), ' ', STR(?o)) AS ?triple) }";
TripleStore store = new TripleStore();
Graph g = new Graph();
FileLoader.Load(g, "InferenceTest.ttl");
store.Add(g);
SparqlQueryParser parser = new SparqlQueryParser();
SparqlQuery q = parser.ParseFromString(query);
Object results = q.Evaluate(store);
if (results is SparqlResultSet)
{
SparqlResultSet rset = (SparqlResultSet)results;
foreach (SparqlResult r in rset)
{
Console.WriteLine(r.ToString());
}
Assert.IsTrue(rset.Count > 0, "Expected 1 or more results");
}
else
{
Assert.Fail("Expected a SPARQL Result Set");
}
}
开发者ID:almostEric，项目名称:DotNetRDF-4.0，代码行数:27，代码来源:SparqlTests2.cs
示例11: Execute
static object Execute(TripleStore store, string sparql)
{
InMemoryDataset ds = new InMemoryDataset(store);
ISparqlQueryProcessor processor = new LeviathanQueryProcessor(ds);
SparqlQueryParser sparqlparser = new SparqlQueryParser();
SparqlQuery query = sparqlparser.ParseFromString(sparql);
return processor.ProcessQuery(query);
}
开发者ID:rvesse，项目名称:NuGet.Services.Metadata，代码行数:8，代码来源:SparqlHelpers.cs
示例12: BaseSparqlView
/// <summary>
/// Creates a new SPARQL View
/// </summary>
/// <param name="sparqlQuery">SPARQL Query</param>
/// <param name="store">Triple Store to query</param>
public BaseSparqlView(String sparqlQuery, ITripleStore store)
{
SparqlQueryParser parser = new SparqlQueryParser();
this._q = parser.ParseFromString(sparqlQuery);
this._store = store;
this._async = new UpdateViewDelegate(this.UpdateViewInternal);
this.Initialise();
}
开发者ID:jbunzel，项目名称:MvcRQ_git，代码行数:14，代码来源:SparqlView.cs
示例13: Setup
public void Setup()
{
this._parser = new SparqlQueryParser();
TripleStore store = new TripleStore();
Graph g = new Graph();
FileLoader.Load(g, "describe-algos.ttl");
store.Add(g);
this._data = new InMemoryDataset(store);
}
开发者ID:almostEric，项目名称:DotNetRDF-4.0，代码行数:9，代码来源:DescribeAlgorithms.cs
示例14: ParseSparql
public static SparqlQuery ParseSparql(string exp)
{
var parser = new SparqlQueryParser(SparqlQuerySyntax.Extended);
var expressionFactories = parser.ExpressionFactories.ToList();
expressionFactories.Add(new BrightstarFunctionFactory());
parser.ExpressionFactories = expressionFactories;
var query = parser.ParseFromString(exp);
return query;
}
开发者ID:GTuritto，项目名称:BrightstarDB，代码行数:9，代码来源:StoreExtensions.cs
示例15: SparqlResultSetToDataTable2
public void SparqlResultSetToDataTable2()
{
String query = "PREFIX ex: <http://example.org/vehicles/> SELECT * WHERE {?s a ex:Car . OPTIONAL { ?s ex:Speed ?speed }}";
SparqlQueryParser parser = new SparqlQueryParser();
SparqlQuery q = parser.ParseFromString(query);
Graph g = new Graph();
FileLoader.Load(g, "InferenceTest.ttl");
Object results = g.ExecuteQuery(q);
if (results is SparqlResultSet)
{
SparqlResultSet rset = (SparqlResultSet)results;
DataTable table = new DataTable();
foreach (String var in rset.Variables)
{
table.Columns.Add(new DataColumn(var, typeof(INode)));
}
foreach (SparqlResult r in rset)
{
DataRow row = table.NewRow();
foreach (String var in rset.Variables)
{
if (r.HasValue(var))
{
row[var] = r[var];
}
else
{
row[var] = null;
}
}
table.Rows.Add(row);
}
Assert.AreEqual(rset.Variables.Count(), table.Columns.Count, "Number of Columns should be equal");
Assert.AreEqual(rset.Count, table.Rows.Count, "Number of Rows should be equal");
foreach (DataRow row in table.Rows)
{
foreach (DataColumn col in table.Columns)
{
Object temp = row[col];
Console.Write(col.ColumnName + " = " + ((temp != null) ? temp.ToString() : String.Empty) + " , ");
}
Console.WriteLine();
}
}
else
{
Assert.Fail("Query should have returned a Result Set");
}
}
开发者ID:almostEric，项目名称:DotNetRDF-4.0，代码行数:56，代码来源:DataTableTests.cs
示例16: GetResultModel
/// <summary>
/// Determines the type of model that will be returned by the specified SPARQL query
/// </summary>
