author | joehw |
Mon, 22 Feb 2016 11:00:06 -0800 | |
changeset 36146 | eca249f3c768 |
parent 35333 | 1a6e1fdb7c5e |
child 37626 | d4fb6a5dc001 |
permissions | -rw-r--r-- |
12005 | 1 |
/* |
36146
eca249f3c768
8149915: enabling validate-annotations feature for xsd schema with annotation causes NPE
joehw
parents:
35333
diff
changeset
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* Copyright (c) 2003, 2016, Oracle and/or its affiliates. All rights reserved. |
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*/ |
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/* |
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* Copyright 2005 The Apache Software Foundation. |
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* |
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* Licensed under the Apache License, Version 2.0 (the "License"); |
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* you may not use this file except in compliance with the License. |
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* You may obtain a copy of the License at |
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* |
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* http://www.apache.org/licenses/LICENSE-2.0 |
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* |
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* Unless required by applicable law or agreed to in writing, software |
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* distributed under the License is distributed on an "AS IS" BASIS, |
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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* See the License for the specific language governing permissions and |
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* limitations under the License. |
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*/ |
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package com.sun.org.apache.xerces.internal.impl; |
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import com.sun.org.apache.xerces.internal.impl.dtd.XMLDTDDescription; |
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import com.sun.org.apache.xerces.internal.impl.validation.ValidationManager; |
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import com.sun.org.apache.xerces.internal.util.NamespaceSupport; |
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import com.sun.org.apache.xerces.internal.util.XMLChar; |
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import com.sun.org.apache.xerces.internal.util.XMLResourceIdentifierImpl; |
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import com.sun.org.apache.xerces.internal.util.XMLStringBuffer; |
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import com.sun.org.apache.xerces.internal.utils.SecuritySupport; |
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import com.sun.org.apache.xerces.internal.xni.Augmentations; |
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import com.sun.org.apache.xerces.internal.xni.NamespaceContext; |
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import com.sun.org.apache.xerces.internal.xni.XMLResourceIdentifier; |
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import com.sun.org.apache.xerces.internal.xni.XNIException; |
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import com.sun.org.apache.xerces.internal.xni.parser.XMLComponentManager; |
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import com.sun.org.apache.xerces.internal.xni.parser.XMLConfigurationException; |
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import com.sun.org.apache.xerces.internal.xni.parser.XMLDTDScanner; |
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import com.sun.org.apache.xerces.internal.xni.parser.XMLInputSource; |
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import com.sun.xml.internal.stream.Entity; |
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import com.sun.xml.internal.stream.StaxXMLInputSource; |
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import com.sun.xml.internal.stream.dtd.DTDGrammarUtil; |
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import java.io.EOFException; |
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import java.io.IOException; |
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import javax.xml.stream.XMLInputFactory; |
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import javax.xml.stream.events.XMLEvent; |
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/** |
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* This class is responsible for scanning XML document structure |
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* and content. |
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* |
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* This class has been modified as per the new design which is more suited to |
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* efficiently build pull parser. Lot of improvements have been done and |
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* the code has been added to support stax functionality/features. |
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* |
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* @author Neeraj Bajaj, Sun Microsystems |
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* @author K.Venugopal, Sun Microsystems |
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* @author Glenn Marcy, IBM |
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* @author Andy Clark, IBM |
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* @author Arnaud Le Hors, IBM |
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* @author Eric Ye, IBM |
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* @author Sunitha Reddy, Sun Microsystems |
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* |
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* Refer to the table in unit-test javax.xml.stream.XMLStreamReaderTest.SupportDTD for changes |
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* related to property SupportDTD. |
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* @author Joe Wang, Sun Microsystems |
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*/ |
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public class XMLDocumentScannerImpl |
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extends XMLDocumentFragmentScannerImpl{ |
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// |
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// Constants |
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// |
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// scanner states |
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/** Scanner state: XML declaration. */ |
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protected static final int SCANNER_STATE_XML_DECL = 42; |
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/** Scanner state: prolog. */ |
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protected static final int SCANNER_STATE_PROLOG = 43; |
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/** Scanner state: trailing misc. */ |
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protected static final int SCANNER_STATE_TRAILING_MISC = 44; |
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/** Scanner state: DTD internal declarations. */ |
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protected static final int SCANNER_STATE_DTD_INTERNAL_DECLS = 45; |
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/** Scanner state: open DTD external subset. */ |
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protected static final int SCANNER_STATE_DTD_EXTERNAL = 46; |
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/** Scanner state: DTD external declarations. */ |
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protected static final int SCANNER_STATE_DTD_EXTERNAL_DECLS = 47; |
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/** Scanner state: NO MORE ELEMENTS. */ |
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protected static final int SCANNER_STATE_NO_SUCH_ELEMENT_EXCEPTION = 48; |
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// feature identifiers |
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/** Property identifier document scanner: */ |
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protected static final String DOCUMENT_SCANNER = |
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Constants.XERCES_PROPERTY_PREFIX + Constants.DOCUMENT_SCANNER_PROPERTY; |
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/** Feature identifier: load external DTD. */ |
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protected static final String LOAD_EXTERNAL_DTD = |
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Constants.XERCES_FEATURE_PREFIX + Constants.LOAD_EXTERNAL_DTD_FEATURE; |
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/** Feature identifier: load external DTD. */ |
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protected static final String DISALLOW_DOCTYPE_DECL_FEATURE = |
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Constants.XERCES_FEATURE_PREFIX + Constants.DISALLOW_DOCTYPE_DECL_FEATURE; |
