jdk8-mips64-public/jaxws: src/share/jaxws_classes/com/sun/xml/internal/ws/streaming/XMLStreamWriterUtil.java@9c07ef4934dd

     1 /*

     2  * Copyright (c) 1997, 2012, 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.ws.streaming;

    28 import com.sun.istack.internal.Nullable;

    29 import com.sun.xml.internal.ws.encoding.HasEncoding;

    30 import com.sun.xml.internal.ws.encoding.SOAPBindingCodec;

    32 import javax.xml.namespace.QName;

    33 import javax.xml.stream.XMLStreamWriter;

    34 import javax.xml.stream.XMLStreamException;

    35 import java.util.Map;

    36 import java.io.OutputStream;

    38 /**

    39  * <p>XMLStreamWriterUtil provides some utility methods intended to be used

    40  * in conjunction with a StAX XMLStreamWriter. </p>

    41  *

    42  * @author Santiago.PericasGeertsen@sun.com

    43  */

    44 public class XMLStreamWriterUtil {

    46     private XMLStreamWriterUtil() {

    47     }

    49     /**

    50      * Gives the underlying stream for XMLStreamWriter. It closes any start elements, and returns the stream so

    51      * that JAXB can write infoset directly to the stream.

    52      *

    53      * @param writer XMLStreamWriter for which stream is required

    54      * @return  underlying OutputStream, null if writer doesn't provide a way to get it

    55      * @throws XMLStreamException if any of writer operations throw the exception

    56      */

    57     public static @Nullable OutputStream getOutputStream(XMLStreamWriter writer) throws XMLStreamException {

    58         Object obj = null;

    60         // Hack for JDK6's SJSXP

    61         if (writer instanceof Map) {

    62             obj = ((Map) writer).get("sjsxp-outputstream");

    63         }

    65         // woodstox

    66         if (obj == null) {

    67             try {

    68                 obj = writer.getProperty("com.ctc.wstx.outputUnderlyingStream");

    69             } catch(Exception ie) {

    70                 // Catch all exceptions. SJSXP in JDK throws NPE

    71                 // nothing to do here

    72             }

    73         }

    75         // SJSXP

    76         if (obj == null) {

    77             try {

    78                 obj = writer.getProperty("http://java.sun.com/xml/stream/properties/outputstream");

    79             } catch(Exception ie) {

    80                 // Catch all exceptions. SJSXP in JDK throws NPE

    81                 // nothing to do here

    82             }

    83         }

    86         if (obj != null) {

    87             writer.writeCharacters("");  // Force completion of open elems

    88             writer.flush();

    89             return (OutputStream)obj;

    90         }

    91         return null;

    92     }

    94     /**

    95      * Gives the encoding with which XMLStreamWriter is created.

    96      *

    97      * @param writer XMLStreamWriter for which encoding is required

    98      * @return null if cannot be found, else the encoding

    99      */

   100     public static @Nullable String getEncoding(XMLStreamWriter writer) {

   101         /*

   102          * TODO Add reflection logic to handle woodstox writer

   103          * as it implements XMLStreamWriter2#getEncoding()

   104          * It's not that important since woodstox writer is typically wrapped

   105          * in a writer with HasEncoding

   106          */

   107         return (writer instanceof HasEncoding)

   108                 ? ((HasEncoding)writer).getEncoding()

   109                 : null;

   110     }

   112     public static String encodeQName(XMLStreamWriter writer, QName qname,

   113         PrefixFactory prefixFactory)

   114     {

   115         // NOTE: Here it is assumed that we do not serialize using default

   116         // namespace declarations and therefore that writer.getPrefix will

   117         // never return ""

   119         try {

   120             String namespaceURI = qname.getNamespaceURI();

   121             String localPart = qname.getLocalPart();

   123             if (namespaceURI == null || namespaceURI.equals("")) {

   124                 return localPart;

   125             }

   126             else {

   127                 String prefix = writer.getPrefix(namespaceURI);

   128                 if (prefix == null) {

   129                     prefix = prefixFactory.getPrefix(namespaceURI);

   130                     writer.writeNamespace(prefix, namespaceURI);

   131                 }

   132                 return prefix + ":" + localPart;

   133             }

   134         }

   135         catch (XMLStreamException e) {

   136             throw new RuntimeException(e);

   137         }

   138     }

   139 }

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