REST interface for directly-identified GSP

src/main/java/com/atomgraph/core/Application.java

@@ -30,11 +30,9 @@
 import com.atomgraph.core.mapper.BadGatewayExceptionMapper;
 import com.atomgraph.core.mapper.RiotExceptionMapper;
 import com.atomgraph.core.model.Service;
-import com.atomgraph.core.model.impl.GraphStoreImpl;
-import com.atomgraph.core.model.impl.QueriedResourceBase;
-import com.atomgraph.core.model.impl.SPARQLEndpointImpl;
 import com.atomgraph.core.riot.RDFLanguages;
 import com.atomgraph.core.riot.lang.RDFPostReaderFactory;
+import com.atomgraph.core.server.Dispatcher;
 import com.atomgraph.core.util.jena.DataManager;
 import com.atomgraph.core.util.jena.DataManagerImpl;
 import com.atomgraph.core.vocabulary.A;
@@ -153,9 +151,7 @@ public Application(final Dataset dataset,
     @PostConstruct
     public void init()
     {
-        register(QueriedResourceBase.class); // handles all
-        register(SPARQLEndpointImpl.class); // handles /sparql queries
-        register(GraphStoreImpl.class); // handles /service requests
+        register(Dispatcher.class); // handles all
 
         register(new ModelProvider());
         register(new DatasetProvider());

src/main/java/com/atomgraph/core/model/DirectGraphStore.java

@@ -0,0 +1,68 @@
+/*
+ * Copyright 2026 martynas.
+ *
+ * Licensed 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
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.atomgraph.core.model;
+
+import jakarta.ws.rs.DELETE;
+import jakarta.ws.rs.GET;
+import jakarta.ws.rs.POST;
+import jakarta.ws.rs.PUT;
+import jakarta.ws.rs.core.Response;
+import org.apache.jena.rdf.model.Model;
+
+/**
+ * Directly-identified SPARQL 1.1 Graph Store HTTP Protocol interface (aka Linked Data)
+ * 
+ * @author Martynas Jusevičius {@literal <[email protected]>}
+ * @see <a href="https://www.w3.org/TR/sparql11-http-rdf-update/#direct-graph-identification">SPARQL 1.1 Graph Store HTTP Protocol</a>
+ * @see <a href="https://en.wikipedia.org/wiki/Linked_data">Linked Data</a>
+*/
+public interface DirectGraphStore
+{
+    /**
+     * Handles GET query request and returns result as response
+     * 
+     * @return result response
+     * @see <a href="http://www.w3.org/TR/sparql11-http-rdf-update/#http-get">5.2 HTTP GET</a>
+     */
+    @GET Response get();
+
+    /**
+     * Handles POST query request and returns result as response
+     * 
+     * @param model RDF payload model
+     * @return result response
+     * @see <a href="http://www.w3.org/TR/sparql11-http-rdf-update/#http-post">5.5 HTTP POST</a>
+     */
+    @POST Response post(Model model);
+
+    /**
+     * Handles PUT query request and returns result as response
+     * 
+     * @param model RDF payload model
+     * @return result response
+     * @see <a href="http://www.w3.org/TR/sparql11-http-rdf-update/#http-put">5.3 HTTP PUT</a>
+     */
+    @PUT Response put(Model model);
+
+    /**
+     * Handles DELETE query request and returns result as response
+     * 
+     * @return result response
+     * @see <a href="http://www.w3.org/TR/sparql11-http-rdf-update/#http-delete">5.4 HTTP DELETE</a>
+     */
+    @DELETE Response delete();
+
+}

src/main/java/com/atomgraph/core/model/GraphStore.java

@@ -22,10 +22,10 @@
 import jakarta.ws.rs.core.Response;
 
