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.binary;
  47 
  48 import com.sun.xml.internal.rngom.binary.visitor.PatternFunction;
  49 import com.sun.xml.internal.rngom.binary.visitor.PatternVisitor;
  50 import org.xml.sax.SAXException;
  51 
  52 public class OneOrMorePattern extends Pattern {
  53   Pattern p;
  54 
  55   OneOrMorePattern(Pattern p) {
  56     super(p.isNullable(),
  57           p.getContentType(),
  58           combineHashCode(ONE_OR_MORE_HASH_CODE, p.hashCode()));
  59     this.p = p;
  60   }
  61 
  62     @Override
  63   Pattern expand(SchemaPatternBuilder b) {
  64     Pattern ep = p.expand(b);
  65     if (ep != p)
  66       return b.makeOneOrMore(ep);
  67     else
  68       return this;
  69   }
  70 
  71     @Override
  72   void checkRecursion(int depth) throws SAXException {
  73     p.checkRecursion(depth);
  74   }
  75 
  76     @Override
  77   void checkRestrictions(int context, DuplicateAttributeDetector dad, Alphabet alpha)
  78     throws RestrictionViolationException {
  79     switch (context) {
  80     case START_CONTEXT:
  81       throw new RestrictionViolationException("start_contains_one_or_more");
  82     case DATA_EXCEPT_CONTEXT:
  83       throw new RestrictionViolationException("data_except_contains_one_or_more");
  84     }
  85 
  86     p.checkRestrictions(context == ELEMENT_CONTEXT
  87                         ? ELEMENT_REPEAT_CONTEXT
  88                         : context,
  89                         dad,
  90                         alpha);
  91     if (context != LIST_CONTEXT
  92         && !contentTypeGroupable(p.getContentType(), p.getContentType()))
  93       throw new RestrictionViolationException("one_or_more_string");
  94   }
  95 
  96   boolean samePattern(Pattern other) {
  97     return (other instanceof OneOrMorePattern
  98             && p == ((OneOrMorePattern)other).p);
  99   }
 100 
 101   public void accept(PatternVisitor visitor) {
 102     visitor.visitOneOrMore(p);
 103   }
 104 
 105   public Object apply(PatternFunction f) {
 106     return f.caseOneOrMore(this);
 107   }
 108 
 109   Pattern getOperand() {
 110     return p;
 111   }
 112 }