/*
* 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.sparql.serializer;
import java.util.Map ;
import org.openjena.atlas.io.IndentedWriter ;
import com.hp.hpl.jena.sparql.core.Prologue ;
import com.hp.hpl.jena.sparql.util.FmtUtils ;
import com.hp.hpl.jena.sparql.util.PrefixMapping2 ;
public class PrologueSerializer
{
public static void output(IndentedWriter out, Prologue prologue)
{
printBase(prologue, out) ;
printPrefixes(prologue, out) ;
}
private static void printBase(Prologue prologue, IndentedWriter out)
{
if ( prologue.getBaseURI() != null && prologue.explicitlySetBaseURI() )
{
out.print("BASE ") ;
out.print("<"+prologue.getBaseURI()+">") ;
out.newline() ;
}
}
public static void printPrefixes(Prologue prologue, IndentedWriter out)
{
if ( prologue.getPrefixMapping() == null )
return ;
Map<String, String> pmap = null ;
if ( prologue.getPrefixMapping() instanceof PrefixMapping2 )
{
PrefixMapping2 pm2 = (PrefixMapping2)prologue.getPrefixMapping() ;
pmap = pm2.getNsPrefixMap(false) ;
}
else
{
Map<String, String> _pmap = prologue.getPrefixMapping().getNsPrefixMap() ;
pmap = _pmap ;
}
if ( pmap.size() > 0 )
{
//boolean first = true ;
for (String k : pmap.keySet())
{
String v = pmap.get(k) ;
out.print("PREFIX ") ;
out.print(k) ;
out.print(':') ;
out.print(' ', 4-k.length()) ;
// Include at least one space
out.print(' ') ;
out.print(FmtUtils.stringForURI(v)) ;
out.newline() ;
}
}
}
}