 /**
- * Generic SPARQL 1.1 Graph Store HTTP Protocol interface
+ * Indirectly-identified SPARQL 1.1 Graph Store HTTP Protocol interface
  * 
  * @author Martynas Jusevičius {@literal <[email protected]>}
- * @see <a href="http://www.w3.org/TR/sparql11-http-rdf-update/">SPARQL 1.1 Graph Store HTTP Protocol</a>
+ * @see <a href="https://www.w3.org/TR/sparql11-http-rdf-update/#indirect-graph-identification">SPARQL 1.1 Graph Store HTTP Protocol</a>
  */
 public interface GraphStore
 {

src/main/java/com/atomgraph/core/model/impl/DirectGraphStoreImpl.java

@@ -0,0 +1,144 @@
+/*
+ * Copyright 2026 martynas.
+ *
+ * Licensed 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
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.atomgraph.core.model.impl;
+
+import com.atomgraph.core.MediaTypes;
+import com.atomgraph.core.model.DatasetAccessor;
+import com.atomgraph.core.model.DirectGraphStore;
+import com.atomgraph.core.model.Service;
+import jakarta.inject.Inject;
+import jakarta.ws.rs.DELETE;
+import jakarta.ws.rs.GET;
+import jakarta.ws.rs.POST;
+import jakarta.ws.rs.PUT;
+import jakarta.ws.rs.core.Context;
+import jakarta.ws.rs.core.Request;
+import jakarta.ws.rs.core.Response;
+import jakarta.ws.rs.core.UriInfo;
+import java.net.URI;
+import org.apache.jena.rdf.model.Model;
+
+/**
+ * Directly-identified SPARQL Graph Stores implementation.
+ * 
+ * @author Martynas Jusevičius {@literal <[email protected]>}
+ * @see <a href="https://www.w3.org/TR/sparql11-http-rdf-update/#indirect-graph-identification">SPARQL 1.1 Graph Store HTTP Protocol</a>
+ * @see com.atomgraph.core.model.GraphStore
+ */
+public class DirectGraphStoreImpl extends GraphStoreBase implements DirectGraphStore
+{
+
+    private final UriInfo uriInfo;
+
+    /**
+     * Constructs Graph Store from request metadata.
+     * 
+     * @param request request
+     * @param service SPARQL service
+     * @param mediaTypes supported media types
+     * @param uriInfo URI information
+     */
+    @Inject
+    public DirectGraphStoreImpl(@Context Request request, Service service, MediaTypes mediaTypes, @Context UriInfo uriInfo)
+    {
+        this(request, service.getDatasetAccessor(), mediaTypes, uriInfo);
+    }
+
+    /**
+     * Constructs Graph Store from request metadata and dataset accessor.
+     *
+     * @param request request
+     * @param accessor dataset accessor
+     * @param mediaTypes supported media types
+     * @param uriInfo URI information
+     */
+    public DirectGraphStoreImpl(Request request, DatasetAccessor accessor, MediaTypes mediaTypes, @Context UriInfo uriInfo)
+    {
+        super(request, accessor, mediaTypes);
+        this.uriInfo = uriInfo;
+    }
+
+    /**
+     * Implements <code>GET</code> method of SPARQL Graph Store Protocol.
+     * 
+     * @return response
+     */
+    @GET
+    @Override
+    public Response get()
+    {
+        return super.get(false, getURI());
+    }
+
+    /**
+     * Implements <code>POST</code> method of SPARQL Graph Store Protocol.
+     * 
+     * @param model RDF request body
+     * @return response
+     */
+    @POST
+    @Override
+    public Response post(Model model)
+    {
+        return super.post(model, false, getURI());
+    }
+
+    /**
+     * Implements <code>PUT</code> method of SPARQL Graph Store Protocol.
+     * 
+     * @param model RDF request body
+     * @return response
+     */    
+    @PUT
+    @Override
+    public Response put(Model model)
+    {
+        return super.put(model, false, getURI());
+    }
+
+    /**
+     * Implements <code>DELETE</code> method of SPARQL Graph Store Protocol.
+     * 
+     * @return response
+     */
+    @DELETE
+    @Override
+    public Response delete()
+    {
+        return super.delete(false, getURI());
+    }
+
+    /**
+     * Returns the graph URI.
+     *
+     * @return the graph URI
+     */
+    public final URI getURI()
+    {
+        return getUriInfo().getAbsolutePath();
+    }
+
+    /**
+     * Returns the URI information.
+     *
+     * @return URI information
+     */
+    public final UriInfo getUriInfo()
+    {
+        return uriInfo;
+    }
+
+}