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Java > Open Source Codes > com > sun > org > apache > xerces > internal > parsers > XPointerParserConfiguration


1 /*
2  * The Apache Software License, Version 1.1
3  *
4  *
5  * Copyright (c) 2001-2003 The Apache Software Foundation. All rights
6  * reserved.
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8  * Redistribution and use in source and binary forms, with or without
9  * modification, are permitted provided that the following conditions
10  * are met:
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13  * notice, this list of conditions and the following disclaimer.
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24  * Alternately, this acknowledgment may appear in the software itself,
25  * if and wherever such third-party acknowledgments normally appear.
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27  * 4. The names "Xerces" and "Apache Software Foundation" must
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50  * This software consists of voluntary contributions made by many
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52  * originally based on software copyright (c) 2003, International
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57 package com.sun.org.apache.xerces.internal.parsers;
58
59 import com.sun.org.apache.xerces.internal.impl.Constants;
60 import com.sun.org.apache.xerces.internal.util.SymbolTable;
61 import com.sun.org.apache.xerces.internal.xinclude.XPointerSchema;
62 import com.sun.org.apache.xerces.internal.xinclude.XIncludeNamespaceSupport;
63 import com.sun.org.apache.xerces.internal.xni.XMLDocumentHandler;
64 import com.sun.org.apache.xerces.internal.xni.grammars.XMLGrammarPool;
65 import com.sun.org.apache.xerces.internal.xni.parser.XMLComponentManager;
66 import com.sun.org.apache.xerces.internal.xni.parser.XMLDocumentSource;
67
68 /**
69  * @author Arun Yadav, Sun Microsystem.
70  */
71 public class XPointerParserConfiguration extends XML11Configuration {
72     
73     private XPointerSchema fXPointerSchemaComponent;
74     
75     /** Property identifier: error reporter. */
76     protected static final String JavaDoc XINCLUDE_HANDLER =
77     Constants.XERCES_PROPERTY_PREFIX + Constants.XINCLUDE_HANDLER_PROPERTY;
78     
79     /** Property identifier: error reporter. */
80     protected static final String JavaDoc NAMESPACE_CONTEXT =
81     Constants.XERCES_PROPERTY_PREFIX + Constants.NAMESPACE_CONTEXT_PROPERTY;
82     
83     /** Default constructor. */
84     public XPointerParserConfiguration() {
85         this(null, null, null);
86         //this(null, new XMLGrammarPoolImpl(), null);
87 } // <init>()
88
89     /**
90      * Constructs a parser configuration using the specified symbol table.
91      *
92      * @param symbolTable The symbol table to use.
93      */
94     public XPointerParserConfiguration(SymbolTable symbolTable) {
95         this(symbolTable, null, null);
96         //this(symbolTable, new XMLGrammarPoolImpl(), null);
97 } // <init>(SymbolTable)
98
99     /**
100      * Constructs a parser configuration using the specified symbol table and
101      * grammar pool.
102      * <p>
103      * <strong>REVISIT:</strong>
104      * Grammar pool will be updated when the new validation engine is
105      * implemented.
106      *
107      * @param symbolTable The symbol table to use.
108      * @param grammarPool The grammar pool to use.
109      */
110     public XPointerParserConfiguration(
111     SymbolTable symbolTable,
112     XMLGrammarPool grammarPool) {
113         this(symbolTable, grammarPool, null);
114     } // <init>(SymbolTable,XMLGrammarPool)
115
116     /**
117      * Constructs a parser configuration using the specified symbol table,
118      * grammar pool, and parent settings.
119      * <p>
120      * <strong>REVISIT:</strong>
121      * Grammar pool will be updated when the new validation engine is
122      * implemented.
123      *
124      * @param symbolTable The symbol table to use.
125      * @param grammarPool The grammar pool to use.
126      * @param parentSettings The parent settings.
127      */
128     public XPointerParserConfiguration(
129     SymbolTable symbolTable,
130     XMLGrammarPool grammarPool,
131     XMLComponentManager parentSettings) {
132         super(symbolTable, grammarPool, parentSettings);
133         
134         // add default recognized properties
135 final String JavaDoc[] recognizedProperties =
136         { XINCLUDE_HANDLER, NAMESPACE_CONTEXT };
137         
138         addRecognizedProperties(recognizedProperties);
139         setProperty(NAMESPACE_CONTEXT, new XIncludeNamespaceSupport());
140         
141     } // <init>(SymbolTable,XMLGrammarPool)}
142
143     /** Configures the pipeline. */
144     protected void configurePipeline() {
145         
146         super.configurePipeline();
147         // setup document pipeline
148 // add the XPointerSchema component to the list of recognized components
149 if (fXPointerSchemaComponent == null) {
150             if( (fXPointerSchemaComponent = (XPointerSchema)getProperty(XINCLUDE_HANDLER)) !=null){
151                 addComponent(fXPointerSchemaComponent);
152             }
153         }
154         // insert before fSchemaValidator, if one exists.
155 XMLDocumentHandler next = null;
156         if (fFeatures.get(XMLSCHEMA_VALIDATION) == Boolean.TRUE) {
157             // we don't have to worry about fSchemaValidator being null, since
158 // super.configurePipeline() instantiated it if the feature was set
159 next = fSchemaValidator.getDocumentHandler();
160         }
161         // Otherwise, insert after the last component in the pipeline
162
163         if (next != null) {
164             XMLDocumentSource prev = next.getDocumentSource();
165             if (prev != null) {
166                 fXPointerSchemaComponent.setDocumentSource(prev);
167                 prev.setDocumentHandler(fXPointerSchemaComponent);
168             }
169             next.setDocumentSource(fXPointerSchemaComponent);
170             fXPointerSchemaComponent.setDocumentHandler(next);
171         }
172         else {
173             next = fLastComponent.getDocumentHandler();
174             if (next != null) {
175                 fXPointerSchemaComponent.setDocumentHandler(next);
176                 next.setDocumentSource(fXPointerSchemaComponent);
177             }
178             fLastComponent.setDocumentHandler(fXPointerSchemaComponent);
179             fXPointerSchemaComponent.setDocumentSource(fLastComponent);
180             
181             setDocumentHandler(fXPointerSchemaComponent);
182         }
183         
184     } // configurePipeline()
185 }
186
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