/*
 * 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
 *
 *   https://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.
 *
 *   SPDX-License-Identifier: Apache-2.0
 */

package org.apache.jena.enhanced;
import org.apache.jena.graph.*;
import org.apache.jena.rdf.model.RDFNode;
import org.apache.jena.util.iterator.*;

public class TestModelImpl extends EnhGraph implements TestModel {
    
    /** Creates a new instance of TestModelImpl */
    public TestModelImpl(Graph g, Personality<RDFNode> p) {
        super(g,p);
    }
    private Triple aTriple() 
        {
        ClosableIterator<Triple> it = null;
        try 
            {
            it = graph.find( null, null, null );
            return it.hasNext() ? it.next() : null;
            }
        finally 
            { if (it != null) it.close(); }
        }
        
    @Override
    public TestObject anObject() {
        return getNodeAs(aTriple().getObject(),TestObject.class);
    }
    
    @Override
    public TestProperty aProperty() {
        return getNodeAs(aTriple().getPredicate(),TestProperty.class);
    }
    
    @Override
    public TestSubject aSubject() {
        return getNodeAs(aTriple().getSubject(),TestSubject.class);
    }
    
}
