/// <summary>
/// Adds a Graph into the Triple Store using the desired Merge Behaviour
/// </summary>
/// <param name="g">Graph to add</param>
/// <param name="mergeIfExists">Whether the Graph should be merged with an existing Graph with the same Base Uri</param>
public override void Add(IGraph g, bool mergeIfExists)
{
//Check if it already exists
bool exists = this._graphs.Contains(g.BaseUri);
if (exists && !mergeIfExists)
{
throw new RdfException("The Graph you tried to add already exists in the Graph Collection");
}
else if (exists)
{
//It already exists as a SqlGraph in the collection
//Load with merging
this._graphs[g.BaseUri].Merge(g);
}
else
{
if (g.BaseUri == null)
{
g.BaseUri = new Uri(GraphCollection.DefaultGraphUri);
}
//Move it into a SqlGraph using our Shared Manager
SqlGraph h = new SqlGraph(g.BaseUri, this._manager);
//Do a direct copy of Triples
h.Assert(g.Triples);
//Load with no merging
base.Add(h, mergeIfExists);
}
}
/// <summary>
/// Internal Method which loads the data from the SQL backed Store when the class is instantiated
/// </summary>
protected virtual void LoadInternal()
{
try
{
//Get all the Graphs
List <Uri> graphUris = this._manager.GetGraphUris();
foreach (Uri u in graphUris)
{
//Create a SQL Graph
//This will load that Graph automatically
SqlGraph g = new SqlGraph(u, this._manager);
//Apply Inference
this.ApplyInference(g);
//Add to Graph Collection
this._graphs.Add(g, false);
}
}
catch
{
throw;
}
}
/// <summary>
/// Internal Method which performs multi-threaded loading of data
/// </summary>
private void LoadGraphs()
{
try
{
Uri u = this.GetNextUri();
while (u != null)
{
//Create a SQL Graph
//This will load that Graph automatically
SqlGraph g = new SqlGraph(u, this._manager);
//Add to Graph Collection
try
{
Monitor.Enter(this._graphs);
this.ApplyInference(g);
lock (this._graphs)
{
this._graphs.Add(g, false);
}
}
finally
{
Monitor.Exit(this._graphs);
}
//Get the Next Uri
u = this.GetNextUri();
}
}
catch (ThreadAbortException)
{
//We've been terminated, don't do anything
Thread.ResetAbort();
}
catch (Exception ex)
{
throw new RdfStorageException("Error in Threaded Loader in Thread ID " + Thread.CurrentThread.ManagedThreadId, ex);
}
}
/// <summary>
/// Internal Method which performs multi-threaded loading of data
/// </summary>
private void LoadGraphs()
{
try
{
Uri u = this.GetNextUri();
while (u != null)
{
//Create a SQL Graph
//This will load that Graph automatically
SqlGraph g = new SqlGraph(u, this._manager);
//Add to Graph Collection
try
{
Monitor.Enter(this._graphs);
this.ApplyInference(g);
lock (this._graphs)
{
this._graphs.Add(g, false);
}
}
finally
{
Monitor.Exit(this._graphs);
}
//Get the Next Uri
u = this.GetNextUri();
}
}
catch (ThreadAbortException)
{
//We've been terminated, don't do anything
Thread.ResetAbort();
}
catch (Exception ex)
{
throw new RdfStorageException("Error in Threaded Loader in Thread ID " + Thread.CurrentThread.ManagedThreadId, ex);
}
}
/// <summary>
/// Adds a Graph into the Triple Store using the desired Merge Behaviour
/// </summary>
/// <param name="g">Graph to add</param>
/// <param name="mergeIfExists">Whether the Graph should be merged with an existing Graph with the same Base Uri</param>
public override void Add(IGraph g, bool mergeIfExists)
{
//Check if it already exists
bool exists = this._graphs.Contains(g.BaseUri);
if (exists && !mergeIfExists)
{
