1 /*
   2  * Copyright (c) 1997, 2015, 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.tools.internal.xjc.reader.relaxng;
  27 
  28 import com.sun.tools.internal.xjc.reader.Const;
  29 import com.sun.tools.internal.xjc.reader.internalizer.AbstractReferenceFinderImpl;
  30 import com.sun.tools.internal.xjc.reader.internalizer.DOMForest;
  31 import com.sun.tools.internal.xjc.reader.internalizer.InternalizationLogic;
  32 
  33 import org.w3c.dom.Element;
  34 import org.xml.sax.Attributes;
  35 import org.xml.sax.helpers.XMLFilterImpl;
  36 
  37 /**
  38  * RELAX NG specific internalization logic.
  39  *
  40  * @author
  41  *     Kohsuke Kawaguchi (kohsuke.kawaguchi@sun.com)
  42  */
  43 public class RELAXNGInternalizationLogic implements InternalizationLogic {
  44 
  45     /**
  46      * This filter looks for {@code <xs:import>} and {@code <xs:include>}
  47      * and parses those documents referenced by them.
  48      */
  49     private static final class ReferenceFinder extends AbstractReferenceFinderImpl {
  50         ReferenceFinder( DOMForest parent ) {
  51             super(parent);
  52         }
  53 
  54         protected String findExternalResource( String nsURI, String localName, Attributes atts) {
  55             if( Const.RELAXNG_URI.equals(nsURI)
  56             && ("include".equals(localName) || "externalRef".equals(localName) ) )
  57                 return atts.getValue("href");
  58             else
  59                 return null;
  60         }
  61     };
  62 
  63     public XMLFilterImpl createExternalReferenceFinder(DOMForest parent) {
  64         return new ReferenceFinder(parent);
  65     }
  66 
  67     public boolean checkIfValidTargetNode(DOMForest parent, Element bindings, Element target) {
  68         return Const.RELAXNG_URI.equals(target.getNamespaceURI());
  69     }
  70 
  71     public Element refineTarget(Element target) {
  72         // no refinement necessary
  73         return target;
  74     }
  75 
  76 }