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

Tue, 09 Apr 2013 14:51:13 +0100

author
alanb
date
Tue, 09 Apr 2013 14:51:13 +0100
changeset 368
0989ad8c0860
child 397
b99d7e355d4b
permissions
-rw-r--r--

8010393: Update JAX-WS RI to 2.2.9-b12941
Reviewed-by: alanb, erikj
Contributed-by: miroslav.kos@oracle.com, martin.grebac@oracle.com

alanb@368 1 /*
alanb@368 2 * Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved.
alanb@368 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
alanb@368 4 *
alanb@368 5 * This code is free software; you can redistribute it and/or modify it
alanb@368 6 * under the terms of the GNU General Public License version 2 only, as
alanb@368 7 * published by the Free Software Foundation. Oracle designates this
alanb@368 8 * particular file as subject to the "Classpath" exception as provided
alanb@368 9 * by Oracle in the LICENSE file that accompanied this code.
alanb@368 10 *
alanb@368 11 * This code is distributed in the hope that it will be useful, but WITHOUT
alanb@368 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
alanb@368 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
alanb@368 14 * version 2 for more details (a copy is included in the LICENSE file that
alanb@368 15 * accompanied this code).
alanb@368 16 *
alanb@368 17 * You should have received a copy of the GNU General Public License version
alanb@368 18 * 2 along with this work; if not, write to the Free Software Foundation,
alanb@368 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
alanb@368 20 *
alanb@368 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
alanb@368 22 * or visit www.oracle.com if you need additional information or have any
alanb@368 23 * questions.
alanb@368 24 */
alanb@368 25
alanb@368 26 package com.sun.xml.internal.ws.commons.xmlutil;
alanb@368 27
alanb@368 28 import com.sun.istack.internal.NotNull;
alanb@368 29 import com.sun.istack.internal.logging.Logger;
alanb@368 30 import com.sun.xml.internal.ws.api.message.Message;
alanb@368 31 import com.sun.xml.internal.ws.api.message.Messages;
alanb@368 32 import com.sun.xml.internal.ws.api.message.Packet;
alanb@368 33 import com.sun.xml.internal.ws.util.xml.XmlUtil;
alanb@368 34
alanb@368 35 import javax.xml.stream.*;
alanb@368 36 import javax.xml.xpath.XPathFactoryConfigurationException;
alanb@368 37 import java.io.*;
alanb@368 38 import java.lang.reflect.Constructor;
alanb@368 39 import java.util.concurrent.atomic.AtomicBoolean;
alanb@368 40 import java.util.logging.Level;
alanb@368 41
alanb@368 42 /**
alanb@368 43 * Utility class that provides conversion of different XML representations
alanb@368 44 * from/to various other formats
alanb@368 45 *
alanb@368 46 * @author Marek Potociar
alanb@368 47 */
alanb@368 48 public final class Converter {
alanb@368 49
alanb@368 50 public static final String UTF_8 = "UTF-8";
alanb@368 51
alanb@368 52 private Converter() {
alanb@368 53 // prevents instantiation
alanb@368 54 }
alanb@368 55 private static final Logger LOGGER = Logger.getLogger(Converter.class);
alanb@368 56 private static final XMLOutputFactory xmlOutputFactory = XMLOutputFactory.newInstance();
alanb@368 57 private static final AtomicBoolean logMissingStaxUtilsWarning = new AtomicBoolean(false);
alanb@368 58
alanb@368 59 /**
alanb@368 60 * Converts a throwable to String
alanb@368 61 *
alanb@368 62 * @param throwable
alanb@368 63 * @return String representation of throwable
alanb@368 64 */
alanb@368 65 public static String toString(Throwable throwable) {
alanb@368 66 if (throwable == null) {
alanb@368 67 return "[ No exception ]";
alanb@368 68 }
alanb@368 69
alanb@368 70 StringWriter stringOut = new StringWriter();
alanb@368 71 throwable.printStackTrace(new PrintWriter(stringOut));
alanb@368 72
alanb@368 73 return stringOut.toString();
alanb@368 74 }
alanb@368 75
alanb@368 76 public static String toString(Packet packet) {
alanb@368 77 if (packet == null) {
alanb@368 78 return "[ Null packet ]";
alanb@368 79 } else if (packet.getMessage() == null) {
alanb@368 80 return "[ Empty packet ]";
alanb@368 81 }
alanb@368 82
alanb@368 83 return toString(packet.getMessage());
alanb@368 84
alanb@368 85 }
alanb@368 86
alanb@368 87 public static String toString(Message message) {
alanb@368 88 if (message == null) {
alanb@368 89 return "[ Null message ]";
alanb@368 90 }
alanb@368 91 StringWriter stringOut = null;
alanb@368 92 try {
alanb@368 93 stringOut = new StringWriter();
alanb@368 94 XMLStreamWriter writer = null;