throw new RdfException("The Graph you tried to add already exists in the Graph Collection");
}
else if (exists)
{
//It already exists as a SqlGraph in the collection
//Load with merging
this._graphs[g.BaseUri].Merge(g);
}
else
{
if (g.BaseUri == null) g.BaseUri = new Uri(GraphCollection.DefaultGraphUri);
//Move it into a SqlGraph using our Shared Manager
SqlGraph h = new SqlGraph(g.BaseUri, this._manager);
//Do a direct copy of Triples
h.Assert(g.Triples);
//Load with no merging
base.Add(h, mergeIfExists);
}
}
/// <summary>
/// Internal Method which loads the data from the SQL backed Store when the class is instantiated
/// </summary>
protected virtual void LoadInternal()
{
try
{
//Get all the Graphs
List<Uri> graphUris = this._manager.GetGraphUris();
foreach (Uri u in graphUris)
{
//Create a SQL Graph
//This will load that Graph automatically
SqlGraph g = new SqlGraph(u, this._manager);
//Apply Inference
this.ApplyInference(g);
//Add to Graph Collection
this._graphs.Add(g, false);
}
}
catch
{
throw;
}
}
public static void Main(string[] args)
{
StreamWriter output = new StreamWriter("SQLStoreTest.txt");
Console.SetOut(output);
Console.WriteLine("## SQL Store Test");
//Set default parameters if insufficient supplied
if (args.Length < 5)
{
args = new string[] { "read", "10", "false", "false", "8" };
}
try
{
//Read in the Parameters
String testMode = args[0].ToLower();
if (testMode != "read" && testMode != "write")
{
testMode = "read";
}
int runs = Int32.Parse(args[1]);
if (runs < 1) runs = 1;
bool reuseManager = Boolean.Parse(args[2]);
bool useThreadedManager = Boolean.Parse(args[3]);
int threads = Int32.Parse(args[4]);
if (threads < 1) threads = 4;
#region Basic Tests
//Do some basic operations
Console.WriteLine("# Basic Read and Write of normal Graphs");
//Read in a Test Graph from a Turtle File
Graph g = new Graph();
g.BaseUri = new Uri("http://www.dotnetrdf.org/Tests/SQLStore/");
TurtleParser ttlparser = new TurtleParser();
ttlparser.Load(g, "InferenceTest.ttl");
Console.WriteLine("Loaded the InferenceTest.ttl file as the Test Graph");
Console.WriteLine("Attempting to save into the SQL Store");
//Save to a Store using SqlWriter
SqlWriter sqlwriter = new SqlWriter("dotnetrdf_experimental", "sa", "20sQl08");
sqlwriter.Save(g, false);
Console.WriteLine("Saved to the SQL Store");
//Read back from the Store using SqlReader
IGraph h = new Graph();
Console.WriteLine("Trying to read the Graph back from the SQL Store");
SqlReader sqlreader = new SqlReader("dotnetrdf_experimental", "sa", "20sQl08");
h = sqlreader.Load("http://www.dotnetrdf.org/Tests/SQLStore/");
Console.WriteLine("Read from SQL Store OK");
foreach (String prefix in h.NamespaceMap.Prefixes)
{
Console.WriteLine(prefix + ": <" + h.NamespaceMap.GetNamespaceUri(prefix).ToString() + ">");
}
Console.WriteLine();
foreach (Triple t in h.Triples)
{
Console.WriteLine(t.ToString());
}
Console.WriteLine("# Test Passed");
Console.WriteLine();
//Demonstrate that the SqlGraph persists stuff to the Store
Console.WriteLine("# Advanced Read and Write with a SQLGraph");
SqlGraph s = new SqlGraph(new Uri("http://www.dotnetrdf.org/Tests/SQLStore"), "dotnetrdf_experimental", "sa", "20sQl08");
Console.WriteLine("Opened the SQL Graph OK");
INode type = s.CreateUriNode("rdf:type");
s.Assert(new Triple(type, type, type));
Console.WriteLine("Asserted something");
s.NamespaceMap.AddNamespace("ex", new Uri("http://www.example.org/"));
