jdk8-mips64-public/jaxws: src/share/jaxws_classes/com/sun/xml/internal/stream/buffer/stax/StreamReaderBufferCreator.java@9c07ef4934dd

     1 /*

     2  * Copyright (c) 2005, 2013, 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  */

    26 package com.sun.xml.internal.stream.buffer.stax;

    28 import com.sun.xml.internal.stream.buffer.MutableXMLStreamBuffer;

    29 import com.sun.xml.internal.org.jvnet.staxex.Base64Data;

    30 import com.sun.xml.internal.org.jvnet.staxex.XMLStreamReaderEx;

    32 import javax.xml.stream.XMLStreamException;

    33 import javax.xml.stream.XMLStreamReader;

    34 import java.util.HashMap;

    35 import java.util.Map;

    37 /**

    38  * Create a buffer using an {@link XMLStreamReader}.

    39  * <p>

    40  * TODO: Implement the marking the stream on the element when an ID

    41  * attribute on the element is defined

    42  */

    43 public class StreamReaderBufferCreator extends StreamBufferCreator {

    44     private int _eventType;

    45     private boolean _storeInScopeNamespacesOnElementFragment;

    46     private Map<String, Integer> _inScopePrefixes;

    48     /**

    49      * Create a stream reader buffer creator.

    50      * <p>

    51      * A stream buffer will be created for storing the infoset

    52      * from a stream reader.

    53      */

    54     public StreamReaderBufferCreator() {

    55     }

    57     /**

    58      * Create a stream reader buffer creator using a mutable stream buffer.

    59      * <p>

    60      * @param buffer the mutable stream buffer.

    61      */

    62     public StreamReaderBufferCreator(MutableXMLStreamBuffer buffer) {

    63         setBuffer(buffer);

    64     }

    66     /**

    67      * Create the buffer from a stream reader.

    68      * <p>

    69      * The stream reader must be positioned at the start of the document

    70      * or the start of an element.

    71      * <p>

    72      * If the stream is positioned at the start of the document then the

    73      * whole document is stored and after storing the stream will be positioned

    74      * at the end of the document.

    75      * <p>

    76      * If the stream is positioned at the start of an element then the

    77      * element and all its children will be stored and after storing the stream

    78      * will be positioned at the next event after the end of the element.

    79      * <p>

    80      * @return the mutable stream buffer.

    81      * @throws XMLStreamException if the stream reader is not positioned at

    82      *         the start of the document or at an element.

    83      */

    84     public MutableXMLStreamBuffer create(XMLStreamReader reader) throws XMLStreamException {

    85         if (_buffer == null) {

    86             createBuffer();

    87         }

    88         store(reader);

    90         return getXMLStreamBuffer();

    91     }

    93     /**

    94      * Creates the buffer from a stream reader that is an element fragment.

    95      * <p>

    96      * The stream reader will be moved to the position of the next start of

    97      * an element if the stream reader is not already positioned at the start

    98      * of an element.

    99      * <p>

   100      * The element and all its children will be stored and after storing the stream

   101      * will be positioned at the next event after the end of the element.

   102      * <p>

   103      * @param storeInScopeNamespaces true if in-scope namespaces of the element

   104      *        fragment should be stored.

   105      * @return the mutable stream buffer.

   106      * @throws XMLStreamException if the stream reader cannot be positioned at

   107      *         the start of an element.

   108      */

   109     public MutableXMLStreamBuffer createElementFragment(XMLStreamReader reader,

   110             boolean storeInScopeNamespaces) throws XMLStreamException {

   111         if (_buffer == null) {

   112             createBuffer();

   113         }

   115         if (!reader.hasNext()) {

   116             return _buffer;

   117         }

   119         _storeInScopeNamespacesOnElementFragment = storeInScopeNamespaces;

   121         _eventType = reader.getEventType();

   122         if (_eventType != XMLStreamReader.START_ELEMENT) {

   123             do {

   124                 _eventType = reader.next();

   125             } while(_eventType != XMLStreamReader.START_ELEMENT && _eventType != XMLStreamReader.END_DOCUMENT);

   126         }

   128         if (storeInScopeNamespaces) {

   129             _inScopePrefixes = new HashMap<String,Integer>();

   130         }

   132         storeElementAndChildren(reader);

   134         return getXMLStreamBuffer();

   135     }

   137     private void store(XMLStreamReader reader) throws XMLStreamException {

   138         if (!reader.hasNext()) {

   139             return;

   140         }

   142         _eventType = reader.getEventType();

   143         switch (_eventType) {

   144             case XMLStreamReader.START_DOCUMENT:

   145                 storeDocumentAndChildren(reader);

   146                 break;

