1 /*
   2  * Copyright (c) 2005, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 package com.sun.xml.internal.stream;
  27 
  28 import java.io.InputStream;
  29 import javax.xml.stream.XMLEventReader;
  30 import javax.xml.stream.XMLResolver;
  31 import javax.xml.stream.XMLStreamException;
  32 import javax.xml.stream.XMLStreamReader;
  33 import com.sun.org.apache.xerces.internal.xni.XMLResourceIdentifier;
  34 import com.sun.org.apache.xerces.internal.xni.XNIException;
  35 import com.sun.org.apache.xerces.internal.xni.parser.XMLInputSource;
  36 
  37 /**
  38  *
  39  * @author  Neeraj Bajaj
  40  */
  41 public class StaxEntityResolverWrapper {
  42 
  43     XMLResolver fStaxResolver ;
  44 
  45     /** Creates a new instance of StaxEntityResolverWrapper */
  46     public StaxEntityResolverWrapper(XMLResolver resolver) {
  47         fStaxResolver = resolver ;
  48     }
  49 
  50     public void setStaxEntityResolver(XMLResolver resolver ){
  51         fStaxResolver = resolver ;
  52     }
  53 
  54     public XMLResolver getStaxEntityResolver(){
  55         return fStaxResolver ;
  56     }
  57 
  58     public StaxXMLInputSource resolveEntity(XMLResourceIdentifier resourceIdentifier)
  59     throws XNIException, java.io.IOException {
  60         Object object = null ;
  61         try{
  62             object = fStaxResolver.resolveEntity(resourceIdentifier.getPublicId(), resourceIdentifier.getLiteralSystemId(),
  63             resourceIdentifier.getBaseSystemId(), null);
  64             return getStaxInputSource(object) ;
  65         }catch(XMLStreamException streamException){
  66             throw new XNIException(streamException) ;
  67         }
  68     }
  69 
  70     StaxXMLInputSource getStaxInputSource(Object object){
  71         if(object == null) return null ;
  72 
  73         if(object  instanceof java.io.InputStream){
  74             return new StaxXMLInputSource(new XMLInputSource(null, null, null, (InputStream)object, null));
  75         }
  76         else if(object instanceof XMLStreamReader){
  77             return new StaxXMLInputSource((XMLStreamReader)object) ;
  78         }else if(object instanceof XMLEventReader){
  79             return new StaxXMLInputSource((XMLEventReader)object) ;
  80         }
  81 
  82         return null ;
  83     }
  84 }//class StaxEntityResolverWrapper