Console.WriteLine("Added a Namespace");
s.NamespaceMap.AddNamespace("ex", new Uri("http://www.example.org/changedNamespace/"));
Console.WriteLine("Changed a Namespace");
Console.WriteLine("Reopening to see if stuff gets loaded correctly");
s = new SqlGraph(new Uri("http://www.dotnetrdf.org/Tests/SQLStore"), "dotnetrdf_experimental", "sa", "20sQl08");
foreach (String prefix in s.NamespaceMap.Prefixes)
{
Console.WriteLine(prefix + ": <" + s.NamespaceMap.GetNamespaceUri(prefix).ToString() + ">");
}
Console.WriteLine();
foreach (Triple t in s.Triples)
{
Console.WriteLine(t.ToString());
}
Console.WriteLine();
s.Retract(new Triple(type, type, type));
Console.WriteLine("Retracted something");
foreach (Triple t in s.Triples)
{
Console.WriteLine(t.ToString());
}
#endregion
#region Benchmarking Tests
Console.WriteLine();
Console.WriteLine("# Performance Benchmarking for a Large TripleStore");
Console.WriteLine("Performing " + runs + " Runs to gauge average performance");
int totalTriples = 0;
long totalTime = 0;
long diff;
DateTime start, finish;
int triples;
if (testMode.Equals("read"))
{
//Read Benchmark
Console.WriteLine("Read Benchmarking");
if (reuseManager)
{
Console.WriteLine("Reusing ISQLIOManager which should improve performance");
}
if (useThreadedManager)
{
Console.WriteLine("Using IThreadedSQLIOManager which should improve perfomance");
}
//Create the Manager
IThreadedSqlIOManager manager;
manager = new MicrosoftSqlStoreManager("localhost", "bbcone", "sa", "20sQl08");
if (reuseManager)
{
manager.PreserveState = true;
}
//Perform the Runs
for (int i = 1; i <= runs; i++)
{
Console.WriteLine("Run #" + i);
Debug.WriteLine("Run #" + i);
//Start Profiling
start = DateTime.Now;
Console.WriteLine("Starting Loading @ " + start.ToString(TestSuite.TestSuiteTimeFormat));
Debug.WriteLine("Start @ " + start.ToString(TestSuite.TestSuiteTimeFormat));
//Set-up the Manager as required by the Test Options
ITripleStore bigstore;
if (reuseManager)
{
if (useThreadedManager)
{
bigstore = new ThreadedSqlTripleStore((IThreadedSqlIOManager)manager, threads);
}
else
{
bigstore = new SqlTripleStore(manager);
}
}
else
{
if (useThreadedManager)
{
bigstore = new ThreadedSqlTripleStore(manager, threads);
}
else
{
bigstore = new SqlTripleStore(manager);
}
}
//End Profiling
finish = DateTime.Now;
Console.WriteLine("Finished Loading @ " + finish.ToString(TestSuite.TestSuiteTimeFormat));
Debug.WriteLine("Finish @ " + finish.ToString(TestSuite.TestSuiteTimeFormat));
//Increment Totals for final average calculations later
triples = bigstore.Triples.Count();
totalTriples += triples;
Console.WriteLine(triples + " Triples loaded");
//Compute Load Rate
diff = Microsoft.VisualBasic.DateAndTime.DateDiff(Microsoft.VisualBasic.DateInterval.Second, start, finish, Microsoft.VisualBasic.FirstDayOfWeek.Monday, Microsoft.VisualBasic.FirstWeekOfYear.System);
totalTime += diff;
Console.WriteLine("Load took " + diff + " seconds");
Console.WriteLine("Load Rate was " + triples / diff + " Triples/Second");
Debug.WriteLine("Load Rate was " + triples / diff + " Triples/Second");
Console.WriteLine();
bigstore.Dispose();
}
}
else
{
//Write Benchmark
Console.WriteLine("Write Benchmarking");
//Load in the Source Data from our Test Store
ITripleStore origstore;
IThreadedSqlIOManager readManager = new MicrosoftSqlStoreManager("localhost", "dotnetrdf_experimental", "sa", "20sQl08");
Console.WriteLine();
