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 package com.sun.xml.internal.rngom.binary; 27 28 import com.sun.xml.internal.rngom.nc.NameClass; 29 import org.relaxng.datatype.Datatype; 30 import org.xml.sax.Locator; 31 32 public class SchemaPatternBuilder extends PatternBuilder { 33 private boolean idTypes; 34 private final Pattern unexpandedNotAllowed = 35 new NotAllowedPattern() { 36 boolean isNotAllowed() { 37 return false; 38 } 39 Pattern expand(SchemaPatternBuilder b) { 40 return b.makeNotAllowed(); 41 } 42 }; 43 44 private final TextPattern text = new TextPattern(); 45 private final PatternInterner schemaInterner = new PatternInterner(); 46 47 public SchemaPatternBuilder() { } 48 49 public boolean hasIdTypes() { 50 return idTypes; 51 } 52 53 Pattern makeElement(NameClass nameClass, Pattern content, Locator loc) { 54 Pattern p = new ElementPattern(nameClass, content, loc); 55 return schemaInterner.intern(p); 56 } 57 58 Pattern makeAttribute(NameClass nameClass, Pattern value, Locator loc) { 59 if (value == notAllowed) 60 return value; 61 Pattern p = new AttributePattern(nameClass, value, loc); 62 return schemaInterner.intern(p); 63 } 64 65 Pattern makeData(Datatype dt) { 66 noteDatatype(dt); 67 Pattern p = new DataPattern(dt); 68 return schemaInterner.intern(p); 69 } 70 71 Pattern makeDataExcept(Datatype dt, Pattern except, Locator loc) { 72 noteDatatype(dt); 73 Pattern p = new DataExceptPattern(dt, except, loc); 74 return schemaInterner.intern(p); 75 } 76 77 Pattern makeValue(Datatype dt, Object obj) { 78 noteDatatype(dt); 79 Pattern p = new ValuePattern(dt, obj); 80 return schemaInterner.intern(p); 81 } 82 83 Pattern makeText() { 84 return text; 85 } 86 87 Pattern makeOneOrMore(Pattern p) { 88 if (p == text) 89 return p; 90 return super.makeOneOrMore(p); 91 } 92 93 Pattern makeUnexpandedNotAllowed() { 94 return unexpandedNotAllowed; 95 } 96 97 Pattern makeError() { 98 Pattern p = new ErrorPattern(); 99 return schemaInterner.intern(p); 100 } 101 102 Pattern makeChoice(Pattern p1, Pattern p2) { 103 if (p1 == notAllowed || p1 == p2) 104 return p2; 105 if (p2 == notAllowed) 106 return p1; 107 return super.makeChoice(p1, p2); 108 } 109 110 Pattern makeList(Pattern p, Locator loc) { 111 if (p == notAllowed) 112 return p; 113 Pattern p1 = new ListPattern(p, loc); 114 return schemaInterner.intern(p1); 115 } 116 117 Pattern makeMixed(Pattern p) { 118 return makeInterleave(text, p); 119 } 120 121 private void noteDatatype(Datatype dt) { 122 if (dt.getIdType() != Datatype.ID_TYPE_NULL) 123 idTypes = true; 124 } 125 }