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// property identifiers |
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/** Property identifier: DTD scanner. */ |
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protected static final String DTD_SCANNER = |
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Constants.XERCES_PROPERTY_PREFIX + Constants.DTD_SCANNER_PROPERTY; |
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// property identifier: ValidationManager |
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protected static final String VALIDATION_MANAGER = |
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Constants.XERCES_PROPERTY_PREFIX + Constants.VALIDATION_MANAGER_PROPERTY; |
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/** property identifier: NamespaceContext */ |
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protected static final String NAMESPACE_CONTEXT = |
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Constants.XERCES_PROPERTY_PREFIX + Constants.NAMESPACE_CONTEXT_PROPERTY; |
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// recognized features and properties |
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/** Recognized features. */ |
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private static final String[] RECOGNIZED_FEATURES = { |
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LOAD_EXTERNAL_DTD, |
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DISALLOW_DOCTYPE_DECL_FEATURE, |
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}; |
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/** Feature defaults. */ |
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private static final Boolean[] FEATURE_DEFAULTS = { |
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Boolean.TRUE, |
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Boolean.FALSE, |
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}; |
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/** Recognized properties. */ |
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private static final String[] RECOGNIZED_PROPERTIES = { |
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DTD_SCANNER, |
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VALIDATION_MANAGER |
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}; |
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/** Property defaults. */ |
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private static final Object[] PROPERTY_DEFAULTS = { |
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null, |
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null |
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}; |
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// |
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// Data((Boolean)propertyManager.getProperty(XMLInputFactory.IS_NAMESPACE_AWARE)).booleanValue(); |
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// |
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// properties |
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/** DTD scanner. */ |
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protected XMLDTDScanner fDTDScanner = null; |
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/** Validation manager . */ |
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//xxx: fValidationManager code needs to be added yet! |
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protected ValidationManager fValidationManager; |
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protected XMLStringBuffer fDTDDecl = null; |
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protected boolean fReadingDTD = false; |
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protected boolean fAddedListener = false; |
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// protected data |
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// other info |
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/** Doctype name. */ |
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protected String fDoctypeName; |
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/** Doctype declaration public identifier. */ |
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protected String fDoctypePublicId; |
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/** Doctype declaration system identifier. */ |
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protected String fDoctypeSystemId; |
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/** Namespace support. */ |
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protected NamespaceContext fNamespaceContext = new NamespaceSupport(); |
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// features |
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/** Load external DTD. */ |
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protected boolean fLoadExternalDTD = true; |
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// state |
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/** Seen doctype declaration. */ |
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protected boolean fSeenDoctypeDecl; |
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protected boolean fScanEndElement; |
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//protected int fScannerLastState ; |
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// drivers |
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/** XML declaration driver. */ |
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protected Driver fXMLDeclDriver = new XMLDeclDriver(); |
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/** Prolog driver. */ |
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protected Driver fPrologDriver = new PrologDriver(); |
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/** DTD driver. */ |
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protected Driver fDTDDriver = null ; |
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/** Trailing miscellaneous section driver. */ |
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protected Driver fTrailingMiscDriver = new TrailingMiscDriver(); |
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protected int fStartPos = 0; |
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protected int fEndPos = 0; |
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protected boolean fSeenInternalSubset= false; |
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// temporary variables |
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/** Array of 3 strings. */ |
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private String[] fStrings = new String[3]; |
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/** External subset source. */ |
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private XMLInputSource fExternalSubsetSource = null; |
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/** A DTD Description. */ |
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private final XMLDTDDescription fDTDDescription = new XMLDTDDescription(null, null, null, null, null); |
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private static final char [] DOCTYPE = {'D','O','C','T','Y','P','E'}; |
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private static final char [] COMMENTSTRING = {'-','-'}; |
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// |
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// Constructors |
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// |
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/** Default constructor. */ |
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public XMLDocumentScannerImpl() {} // <init>() |
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// |
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// XMLDocumentScanner methods |
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// |
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/** |
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* Sets the input source. |
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* |
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* @param inputSource The input source. |
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* |
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* @throws IOException Thrown on i/o error. |
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*/ |
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public void setInputSource(XMLInputSource inputSource) throws IOException { |
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fEntityManager.setEntityHandler(this); |
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//this starts a new entity and sets the current entity to the document entity. |
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fEntityManager.startDocumentEntity(inputSource); |
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// fDocumentSystemId = fEntityManager.expandSystemId(inputSource.getSystemId()); |
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setScannerState(XMLEvent.START_DOCUMENT); |
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} // setInputSource(XMLInputSource) |