/// <param name="sparqlQuery"></param>
/// <returns></returns>
/// <exception cref="ArgumentNullException">raised if <paramref name="sparqlQuery"/> is NULL</exception>
/// <exception cref="ArgumentException">rasised if <paramref name="sparqlQuery"/> is an empty string</exception>
/// <exception cref="VDS.RDF.Parsing.RdfParseException">raised if the sparql query could not be parsed</exception>
public static SerializableModel GetResultModel(string sparqlQuery)
{
if (sparqlQuery == null) throw new ArgumentNullException("sparqlQuery", Strings.BrightstarServiceClient_QueryMustNotBeNull);
if (String.IsNullOrEmpty(sparqlQuery)) throw new ArgumentException(Strings.BrightstarServiceClient_QueryMustNotBeEmptyString, "sparqlQuery");
var p = new SparqlQueryParser();
var q = p.ParseFromString(sparqlQuery);
switch (q.QueryType)
{
case SparqlQueryType.Construct:
case SparqlQueryType.Describe:
case SparqlQueryType.DescribeAll:
return SerializableModel.RdfGraph;
default:
return SerializableModel.SparqlResultSet;
}
}
开发者ID:GTuritto，项目名称:BrightstarDB，代码行数:24，代码来源:SparqlQueryHelper.cs
示例17: SparqlParsingNestedGraphPatternFirstItem2
public void SparqlParsingNestedGraphPatternFirstItem2()
{
try
{
SparqlQueryParser parser = new SparqlQueryParser();
SparqlQuery q = parser.ParseFromFile("childgraphpattern2.rq");
Console.WriteLine(q.ToString());
Console.WriteLine();
Console.WriteLine(q.ToAlgebra().ToString());
}
catch (RdfParseException parseEx)
{
TestTools.ReportError("Parsing Error", parseEx, true);
}
}
开发者ID:almostEric，项目名称:DotNetRDF-4.0，代码行数:16，代码来源:SparqlParsingComplex.cs
示例18: ParseSparql
private static SparqlQuery ParseSparql(string exp)
{
var parser = new SparqlQueryParser(SparqlQuerySyntax.Extended);
var expressionFactories = parser.ExpressionFactories.ToList();
expressionFactories.Add(new BrightstarFunctionFactory());
parser.ExpressionFactories = expressionFactories;
lock (SparqlParserLock)
{
// Lock is required because dotNetRDF currently has
// a contention issue in its Trie implementation
// This may be fixed in 0.7.1
// TODO: Check if this is needed when we upgrade to 0.7.x
var query = parser.ParseFromString(exp);
return query;
}
}
开发者ID:rharrisxtheta，项目名称:BrightstarDB，代码行数:16，代码来源:SparqlQueryHandler.cs
示例19: SparqlServiceUsingDBPediaAndBindings
public void SparqlServiceUsingDBPediaAndBindings()
{
String query = "SELECT * WHERE { SERVICE <http://dbpedia.org/sparql> { ?s a ?type } } BINDINGS ?s { ( <http://dbpedia.org/resource/Southampton> ) ( <http://dbpedia.org/resource/Ilkeston> ) }";
SparqlQueryParser parser = new SparqlQueryParser();
SparqlQuery q = parser.ParseFromString(query);
LeviathanQueryProcessor processor = new LeviathanQueryProcessor(new TripleStore());
Object results = processor.ProcessQuery(q);
if (results is SparqlResultSet)
{
TestTools.ShowResults(results);
}
else
{
Assert.Fail("Should have returned a SPARQL Result Set");
}
}
开发者ID:almostEric，项目名称:DotNetRDF-4.0，代码行数:17，代码来源:ServiceTests.cs
示例20: SparqlServiceWithNonExistentService
public void SparqlServiceWithNonExistentService()
{
String query = "SELECT * WHERE { SERVICE <http://www.dotnetrdf.org/noSuchService> { ?s a ?type } } LIMIT 10";
SparqlQueryParser parser = new SparqlQueryParser();
SparqlQuery q = parser.ParseFromString(query);
LeviathanQueryProcessor processor = new LeviathanQueryProcessor(new TripleStore());
try
{
Object results = processor.ProcessQuery(q);
Assert.Fail("Should have errored");
}
catch (RdfQueryException queryEx)
{
Console.WriteLine("Errored as expected");
TestTools.ReportError("Query Error", queryEx, false);
}
}
开发者ID:almostEric，项目名称:DotNetRDF-4.0，代码行数:18，代码来源:ServiceTests.cs
注：本文中的VDS.RDF.Parsing.SparqlQueryParser类示例由纯净天空整理自Github/MSDocs等源码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。 |
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