Console.WriteLine("Obtaining Test Data");
start = DateTime.Now;
Console.WriteLine("Starting Loading @ " + start.ToString(TestSuite.TestSuiteTimeFormat));
Debug.WriteLine("Start @ " + start.ToString(TestSuite.TestSuiteTimeFormat));
//Do the Load
origstore = new ThreadedSqlTripleStore(readManager,8);
finish = DateTime.Now;
triples = origstore.Triples.Count();
Console.WriteLine("Finished Loading @ " + finish.ToString(TestSuite.TestSuiteTimeFormat));
Debug.WriteLine("Finish @ " + finish.ToString(TestSuite.TestSuiteTimeFormat));
//Compute Load Rate
diff = Microsoft.VisualBasic.DateAndTime.DateDiff(Microsoft.VisualBasic.DateInterval.Second, start, finish, Microsoft.VisualBasic.FirstDayOfWeek.Monday, Microsoft.VisualBasic.FirstWeekOfYear.System);
Console.WriteLine("Load took " + diff + " seconds");
if (diff > 0)
{
Console.WriteLine("Load Rate was " + triples / diff + " Triples/Second");
Debug.WriteLine("Load Rate was " + triples / diff + " Triples/Second");
}
Console.WriteLine();
IThreadedSqlIOManager writeManager;
for (int i = 1; i <= runs; i++)
{
Console.WriteLine("Run #" + i);
Debug.WriteLine("Run #" + i);
//Create a New Manager for every write
writeManager = new MicrosoftSqlStoreManager("localhost", "write_test", "sa", "20sQl08");
//Create SqlWriter
ThreadedSqlStoreWriter writer = new ThreadedSqlStoreWriter();
//Start Profiling
start = DateTime.Now;
Console.WriteLine("Starting Loading @ " + start.ToString(TestSuite.TestSuiteTimeFormat));
Debug.WriteLine("Start @ " + start.ToString(TestSuite.TestSuiteTimeFormat));
//Write the Store
writer.Save(origstore, new ThreadedSqlIOParams(writeManager,threads));
//End Profiling
finish = DateTime.Now;
Console.WriteLine("Finished Loading @ " + finish.ToString(TestSuite.TestSuiteTimeFormat));
Debug.WriteLine("Finish @ " + finish.ToString(TestSuite.TestSuiteTimeFormat));
//Compute Load Rate
diff = Microsoft.VisualBasic.DateAndTime.DateDiff(Microsoft.VisualBasic.DateInterval.Second, start, finish, Microsoft.VisualBasic.FirstDayOfWeek.Monday, Microsoft.VisualBasic.FirstWeekOfYear.System);
totalTime += diff;
Console.WriteLine("Writing took " + diff + " seconds");
if (diff > 0)
{
Console.WriteLine("Write Rate was " + triples / diff + " Triples/Second");
Debug.WriteLine("Write Rate was " + triples / diff + " Triples/Second");
}
Console.WriteLine();
//Now need to clear the Database for the next Test
writeManager.Open(true);
writeManager.ExecuteNonQuery("DELETE FROM NODES");
writeManager.ExecuteNonQuery("DELETE FROM TRIPLES");
writeManager.ExecuteNonQuery("DELETE FROM GRAPH_TRIPLES");
writeManager.ExecuteNonQuery("DELETE FROM GRAPHS");
writeManager.ExecuteNonQuery("DELETE FROM NAMESPACES");
writeManager.ExecuteNonQuery("DELETE FROM NS_PREFIXES");
writeManager.ExecuteNonQuery("DELETE FROM NS_URIS");
writeManager.Close(true);
}
}
//Final Average Calculations
Console.WriteLine();
Console.WriteLine("Average Load Time was " + totalTime / runs + " seconds");
Console.WriteLine("Average Load Rate was " + totalTriples / totalTime + " Triples/Second");
#endregion
Console.WriteLine("# Tests Passed");
}
catch (System.Data.SqlClient.SqlException sqlEx)
{
reportError(output, "SQL Exception", sqlEx);
}
catch (IOException ioEx)
{
reportError(output, "IO Exception", ioEx);
}
catch (RdfParseException parseEx)
{
reportError(output, "Parsing Exception", parseEx);
}
catch (RdfException rdfEx)
{
reportError(output, "RDF Exception", rdfEx);