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/**return the state of the scanner */ |
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public int getScannetState(){ |
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return fScannerState ; |
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} |
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public void reset(PropertyManager propertyManager) { |
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super.reset(propertyManager); |
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// other settings |
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fDoctypeName = null; |
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fDoctypePublicId = null; |
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fDoctypeSystemId = null; |
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fSeenDoctypeDecl = false; |
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fNamespaceContext.reset(); |
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13061
7dfa5735cbc2
7157610: NullPointerException occurs when parsing XML doc
joehw
parents:
12457
diff
changeset
|
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fSupportDTD = ((Boolean)propertyManager.getProperty(XMLInputFactory.SUPPORT_DTD)).booleanValue(); |
12005 | 276 |
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// xerces features |
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fLoadExternalDTD = !((Boolean)propertyManager.getProperty(Constants.ZEPHYR_PROPERTY_PREFIX + Constants.IGNORE_EXTERNAL_DTD)).booleanValue(); |
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setScannerState(XMLEvent.START_DOCUMENT); |
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setDriver(fXMLDeclDriver); |
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fSeenInternalSubset = false; |
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if(fDTDScanner != null){ |
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((XMLDTDScannerImpl)fDTDScanner).reset(propertyManager); |
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} |
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fEndPos = 0; |
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fStartPos = 0; |
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if(fDTDDecl != null){ |
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fDTDDecl.clear(); |
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} |
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} |
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/** |
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* Resets the component. The component can query the component manager |
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* about any features and properties that affect the operation of the |
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* component. |
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* |
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* @param componentManager The component manager. |
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* |
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* @throws SAXException Thrown by component on initialization error. |
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* For example, if a feature or property is |
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* required for the operation of the component, the |
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* component manager may throw a |
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* SAXNotRecognizedException or a |
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* SAXNotSupportedException. |
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*/ |
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public void reset(XMLComponentManager componentManager) |
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throws XMLConfigurationException { |
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super.reset(componentManager); |
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// other settings |
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fDoctypeName = null; |
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fDoctypePublicId = null; |
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fDoctypeSystemId = null; |
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fSeenDoctypeDecl = false; |
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fExternalSubsetSource = null; |
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// xerces features |
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fLoadExternalDTD = componentManager.getFeature(LOAD_EXTERNAL_DTD, true); |
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fDisallowDoctype = componentManager.getFeature(DISALLOW_DOCTYPE_DECL_FEATURE, false); |
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fNamespaces = componentManager.getFeature(NAMESPACES, true); |
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fSeenInternalSubset = false; |
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// xerces properties |
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fDTDScanner = (XMLDTDScanner)componentManager.getProperty(DTD_SCANNER); |
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fValidationManager = (ValidationManager)componentManager.getProperty(VALIDATION_MANAGER, null); |
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try { |
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fNamespaceContext = (NamespaceContext)componentManager.getProperty(NAMESPACE_CONTEXT); |
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} |
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catch (XMLConfigurationException e) { } |
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if (fNamespaceContext == null) { |
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fNamespaceContext = new NamespaceSupport(); |
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} |
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fNamespaceContext.reset(); |
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fEndPos = 0; |
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fStartPos = 0; |
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if(fDTDDecl != null) |
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fDTDDecl.clear(); |
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//fEntityScanner.registerListener((XMLBufferListener)componentManager.getProperty(DOCUMENT_SCANNER)); |
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// setup driver |
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setScannerState(SCANNER_STATE_XML_DECL); |
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setDriver(fXMLDeclDriver); |
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} // reset(XMLComponentManager) |
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/** |
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* Returns a list of feature identifiers that are recognized by |
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* this component. This method may return null if no features |
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* are recognized by this component. |
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*/ |
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public String[] getRecognizedFeatures() { |
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String[] featureIds = super.getRecognizedFeatures(); |
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int length = featureIds != null ? featureIds.length : 0; |
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String[] combinedFeatureIds = new String[length + RECOGNIZED_FEATURES.length]; |
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if (featureIds != null) { |
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System.arraycopy(featureIds, 0, combinedFeatureIds, 0, featureIds.length); |
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} |
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System.arraycopy(RECOGNIZED_FEATURES, 0, combinedFeatureIds, length, RECOGNIZED_FEATURES.length); |
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return combinedFeatureIds; |
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} // getRecognizedFeatures():String[] |
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/** |
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* Sets the state of a feature. This method is called by the component |
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* manager any time after reset when a feature changes state. |
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* <p> |
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* <strong>Note:</strong> Components should silently ignore features |
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* that do not affect the operation of the component. |
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* |
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* @param featureId The feature identifier. |
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* @param state The state of the feature. |
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* |
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* @throws SAXNotRecognizedException The component should not throw |