   147             case XMLStreamReader.START_ELEMENT:

   148                 storeElementAndChildren(reader);

   149                 break;

   150             default:

   151                 throw new XMLStreamException("XMLStreamReader not positioned at a document or element");

   152         }

   154         increaseTreeCount();

   155     }

   157     private void storeDocumentAndChildren(XMLStreamReader reader) throws XMLStreamException {

   158         storeStructure(T_DOCUMENT);

   160         _eventType = reader.next();

   161         while (_eventType != XMLStreamReader.END_DOCUMENT) {

   162             switch (_eventType) {

   163                 case XMLStreamReader.START_ELEMENT:

   164                     storeElementAndChildren(reader);

   165                     continue;

   166                 case XMLStreamReader.COMMENT:

   167                     storeComment(reader);

   168                     break;

   169                 case XMLStreamReader.PROCESSING_INSTRUCTION:

   170                     storeProcessingInstruction(reader);

   171                     break;

   172             }

   173             _eventType = reader.next();

   174         }

   176         storeStructure(T_END);

   177     }

   179     private void storeElementAndChildren(XMLStreamReader reader) throws XMLStreamException {

   180         if (reader instanceof XMLStreamReaderEx) {

   181             storeElementAndChildrenEx((XMLStreamReaderEx)reader);

   182         } else {

   183             storeElementAndChildrenNoEx(reader);

   184         }

   185     }

   187     private void storeElementAndChildrenEx(XMLStreamReaderEx reader) throws XMLStreamException {

   188         int depth = 1;

   189         if (_storeInScopeNamespacesOnElementFragment) {

   190             storeElementWithInScopeNamespaces(reader);

   191         } else {

   192             storeElement(reader);

   193         }

   195         while(depth > 0) {

   196             _eventType = reader.next();

   197             switch (_eventType) {

   198                 case XMLStreamReader.START_ELEMENT:

   199                     depth++;

   200                     storeElement(reader);

   201                     break;

   202                 case XMLStreamReader.END_ELEMENT:

   203                     depth--;

   204                     storeStructure(T_END);

   205                     break;

   206                 case XMLStreamReader.NAMESPACE:

   207                     storeNamespaceAttributes(reader);

   208                     break;

   209                 case XMLStreamReader.ATTRIBUTE:

   210                     storeAttributes(reader);

   211                     break;

   212                 case XMLStreamReader.SPACE:

   213                 case XMLStreamReader.CHARACTERS:

   214                 case XMLStreamReader.CDATA: {

   215                     CharSequence c = reader.getPCDATA();

   216                     if (c instanceof Base64Data) {

   217                         storeStructure(T_TEXT_AS_OBJECT);

   218                         //Instead of clone the Base64Data, the original Base64Data instance is used here to preserve the DataHandler

   219                         storeContentObject(c);

   220                     } else {

   221                         storeContentCharacters(T_TEXT_AS_CHAR_ARRAY,

   222                                 reader.getTextCharacters(), reader.getTextStart(),

   223                                 reader.getTextLength());

   224                     }

   225                     break;

   226                 }

   227                 case XMLStreamReader.COMMENT:

   228                     storeComment(reader);

   229                     break;

   230                 case XMLStreamReader.PROCESSING_INSTRUCTION:

   231                     storeProcessingInstruction(reader);

   232                     break;

   233             }

   234         }

   236         /*

   237          * Move to next item after the end of the element

   238          * that has been stored

   239          */

   240         _eventType = reader.next();

   241     }

   243     private void storeElementAndChildrenNoEx(XMLStreamReader reader) throws XMLStreamException {

   244         int depth = 1;

   245         if (_storeInScopeNamespacesOnElementFragment) {

   246             storeElementWithInScopeNamespaces(reader);

   247         } else {

   248             storeElement(reader);

   249         }

   251         while(depth > 0) {

   252             _eventType = reader.next();

   253             switch (_eventType) {

   254                 case XMLStreamReader.START_ELEMENT:

   255                     depth++;

   256                     storeElement(reader);

   257                     break;

   258                 case XMLStreamReader.END_ELEMENT:

   259                     depth--;

   260                     storeStructure(T_END);

   261                     break;

   262                 case XMLStreamReader.NAMESPACE:

   263                     storeNamespaceAttributes(reader);

   264                     break;

   265                 case XMLStreamReader.ATTRIBUTE:

   266                     storeAttributes(reader);

   267                     break;

   268                 case XMLStreamReader.SPACE:

   269                 case XMLStreamReader.CHARACTERS:

   270                 case XMLStreamReader.CDATA: {

   271                     storeContentCharacters(T_TEXT_AS_CHAR_ARRAY,

   272                             reader.getTextCharacters(), reader.getTextStart(),