alanb@368 95 try {
alanb@368 96 writer = xmlOutputFactory.createXMLStreamWriter(stringOut);
alanb@368 97 writer = createIndenter(writer);
alanb@368 98 message.copy().writeTo(writer);
alanb@368 99 } catch (Exception e) { // WSIT-1596 - Message Dumping should not affect other processing
alanb@368 100 LOGGER.log(Level.WARNING, "Unexpected exception occured while dumping message", e);
alanb@368 101 } finally {
alanb@368 102 if (writer != null) {
alanb@368 103 try {
alanb@368 104 writer.close();
alanb@368 105 } catch (XMLStreamException ignored) {
alanb@368 106 LOGGER.fine("Unexpected exception occured while closing XMLStreamWriter", ignored);
alanb@368 107 }
alanb@368 108 }
alanb@368 109 }
alanb@368 110 return stringOut.toString();
alanb@368 111 } finally {
alanb@368 112 if (stringOut != null) {
alanb@368 113 try {
alanb@368 114 stringOut.close();
alanb@368 115 } catch (IOException ex) {
alanb@368 116 LOGGER.finest("An exception occured when trying to close StringWriter", ex);
alanb@368 117 }
alanb@368 118 }
alanb@368 119 }
alanb@368 120 }
alanb@368 121
alanb@368 122 public static byte[] toBytes(Message message, String encoding) throws XMLStreamException {
alanb@368 123 ByteArrayOutputStream baos = new ByteArrayOutputStream();
alanb@368 124
alanb@368 125 try {
alanb@368 126 if (message != null) {
alanb@368 127 XMLStreamWriter xsw = xmlOutputFactory.createXMLStreamWriter(baos, encoding);
alanb@368 128 try {
alanb@368 129 message.writeTo(xsw);
alanb@368 130 } finally {
alanb@368 131 try {
alanb@368 132 xsw.close();
alanb@368 133 } catch (XMLStreamException ex) {
alanb@368 134 LOGGER.warning("Unexpected exception occured while closing XMLStreamWriter", ex);
alanb@368 135 }
alanb@368 136 }
alanb@368 137 }
alanb@368 138
alanb@368 139 return baos.toByteArray();
alanb@368 140 } finally {
alanb@368 141 try {
alanb@368 142 baos.close();
alanb@368 143 } catch (IOException ex) {
alanb@368 144 LOGGER.warning("Unexpected exception occured while closing ByteArrayOutputStream", ex);
alanb@368 145 }
alanb@368 146 }
alanb@368 147 }
alanb@368 148
alanb@368 149 /**
alanb@368 150 * Converts JAX-WS RI message represented as input stream back to Message
alanb@368 151 * object.
alanb@368 152 *
alanb@368 153 * @param dataStream message data stream
alanb@368 154 * @param encoding message data stream encoding
alanb@368 155 *
alanb@368 156 * @return {@link com.sun.xml.internal.ws.api.message.Message} object created from the data stream
alanb@368 157 */
alanb@368 158 public static Message toMessage(@NotNull InputStream dataStream, String encoding) throws XMLStreamException {
alanb@368 159 XMLStreamReader xsr = XmlUtil.newXMLInputFactory(true).createXMLStreamReader(dataStream, encoding);
alanb@368 160 return Messages.create(xsr);
alanb@368 161 }
alanb@368 162
alanb@368 163 public static String messageDataToString(final byte[] data, final String encoding) {
alanb@368 164 try {
alanb@368 165 return toString(toMessage(new ByteArrayInputStream(data), encoding));
alanb@368 166 // closing ByteArrayInputStream has no effect, so ignoring the redundant call
alanb@368 167 } catch (XMLStreamException ex) {
alanb@368 168 LOGGER.warning("Unexpected exception occured while converting message data to string", ex);
alanb@368 169 return "[ Message Data Conversion Failed ]";
alanb@368 170 }
alanb@368 171 }
alanb@368 172
alanb@368 173 /**
alanb@368 174 * Wraps {@link javax.xml.stream.XMLStreamWriter} by an indentation engine if possible.
alanb@368 175 *
alanb@368 176 * <p>
alanb@368 177 * We can do this only when we have <tt>stax-utils.jar</tt> in the class path.
alanb@368 178 */
alanb@368 179 private static XMLStreamWriter createIndenter(XMLStreamWriter writer) {
alanb@368 180 try {
alanb@368 181 Class<?> clazz = Converter.class.getClassLoader().loadClass("javanet.staxutils.IndentingXMLStreamWriter");
alanb@368 182 Constructor<?> c = clazz.getConstructor(XMLStreamWriter.class);
alanb@368 183 writer = XMLStreamWriter.class.cast(c.newInstance(writer));
alanb@368 184 } catch (Exception ex) {
alanb@368 185 // if stax-utils.jar is not in the classpath, this will fail
alanb@368 186 // so, we'll just have to do without indentation
alanb@368 187 if (logMissingStaxUtilsWarning.compareAndSet(false, true)) {
alanb@368 188 LOGGER.log(Level.WARNING, "Put stax-utils.jar to the classpath to indent the dump output", ex);
alanb@368 189 }
alanb@368 190 }
alanb@368 191 return writer;
alanb@368 192 }
alanb@368 193 }

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