jdk8-mips64-public/jaxws: src/share/jaxws_classes/com/sun/xml/internal/rngom/nc/OverlapDetector.java@e530533619ec

     1 /*

     2  * Copyright (c) 2005, 2010, 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  * Copyright (C) 2004-2011

    27  *

    28  * Permission is hereby granted, free of charge, to any person obtaining a copy

    29  * of this software and associated documentation files (the "Software"), to deal

    30  * in the Software without restriction, including without limitation the rights

    31  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell

    32  * copies of the Software, and to permit persons to whom the Software is

    33  * furnished to do so, subject to the following conditions:

    34  *

    35  * The above copyright notice and this permission notice shall be included in

    36  * all copies or substantial portions of the Software.

    37  *

    38  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR

    39  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

    40  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE

    41  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER

    42  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,

    43  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN

    44  * THE SOFTWARE.

    45  */

    46 package com.sun.xml.internal.rngom.nc;

    48 import javax.xml.namespace.QName;

    50 class OverlapDetector implements NameClassVisitor<Void> {

    51     private NameClass nc1;

    52     private NameClass nc2;

    53     private boolean overlaps = false;

    55     static final String IMPOSSIBLE = "\u0000";

    57     private OverlapDetector(NameClass nc1, NameClass nc2) {

    58         this.nc1 = nc1;

    59         this.nc2 = nc2;

    60         nc1.accept(this);

    61         nc2.accept(this);

    62     }

    64     private void probe(QName name) {

    65         if (nc1.contains(name) && nc2.contains(name))

    66             overlaps = true;

    67     }

    69     public Void visitChoice(NameClass nc1, NameClass nc2) {

    70         nc1.accept(this);

    71         nc2.accept(this);

    72         return null;

    73     }

    75     public Void visitNsName(String ns) {

    76         probe(new QName(ns, IMPOSSIBLE));

    77         return null;

    78     }

    80     public Void visitNsNameExcept(String ns, NameClass ex) {

    81         probe(new QName(ns, IMPOSSIBLE));

    82         ex.accept(this);

    83         return null;

    84     }

    86     public Void visitAnyName() {

    87         probe(new QName(IMPOSSIBLE, IMPOSSIBLE));

    88         return null;

    89     }

    91     public Void visitAnyNameExcept(NameClass ex) {

    92         probe(new QName(IMPOSSIBLE, IMPOSSIBLE));

    93         ex.accept(this);

    94         return null;

    95     }

    97     public Void visitName(QName name) {

    98         probe(name);

    99         return null;

   100     }

   102     public Void visitNull() {

   103         return null;

   104     }

   106     static boolean overlap(NameClass nc1, NameClass nc2) {

   107         if (nc2 instanceof SimpleNameClass) {

   108             SimpleNameClass snc = (SimpleNameClass) nc2;

   109             return nc1.contains(snc.name);

   110         }

   111         if (nc1 instanceof SimpleNameClass) {

   112             SimpleNameClass snc = (SimpleNameClass) nc1;

   113             return nc2.contains(snc.name);

   114         }

   115         return new OverlapDetector(nc1, nc2).overlaps;

   116     }

   117 }

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