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* this exception. |
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* @throws SAXNotSupportedException The component should not throw |
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* this exception. |
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385 |
*/ |
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386 |
public void setFeature(String featureId, boolean state) |
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throws XMLConfigurationException { |
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388 |
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389 |
super.setFeature(featureId, state); |
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390 |
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// Xerces properties |
|
392 |
if (featureId.startsWith(Constants.XERCES_FEATURE_PREFIX)) { |
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final int suffixLength = featureId.length() - Constants.XERCES_FEATURE_PREFIX.length(); |
|
394 |
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395 |
if (suffixLength == Constants.LOAD_EXTERNAL_DTD_FEATURE.length() && |
|
396 |
featureId.endsWith(Constants.LOAD_EXTERNAL_DTD_FEATURE)) { |
|
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fLoadExternalDTD = state; |
|
398 |
return; |
|
399 |
} |
|
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else if (suffixLength == Constants.DISALLOW_DOCTYPE_DECL_FEATURE.length() && |
|
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featureId.endsWith(Constants.DISALLOW_DOCTYPE_DECL_FEATURE)) { |
|
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fDisallowDoctype = state; |
|
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return; |
|
404 |
} |
|
405 |
} |
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406 |
||
407 |
} // setFeature(String,boolean) |
|
408 |
||
409 |
/** |
|
410 |
* Returns a list of property identifiers that are recognized by |
|
411 |
* this component. This method may return null if no properties |
|
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* are recognized by this component. |
|
413 |
*/ |
|
414 |
public String[] getRecognizedProperties() { |
|
415 |
String[] propertyIds = super.getRecognizedProperties(); |
|
416 |
int length = propertyIds != null ? propertyIds.length : 0; |
|
417 |
String[] combinedPropertyIds = new String[length + RECOGNIZED_PROPERTIES.length]; |
|
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if (propertyIds != null) { |
|
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System.arraycopy(propertyIds, 0, combinedPropertyIds, 0, propertyIds.length); |
|
420 |
} |
|
421 |
System.arraycopy(RECOGNIZED_PROPERTIES, 0, combinedPropertyIds, length, RECOGNIZED_PROPERTIES.length); |
|
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return combinedPropertyIds; |
|
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} // getRecognizedProperties():String[] |
|
424 |
||
425 |
/** |
|
426 |
* Sets the value of a property. This method is called by the component |
|
427 |
* manager any time after reset when a property changes value. |
|
428 |
* <p> |
|
429 |
* <strong>Note:</strong> Components should silently ignore properties |
|
430 |
* that do not affect the operation of the component. |
|
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* |
|
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* @param propertyId The property identifier. |
|
433 |
* @param value The value of the property. |
|
434 |
* |
|
435 |
* @throws SAXNotRecognizedException The component should not throw |
|
436 |
* this exception. |
|
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* @throws SAXNotSupportedException The component should not throw |
|
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* this exception. |
|
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*/ |
|
440 |
public void setProperty(String propertyId, Object value) |
|
441 |
throws XMLConfigurationException { |
|
442 |
||
443 |
super.setProperty(propertyId, value); |
|
444 |
||
445 |
// Xerces properties |
|
446 |
if (propertyId.startsWith(Constants.XERCES_PROPERTY_PREFIX)) { |
|
447 |
final int suffixLength = propertyId.length() - Constants.XERCES_PROPERTY_PREFIX.length(); |
|
448 |
||
449 |
if (suffixLength == Constants.DTD_SCANNER_PROPERTY.length() && |
|
450 |
propertyId.endsWith(Constants.DTD_SCANNER_PROPERTY)) { |
|
451 |
fDTDScanner = (XMLDTDScanner)value; |
|
452 |
} |
|
453 |
if (suffixLength == Constants.NAMESPACE_CONTEXT_PROPERTY.length() && |
|
454 |
propertyId.endsWith(Constants.NAMESPACE_CONTEXT_PROPERTY)) { |
|
455 |
if (value != null) { |
|
456 |
fNamespaceContext = (NamespaceContext)value; |
|
457 |
} |
|
458 |
} |
|
459 |
||
460 |
return; |
|
461 |
} |
|
462 |
||
463 |
} // setProperty(String,Object) |
|
464 |
||
465 |
/** |
|
466 |
* Returns the default state for a feature, or null if this |
|
467 |
* component does not want to report a default value for this |
|
468 |
* feature. |
|
469 |
* |
|
470 |
* @param featureId The feature identifier. |
|
471 |
* |
|
472 |
* @since Xerces 2.2.0 |
|
473 |
*/ |
|
474 |
public Boolean getFeatureDefault(String featureId) { |
|
475 |
||
476 |
for (int i = 0; i < RECOGNIZED_FEATURES.length; i++) { |
|
477 |
if (RECOGNIZED_FEATURES[i].equals(featureId)) { |
|
478 |
return FEATURE_DEFAULTS[i]; |
|
479 |
} |
|
480 |
} |
|
481 |
return super.getFeatureDefault(featureId); |
|
482 |
} // getFeatureDefault(String):Boolean |
|
483 |
||
484 |
/** |
|
485 |
* Returns the default state for a property, or null if this |
|
486 |
* component does not want to report a default value for this |
|
487 |
* property. |
|
488 |
* |
|
489 |
* @param propertyId The property identifier. |
|
490 |
* |
|
491 |
* @since Xerces 2.2.0 |
|
492 |
*/ |
|
493 |
public Object getPropertyDefault(String propertyId) { |
|
494 |
for (int i = 0; i < RECOGNIZED_PROPERTIES.length; i++) { |
|
495 |
if (RECOGNIZED_PROPERTIES[i].equals(propertyId)) { |
|
496 |
return PROPERTY_DEFAULTS[i]; |
|
497 |
} |
|
498 |
} |
|
499 |
return super.getPropertyDefault(propertyId); |
|
500 |
} // getPropertyDefault(String):Object |
|
501 |
||
502 |
// |
|
503 |
// XMLEntityHandler methods |
|
504 |
// |
|
505 |
||
506 |
/** |
|
507 |
* This method notifies of the start of an entity. The DTD has the |
|
508 |
* pseudo-name of "[dtd]" parameter entity names start with '%'; and |
|
509 |
* general entities are just specified by their name. |
|
510 |
* |
|
511 |
* @param name The name of the entity. |
|
512 |
* @param identifier The resource identifier. |
|
513 |
* @param encoding The auto-detected IANA encoding name of the entity |
|
514 |
* stream. This value will be null in those situations |
|
515 |
* where the entity encoding is not auto-detected (e.g. |
|
516 |
* internal entities or a document entity that is |
|
517 |
* parsed from a java.io.Reader). |
|
518 |
* |
|
519 |
* @throws XNIException Thrown by handler to signal an error. |
|
520 |
*/ |
|
521 |
public void startEntity(String name, |
|
522 |
XMLResourceIdentifier identifier, |
|
523 |
String encoding, Augmentations augs) throws XNIException { |
|
524 |
||
525 |
super.startEntity(name, identifier, encoding,augs); |
|
526 |
||
527 |
//register current document scanner as a listener for XMLEntityScanner |
|
528 |
fEntityScanner.registerListener(this); |
|
529 |
||
530 |
// prepare to look for a TextDecl if external general entity |
|
531 |
if (!name.equals("[xml]") && fEntityScanner.isExternal()) { |
|
532 |
// Don't do this if we're skipping the entity! |
|
533 |
if (augs == null || !((Boolean) augs.getItem(Constants.ENTITY_SKIPPED)).booleanValue()) { |
|
534 |
setScannerState(SCANNER_STATE_TEXT_DECL); |
|
535 |
} |
|
536 |
} |
|
537 |
||
538 |
// call handler |
|
539 |
/** comment this part.. LOCATOR problem.. */ |
|
540 |
if (fDocumentHandler != null && name.equals("[xml]")) { |
|
541 |
fDocumentHandler.startDocument(fEntityScanner, encoding, fNamespaceContext, null); |
|
542 |
} |
|
543 |
||
544 |
} // startEntity(String,identifier,String) |
|
545 |
||
546 |
||
547 |
/** |
|
548 |
* This method notifies the end of an entity. The DTD has the pseudo-name |
|
549 |
* of "[dtd]" parameter entity names start with '%'; and general entities |
|
550 |
* are just specified by their name. |
|
551 |
* |
|
552 |
* @param name The name of the entity. |
|
553 |
* |
|
554 |
* @throws XNIException Thrown by handler to signal an error. |
|
555 |
*/ |
|
556 |
public void endEntity(String name, Augmentations augs) throws IOException, XNIException { |
|
557 |
||
558 |
super.endEntity(name, augs); |
|
559 |
||
560 |
if(name.equals("[xml]")){ |
|
561 |
//if fMarkupDepth has reached 0. |
|
562 |
//and driver is fTrailingMiscDriver (which |
|
563 |
//handles end of document in normal case) |
|
564 |
//set the scanner state of SCANNER_STATE_TERMINATED |
|
565 |
if(fMarkupDepth == 0 && fDriver == fTrailingMiscDriver){ |
|
566 |
//set the scanner set to SCANNER_STATE_TERMINATED |
|
567 |
setScannerState(SCANNER_STATE_TERMINATED) ; |
|
568 |
} else{ |
|
569 |
//else we have reached the end of document prematurely |
|
570 |
//so throw EOFException. |
|
571 |
throw new java.io.EOFException(); |
|
572 |
} |
|
573 |
||
574 |
//this is taken care in wrapper which generates XNI callbacks, There are no next events |
