JAXBWriter xref

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    1   /*
    2    * Copyright 2001-2005 (C) MetaStuff, Ltd. All Rights Reserved.
    3    *
    4    * This software is open source.
    5    * See the bottom of this file for the licence.
    6    */
    7
    8   package org.dom4j.jaxb;
    9
    10  import java.io.File;
    11  import java.io.FileOutputStream;
    12  import java.io.IOException;
    13  import java.io.OutputStream;
    14  import java.io.Writer;
    15
    16  import javax.xml.bind.JAXBException;
    17
    18  import org.dom4j.Element;
    19  import org.dom4j.io.OutputFormat;
    20  import org.dom4j.io.XMLWriter;
    21
    22  import org.xml.sax.SAXException;
    23
    24  /***
    25   * Writes {@link javax.xml.bind.Element}objects to an XML stream. {@link
    26   * javax.xml.bind.Element} instances can be created using the ObjectFactory that
    27   * is generated by the JAXB compiler.
    28   *
    29   * @author Wonne Keysers (Realsoftware.be)
    30   *
    31   * @see org.dom4j.io.XMLWriter
    32   * @see javax.xml.bind.JAXBContext
    33   */
    34  public class JAXBWriter extends JAXBSupport {
    35      private XMLWriter xmlWriter;
    36
    37      private OutputFormat outputFormat;
    38
    39      /***
    40       * Creates a new JAXBWriter for the given JAXB context path. This is the
    41       * Java package where JAXB can find the generated XML classes. This package
    42       * MUST contain jaxb.properties!
    43       *
    44       * @param contextPath
    45       *            JAXB context path to be used
    46       *
    47       * @see javax.xml.bind.JAXBContext
    48       */
    49      public JAXBWriter(String contextPath) {
    50          super(contextPath);
    51          outputFormat = new OutputFormat();
    52      }
    53
    54      /***
    55       * Creates a new JAXBWriter for the given JAXB context path. The specied
    56       * {@link org.dom4j.io.OutputFormat}will be used for writing the XML
    57       * stream.
    58       *
    59       * @param contextPath
    60       *            JAXB context path to be used
    61       * @param outputFormat
    62       *            the DOM4J {@link org.dom4j.io.OutputFormat}to be used
    63       *
    64       * @see javax.xml.bind.JAXBContext
    65       */
    66      public JAXBWriter(String contextPath, OutputFormat outputFormat) {
    67          super(contextPath);
    68          this.outputFormat = outputFormat;
    69      }
    70
    71      /***
    72       * Creates a new JAXBWriter for the given JAXB context path, using the
    73       * specified {@link java.lang.Classloader}. (This is the Java package where
    74       * JAXB can find the generated XML classes. This package MUST contain
    75       * jaxb.properties!)
    76       *
    77       * @param contextPath
    78       *            JAXB context path to be used
    79       * @param classloader
    80       *            the classloader to be used for loading JAXB
    81       *
    82       * @see javax.xml.bind.JAXBContext
    83       */
    84      public JAXBWriter(String contextPath, ClassLoader classloader) {
    85          super(contextPath, classloader);
    86      }
    87
    88      /***
    89       * Creates a new JAXBWriter for the given JAXB context path, using the
    90       * specified {@link java.lang.Classloader}. The specied {@link
    91       * org.dom4j.io.OutputFormat} will be used while writing the XML stream.
    92       *
    93       * @param contextPath
    94       *            JAXB context path to be used
    95       * @param classloader
    96       *            the class loader to be used to load JAXB
    97       * @param outputFormat
    98       *            the DOM4J {@link org.dom4j.io.OutputFormat}to be used
    99       *
    100      * @see javax.xml.bind.JAXBContext
    101      */
    102     public JAXBWriter(String contextPath, ClassLoader classloader,
    103             OutputFormat outputFormat) {
    104         super(contextPath, classloader);
    105         this.outputFormat = outputFormat;
    106     }
    107
    108     /***
    109      * Returns the OutputFormat that will be used when writing the XML stream.
    110      *
    111      * @return Returns the output format.
    112      */
    113     public OutputFormat getOutputFormat() {
    114         return outputFormat;
    115     }
    116
    117     /***
    118      * Defines to write the resulting output to the specified {@link
    119      * java.io.File}.
    120      *
    121      * @param file
    122      *            file to write to
    123      *
    124      * @throws IOException
    125      *             when the file cannot be found
    126      */
    127     public void setOutput(File file) throws IOException {
    128         getWriter().setOutputStream(new FileOutputStream(file));
    129     }
    130
    131     /***
    132      * Defines to write the resulting output to the specified {@link
    133      * java.io.OutputStream}
    134      *
    135      * @param outputStream
    136      *            outputStream to write to.
    137      *
    138      * @throws IOException
    139      *             DOCUMENT ME!
    140      */
    141     public void setOutput(OutputStream outputStream) throws IOException {
    142         getWriter().setOutputStream(outputStream);
    143     }
    144
    145     /***
    146      * Defines to write the resulting output to the specified {@link Writer}.
    147      *
    148      * @param writer
    149      *            writer to write to
    150      *
    151      * @throws IOException
    152      */
    153     public void setOutput(Writer writer) throws IOException {
    154         getWriter().setWriter(writer);
    155     }
    156
    157     /***
    158      * Start a document by writing the initial XML declaration to the output.
    159      * This must be done prior to writing any other elements.
    160      *
    161      * @throws IOException
    162      *             if an error occured while writing the output
    163      * @throws SAXException
    164      *             thrown by the underlying SAX driver
    165      */
    166     public void startDocument() throws IOException, SAXException {
    167         getWriter().startDocument();
    168     }
    169
    170     /***
    171      * Stop writing the document to the output. This must be done when all other
    172      * elements are finished.