   273                             reader.getTextLength());

   274                     break;

   275                 }

   276                 case XMLStreamReader.COMMENT:

   277                     storeComment(reader);

   278                     break;

   279                 case XMLStreamReader.PROCESSING_INSTRUCTION:

   280                     storeProcessingInstruction(reader);

   281                     break;

   282             }

   283         }

   285         /*

   286          * Move to next item after the end of the element

   287          * that has been stored

   288          */

   289         _eventType = reader.next();

   290     }

   292     private void storeElementWithInScopeNamespaces(XMLStreamReader reader) {

   293         storeQualifiedName(T_ELEMENT_LN,

   294                 reader.getPrefix(), reader.getNamespaceURI(), reader.getLocalName());

   296         if (reader.getNamespaceCount() > 0) {

   297             storeNamespaceAttributes(reader);

   298         }

   300         if (reader.getAttributeCount() > 0) {

   301             storeAttributes(reader);

   302         }

   303     }

   305     private void storeElement(XMLStreamReader reader) {

   306         storeQualifiedName(T_ELEMENT_LN,

   307                 reader.getPrefix(), reader.getNamespaceURI(), reader.getLocalName());

   309         if (reader.getNamespaceCount() > 0) {

   310             storeNamespaceAttributes(reader);

   311         }

   313         if (reader.getAttributeCount() > 0) {

   314             storeAttributes(reader);

   315         }

   316     }

   318     /**

   319      * A low level method a create a structure element explicitly. This is useful when xsb is

   320      * created from a fragment's XMLStreamReader and inscope namespaces can be passed using

   321      * this method. Note that there is no way to enumerate namespaces from XMLStreamReader.

   322      *

   323      * For e.g: Say the SOAP message is as follows

   324      *

   325      *  <S:Envelope xmlns:n1=".."><S:Body><ns2:A> ...

   326      *

   327      * when xsb is to be created using a reader that is at <ns2:A> tag, the inscope

   328      * namespace like 'n1' can be passed using this method.

   329      *

   330      * WARNING: Instead of using this, try other methods(if you don't know what you are

   331      * doing).

   332      *

   333      * @param ns an array of the even length of the form { prefix0, uri0, prefix1, uri1, ... }.

   334      */

   335     public void storeElement(String nsURI, String localName, String prefix, String[] ns) {

   336         storeQualifiedName(T_ELEMENT_LN, prefix, nsURI, localName);

   337         storeNamespaceAttributes(ns);

   338     }

   340     /**

   341      * A low level method a create a structure element explicitly. This is

   342      * required to support {@link #storeElement} method.

   343      *

   344      * WARNING: Instead of using this, try other methods(if you don't know what

   345      * you are doing).

   346      */

   347     public void storeEndElement() {

   348         storeStructure(T_END);

   349     }

   351     private void storeNamespaceAttributes(XMLStreamReader reader) {

   352         int count = reader.getNamespaceCount();

   353         for (int i = 0; i < count; i++) {

   354             storeNamespaceAttribute(reader.getNamespacePrefix(i), reader.getNamespaceURI(i));

   355         }

   356     }

   358     /**

   359      * @param ns an array of the even length of the form { prefix0, uri0, prefix1, uri1, ... }.

   360      */

   361     private void storeNamespaceAttributes(String[] ns) {

   362         for (int i = 0; i < ns.length; i=i+2) {

   363             storeNamespaceAttribute(ns[i], ns[i+1]);

   364         }

   365     }

   367     private void storeAttributes(XMLStreamReader reader) {

   368         int count = reader.getAttributeCount();

   369         for (int i = 0; i < count; i++) {

   370             storeAttribute(reader.getAttributePrefix(i), reader.getAttributeNamespace(i), reader.getAttributeLocalName(i),

   371                     reader.getAttributeType(i), reader.getAttributeValue(i));

   372         }

   373     }

   375     private void storeComment(XMLStreamReader reader) {

   376         storeContentCharacters(T_COMMENT_AS_CHAR_ARRAY,

   377                 reader.getTextCharacters(), reader.getTextStart(), reader.getTextLength());

   378     }

   380     private void storeProcessingInstruction(XMLStreamReader reader) {

   381         storeProcessingInstruction(reader.getPITarget(), reader.getPIData());

   382     }

   383 }

Mercurial > jdk8-mips64-public > jaxws / file revision

src/share/jaxws_classes/com/sun/xml/internal/stream/buffer/stax/StreamReaderBufferCreator.java@9c07ef4934dd

src/share/jaxws_classes/com/sun/xml/internal/stream/buffer/stax/StreamReaderBufferCreator.java