|
575 |
||
576 |
//if (fDocumentHandler != null) { |
|
577 |
//fDocumentHandler.endDocument(null); |
|
578 |
//} |
|
579 |
} |
|
580 |
} // endEntity(String) |
|
581 |
||
582 |
||
583 |
public XMLStringBuffer getDTDDecl(){ |
|
584 |
Entity entity = fEntityScanner.getCurrentEntity(); |
|
585 |
fDTDDecl.append(((Entity.ScannedEntity)entity).ch,fStartPos , fEndPos-fStartPos); |
|
586 |
if(fSeenInternalSubset) |
|
587 |
fDTDDecl.append("]>"); |
|
588 |
return fDTDDecl; |
|
589 |
} |
|
590 |
||
591 |
public String getCharacterEncodingScheme(){ |
|
592 |
return fDeclaredEncoding; |
|
593 |
} |
|
594 |
||
595 |
/** return the next state on the input |
|
596 |
* |
|
597 |
* @return int |
|
598 |
*/ |
|
599 |
||
600 |
public int next() throws IOException, XNIException { |
|
601 |
return fDriver.next(); |
|
602 |
} |
|
603 |
||
604 |
//getNamespaceContext |
|
605 |
public NamespaceContext getNamespaceContext(){ |
|
606 |
return fNamespaceContext ; |
|
607 |
} |
|
608 |
||
609 |
||
610 |
||
611 |
// |
|
612 |
// Protected methods |
|
613 |
// |
|
614 |
||
615 |
// driver factory methods |
|
616 |
||
617 |
/** Creates a content driver. */ |
|
618 |
protected Driver createContentDriver() { |
|
619 |
return new ContentDriver(); |
|
620 |
} // createContentDriver():Driver |
|
621 |
||
622 |
// scanning methods |
|
623 |
||
624 |
/** Scans a doctype declaration. */ |
|
13061
7dfa5735cbc2
7157610: NullPointerException occurs when parsing XML doc
joehw
parents:
12457
diff
changeset
|
625 |
protected boolean scanDoctypeDecl(boolean supportDTD) throws IOException, XNIException { |
12005 | 626 |
|
627 |
// spaces |
|
628 |
if (!fEntityScanner.skipSpaces()) { |
|
629 |
reportFatalError("MSG_SPACE_REQUIRED_BEFORE_ROOT_ELEMENT_TYPE_IN_DOCTYPEDECL", |
|
630 |
null); |
|
631 |
} |
|
632 |
||
633 |
// root element name |
|
634 |
fDoctypeName = fEntityScanner.scanName(); |
|
635 |
if (fDoctypeName == null) { |
|
636 |
reportFatalError("MSG_ROOT_ELEMENT_TYPE_REQUIRED", null); |
|
637 |
} |
|
638 |
||
639 |
// external id |
|
640 |
if (fEntityScanner.skipSpaces()) { |
|
641 |
scanExternalID(fStrings, false); |
|
642 |
fDoctypeSystemId = fStrings[0]; |
|
643 |
fDoctypePublicId = fStrings[1]; |
|
644 |
fEntityScanner.skipSpaces(); |
|
645 |
} |
|
646 |
||
647 |
fHasExternalDTD = fDoctypeSystemId != null; |
|
648 |
||
649 |
// Attempt to locate an external subset with an external subset resolver. |
|
13061
7dfa5735cbc2
7157610: NullPointerException occurs when parsing XML doc
joehw
parents:
12457
diff
changeset
|
650 |
if (supportDTD && !fHasExternalDTD && fExternalSubsetResolver != null) { |
12005 | 651 |
fDTDDescription.setValues(null, null, fEntityManager.getCurrentResourceIdentifier().getExpandedSystemId(), null); |
652 |
fDTDDescription.setRootName(fDoctypeName); |
|
653 |
fExternalSubsetSource = fExternalSubsetResolver.getExternalSubset(fDTDDescription); |
|
654 |
fHasExternalDTD = fExternalSubsetSource != null; |
|
655 |
} |
|
656 |
||
657 |
// call handler |
|
13061
7dfa5735cbc2
7157610: NullPointerException occurs when parsing XML doc
joehw
parents:
12457
diff
changeset
|
658 |
if (supportDTD && fDocumentHandler != null) { |
12005 | 659 |
// NOTE: I don't like calling the doctypeDecl callback until |
660 |
// end of the *full* doctype line (including internal |
|
661 |
// subset) is parsed correctly but SAX2 requires that |
|
662 |
// it knows the root element name and public and system |
|
663 |
// identifier for the startDTD call. -Ac |
|
664 |
if (fExternalSubsetSource == null) { |
|
665 |
fDocumentHandler.doctypeDecl(fDoctypeName, fDoctypePublicId, fDoctypeSystemId, null); |
|
666 |
} |
|
667 |
else { |
|
668 |
fDocumentHandler.doctypeDecl(fDoctypeName, fExternalSubsetSource.getPublicId(), fExternalSubsetSource.getSystemId(), null); |
|
669 |
} |
|
670 |
} |
|
671 |
||
672 |
// is there an internal subset? |
|
673 |
boolean internalSubset = true; |
|
674 |
if (!fEntityScanner.skipChar('[')) { |
|
675 |
internalSubset = false; |
|
676 |
fEntityScanner.skipSpaces(); |
|
677 |
if (!fEntityScanner.skipChar('>')) { |
|
678 |
reportFatalError("DoctypedeclUnterminated", new Object[]{fDoctypeName}); |
|
679 |
} |
|
680 |
fMarkupDepth--; |
|
681 |
} |
|
682 |
return internalSubset; |
|
683 |
||
684 |
} // scanDoctypeDecl():boolean |
|
685 |
||
686 |
// |
|
687 |
// Private methods |
|
688 |
// |
|
689 |
/** Set the scanner state after scanning DTD */ |
|
690 |
protected void setEndDTDScanState() { |
|
691 |
setScannerState(SCANNER_STATE_PROLOG); |
|
692 |
setDriver(fPrologDriver); |
|
693 |
fEntityManager.setEntityHandler(XMLDocumentScannerImpl.this); |
|
694 |
fReadingDTD=false; |
|
695 |
} |
|
696 |
||
697 |
/** Returns the scanner state name. */ |
|
698 |
protected String getScannerStateName(int state) { |
|
699 |
||
700 |
switch (state) { |
|
701 |
case SCANNER_STATE_XML_DECL: return "SCANNER_STATE_XML_DECL"; |
|
702 |
case SCANNER_STATE_PROLOG: return "SCANNER_STATE_PROLOG"; |
|
703 |
case SCANNER_STATE_TRAILING_MISC: return "SCANNER_STATE_TRAILING_MISC"; |
|
704 |
case SCANNER_STATE_DTD_INTERNAL_DECLS: return "SCANNER_STATE_DTD_INTERNAL_DECLS"; |
|
705 |
case SCANNER_STATE_DTD_EXTERNAL: return "SCANNER_STATE_DTD_EXTERNAL"; |
|
706 |
case SCANNER_STATE_DTD_EXTERNAL_DECLS: return "SCANNER_STATE_DTD_EXTERNAL_DECLS"; |
|
707 |
} |
|
708 |
return super.getScannerStateName(state); |
|
709 |
||
710 |
} // getScannerStateName(int):String |
|
711 |
||
712 |
// |
|
713 |
// Classes |
|
714 |
// |
|
715 |
||
716 |
/** |
|
717 |
* Driver to handle XMLDecl scanning. |
|
718 |
* |
|
719 |
* This class has been modified as per the new design which is more suited to |
|
720 |
* efficiently build pull parser. Lots of performance improvements have been done and |
|
721 |
* the code has been added to support stax functionality/features. |
|
722 |
* |
|
723 |
* @author Neeraj Bajaj, Sun Microsystems. |
|
724 |
* |
|
725 |
* @author Andy Clark, IBM |
|
726 |
*/ |
|
727 |
protected final class XMLDeclDriver |
|
728 |
implements Driver { |
|
729 |
||
730 |
// |
|
731 |
// Driver methods |
|
732 |
// |
|
733 |
||
734 |
||
735 |
public int next() throws IOException, XNIException { |
|
736 |
if(DEBUG_NEXT){ |
|
737 |
System.out.println("NOW IN XMLDeclDriver"); |
|
738 |
} |
|
739 |
||
740 |
// next driver is prolog regardless of whether there |
|
741 |
// is an XMLDecl in this document |
|
742 |
setScannerState(SCANNER_STATE_PROLOG); |
|
743 |
setDriver(fPrologDriver); |
|
744 |
||
745 |
//System.out.println("fEntityScanner = " + fEntityScanner); |
|
746 |
// scan XMLDecl |
|
747 |
try { |
|
748 |
if (fEntityScanner.skipString(xmlDecl)) { |
|
749 |
fMarkupDepth++; |
|
750 |
// NOTE: special case where document starts with a PI |
|
751 |
// whose name starts with "xml" (e.g. "xmlfoo") |
|
752 |
if (XMLChar.isName(fEntityScanner.peekChar())) { |
|
753 |
fStringBuffer.clear(); |
|
754 |
fStringBuffer.append("xml"); |
|
755 |
while (XMLChar.isName(fEntityScanner.peekChar())) { |
|
756 |
fStringBuffer.append((char)fEntityScanner.scanChar()); |
|
757 |
} |
|
758 |
String target = fSymbolTable.addSymbol(fStringBuffer.ch, fStringBuffer.offset, fStringBuffer.length); |
|
759 |
//this function should fill the data.. and set the fEvent object to this event. |
|
760 |
fContentBuffer.clear() ; |
|
761 |
scanPIData(target, fContentBuffer); |
|
762 |
//REVISIT:where else we can set this value to 'true' |
|
763 |
fEntityManager.fCurrentEntity.mayReadChunks = true; |
|
764 |
//return PI event since PI was encountered |
|
765 |
return XMLEvent.PROCESSING_INSTRUCTION ; |
|
766 |
} |
|
767 |
// standard XML declaration |
|
768 |
else { |
|
769 |
scanXMLDeclOrTextDecl(false); |
|
770 |
//REVISIT:where else we can set this value to 'true' |
|
771 |
fEntityManager.fCurrentEntity.mayReadChunks = true; |
|
772 |
return XMLEvent.START_DOCUMENT; |
|
773 |
} |
|
774 |
} else{ |
|
775 |
//REVISIT:where else we can set this value to 'true' |
|
776 |
fEntityManager.fCurrentEntity.mayReadChunks = true; |
|
777 |
//In both case return the START_DOCUMENT. ony difference is that first block will |
|
778 |
//cosume the XML declaration if any. |
|
779 |
return XMLEvent.START_DOCUMENT; |
|
780 |
} |
|
781 |
||
782 |
||
783 |
//START_OF_THE_DOCUMENT |
|
784 |
||
785 |
||
786 |
} |
|
787 |
||
788 |
// premature end of file |
|
789 |
catch (EOFException e) { |
|
790 |
reportFatalError("PrematureEOF", null); |
|
791 |
return -1; |
|
792 |
//throw e; |
|
793 |
} |
|
794 |
||
795 |
} |
|
796 |
} // class XMLDeclDriver |
|
797 |
||
798 |
/** |
|
799 |
* Driver to handle prolog scanning. |
|
800 |
* |
|
801 |
* @author Andy Clark, IBM |
|
802 |
*/ |
|
803 |
protected final class PrologDriver |
|
804 |
implements Driver { |
|
805 |
||
806 |
/** |
|
807 |
* Drives the parser to the next state/event on the input. Parser is guaranteed |
|
808 |
* to stop at the next state/event. |
|
809 |
* |
|
810 |
* Internally XML document is divided into several states. Each state represents |
|
811 |
* a sections of XML document. When this functions returns normally, it has read |
|
812 |
* the section of XML document and returns the state corresponding to section of |
|
813 |
* document which has been read. For optimizations, a particular driver |
|
814 |
* can read ahead of the section of document (state returned) just read and |
