src/share/jaxws_classes/com/sun/xml/internal/ws/commons/xmlutil/Converter.java

Fri, 23 Aug 2013 09:57:21 +0100

author
mkos
date
Fri, 23 Aug 2013 09:57:21 +0100
changeset 397
b99d7e355d4b
parent 368
0989ad8c0860
child 515
6cd506508147
permissions
-rw-r--r--

8022885: Update JAX-WS RI integration to 2.2.9-b14140
8013016: Rebase 8009009 against the latest jdk8/jaxws
Reviewed-by: alanb, chegar

     1 /*
     2  * Copyright (c) 1997, 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.ws.commons.xmlutil;
    28 import com.sun.istack.internal.NotNull;
    29 import com.sun.istack.internal.logging.Logger;
    30 import com.sun.xml.internal.ws.api.message.Message;
    31 import com.sun.xml.internal.ws.api.message.Messages;
    32 import com.sun.xml.internal.ws.api.message.Packet;
    33 import com.sun.xml.internal.ws.util.xml.XmlUtil;
    35 import javax.xml.stream.*;
    36 import javax.xml.xpath.XPathFactoryConfigurationException;
    37 import java.io.*;
    38 import java.lang.reflect.Constructor;
    39 import java.util.concurrent.atomic.AtomicBoolean;
    40 import java.util.logging.Level;
    42 /**
    43  * Utility class that provides conversion of different XML representations
    44  * from/to various other formats
    45  *
    46  * @author Marek Potociar
    47  */
    48 public final class Converter {
    50     public static final String UTF_8 = "UTF-8";
    52     private Converter() {
    53         // prevents instantiation
    54     }
    55     private static final Logger LOGGER = Logger.getLogger(Converter.class);
    56     private static final XMLOutputFactory xmlOutputFactory = XMLOutputFactory.newInstance();
    57     private static final AtomicBoolean logMissingStaxUtilsWarning = new AtomicBoolean(false);
    59     /**
    60      * Converts a throwable to String
    61      *
    62      * @param throwable
    63      * @return String representation of throwable
    64      */
    65     public static String toString(Throwable throwable) {
    66         if (throwable == null) {
    67             return "[ No exception ]";
    68         }
    70         StringWriter stringOut = new StringWriter();
    71         throwable.printStackTrace(new PrintWriter(stringOut));
    73         return stringOut.toString();
    74     }
    76     public static String toString(Packet packet) {
    77         if (packet == null) {
    78             return "[ Null packet ]";
    79         } else if (packet.getMessage() == null) {
    80                 return "[ Empty packet ]";
    81         }
    83         return toString(packet.getMessage());
    84     }
    86     public static String toStringNoIndent(Packet packet) {
    87         if (packet == null) {
    88             return "[ Null packet ]";
    89         } else if (packet.getMessage() == null) {
    90                 return "[ Empty packet ]";
    91         }
    93         return toStringNoIndent(packet.getMessage());
    94     }
    96     public static String toString(Message message) {
    97         return toString(message, true);
    98     }
   100     public static String toStringNoIndent(Message message) {
   101         return toString(message, false);
   102     }
   104     private static String toString(Message message, boolean createIndenter) {
   105         if (message == null) {
   106             return "[ Null message ]";
   107         }
   108         StringWriter stringOut = null;
   109         try {
   110             stringOut = new StringWriter();
   111             XMLStreamWriter writer = null;
   112             try {
   113                 writer = xmlOutputFactory.createXMLStreamWriter(stringOut);
   114                 if (createIndenter) {
   115                     writer = createIndenter(writer);
   116                 }
   117                 message.copy().writeTo(writer);
   118             } catch (Exception e) { // WSIT-1596 - Message Dumping should not affect other processing
   119                 LOGGER.log(Level.WARNING, "Unexpected exception occured while dumping message", e);
   120             } finally {
   121                 if (writer != null) {
   122                     try {
   123                         writer.close();
   124                     } catch (XMLStreamException ignored) {
   125                         LOGGER.fine("Unexpected exception occured while closing XMLStreamWriter", ignored);
   126                     }
   127                 }
   128             }
   129             return stringOut.toString();
   130         } finally {
   131             if (stringOut != null) {
   132                 try {
   133                     stringOut.close();
   134                 } catch (IOException ex) {
   135                     LOGGER.finest("An exception occured when trying to close StringWriter", ex);
   136                 }
   137             }
   138         }
   139     }
   141     public static byte[] toBytes(Message message, String encoding) throws XMLStreamException {
   142         ByteArrayOutputStream baos = new ByteArrayOutputStream();
   144         try {
   145             if (message != null) {
   146                 XMLStreamWriter xsw = xmlOutputFactory.createXMLStreamWriter(baos, encoding);
   147                 try {
   148                     message.writeTo(xsw);
   149                 } finally {
   150                     try {
   151                         xsw.close();
   152                     } catch (XMLStreamException ex) {
   153                         LOGGER.warning("Unexpected exception occured while closing XMLStreamWriter", ex);
   154                     }
   155                 }
   156             }
   158             return baos.toByteArray();
   159         } finally {
   160             try {
   161                 baos.close();
   162             } catch (IOException ex) {
   163                 LOGGER.warning("Unexpected exception occured while closing ByteArrayOutputStream", ex);
   164             }
   165         }
   166     }
   168     /**
   169      * Converts JAX-WS RI message represented as input stream back to Message
   170      * object.
   171      *
   172      * @param dataStream message data stream
   173      * @param encoding message data stream encoding
   174      *
   175      * @return {@link com.sun.xml.internal.ws.api.message.Message} object created from the data stream
   176      */
   177     public static Message toMessage(@NotNull InputStream dataStream, String encoding) throws XMLStreamException {
   178         XMLStreamReader xsr = XmlUtil.newXMLInputFactory(true).createXMLStreamReader(dataStream, encoding);
   179         return Messages.create(xsr);
   180     }
   182     public static String messageDataToString(final byte[] data, final String encoding) {
   183         try {
   184             return toString(toMessage(new ByteArrayInputStream(data), encoding));
   185             // closing ByteArrayInputStream has no effect, so ignoring the redundant call
   186         } catch (XMLStreamException ex) {
   187             LOGGER.warning("Unexpected exception occured while converting message data to string", ex);
   188             return "[ Message Data Conversion Failed ]";
   189         }
   190     }
   192     /**
   193      * Wraps {@link javax.xml.stream.XMLStreamWriter} by an indentation engine if possible.
   194      *
   195      * <p>
   196      * We can do this only when we have <tt>stax-utils.jar</tt> in the class path.
   197      */
   198     private static XMLStreamWriter createIndenter(XMLStreamWriter writer) {
   199         try {
   200             Class<?> clazz = Converter.class.getClassLoader().loadClass("javanet.staxutils.IndentingXMLStreamWriter");
   201             Constructor<?> c = clazz.getConstructor(XMLStreamWriter.class);
   202             writer = XMLStreamWriter.class.cast(c.newInstance(writer));
   203         } catch (Exception ex) {
   204             // if stax-utils.jar is not in the classpath, this will fail
   205             // so, we'll just have to do without indentation
   206             if (logMissingStaxUtilsWarning.compareAndSet(false, true)) {
   207                 LOGGER.log(Level.WARNING, "Put stax-utils.jar to the classpath to indent the dump output", ex);
   208             }
   209         }
   210         return writer;
   211     }
   212 }

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