    173      *
    174      * @throws IOException
    175      *             if an error occured while writing the output
    176      * @throws SAXException
    177      *             thrown by the underlying SAX driver
    178      */
    179     public void endDocument() throws IOException, SAXException {
    180         getWriter().endDocument();
    181     }
    182
    183     /***
    184      * Writes the specified {@link javax.xml.bind.Element}to the document.
    185      * {@link javax.xml.bind.Element}instances can be created using the
    186      * ObjectFactory that is generated by the JAXB compiler.
    187      *
    188      * @param jaxbObject
    189      *
    190      * @throws IOException
    191      *             if an error occured while writing the output
    192      * @throws JAXBException
    193      *             when an error occured while marshalling the jaxbObject
    194      */
    195     public void write(javax.xml.bind.Element jaxbObject) throws IOException,
    196             JAXBException {
    197         getWriter().write(marshal(jaxbObject));
    198     }
    199
    200     /***
    201      * Writes the closing tag of the specified {@link javax.xml.bind.Element}to
    202      * the document. This method can be used for writing {@link
    203      * javax.xml.bind.Element} instances can be created using the ObjectFactory
    204      * that is generated by the JAXB compiler.
    205      *
    206      * @param jaxbObject
    207      *            the JAXB element to write
    208      *
    209      * @throws IOException
    210      *             if an error occured while writing the output
    211      * @throws JAXBException
    212      *             when an error occured while marshalling the jaxbObject
    213      */
    214     public void writeClose(javax.xml.bind.Element jaxbObject)
    215             throws IOException, JAXBException {
    216         getWriter().writeClose(marshal(jaxbObject));
    217     }
    218
    219     /***
    220      * Writes the opening tag of the specified {@link javax.xml.bind.Element}to
    221      * the document. {@link javax.xml.bind.Element}instances can be created
    222      * using the ObjectFactory that is generated by the JAXB compiler.
    223      *
    224      * @param jaxbObject
    225      *            the JAXB element to write
    226      *
    227      * @throws IOException
    228      *             if an error occured while writing the output
    229      * @throws JAXBException
    230      *             when an error occured while marshalling the jaxbObject
    231      */
    232     public void writeOpen(javax.xml.bind.Element jaxbObject)
    233             throws IOException, JAXBException {
    234         getWriter().writeOpen(marshal(jaxbObject));
    235     }
    236
    237     /***
    238      * Writes the specified {@link org.dom4j.Element}to the document.
    239      *
    240      * @param element
    241      *            the {@link org.dom4j.Element}to write
    242      *
    243      * @throws IOException
    244      *             if an error occured while writing the output
    245      */
    246     public void writeElement(Element element) throws IOException {
    247         getWriter().write(element);
    248     }
    249
    250     /***
    251      * Writes the closing tag of the specified {@link org.dom4j.Element}to the
    252      * document.
    253      *
    254      * @param element
    255      *            the {@link org.dom4j.Element}to write
    256      *
    257      * @throws IOException
    258      *             if an error occured while writing the output
    259      */
    260     public void writeCloseElement(Element element) throws IOException {
    261         getWriter().writeClose(element);
    262     }
    263
    264     /***
    265      * Writes the opening tag of the specified {@link org.dom4j.Element}to the
    266      * document.
    267      *
    268      * @param element
    269      *            the {@link org.dom4j.Element}to write
    270      *
    271      * @throws IOException
    272      *             if an error occured while writing the output
    273      */
    274     public void writeOpenElement(Element element) throws IOException {
    275         getWriter().writeOpen(element);
    276     }
    277
    278     private XMLWriter getWriter() throws IOException {
    279         if (xmlWriter == null) {
    280             if (this.outputFormat != null) {
    281                 xmlWriter = new XMLWriter(outputFormat);
    282             } else {
    283                 xmlWriter = new XMLWriter();
    284             }
    285         }
    286
    287         return xmlWriter;
    288     }
    289 }
    290
    291 /*
    292  * Redistribution and use of this software and associated documentation
    293  * ("Software"), with or without modification, are permitted provided that the
    294  * following conditions are met:
    295  *
    296  * 1. Redistributions of source code must retain copyright statements and
    297  * notices. Redistributions must also contain a copy of this document.
    298  *
    299  * 2. Redistributions in binary form must reproduce the above copyright notice,
    300  * this list of conditions and the following disclaimer in the documentation
    301  * and/or other materials provided with the distribution.
    302  *
    303  * 3. The name "DOM4J" must not be used to endorse or promote products derived
    304  * from this Software without prior written permission of MetaStuff, Ltd. For
    305  * written permission, please contact dom4j-info@metastuff.com.
    306  *
    307  * 4. Products derived from this Software may not be called "DOM4J" nor may
    308  * "DOM4J" appear in their names without prior written permission of MetaStuff,
    309  * Ltd. DOM4J is a registered trademark of MetaStuff, Ltd.
    310  *
    311  * 5. Due credit should be given to the DOM4J Project - http://www.dom4j.org
    312  *
    313  * THIS SOFTWARE IS PROVIDED BY METASTUFF, LTD. AND CONTRIBUTORS ``AS IS'' AND
    314  * ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
    315  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
    316  * ARE DISCLAIMED. IN NO EVENT SHALL METASTUFF, LTD. OR ITS CONTRIBUTORS BE
    317  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
    318  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
    319  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
    320  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
    321  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
    322  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
    323  * POSSIBILITY OF SUCH DAMAGE.
    324  *
    325  * Copyright 2001-2005 (C) MetaStuff, Ltd. All Rights Reserved.
    326  */