1 /*
   2  * Copyright (c) 2005, 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  * 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.nc.NameClass;
  49 import com.sun.xml.internal.org.relaxng.datatype.Datatype;
  50 import org.xml.sax.Locator;
  51 
  52 public class SchemaPatternBuilder extends PatternBuilder {
  53   private boolean idTypes;
  54   private final Pattern unexpandedNotAllowed =
  55         new NotAllowedPattern() {
  56         @Override
  57         boolean isNotAllowed() {
  58             return false;
  59         }
  60         @Override
  61         Pattern expand(SchemaPatternBuilder b) {
  62             return b.makeNotAllowed();
  63         }
  64     };
  65 
  66   private final TextPattern text = new TextPattern();
  67   private final PatternInterner schemaInterner = new PatternInterner();
  68 
  69   public SchemaPatternBuilder() { }
  70 
  71   public boolean hasIdTypes() {
  72     return idTypes;
  73   }
  74 
  75   Pattern makeElement(NameClass nameClass, Pattern content, Locator loc) {
  76     Pattern p = new ElementPattern(nameClass, content, loc);
  77     return schemaInterner.intern(p);
  78   }
  79 
  80   Pattern makeAttribute(NameClass nameClass, Pattern value, Locator loc) {
  81     if (value == notAllowed)
  82       return value;
  83     Pattern p = new AttributePattern(nameClass, value, loc);
  84     return schemaInterner.intern(p);
  85   }
  86 
  87   Pattern makeData(Datatype dt) {
  88     noteDatatype(dt);
  89     Pattern p = new DataPattern(dt);
  90     return schemaInterner.intern(p);
  91   }
  92 
  93   Pattern makeDataExcept(Datatype dt, Pattern except, Locator loc) {
  94     noteDatatype(dt);
  95     Pattern p = new DataExceptPattern(dt, except, loc);
  96     return schemaInterner.intern(p);
  97   }
  98 
  99   Pattern makeValue(Datatype dt, Object obj) {
 100     noteDatatype(dt);
 101     Pattern p = new ValuePattern(dt, obj);
 102     return schemaInterner.intern(p);
 103   }
 104 
 105   Pattern makeText() {
 106     return text;
 107   }
 108 
 109     @Override
 110   Pattern makeOneOrMore(Pattern p) {
 111     if (p == text)
 112       return p;
 113     return super.makeOneOrMore(p);
 114   }
 115 
 116   Pattern makeUnexpandedNotAllowed() {
 117     return unexpandedNotAllowed;
 118   }
 119 
 120   Pattern makeError() {
 121     Pattern p = new ErrorPattern();
 122     return schemaInterner.intern(p);
 123   }
 124 
 125     @Override
 126   Pattern makeChoice(Pattern p1, Pattern p2) {
 127     if (p1 == notAllowed || p1 == p2)
 128       return p2;
 129     if (p2 == notAllowed)
 130       return p1;
 131     return super.makeChoice(p1, p2);
 132   }
 133 
 134   Pattern makeList(Pattern p, Locator loc) {
 135     if (p == notAllowed)
 136       return p;
 137     Pattern p1 = new ListPattern(p, loc);
 138     return schemaInterner.intern(p1);
 139   }
 140 
 141   Pattern makeMixed(Pattern p) {
 142     return makeInterleave(text, p);
 143   }
 144 
 145   private void noteDatatype(Datatype dt) {
 146     if (dt.getIdType() != Datatype.ID_TYPE_NULL)
 147       idTypes = true;
 148   }
 149 }