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/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 * 
 *     http://www.apache.org/licenses/LICENSE-2.0

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package org.apache.jena.playground;

import org.apache.jena.atlas.io.IndentedWriter;

import com.hp.hpl.jena.graph.Node;
import com.hp.hpl.jena.graph.NodeFactory;
import com.hp.hpl.jena.graph.Triple;
import com.hp.hpl.jena.sparql.algebra.AlgebraQuad;
import com.hp.hpl.jena.sparql.algebra.Op;
import com.hp.hpl.jena.sparql.algebra.Transform;

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// Assume we already have a StardogConnector in the variable Stardog

// Firstly need to parse our updates
SparqlUpdateCommandSet updates = new SparqlUpdateParser().ParseFromString(@"
INSERT DATA { GRAPH <http://example.org/graph> { <http://s> <http://p> <http://o } }
");

// Then we can create an update processor and execute the updates
GenericUpdateProcessor processor = new GenericUpdateProcessor(stardog);
processor.ProcessCommandSet(updates);

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// Assume we have a StardogConnector in the variable stardog
 
// Create the update
SparqlParameterizedString updateString = new SparqlParameterizedString();
updateString.CommandText = @"DELETE WHERE
{
    ?s a @type .
}";
// Set the parameter
updateString.SetUri("type", new Uri("http://example.org/myType"));

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// Assume we already have a StardogConnector in the variable Stardog
 
stardog.Update(@"
INSERT DATA { GRAPH <http://example.org/graph> { <http://s> <http://p> <http://o } }
");

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// Assume we have a StardogConnector in the variable stardog

// Create the query
SparqlParameterizedString queryString = new SparqlParameterizedString();
queryString.CommandText = @"SELECT * WHERE
{
    ?s a @type .
}";
// Set the parameter
queryString.SetUri("type", new Uri("http://example.org/myType"));

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// Assume we already have a StardogConnector in the variable stardog

// Deleting a graph simply requires the URI of the graph to delete
stardog.DeleteGraph(new Uri("http://example.org/name"));

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// Assume we already have a StardogConnector in the variable Stardog

SparqlResultSet results = stardog.Query(@"
SELECT DISTINCT ?type WHERE { [] a ?type } LIMIT 10
") as SparqlResultSet;

// Now work with the SPARQL Results as desired...

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// Assumes we already have a StardogConnector in the variable stardog

// Create the Triples we want to remove
NodeFactory factory = new NodeFactory();
List<Triple> toRemove = new List<Triple>();
toRemove.Add(new Triple(factory.CreateUriNode(new Uri("http://subject")), 
                        factory.createUriNode(new Uri("http://predicate")), 
                        factory.CreateUriNode(new Uri("http://object"))
            );
// And so forth...

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// Assuming we already have a StardogConnector in the variable Stardog

// Define a Graph that will receive our data
IGraph g = new Graph();

// Load from Stardog
stardog.LoadGraph(g, new Uri("http://example.org/name"));