|
815 |
* can maintain a different internal state. |
|
816 |
* |
|
817 |
* @return state representing the section of document just read. |
|
818 |
* |
|
819 |
* @throws IOException Thrown on i/o error. |
|
820 |
* @throws XNIException Thrown on parse error. |
|
821 |
*/ |
|
822 |
||
823 |
public int next() throws IOException, XNIException { |
|
824 |
//System.out.println("here in next"); |
|
825 |
||
826 |
if(DEBUG_NEXT){ |
|
827 |
System.out.println("NOW IN PrologDriver"); |
|
828 |
} |
|
829 |
try { |
|
830 |
do { |
|
831 |
switch (fScannerState) { |
|
832 |
case SCANNER_STATE_PROLOG: { |
|
833 |
fEntityScanner.skipSpaces(); |
|
834 |
if (fEntityScanner.skipChar('<')) { |
|
835 |
setScannerState(SCANNER_STATE_START_OF_MARKUP); |
|
836 |
} else if (fEntityScanner.skipChar('&')) { |
|
837 |
setScannerState(SCANNER_STATE_REFERENCE); |
|
838 |
} else { |
|
839 |
setScannerState(SCANNER_STATE_CONTENT); |
|
840 |
} |
|
841 |
break; |
|
842 |
} |
|
843 |
||
844 |
case SCANNER_STATE_START_OF_MARKUP: { |
|
845 |
fMarkupDepth++; |
|
34554
20d95817d066
8072081: Supplementary characters are rejected in comments
joehw
parents:
33353
diff
changeset
|
846 |
if (isValidNameStartChar(fEntityScanner.peekChar()) || |
20d95817d066
8072081: Supplementary characters are rejected in comments
joehw
parents:
33353
diff
changeset
|
847 |
isValidNameStartHighSurrogate(fEntityScanner.peekChar())) { |
20d95817d066
8072081: Supplementary characters are rejected in comments
joehw
parents:
33353
diff
changeset
|
848 |
setScannerState(SCANNER_STATE_ROOT_ELEMENT); |
20d95817d066
8072081: Supplementary characters are rejected in comments
joehw
parents:
33353
diff
changeset
|
849 |
setDriver(fContentDriver); |
20d95817d066
8072081: Supplementary characters are rejected in comments
joehw
parents:
33353
diff
changeset
|
850 |
//from now onwards this would be handled by fContentDriver,in the same next() call |
20d95817d066
8072081: Supplementary characters are rejected in comments
joehw
parents:
33353
diff
changeset
|
851 |
return fContentDriver.next(); |
12005 | 852 |
} else if (fEntityScanner.skipChar('!')) { |
853 |
if (fEntityScanner.skipChar('-')) { |
|
854 |
if (!fEntityScanner.skipChar('-')) { |
|
855 |
reportFatalError("InvalidCommentStart", |
|
856 |
null); |
|
857 |
} |
|
858 |
setScannerState(SCANNER_STATE_COMMENT); |
|
859 |
} else if (fEntityScanner.skipString(DOCTYPE)) { |
|
860 |
setScannerState(SCANNER_STATE_DOCTYPE); |
|
861 |
Entity entity = fEntityScanner.getCurrentEntity(); |
|
862 |
if(entity instanceof Entity.ScannedEntity){ |
|
863 |
fStartPos=((Entity.ScannedEntity)entity).position; |
|
864 |
} |
|
865 |
fReadingDTD=true; |
|
866 |
if(fDTDDecl == null) |
|
867 |
fDTDDecl = new XMLStringBuffer(); |
|
868 |
fDTDDecl.append("<!DOCTYPE"); |
|
869 |
||
870 |
} else { |
|
871 |
reportFatalError("MarkupNotRecognizedInProlog", |
|
872 |
null); |
|
873 |
} |
|
34554
20d95817d066
8072081: Supplementary characters are rejected in comments
joehw
parents:
33353
diff
changeset
|
874 |
} else if (fEntityScanner.skipChar('?')) { |
20d95817d066
8072081: Supplementary characters are rejected in comments
joehw
parents:
33353
diff
changeset
|
875 |
setScannerState(SCANNER_STATE_PI); |
12005 | 876 |
} else { |
877 |
reportFatalError("MarkupNotRecognizedInProlog", |
|
878 |
null); |
|
879 |
} |
|
880 |
break; |
|
881 |
} |
|
882 |
} |
|
883 |
} while (fScannerState == SCANNER_STATE_PROLOG || fScannerState == SCANNER_STATE_START_OF_MARKUP ); |
|
884 |
||
885 |
switch(fScannerState){ |
|
886 |
/** |
|
887 |
//this part is handled by FragmentContentHandler |
|
888 |
case SCANNER_STATE_ROOT_ELEMENT: { |
|
889 |
//we have read '<' and beginning of reading the start element tag |
|
890 |
setScannerState(SCANNER_STATE_START_ELEMENT_TAG); |
|
891 |
setDriver(fContentDriver); |
|
892 |
//from now onwards this would be handled by fContentDriver,in the same next() call |
|
893 |
return fContentDriver.next(); |
|
894 |
} |
|
895 |
*/ |
|
896 |
case SCANNER_STATE_COMMENT: { |
|
897 |
//this function fills the data.. |
|
898 |
scanComment(); |
|
899 |
setScannerState(SCANNER_STATE_PROLOG); |
|
900 |
return XMLEvent.COMMENT; |
|
901 |
//setScannerState(SCANNER_STATE_PROLOG); |
|
902 |
//break; |
|
903 |
} |
|
904 |
case SCANNER_STATE_PI: { |
|
905 |
fContentBuffer.clear() ; |
|
906 |
scanPI(fContentBuffer); |
|
907 |
setScannerState(SCANNER_STATE_PROLOG); |
|
908 |
return XMLEvent.PROCESSING_INSTRUCTION; |
|
909 |
} |
|
910 |
||
911 |
case SCANNER_STATE_DOCTYPE: { |
|
13061
7dfa5735cbc2
7157610: NullPointerException occurs when parsing XML doc
joehw
parents:
12457
diff
changeset
|
912 |
if (fDisallowDoctype) { |
7dfa5735cbc2
7157610: NullPointerException occurs when parsing XML doc
joehw
parents:
12457
diff
changeset
|
913 |
reportFatalError("DoctypeNotAllowed", null); |
7dfa5735cbc2
7157610: NullPointerException occurs when parsing XML doc
joehw
parents:
12457
diff
changeset
|
914 |
} |
7dfa5735cbc2
7157610: NullPointerException occurs when parsing XML doc
joehw
parents:
12457
diff
changeset
|
915 |
|
12005 | 916 |
if (fSeenDoctypeDecl) { |
917 |
reportFatalError("AlreadySeenDoctype", null); |
|
918 |
} |
|
919 |
fSeenDoctypeDecl = true; |
|
920 |
||
921 |
// scanDoctypeDecl() sends XNI doctypeDecl event that |
|
922 |
// in SAX is converted to startDTD() event. |
|
13061
7dfa5735cbc2
7157610: NullPointerException occurs when parsing XML doc
joehw
parents:
12457
diff
changeset
|
923 |
if (scanDoctypeDecl(fSupportDTD)) { |
12005 | 924 |
//allow parsing of entity decls to continue in order to stay well-formed |
925 |
setScannerState(SCANNER_STATE_DTD_INTERNAL_DECLS); |
|
926 |
fSeenInternalSubset = true; |
|
927 |
if(fDTDDriver == null){ |
|
928 |
fDTDDriver = new DTDDriver(); |
|
929 |
} |
|
930 |
setDriver(fContentDriver); |
|
931 |
//always return DTD event, the event however, will not contain any entities |
|
932 |
return fDTDDriver.next(); |
|
933 |
} |
|
934 |
||
935 |
if(fSeenDoctypeDecl){ |
|
936 |
Entity entity = fEntityScanner.getCurrentEntity(); |
|
937 |
if(entity instanceof Entity.ScannedEntity){ |
|
938 |
fEndPos = ((Entity.ScannedEntity)entity).position; |
|
939 |
} |
|
940 |
fReadingDTD = false; |
|
941 |
} |
|
942 |
||
943 |
// handle external subset |
|
944 |
if (fDoctypeSystemId != null) { |
|
945 |
if (((fValidation || fLoadExternalDTD) |
|
946 |
&& (fValidationManager == null || !fValidationManager.isCachedDTD()))) { |
|
17534 | 947 |
if (fSupportDTD) { |
948 |
setScannerState(SCANNER_STATE_DTD_EXTERNAL); |
|
949 |
} else { |
|
950 |
setScannerState(SCANNER_STATE_PROLOG); |
|
951 |
} |
|
12005 | 952 |
|
17534 | 953 |
setDriver(fContentDriver); |
954 |
if(fDTDDriver == null) { |
|
955 |
fDTDDriver = new DTDDriver(); |
|
956 |
} |
|
957 |
||
958 |
return fDTDDriver.next(); |
|
12005 | 959 |
} |
960 |
} |
|
961 |
else if (fExternalSubsetSource != null) { |
|
962 |
if (((fValidation || fLoadExternalDTD) |
|
963 |
&& (fValidationManager == null || !fValidationManager.isCachedDTD()))) { |
|
964 |
// This handles the case of a DOCTYPE that had neither an internal subset or an external subset. |
|
965 |
fDTDScanner.setInputSource(fExternalSubsetSource); |
|
966 |
fExternalSubsetSource = null; |
|
13061
7dfa5735cbc2
7157610: NullPointerException occurs when parsing XML doc
joehw
parents:
12457
diff
changeset
|
967 |
if (fSupportDTD) |
12005 | 968 |
setScannerState(SCANNER_STATE_DTD_EXTERNAL_DECLS); |
969 |
else |
|
970 |
setScannerState(SCANNER_STATE_PROLOG); |
|
971 |
setDriver(fContentDriver); |
|
972 |
if(fDTDDriver == null) |
|
973 |
fDTDDriver = new DTDDriver(); |
|
974 |
return fDTDDriver.next(); |
|
975 |
} |
|
976 |
} |
|
977 |
||
978 |
// Send endDTD() call if: |
|
979 |
// a) systemId is null or if an external subset resolver could not locate an external subset. |
|
980 |
// b) "load-external-dtd" and validation are false |
|
981 |
// c) DTD grammar is cached |
|
982 |
||
983 |
// in XNI this results in 3 events: doctypeDecl, startDTD, endDTD |
|
984 |
// in SAX this results in 2 events: startDTD, endDTD |
|
985 |
if (fDTDScanner != null) { |
|
986 |
fDTDScanner.setInputSource(null); |
|
987 |
} |
|
988 |
setScannerState(SCANNER_STATE_PROLOG); |
|
989 |
return XMLEvent.DTD; |
|
990 |
} |
|
991 |
||
992 |
case SCANNER_STATE_CONTENT: { |
|
993 |
reportFatalError("ContentIllegalInProlog", null); |
|
994 |
fEntityScanner.scanChar(); |
|
995 |
} |
|
996 |
case SCANNER_STATE_REFERENCE: { |
|
997 |
reportFatalError("ReferenceIllegalInProlog", null); |
|
998 |
} |
|
999 |
||
1000 |
/** |
|
1001 |
* if (complete) { |
|
1002 |
* if (fEntityScanner.scanChar() != '<') { |
|
1003 |
* reportFatalError("RootElementRequired", null); |
|
1004 |
* } |
|
1005 |
* setScannerState(SCANNER_STATE_ROOT_ELEMENT); |
|
1006 |
* setDriver(fContentDriver); |
|
1007 |
* } |
|
1008 |
*/ |
|
1009 |
} |
|
1010 |
} |
|
1011 |
// premature end of file |
|
1012 |
catch (EOFException e) { |
|
1013 |
reportFatalError("PrematureEOF", null); |
|
1014 |
//xxx what should be returned here.... ??? |
|
1015 |
return -1 ; |
|
1016 |
//throw e; |
|
1017 |
} |
|
1018 |
//xxx what should be returned here.... ??? |
|
1019 |
return -1; |
|
1020 |
||
1021 |
} |
|
1022 |
||
1023 |
||
1024 |
} // class PrologDriver |
|
1025 |
||
1026 |
/** |
|
1027 |
* Driver to handle the internal and external DTD subsets. |
