/**
 * 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 jena3.graph.impl;

import jena3.graph.Node ;
import jena3.graph.NodeVisitor ;
import org.apache.jena.atlas.lib.NotImplemented ;

public class NodeURI extends NodeImpl 
{

    private final String uri ;

    /*public*/ NodeURI(String uri) { this.uri = uri ; } 
    
    /** get the URI of this node if it has one, else die horribly */
    @Override
    public boolean isURI() { return true ; }

    /** get the URI of this node if it has one, else die horribly */
    @Override
    public String getURI() { return uri ; }

    @Override
    public Object visit(NodeVisitor v) {
        throw new NotImplemented() ;    }

    @Override
    public String getNameSpace() {
        throw new NotImplemented() ;
    }

    @Override
    public String getLocalName() {
        throw new NotImplemented() ;
    }

    @Override
    public boolean sameValueAs(Node n) {
        return equals(n) ;
    }

    @Override
    public String toString() {
        return "<"+uri+">" ;
    }

    @Override
    public int hashCode() {
        final int prime = 31 ;
        int result = 1 ;
        result = prime * result + ((uri == null) ? 0 : uri.hashCode()) ;
        return result ;
    }

    @Override
    public boolean equals(Object obj) {
        if ( this == obj )
            return true ;
        if ( obj == null )
            return false ;
        if ( !(obj instanceof NodeURI) )
            return false ;
        NodeURI other = (NodeURI)obj ;
        if ( uri == null ) {
            if ( other.uri != null )
                return false ;
        } else if ( !uri.equals(other.uri) )
            return false ;
        return true ;
    }

}