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src/java.xml/share/classes/com/sun/org/apache/xerces/internal/impl/xs/SubstitutionGroupHandler.java

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   1 /*
   2  * Copyright (c) 2015, 2017, Oracle and/or its affiliates. All rights reserved.
   3  */
   4 /*
   5  * Licensed to the Apache Software Foundation (ASF) under one or more
   6  * contributor license agreements.  See the NOTICE file distributed with
   7  * this work for additional information regarding copyright ownership.
   8  * The ASF licenses this file to You under the Apache License, Version 2.0
   9  * (the "License"); you may not use this file except in compliance with
  10  * the License.  You may obtain a copy of the License at
  11  *
  12  *      http://www.apache.org/licenses/LICENSE-2.0
  13  *
  14  * Unless required by applicable law or agreed to in writing, software
  15  * distributed under the License is distributed on an "AS IS" BASIS,
  16  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  17  * See the License for the specific language governing permissions and
  18  * limitations under the License.
  19  */
  20 
  21 package com.sun.org.apache.xerces.internal.impl.xs;
  22 
  23 import com.sun.org.apache.xerces.internal.xni.QName;
  24 import com.sun.org.apache.xerces.internal.xs.XSConstants;
  25 import com.sun.org.apache.xerces.internal.xs.XSElementDeclaration;
  26 import com.sun.org.apache.xerces.internal.xs.XSObjectList;
  27 import com.sun.org.apache.xerces.internal.xs.XSSimpleTypeDefinition;
  28 import com.sun.org.apache.xerces.internal.xs.XSTypeDefinition;
  29 import java.util.ArrayList;
  30 import java.util.HashMap;
  31 import java.util.List;
  32 import java.util.Map;

  33 
  34 /**
  35  * To store and validate information about substitutionGroup
  36  *
  37  * @xerces.internal
  38  *
  39  * @author Sandy Gao, IBM
  40  *
  41  * @LastModified: Nov 2017
  42  */
  43 public class SubstitutionGroupHandler {
  44 
  45     private static final XSElementDecl[] EMPTY_GROUP = new XSElementDecl[0];
  46 
  47     // global element declaration resolver
  48     private final XSElementDeclHelper fXSElementDeclHelper;
  49 
  50     /**
  51      * Default constructor
  52      */
  53     public SubstitutionGroupHandler(XSElementDeclHelper elementDeclHelper) {
  54         fXSElementDeclHelper = elementDeclHelper;
  55     }
  56 
  57     // 3.9.4 Element Sequence Locally Valid (Particle) 2.3.3
  58     // check whether one element decl matches an element with the given qname
  59     public XSElementDecl getMatchingElemDecl(QName element, XSElementDecl exemplar) {
  60         if (element.localpart == exemplar.fName &&
  61             element.uri == exemplar.fTargetNamespace) {
  62             return exemplar;
  63         }
  64 
  65         // if the exemplar is not a global element decl, then it's not possible
  66         // to be substituted by another element.
  67         if (exemplar.fScope != XSConstants.SCOPE_GLOBAL) {
  68             return null;
  69         }
  70 
  71         // if the decl blocks substitution, return false
  72         if ((exemplar.fBlock & XSConstants.DERIVATION_SUBSTITUTION) != 0) {
  73             return null;
  74         }
  75 
  76         // get the decl for the element
  77         XSElementDecl eDecl = fXSElementDeclHelper.getGlobalElementDecl(element);
  78         if (eDecl == null) {
  79             return null;
  80         }
  81 


   1 /*
   2  * Copyright (c) 2015, 2019, Oracle and/or its affiliates. All rights reserved.
   3  */
   4 /*
   5  * Licensed to the Apache Software Foundation (ASF) under one or more
   6  * contributor license agreements.  See the NOTICE file distributed with
   7  * this work for additional information regarding copyright ownership.
   8  * The ASF licenses this file to You under the Apache License, Version 2.0
   9  * (the "License"); you may not use this file except in compliance with
  10  * the License.  You may obtain a copy of the License at
  11  *
  12  *      http://www.apache.org/licenses/LICENSE-2.0
  13  *
  14  * Unless required by applicable law or agreed to in writing, software
  15  * distributed under the License is distributed on an "AS IS" BASIS,
  16  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  17  * See the License for the specific language governing permissions and
  18  * limitations under the License.
  19  */
  20 
  21 package com.sun.org.apache.xerces.internal.impl.xs;
  22 
  23 import com.sun.org.apache.xerces.internal.xni.QName;
  24 import com.sun.org.apache.xerces.internal.xs.XSConstants;
  25 import com.sun.org.apache.xerces.internal.xs.XSElementDeclaration;
  26 import com.sun.org.apache.xerces.internal.xs.XSObjectList;
  27 import com.sun.org.apache.xerces.internal.xs.XSSimpleTypeDefinition;
  28 import com.sun.org.apache.xerces.internal.xs.XSTypeDefinition;
  29 import java.util.ArrayList;
  30 import java.util.HashMap;
  31 import java.util.List;
  32 import java.util.Map;
  33 import java.util.Objects;
  34 
  35 /**
  36  * To store and validate information about substitutionGroup
  37  *
  38  * @xerces.internal
  39  *
  40  * @author Sandy Gao, IBM
  41  *
  42  * @LastModified: July 2019
  43  */
  44 public class SubstitutionGroupHandler {
  45 
  46     private static final XSElementDecl[] EMPTY_GROUP = new XSElementDecl[0];
  47 
  48     // global element declaration resolver
  49     private final XSElementDeclHelper fXSElementDeclHelper;
  50 
  51     /**
  52      * Default constructor
  53      */
  54     public SubstitutionGroupHandler(XSElementDeclHelper elementDeclHelper) {
  55         fXSElementDeclHelper = elementDeclHelper;
  56     }
  57 
  58     // 3.9.4 Element Sequence Locally Valid (Particle) 2.3.3
  59     // check whether one element decl matches an element with the given qname
  60     public XSElementDecl getMatchingElemDecl(QName element, XSElementDecl exemplar) {
  61         if (Objects.equals(element.localpart, exemplar.fName) &&
  62             Objects.equals(element.uri, exemplar.fTargetNamespace)) {
  63             return exemplar;
  64         }
  65 
  66         // if the exemplar is not a global element decl, then it's not possible
  67         // to be substituted by another element.
  68         if (exemplar.fScope != XSConstants.SCOPE_GLOBAL) {
  69             return null;
  70         }
  71 
  72         // if the decl blocks substitution, return false
  73         if ((exemplar.fBlock & XSConstants.DERIVATION_SUBSTITUTION) != 0) {
  74             return null;
  75         }
  76 
  77         // get the decl for the element
  78         XSElementDecl eDecl = fXSElementDeclHelper.getGlobalElementDecl(element);
  79         if (eDecl == null) {
  80             return null;
  81         }
  82 


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