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
26package com.sun.tools.internal.xjc.reader.relaxng;
27
28import com.sun.tools.internal.xjc.reader.Const;
29import com.sun.tools.internal.xjc.reader.internalizer.AbstractReferenceFinderImpl;
30import com.sun.tools.internal.xjc.reader.internalizer.DOMForest;
31import com.sun.tools.internal.xjc.reader.internalizer.InternalizationLogic;
32
33import org.w3c.dom.Element;
34import org.xml.sax.Attributes;
35import org.xml.sax.helpers.XMLFilterImpl;
36
37/**
38 * RELAX NG specific internalization logic.
39 *
40 * @author
41 *     Kohsuke Kawaguchi (kohsuke.kawaguchi@sun.com)
42 */
43public 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}
77