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 51 public class InterleavePattern extends BinaryPattern { 52 InterleavePattern(Pattern p1, Pattern p2) { 53 super(p1.isNullable() && p2.isNullable(), 54 combineHashCode(INTERLEAVE_HASH_CODE, p1.hashCode(), p2.hashCode()), 55 p1, 56 p2); 57 } 58 @Override 59 Pattern expand(SchemaPatternBuilder b) { 60 Pattern ep1 = p1.expand(b); 61 Pattern ep2 = p2.expand(b); 62 if (ep1 != p1 || ep2 != p2) 63 return b.makeInterleave(ep1, ep2); 64 else 65 return this; 66 } 67 @Override 68 void checkRestrictions(int context, DuplicateAttributeDetector dad, Alphabet alpha) 69 throws RestrictionViolationException { 70 switch (context) { 71 case START_CONTEXT: 72 throw new RestrictionViolationException("start_contains_interleave"); 73 case DATA_EXCEPT_CONTEXT: 74 throw new RestrictionViolationException("data_except_contains_interleave"); 75 case LIST_CONTEXT: 76 throw new RestrictionViolationException("list_contains_interleave"); 77 } 78 if (context == ELEMENT_REPEAT_CONTEXT) 79 context = ELEMENT_REPEAT_INTERLEAVE_CONTEXT; 80 Alphabet a1; 81 if (alpha != null && alpha.isEmpty()) 82 a1 = alpha; 83 else 84 a1 = new Alphabet(); 85 p1.checkRestrictions(context, dad, a1); 86 if (a1.isEmpty()) 87 p2.checkRestrictions(context, dad, a1); 88 else { 89 Alphabet a2 = new Alphabet(); 90 p2.checkRestrictions(context, dad, a2); 91 a1.checkOverlap(a2); 92 if (alpha != null) { 93 if (alpha != a1) 94 alpha.addAlphabet(a1); 95 alpha.addAlphabet(a2); 96 } 97 } 98 if (context != LIST_CONTEXT 99 && !contentTypeGroupable(p1.getContentType(), p2.getContentType())) 100 throw new RestrictionViolationException("interleave_string"); 101 if (p1.getContentType() == MIXED_CONTENT_TYPE 102 && p2.getContentType() == MIXED_CONTENT_TYPE) 103 throw new RestrictionViolationException("interleave_text_overlap"); 104 } 105 106 public void accept(PatternVisitor visitor) { 107 visitor.visitInterleave(p1, p2); 108 } 109 public Object apply(PatternFunction f) { 110 return f.caseInterleave(this); 111 } 112 }