How to use

getNsPrefixMap

method

in

com.hp.hpl.jena.shared.PrefixMapping

/**
 * Return a map of all the discovered prefixes
 */
public Map<String, String> getPrefixMap() {
  return prefixMapping.getNsPrefixMap();
}

@Override
public Map<String, String> getNsPrefixMap() {
  return this.prefixes.getNsPrefixMap();
}

public Map<String, String> getNsPrefixMap(boolean includeGlobalMap)
{
  Map<String, String> m1 = pmapLocal.getNsPrefixMap() ;
  if ( pmapGlobal == null )
    return m1 ;
  if ( includeGlobalMap )
  {
    Map<String, String> m2 = pmapGlobal.getNsPrefixMap() ;
    m1.putAll(m2) ;
  }
  return m1 ;
}

public Map<String, String> getNsPrefixMap(boolean includeGlobalMap)
{
  Map<String, String> m1 = pmapLocal.getNsPrefixMap() ;
  if ( pmapGlobal == null )
    return m1 ;
  if ( includeGlobalMap )
  {
    Map<String, String> m2 = pmapGlobal.getNsPrefixMap() ;
    m1.putAll(m2) ;
  }
  return m1 ;
}

/**
  Add the bindings of other to our own. We defer to the general case 
  because we have to ensure the URIs are checked.
  
  @param other the PrefixMapping whose bindings we are to add to this.
*/
@Override public PrefixMapping setNsPrefixes( PrefixMapping other )
  { return setNsPrefixes( other.getNsPrefixMap() ); }
  

/**
  Add the bindings of other to our own. We defer to the general case 
  because we have to ensure the URIs are checked.
  
  @param other the PrefixMapping whose bindings we are to add to this.
*/
@Override
public PrefixMapping setNsPrefixes( PrefixMapping other )
  { return setNsPrefixes( other.getNsPrefixMap() ); }

  private static String namespacesDocument(PrefixMapping pm) {
    StringBuilder sb = new StringBuilder();
    sb.append("<namespaces>\n");
    for (Map.Entry<String, String> e : pm.getNsPrefixMap().entrySet()) {
      sb.append("<namespace prefix='");
      sb.append(e.getKey());
      sb.append("'>");
      sb.append(e.getValue());
      sb.append("</namespace>\n");
    }
    sb.append("</namespaces>\n");
    return sb.toString();
  }
}

  public static int hash(Prologue prologue) {
    final int prime = 31 ;
    int x = 1 ; 
    if ( prologue.seenBaseURI )
      x = prime * x + prologue.getBaseURI().hashCode() ;
    else
      x = 1237 ;
    if ( prologue.prefixMap != null )
      x = prime * x + prologue.prefixMap.getNsPrefixMap().hashCode() ;
    return x ;
  }
}

@Override
public void putAll(PrefixMapping pmap) {
  putAll(pmap.getNsPrefixMap()) ;
}

@Override
public Map<String, String> getNsPrefixMap()
{ return getPrefixMapping().getNsPrefixMap(); }

  static public QNameProvider makeQNameProvider(PrefixMapping mapping) {
    QNameProvider qnames = new QNameProvider();

    Iterator<Map.Entry<String, String>> entries = mapping.getNsPrefixMap().entrySet().iterator();
    while( entries.hasNext() ) {
      Map.Entry<String, String> entry = entries.next();
      String prefix = entry.getKey();
      String uri = entry.getValue();

      qnames.setMapping( prefix, uri );
    }

    return qnames;
  }
}

@Override public Map<String, String> getNsPrefixMap()
  { 
  Map<String, String> result = CollectionFactory.createHashedMap();
  List<Graph> graphs = poly.getSubGraphs();
  for (int i = graphs.size(); i > 0;)
    result.putAll( graphs.get( --i ).getPrefixMapping().getNsPrefixMap() );
  result.remove( "" );
  result.putAll( getBaseMapping().getNsPrefixMap() );
  return result; 
  }
  

public PrefixMapping withDefaultMappings(PrefixMapping map)
{
  Iterator<Map.Entry<String, String>> it = map.getNsPrefixMap().entrySet().iterator();
  while (it.hasNext())
    {
    Map.Entry<String, String> e = it.next();
    String prefix = e.getKey();
    String uri = e.getValue();
    if (getNsPrefixURI( prefix ) == null && getNsURIPrefix( uri ) == null)
      setNsPrefix( prefix, uri );
    }
  return this;
}

@Override
public PrefixMapping withDefaultMappings(PrefixMapping map)
{
  Iterator<Map.Entry<String, String>> it = map.getNsPrefixMap().entrySet().iterator();
  while (it.hasNext())
    {
    Map.Entry<String, String> e = it.next();
    String prefix = e.getKey();
    String uri = e.getValue();
    if (getNsPrefixURI( prefix ) == null && getNsURIPrefix( uri ) == null)
      setNsPrefix( prefix, uri );
    }
  return this;
}

public void visitPrologue(Prologue query)
{
  if ( query.explicitlySetBaseURI() )
    x ^= query.getBaseURI().hashCode() ;
  x ^= query.getPrefixMapping().getNsPrefixMap().hashCode() ;
}

/**
 * @param prefix
 *            A prefix to be used in RDF/XML.
 * @param uri
 *            The uri associated with this prefix.
 * @return The full map of prefixes after the addition of <code>prefix</code> and <code>uri</code>.
 */
public Map<String, String> setNSPrefix(final String prefix, final String uri) {
  if ((this.model != null) && (prefix != null) && (uri != null) && (!prefix.equals("")) && (!uri.equals(""))) {
    final Map<?, ?> map = this.model.setNsPrefix(prefix, uri).getNsPrefixMap();
    return BackEndJenaHelper.convertNSMap(map);
  }
  return this.getNSPrefixes();
}

public static Prologue create(String base, PrefixMapping pmapping)
{
  PrefixMap pmap = null ;
  if ( pmapping != null )
  {
    pmap = new PrefixMap() ;
    Map<String, String> x =  pmapping.getNsPrefixMap() ;
    for ( Entry<String, String> e : x.entrySet() )
      pmap.add(e.getKey(), e.getValue()) ;
  }
  IRIResolver resolver = null ;
  if ( base != null )
    resolver = IRIResolver.create(base) ;
  return new Prologue(pmap, resolver) ;
}
 

static public PrefixMapping used(Op op, PrefixMapping pmap)
{
  PrefixMapping pmap2 = new PrefixMappingImpl() ;
  PrefixFinder finder = new PrefixFinder(pmap2, pmap.getNsPrefixMap()) ;
  OpWalker.walk(op, finder) ;
  return pmap2 ;
}

static public PrefixMapping used(Op op, PrefixMapping pmap)
{
  PrefixMapping pmap2 = new PrefixMappingImpl() ;
  PrefixFinder finder = new PrefixFinder(pmap2, pmap.getNsPrefixMap()) ;
  OpWalker.walk(op, finder) ;
  return pmap2 ;
}
 

@Test public void testWithNoMappings() {
  Model m = ModelFactory.createDefaultModel();
  Resource r = ModelTestBase.resource( m, "null" );
  PrefixMapping pm = ExtractPrefixMapping.from( r );
  assertEquals( 0, pm.getNsPrefixMap().size() );
}