[GitHub] [jena] kinow commented on a change in pull request #866: JENA-1998: Imports closure machinery

[GitBox <gi...@apache.org>]

kinow commented on a change in pull request #866:
URL: https://github.com/apache/jena/pull/866#discussion_r523867400



##########
File path: jena-shacl/src/main/java/org/apache/jena/shacl/Imports.java
##########
@@ -0,0 +1,152 @@
+/*
+ * 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
+ *
+ * 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 org.apache.jena.shacl;
+
+import static org.apache.jena.atlas.iterator.Iter.iter;
+import static org.apache.jena.sparql.graph.NodeConst.nodeOwlImports;
+import static org.apache.jena.sparql.graph.NodeConst.nodeOwlOntology;
+import static org.apache.jena.sparql.graph.NodeConst.nodeRDFType;
+
+import java.util.Collections;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Set;
+import java.util.stream.Collectors;
+
+import org.apache.jena.atlas.lib.Pair;
+import org.apache.jena.graph.Graph;
+import org.apache.jena.graph.GraphUtil;
+import org.apache.jena.graph.Node;
+import org.apache.jena.riot.RDFDataMgr;
+import org.apache.jena.riot.other.G;
+import org.apache.jena.riot.system.IRIResolver;
+import org.apache.jena.sparql.graph.GraphFactory;
+
+/**
+ * Import processing.
+ * <p>
+ * Imports are triggered by a base (a single triple "? rdf:type owl:Ontology")
+ * and imports (triples "base owl:Imports URI").
+ * <p>
+ * If there other "? owl:imports ?" triples, they are ignored.
+ */
+public class Imports {
+    private Imports() {}
+
+    /**
+     * Load a graph and process it's owl:imports to create a single graph.

Review comment:
       s/it's/its

##########
File path: jena-shacl/src/main/java/org/apache/jena/shacl/Imports.java
##########
@@ -0,0 +1,152 @@
+/*
+ * 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
+ *
+ * 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 org.apache.jena.shacl;
+
+import static org.apache.jena.atlas.iterator.Iter.iter;
+import static org.apache.jena.sparql.graph.NodeConst.nodeOwlImports;
+import static org.apache.jena.sparql.graph.NodeConst.nodeOwlOntology;
+import static org.apache.jena.sparql.graph.NodeConst.nodeRDFType;
+
+import java.util.Collections;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Set;
+import java.util.stream.Collectors;
+
+import org.apache.jena.atlas.lib.Pair;
+import org.apache.jena.graph.Graph;
+import org.apache.jena.graph.GraphUtil;
+import org.apache.jena.graph.Node;
+import org.apache.jena.riot.RDFDataMgr;
+import org.apache.jena.riot.other.G;
+import org.apache.jena.riot.system.IRIResolver;
+import org.apache.jena.sparql.graph.GraphFactory;
+
+/**
+ * Import processing.
+ * <p>
+ * Imports are triggered by a base (a single triple "? rdf:type owl:Ontology")
+ * and imports (triples "base owl:Imports URI").
+ * <p>
+ * If there other "? owl:imports ?" triples, they are ignored.

Review comment:
       If there are other?




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