/*
* 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 com.hp.hpl.jena.sdb.layout1;
import com.hp.hpl.jena.graph.Node ;
import com.hp.hpl.jena.graph.NodeFactory ;
import com.hp.hpl.jena.rdf.model.AnonId ;
import com.hp.hpl.jena.shared.PrefixMapping ;
import com.hp.hpl.jena.shared.impl.PrefixMappingImpl ;
import com.hp.hpl.jena.sparql.sse.SSE ;
import com.hp.hpl.jena.sparql.util.FmtUtils ;
public class CodecSimple implements EncoderDecoder
{
private PrefixMapping prefixMapping ;
public CodecSimple() { prefixMapping = new PrefixMappingImpl() ; }
public CodecSimple(PrefixMapping pMap) { prefixMapping = pMap ; }
// Does not need to make the string SQL-safe
@Override
public String encode(Node node)
{
if ( node.isBlank() )
return "_:"+node.getBlankNodeId().getLabelString() ;
String s = FmtUtils.stringForNode(node, prefixMapping) ;
return s ;
}
@Override
public Node decode(String s)
{
if ( s.startsWith("Double"))
System.err.println(s) ;
if ( s.startsWith("_:") )
return NodeFactory.createAnon(new AnonId(s.substring(2))) ;
return stringToNode(s, prefixMapping) ;
}
// ParserUtils??
// -> expr
// -> GraphTerm
// -> ??
static Node stringToNode(String string, PrefixMapping pmap)
{
return SSE.parseNode(string, pmap) ;
}
}