}
catch (Exception ex)
{
reportError(output, "Other Exception", ex);
}
output.Close();
}
public static void Main(String[] args)
{
StreamWriter output = new StreamWriter("VirtuosoTest.txt");
Console.SetOut(output);
try
{
Console.WriteLine("##Virtuoso Test Suite");
Console.WriteLine();
//Do some basic operations
Console.WriteLine("# Basic Read and Write of normal Graphs");
//Read in a Test Graph from a Turtle File
Graph g = new Graph();
g.BaseURI = new Uri("http://www.dotnetrdf.org/Tests/SQLStore/");
TurtleParser ttlparser = new TurtleParser();
ttlparser.Load(g, "InferenceTest.ttl");
Console.WriteLine("Loaded the InferenceTest.ttl file as the Test Graph");
Console.WriteLine("Attempting to save into the SQL Store");
//Get the Non Native Virtuoso Manager
NonNativeVirtuosoManager manager = new NonNativeVirtuosoManager("localhost", 1111, "dotnetrdf_experimental", "dba", "20sQl09");
//Save to a Store using SqlWriter
SqlWriter sqlwriter = new SqlWriter(manager);
sqlwriter.Save(g, false);
Console.WriteLine("Saved to the SQL Store");
//Read back from the Store using SqlReader
Graph h = new Graph();
Console.WriteLine("Trying to read the Graph back from the SQL Store");
SqlReader sqlreader = new SqlReader(manager);
h = sqlreader.Load("http://www.dotnetrdf.org/Tests/SQLStore/");
Console.WriteLine("Read from SQL Store OK");
foreach (String prefix in h.NamespaceMap.Prefixes)
{
Console.WriteLine(prefix + ": <" + h.NamespaceMap.GetNamespaceURI(prefix).ToString() + ">");
}
Console.WriteLine();
foreach (Triple t in h.Triples)
{
Console.WriteLine(t.ToString());
}
Console.WriteLine("# Test Passed");
Console.WriteLine();
//Demonstrate that the SqlGraph persists stuff to the Store
Console.WriteLine("# Advanced Read and Write with a SQLGraph");
SqlGraph s = new SqlGraph(new Uri("http://www.dotnetrdf.org/Tests/SQLStore"), manager);
Console.WriteLine("Opened the SQL Graph OK");
INode type = s.CreateURINode("rdf:type");
s.Assert(new Triple(type, type, type));
Console.WriteLine("Asserted something");
s.NamespaceMap.AddNamespace("ex", new Uri("http://www.example.org/"));
Console.WriteLine("Added a Namespace");
s.NamespaceMap.AddNamespace("ex", new Uri("http://www.example.org/changedNamespace/"));
Console.WriteLine("Changed a Namespace");
Console.WriteLine("Reopening to see if stuff gets loaded correctly");
s = new SqlGraph(new Uri("http://www.dotnetrdf.org/Tests/SQLStore"), "dotnetrdf_experimental", "sa", "20sQl08");
foreach (String prefix in s.NamespaceMap.Prefixes)
{
Console.WriteLine(prefix + ": <" + s.NamespaceMap.GetNamespaceURI(prefix).ToString() + ">");
}
Console.WriteLine();
foreach (Triple t in s.Triples)
{
Console.WriteLine(t.ToString());
}
Console.WriteLine();
s.Retract(new Triple(type, type, type));
Console.WriteLine("Retracted something");
foreach (Triple t in s.Triples)
{
Console.WriteLine(t.ToString());
}
}
catch (OpenLink.Data.Virtuoso.VirtuosoException virtEx)
{
reportError(output, "Virtuoso Exception", virtEx);
}
catch (System.Data.SqlClient.SqlException sqlEx)
{
reportError(output, "SQL Exception", sqlEx);
}
catch (IOException ioEx)
{
reportError(output, "IO Exception", ioEx);
}
catch (RDFParseException parseEx)
{
reportError(output, "Parsing Exception", parseEx);
}
catch (RDFException rdfEx)
{
reportError(output, "RDF Exception", rdfEx);
}
catch (Exception ex)
{
reportError(output, "Other Exception", ex);
}
finally
{
output.Close();
}
}