1 /*
   2  * Copyright (c) 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.jaxp.validation;
  22 
  23 import com.sun.org.apache.xerces.internal.xni.grammars.Grammar;
  24 import com.sun.org.apache.xerces.internal.xni.grammars.XMLGrammarDescription;
  25 import com.sun.org.apache.xerces.internal.xni.grammars.XMLGrammarPool;
  26 
  27 /**
  28  * <p>Implementation of Schema for W3C XML Schemas which
  29  * contains schema components from one target namespace.</p>
  30  *
  31  * @author Michael Glavassevich, IBM
  32  * @LastModified: Nov 2017
  33  */
  34 final class SimpleXMLSchema extends AbstractXMLSchema implements XMLGrammarPool {
  35 
  36     /** Zero length grammar array. */
  37     private static final Grammar [] ZERO_LENGTH_GRAMMAR_ARRAY = new Grammar [0];
  38 
  39     private Grammar fGrammar;
  40     private Grammar[] fGrammars;
  41     private XMLGrammarDescription fGrammarDescription;
  42 
  43     public SimpleXMLSchema(Grammar grammar) {
  44         fGrammar = grammar;
  45         fGrammars = new Grammar[] {grammar};
  46         fGrammarDescription = grammar.getGrammarDescription();
  47     }
  48 
  49     /*
  50      * XMLGrammarPool methods
  51      */
  52 
  53     public Grammar[] retrieveInitialGrammarSet(String grammarType) {
  54         return XMLGrammarDescription.XML_SCHEMA.equals(grammarType) ?
  55                 fGrammars.clone() : ZERO_LENGTH_GRAMMAR_ARRAY;
  56     }
  57 
  58     public void cacheGrammars(String grammarType, Grammar[] grammars) {}
  59 
  60     public Grammar retrieveGrammar(XMLGrammarDescription desc) {
  61         return fGrammarDescription.equals(desc) ? fGrammar : null;
  62     }
  63 
  64     public void lockPool() {}
  65 
  66     public void unlockPool() {}
  67 
  68     public void clear() {}
  69 
  70     /*
  71      * XSGrammarPoolContainer methods
  72      */
  73 
  74     public XMLGrammarPool getGrammarPool() {
  75         return this;
  76     }
  77 
  78     public boolean isFullyComposed() {
  79         return true;
  80     }
  81 
  82 } // SimpleXMLSchema