How to use

getNsURIPrefix

method

in

com.hp.hpl.jena.shared.PrefixMapping

/** @see com.hp.hpl.jena.shared.PrefixMapping#getNsURIPrefix(java.lang.String) */
@Override
public String getNsURIPrefix(String uri)
{
  String s = pmapLocal.getNsURIPrefix(uri) ;
  if ( s != null )
    return s ;
  if ( pmapGlobal == null )
    return null ;
  if ( pmapGlobal != null )
    return pmapGlobal.getNsURIPrefix(uri) ;
  return null ;
}

@Override
public String getNsURIPrefix(String uri) {
  return this.prefixes.getNsURIPrefix(uri);
}

/** @see com.hp.hpl.jena.shared.PrefixMapping#getNsURIPrefix(java.lang.String) */
public String getNsURIPrefix(String uri)
{
  String s = pmapLocal.getNsURIPrefix(uri) ;
  if ( s != null )
    return s ;
  if ( pmapGlobal == null )
    return null ;
  if ( pmapGlobal != null )
    return pmapGlobal.getNsURIPrefix(uri) ;
  return null ;
}

@Override
public String getNsURIPrefix( String uri )
{ return getPrefixMapping().getNsURIPrefix( uri ); }

@Override public String getNsURIPrefix( String uri )
  {
  String s = getBaseMapping().getNsURIPrefix( uri );
  if (s == null)
    {
    List<Graph> graphs = poly.getSubGraphs();
    for (int i = 0; i < graphs.size(); i += 1)
      {
      String ss = graphs.get(i).getPrefixMapping().getNsURIPrefix( uri );
      if (ss != null && ss.length() > 0) return ss;
      }
    }
  return s;
  }
  

/**
  Encode the URI string <code>any</code> into a "short"name.
  If any can be expressed as a legal shortname pre_local where
  pre is the prefix for any's namespace and local is the
  local name of any, return that. Otherwise, if the local
  name isn't a legal shortname but a prefix exists, return
  pre_thatPrefix_localnameEncoded. Otherwise, return
  uri_theEntireURIencoded.
*/
public static String encode( PrefixMapping pm, String any ) {
  int cut = Util.splitNamespace( any );
  String ns = any.substring( 0, cut );
  String ln = any.substring( cut );
  String prefix = pm.getNsURIPrefix( ns );
  return
    prefix == null ? "unknown_" + encodeLightly(true, any) 
    : EldaNameUtils.isLegalShortname( ln ) ? prefix + "_" + ln
    : "pre_" + prefix + "_" + encodeLightly(false, ln)
    ;
}

protected String substitutedAttribute( String s ) 
  {
  String substituted = Util.substituteStandardEntities( s );
  if (!showDoctypeDeclaration.booleanValue()) 
    return attributeQuoted( substituted );
  else
    {
    int split = Util.splitNamespace( substituted );
    String namespace = substituted.substring(  0, split );
    String prefix = modelPrefixMapping.getNsURIPrefix( namespace );
    return prefix == null || isPredefinedEntityName( prefix )
      ? attributeQuoted( substituted )
      : attributeQuoted( "&" + strForPrefix(prefix) + ";" + substituted.substring( split ) )
      ;
    }
  }

String ln = EldaNameUtils.localName(u);
String ns = EldaNameUtils.nameSpace(u);
String prefix = pm.getNsURIPrefix(ns);
if (prefix == null) {
  result.put( u, Transcoding.encode( pm, u ) );

@Test public void prefix4()
{
  String uri = "http://example/" ;
  PrefixMapping pmap = new PrefixMappingSDB(defaultPrefixURI, sdb) ;
  pmap.setNsPrefix("ex", uri) ;
  
  assertEquals("ex", pmap.getNsURIPrefix("http://example/")) ;
}