|
1028 |
* |
|
1029 |
* @author Andy Clark, IBM |
|
1030 |
*/ |
|
1031 |
protected final class DTDDriver |
|
1032 |
implements Driver { |
|
1033 |
||
1034 |
// |
|
1035 |
// Driver methods |
|
1036 |
// |
|
1037 |
||
1038 |
public int next() throws IOException, XNIException{ |
|
1039 |
// throw new XNIException("DTD Parsing is currently not supported"); |
|
1040 |
if(DEBUG_NEXT){ |
|
1041 |
System.out.println("Now in DTD Driver"); |
|
1042 |
} |
|
1043 |
||
1044 |
dispatch(true); |
|
1045 |
||
1046 |
if(DEBUG_NEXT){ |
|
1047 |
System.out.println("After calling dispatch(true) -- At this point whole DTD is read."); |
|
1048 |
} |
|
1049 |
||
1050 |
//xxx: remove this hack and align this with reusing DTD components |
|
1051 |
//currently this routine will only be executed from Stax |
|
1052 |
if(fPropertyManager != null){ |
|
1053 |
dtdGrammarUtil = new DTDGrammarUtil(((XMLDTDScannerImpl)fDTDScanner).getGrammar(),fSymbolTable, fNamespaceContext); |
|
1054 |
} |
|
1055 |
||
1056 |
return XMLEvent.DTD ; |
|
1057 |
} |
|
1058 |
||
1059 |
/** |
|
1060 |
* Dispatch an XML "event". |
|
1061 |
* |
|
1062 |
* @param complete True if this driver is intended to scan |
|
1063 |
* and dispatch as much as possible. |
|
1064 |
* |
|
1065 |
* @return True if there is more to dispatch either from this |
|
1066 |
* or a another driver. |
|
1067 |
* |
|
1068 |
* @throws IOException Thrown on i/o error. |
|
1069 |
* @throws XNIException Thrown on parse error. |
|
1070 |
*/ |
|
1071 |
public boolean dispatch(boolean complete) |
|
1072 |
throws IOException, XNIException { |
|
1073 |
fEntityManager.setEntityHandler(null); |
|
1074 |
try { |
|
1075 |
boolean again; |
|
1076 |
XMLResourceIdentifierImpl resourceIdentifier = new XMLResourceIdentifierImpl(); |
|
1077 |
if( fDTDScanner == null){ |
|
1078 |
||
1079 |
if (fEntityManager.getEntityScanner() instanceof XML11EntityScanner){ |
|
1080 |
fDTDScanner = new XML11DTDScannerImpl(); |
|
1081 |
} else |
|
1082 |
||
1083 |
fDTDScanner = new XMLDTDScannerImpl(); |
|
1084 |
||
1085 |
((XMLDTDScannerImpl)fDTDScanner).reset(fPropertyManager); |
|
1086 |
} |
|
22418
1ee8fd0184d1
8028111: XML readers share the same entity expansion counter
joehw
parents:
22139
diff
changeset
|
1087 |
|
1ee8fd0184d1
8028111: XML readers share the same entity expansion counter
joehw
parents:
22139
diff
changeset
|
1088 |
fDTDScanner.setLimitAnalyzer(fLimitAnalyzer); |
12005 | 1089 |
do { |
1090 |
again = false; |
|
1091 |
switch (fScannerState) { |
|
1092 |
case SCANNER_STATE_DTD_INTERNAL_DECLS: { |
|
33353 | 1093 |
boolean moreToScan = false; |
1094 |
if (!fDTDScanner.skipDTD(fSupportDTD)) { |
|
1095 |
// REVISIT: Should there be a feature for |
|
1096 |
// the "complete" parameter? |
|
1097 |
boolean completeDTD = true; |
|
12005 | 1098 |
|
33353 | 1099 |
moreToScan = fDTDScanner.scanDTDInternalSubset(completeDTD, fStandalone, fHasExternalDTD && fLoadExternalDTD); |
1100 |
} |
|
12005 | 1101 |
Entity entity = fEntityScanner.getCurrentEntity(); |
1102 |
if(entity instanceof Entity.ScannedEntity){ |
|
1103 |
fEndPos=((Entity.ScannedEntity)entity).position; |
|
1104 |
} |
|
1105 |
fReadingDTD=false; |
|
1106 |
if (!moreToScan) { |
|
1107 |
// end doctype declaration |
|
1108 |
if (!fEntityScanner.skipChar(']')) { |
|
1109 |
reportFatalError("EXPECTED_SQUARE_BRACKET_TO_CLOSE_INTERNAL_SUBSET", |
|
1110 |
null); |
|
1111 |
} |
|
1112 |
fEntityScanner.skipSpaces(); |
|
1113 |
if (!fEntityScanner.skipChar('>')) { |
|
1114 |
reportFatalError("DoctypedeclUnterminated", new Object[]{fDoctypeName}); |
|
1115 |
} |
|
1116 |
fMarkupDepth--; |
|
1117 |
||
13061
7dfa5735cbc2
7157610: NullPointerException occurs when parsing XML doc
joehw
parents:
12457
diff
changeset
|
1118 |
if (!fSupportDTD) { |
12005 | 1119 |
//simply reset the entity store without having to mess around |
1120 |
//with the DTD Scanner code |
|
1121 |
fEntityStore = fEntityManager.getEntityStore(); |
|
1122 |
fEntityStore.reset(); |
|
1123 |
} else { |
|
1124 |
// scan external subset next unless we are ignoring DTDs |
|
1125 |
if (fDoctypeSystemId != null && (fValidation || fLoadExternalDTD)) { |
|
1126 |
setScannerState(SCANNER_STATE_DTD_EXTERNAL); |
|
1127 |
break; |
|
1128 |
} |
|
1129 |
} |
|
1130 |
||
1131 |
setEndDTDScanState(); |
|
1132 |
return true; |
|
1133 |
||
1134 |
} |
|
1135 |
break; |
|
1136 |
} |
|
1137 |
case SCANNER_STATE_DTD_EXTERNAL: { |
|
1138 |
/** |
|
1139 |
fDTDDescription.setValues(fDoctypePublicId, fDoctypeSystemId, null, null); |
|
1140 |
fDTDDescription.setRootName(fDoctypeName); |
|
1141 |
XMLInputSource xmlInputSource = |
|
1142 |
fEntityManager.resolveEntity(fDTDDescription); |
|
1143 |
fDTDScanner.setInputSource(xmlInputSource); |
|
1144 |
setScannerState(SCANNER_STATE_DTD_EXTERNAL_DECLS); |
|
1145 |
again = true; |
|
1146 |
break; |
|
1147 |
*/ |
|
1148 |
||
1149 |
resourceIdentifier.setValues(fDoctypePublicId, fDoctypeSystemId, null, null); |
|
1150 |
XMLInputSource xmlInputSource = null ; |
|
1151 |
StaxXMLInputSource staxInputSource = fEntityManager.resolveEntityAsPerStax(resourceIdentifier); |
|
17534 | 1152 |
|
1153 |
// Check access permission. If the source is resolved by a resolver, the check is skipped. |
|
35333
1a6e1fdb7c5e
8147051: StaxEntityResolverWrapper should create StaxXMLInputSource with a resolver indicator
joehw
parents:
34554
diff
changeset
|
1154 |
if (!staxInputSource.isCreatedByResolver()) { |
17534 | 1155 |
String accessError = checkAccess(fDoctypeSystemId, fAccessExternalDTD); |
1156 |
if (accessError != null) { |
|
1157 |
reportFatalError("AccessExternalDTD", new Object[]{ SecuritySupport.sanitizePath(fDoctypeSystemId), accessError }); |
|
1158 |
} |
|
1159 |
} |
|
12005 | 1160 |
xmlInputSource = staxInputSource.getXMLInputSource(); |
1161 |
fDTDScanner.setInputSource(xmlInputSource); |
|
17534 | 1162 |
if (fEntityScanner.fCurrentEntity != null) { |
1163 |
setScannerState(SCANNER_STATE_DTD_EXTERNAL_DECLS); |
|
1164 |
} else { |
|
1165 |
setScannerState(SCANNER_STATE_PROLOG); |
|
1166 |
} |
|
12005 | 1167 |
again = true; |
1168 |
break; |
|
1169 |
} |
|
1170 |
case SCANNER_STATE_DTD_EXTERNAL_DECLS: { |
|
1171 |
// REVISIT: Should there be a feature for |
|
1172 |
// the "complete" parameter? |
|
1173 |
boolean completeDTD = true; |
|
1174 |
boolean moreToScan = fDTDScanner.scanDTDExternalSubset(completeDTD); |
|
1175 |
if (!moreToScan) { |
|
1176 |
setEndDTDScanState(); |
|
1177 |
return true; |
|
1178 |
} |
|
1179 |
break; |
|
1180 |
} |
|
1181 |
case SCANNER_STATE_PROLOG : { |
|
1182 |
// skip entity decls |
|
1183 |
setEndDTDScanState(); |
|
1184 |
return true; |
|
1185 |
} |
|
1186 |
default: { |
|
1187 |
throw new XNIException("DTDDriver#dispatch: scanner state="+fScannerState+" ("+getScannerStateName(fScannerState)+')'); |
|
1188 |
} |
|
1189 |
} |
|
1190 |
} while (complete || again); |
|
1191 |
} |
|
1192 |
||
1193 |
// premature end of file |
|
1194 |
catch (EOFException e) { |
|
1195 |
e.printStackTrace(); |
|
1196 |
reportFatalError("PrematureEOF", null); |
|
1197 |
return false; |
|
1198 |
//throw e; |
|
1199 |
} |
|
1200 |
||
1201 |
// cleanup |
|
1202 |
finally { |
|
1203 |
fEntityManager.setEntityHandler(XMLDocumentScannerImpl.this); |
|
1204 |
} |
|
1205 |
||
1206 |
return true; |
|
1207 |
||
1208 |
} |
|
1209 |
||
1210 |
// dispatch(boolean):boolean |
|
1211 |
||
1212 |
} // class DTDDriver |
|
1213 |
||
1214 |
/** |
|
1215 |
* Driver to handle content scanning. |
|
1216 |
* |
|
1217 |
* @author Andy Clark, IBM |
|
1218 |
* @author Eric Ye, IBM |
|
1219 |
*/ |
|
1220 |
protected class ContentDriver |
|
1221 |
extends FragmentContentDriver { |
|
1222 |
||
1223 |
// |
|
1224 |
// Protected methods |
|
1225 |
// |
|
1226 |
||
1227 |
// hooks |
|
1228 |
||
1229 |
// NOTE: These hook methods are added so that the full document |
|
1230 |
// scanner can share the majority of code with this class. |
|
1231 |
||
1232 |
/** |
|
1233 |
* Scan for DOCTYPE hook. This method is a hook for subclasses |
|
1234 |
* to add code to handle scanning for a the "DOCTYPE" string |
|
1235 |
* after the string "<!" has been scanned. |
|
1236 |
* |
|
1237 |
* @return True if the "DOCTYPE" was scanned; false if "DOCTYPE" |
|
1238 |
* was not scanned. |
|
1239 |
*/ |
|
1240 |
protected boolean scanForDoctypeHook() |
|
1241 |
throws IOException, XNIException { |
|
1242 |
||
1243 |
if (fEntityScanner.skipString(DOCTYPE)) { |
|
1244 |
setScannerState(SCANNER_STATE_DOCTYPE); |
|
1245 |
// fEntityScanner.markStartOfDTD(); |
|
1246 |
return true; |
|
1247 |
} |
|
1248 |
return false; |
|
1249 |
||
1250 |
} // scanForDoctypeHook():boolean |
|
1251 |
||
1252 |
/** |
|
1253 |
* Element depth iz zero. This methos is a hook for subclasses |
|
1254 |
* to add code to handle when the element depth hits zero. When |
|
1255 |
* scanning a document fragment, an element depth of zero is |
|
1256 |
* normal. However, when scanning a full XML document, the |
|
1257 |
* scanner must handle the trailing miscellanous section of |
|
1258 |
* the document after the end of the document's root element. |
|
1259 |
* |
|
1260 |
* @return True if the caller should stop and return true which |
|
1261 |
* allows the scanner to switch to a new scanning |
|
1262 |
* driver. A return value of false indicates that |
|
1263 |
* the content driver should continue as normal. |
|
1264 |
*/ |
|
1265 |
protected boolean elementDepthIsZeroHook() |
|
1266 |
throws IOException, XNIException { |
|
1267 |
||
1268 |
setScannerState(SCANNER_STATE_TRAILING_MISC); |
|
1269 |
setDriver(fTrailingMiscDriver); |
|
1270 |
return true; |
|
1271 |
||
1272 |
} // elementDepthIsZeroHook():boolean |
|
1273 |
||
1274 |
/** |
|
1275 |
* Scan for root element hook. This method is a hook for |
|
1276 |
* subclasses to add code that handles scanning for the root |
|
1277 |
* element. When scanning a document fragment, there is no |
|
1278 |
* "root" element. However, when scanning a full XML document, |
|
1279 |
* the scanner must handle the root element specially. |
|
1280 |
* |
|
1281 |
* @return True if the caller should stop and return true which |
|
1282 |
* allows the scanner to switch to a new scanning |
|
1283 |
* driver. A return value of false indicates that |
|
1284 |
* the content driver should continue as normal. |
|
1285 |
*/ |
|
1286 |
protected boolean scanRootElementHook() |
|
1287 |
throws IOException, XNIException { |
|
1288 |
||
1289 |
if (scanStartElement()) { |
|
1290 |
setScannerState(SCANNER_STATE_TRAILING_MISC); |
|
1291 |
setDriver(fTrailingMiscDriver); |
|
1292 |
return true; |
|
1293 |
} |
|
1294 |
return false; |
|
1295 |
||
1296 |
} // scanRootElementHook():boolean |
|
1297 |
||
1298 |
/** |
|
1299 |
* End of file hook. This method is a hook for subclasses to |
|
1300 |
* add code that handles the end of file. The end of file in |
|
1301 |
* a document fragment is OK if the markup depth is zero. |
|
1302 |
* However, when scanning a full XML document, an end of file |
|
1303 |
* is always premature. |
|
1304 |
*/ |
|
1305 |
protected void endOfFileHook(EOFException e) |
|
1306 |
throws IOException, XNIException { |
|
1307 |
||
1308 |
reportFatalError("PrematureEOF", null); |
|
1309 |
// in case continue-after-fatal-error set, should not do this... |
|
1310 |
//throw e; |
|
1311 |
||
1312 |
} // endOfFileHook() |
|
1313 |
||
1314 |
protected void resolveExternalSubsetAndRead() |
|
1315 |
throws IOException, XNIException { |
|
1316 |
||
1317 |
fDTDDescription.setValues(null, null, fEntityManager.getCurrentResourceIdentifier().getExpandedSystemId(), null); |
|
1318 |
fDTDDescription.setRootName(fElementQName.rawname); |
|
1319 |
XMLInputSource src = fExternalSubsetResolver.getExternalSubset(fDTDDescription); |
|
1320 |
||
1321 |
if (src != null) { |
|
1322 |
fDoctypeName = fElementQName.rawname; |
|
1323 |
fDoctypePublicId = src.getPublicId(); |
|
1324 |
fDoctypeSystemId = src.getSystemId(); |
|
1325 |
// call document handler |
|
1326 |
if (fDocumentHandler != null) { |
|
1327 |
// This inserts a doctypeDecl event into the stream though no |
|
1328 |
// DOCTYPE existed in the instance document. |
|
1329 |
fDocumentHandler.doctypeDecl(fDoctypeName, fDoctypePublicId, fDoctypeSystemId, null); |
|
1330 |
} |
|
1331 |
try { |
|
1332 |
fDTDScanner.setInputSource(src); |
|
1333 |
while (fDTDScanner.scanDTDExternalSubset(true)); |
|
1334 |
} finally { |
|
1335 |
fEntityManager.setEntityHandler(XMLDocumentScannerImpl.this); |
|
1336 |
} |
|
1337 |
} |
|
1338 |
} // resolveExternalSubsetAndRead() |
|
1339 |
||
1340 |
||
1341 |
||
1342 |
} // class ContentDriver |
|
1343 |
||
1344 |
/** |
|
1345 |
* Driver to handle trailing miscellaneous section scanning. |
|
1346 |
* |
|
1347 |
* @author Andy Clark, IBM |
|
1348 |
* @author Eric Ye, IBM |
|
1349 |
*/ |
|
1350 |
protected final class TrailingMiscDriver |
|
1351 |
implements Driver { |
|
1352 |
||
1353 |
// |
|
1354 |
// Driver methods |
|
1355 |
// |
|
1356 |
public int next() throws IOException, XNIException{ |
|
1357 |
//this could for cases like <foo/> |
|
1358 |
//look at scanRootElementHook |
|
1359 |
if(fEmptyElement){ |
|
1360 |
fEmptyElement = false; |
|
1361 |
return XMLEvent.END_ELEMENT; |
|
1362 |
} |
|
1363 |
||
1364 |
try { |
|
1365 |
if(fScannerState == SCANNER_STATE_TERMINATED){ |
|
1366 |
return XMLEvent.END_DOCUMENT ;} |
|
1367 |
do { |
|
1368 |
switch (fScannerState) { |
|
1369 |
case SCANNER_STATE_TRAILING_MISC: { |
|
1370 |
||
1371 |
fEntityScanner.skipSpaces(); |
|
1372 |
//we should have reached the end of the document in |
|
1373 |
//most cases. |
|
1374 |
if(fScannerState == SCANNER_STATE_TERMINATED ){ |
|
1375 |
return XMLEvent.END_DOCUMENT ; |
|
1376 |
} |
|
1377 |
if (fEntityScanner.skipChar('<')) { |
|
1378 |
setScannerState(SCANNER_STATE_START_OF_MARKUP); |
|
1379 |
} else { |
|
1380 |
setScannerState(SCANNER_STATE_CONTENT); |
|
1381 |
} |
|
1382 |
break; |
|
1383 |
} |
|
1384 |
case SCANNER_STATE_START_OF_MARKUP: { |
|
1385 |
fMarkupDepth++; |
|
1386 |
if (fEntityScanner.skipChar('?')) { |
|
1387 |
setScannerState(SCANNER_STATE_PI); |
|
1388 |
} else if (fEntityScanner.skipChar('!')) { |
|
1389 |
setScannerState(SCANNER_STATE_COMMENT); |
|
1390 |
} else if (fEntityScanner.skipChar('/')) { |
|
1391 |
reportFatalError("MarkupNotRecognizedInMisc", |
|
1392 |
null); |
|
34554
20d95817d066
8072081: Supplementary characters are rejected in comments
joehw
parents:
33353
diff
changeset
|
1393 |
} else if (isValidNameStartChar(fEntityScanner.peekChar()) || |
20d95817d066
8072081: Supplementary characters are rejected in comments
joehw
parents:
33353
diff
changeset
|
1394 |
isValidNameStartHighSurrogate(fEntityScanner.peekChar())) { |
12005 | 1395 |
reportFatalError("MarkupNotRecognizedInMisc", |
1396 |
null); |
|
1397 |
scanStartElement(); |
|
1398 |
setScannerState(SCANNER_STATE_CONTENT); |
|
1399 |
} else { |
|
1400 |
reportFatalError("MarkupNotRecognizedInMisc", |
|
1401 |
null); |
|
1402 |
} |
|
1403 |
break; |
|
1404 |
} |
|
1405 |
} |
|
1406 |
}while(fScannerState == SCANNER_STATE_START_OF_MARKUP || fScannerState == SCANNER_STATE_TRAILING_MISC); |
|
1407 |
if(DEBUG_NEXT){ |
|
1408 |
System.out.println("State set by deciding while loop [TrailingMiscellaneous] is = " + getScannerStateName(fScannerState)); |
|
1409 |
} |
|
1410 |
switch (fScannerState){ |
|
1411 |
case SCANNER_STATE_PI: { |
|
1412 |
fContentBuffer.clear(); |
|
1413 |
scanPI(fContentBuffer); |
|
1414 |
setScannerState(SCANNER_STATE_TRAILING_MISC); |
|
1415 |
return XMLEvent.PROCESSING_INSTRUCTION ; |
|
1416 |
} |
|
1417 |
case SCANNER_STATE_COMMENT: { |
|
1418 |
if (!fEntityScanner.skipString(COMMENTSTRING)) { |
|
1419 |
reportFatalError("InvalidCommentStart", null); |
|
1420 |
} |
|
1421 |
scanComment(); |
|
1422 |
setScannerState(SCANNER_STATE_TRAILING_MISC); |
|
1423 |
return XMLEvent.COMMENT; |
|
1424 |
} |
|
1425 |
case SCANNER_STATE_CONTENT: { |
|
1426 |
int ch = fEntityScanner.peekChar(); |
|
1427 |
if (ch == -1) { |
|
1428 |
setScannerState(SCANNER_STATE_TERMINATED); |
|
1429 |
return XMLEvent.END_DOCUMENT ; |
|
1430 |
} else{ |
|
1431 |
reportFatalError("ContentIllegalInTrailingMisc", |
|
1432 |
null); |
|
1433 |
fEntityScanner.scanChar(); |
|
1434 |
setScannerState(SCANNER_STATE_TRAILING_MISC); |
|
1435 |
return XMLEvent.CHARACTERS; |
|
1436 |
} |
|
1437 |
||
1438 |
} |
|
1439 |
case SCANNER_STATE_REFERENCE: { |
|
1440 |
reportFatalError("ReferenceIllegalInTrailingMisc", |
|
1441 |
null); |
|
1442 |
setScannerState(SCANNER_STATE_TRAILING_MISC); |
|
1443 |
return XMLEvent.ENTITY_REFERENCE ; |
|
1444 |
} |
|
1445 |
case SCANNER_STATE_TERMINATED: { |
|
1446 |
//there can't be any element after SCANNER_STATE_TERMINATED or when the parser |
|
1447 |
//has reached the end of document |
|
1448 |
setScannerState(SCANNER_STATE_NO_SUCH_ELEMENT_EXCEPTION); |
|
1449 |
//xxx what to do when the scanner has reached the terminating state. |
|
1450 |
return XMLEvent.END_DOCUMENT ; |
|
1451 |
} |
|
1452 |
case SCANNER_STATE_NO_SUCH_ELEMENT_EXCEPTION:{ |
|
1453 |
throw new java.util.NoSuchElementException("No more events to be parsed"); |
|
1454 |
} |
|
1455 |
default: throw new XNIException("Scanner State " + fScannerState + " not Recognized "); |
|
1456 |
}//switch |
|
1457 |
||
1458 |
} catch (EOFException e) { |
|
1459 |
// NOTE: This is the only place we're allowed to reach |
|
1460 |
// the real end of the document stream. Unless the |
|
1461 |
// end of file was reached prematurely. |
|
1462 |
if (fMarkupDepth != 0) { |
|
1463 |
reportFatalError("PrematureEOF", null); |
|
1464 |
return -1; |
|
1465 |
//throw e; |
|
1466 |
} |
|
1467 |
//System.out.println("EOFException thrown") ; |
|
1468 |
setScannerState(SCANNER_STATE_TERMINATED); |
|
1469 |
} |
|
1470 |
||
1471 |
return XMLEvent.END_DOCUMENT; |
|
1472 |
||
1473 |
}//next |
|
1474 |
||
1475 |
} // class TrailingMiscDriver |
|
1476 |
||
1477 |
/** |
|
1478 |
* Implements XMLBufferListener interface. |
|
1479 |
*/ |
|
1480 |
||
1481 |
||
1482 |
/** |
|
1483 |
* receives callbacks from {@link XMLEntityReader } when buffer |
|
1484 |
* is being changed. |
|
1485 |
* @param refreshPosition |
|
1486 |
*/ |
|
1487 |
public void refresh(int refreshPosition){ |
|
1488 |
super.refresh(refreshPosition); |
|
1489 |
if(fReadingDTD){ |
|
1490 |
Entity entity = fEntityScanner.getCurrentEntity(); |
|
1491 |
if(entity instanceof Entity.ScannedEntity){ |
|
1492 |
fEndPos=((Entity.ScannedEntity)entity).position; |
|
1493 |
} |
|
1494 |
fDTDDecl.append(((Entity.ScannedEntity)entity).ch,fStartPos , fEndPos-fStartPos); |
|
1495 |
fStartPos = refreshPosition; |
|
1496 |
} |
|
1497 |
} |
|
1498 |
||
1499 |
} // class XMLDocumentScannerImpl |