XMLErrorHandler 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.util;
    9
    10  import org.dom4j.DocumentHelper;
    11  import org.dom4j.Element;
    12  import org.dom4j.QName;
    13
    14  import org.xml.sax.ErrorHandler;
    15  import org.xml.sax.SAXParseException;
    16
    17  /***
    18   * <code>XMLErrorHandler</code> is a SAX {@link ErrorHandler}which turns the
    19   * SAX parsing errors into XML so that the output can be formatted using XSLT or
    20   * the errors can be included in a SOAP message.
    21   *
    22   * @author <a href="mailto:jstrachan@apache.org">James Strachan </a>
    23   * @version $Revision: 1.7 $
    24   */
    25  public class XMLErrorHandler implements ErrorHandler {
    26      protected static final QName ERROR_QNAME = QName.get("error");
    27
    28      protected static final QName FATALERROR_QNAME = QName.get("fatalError");
    29
    30      protected static final QName WARNING_QNAME = QName.get("warning");
    31
    32      /*** Stores the errors that occur during a SAX parse */
    33      private Element errors;
    34
    35      /*** QName used for error elements */
    36      private QName errorQName = ERROR_QNAME;
    37
    38      /*** QName used for fatalerror elements */
    39      private QName fatalErrorQName = FATALERROR_QNAME;
    40
    41      /*** QName used for warning elements */
    42      private QName warningQName = WARNING_QNAME;
    43
    44      public XMLErrorHandler() {
    45          this.errors = DocumentHelper.createElement("errors");
    46      }
    47
    48      public XMLErrorHandler(Element errors) {
    49          this.errors = errors;
    50      }
    51
    52      public void error(SAXParseException e) {
    53          Element element = errors.addElement(errorQName);
    54          addException(element, e);
    55      }
    56
    57      public void fatalError(SAXParseException e) {
    58          Element element = errors.addElement(fatalErrorQName);
    59          addException(element, e);
    60      }
    61
    62      public void warning(SAXParseException e) {
    63          Element element = errors.addElement(warningQName);
    64          addException(element, e);
    65      }
    66
    67      // Properties
    68      // -------------------------------------------------------------------------
    69      public Element getErrors() {
    70          return errors;
    71      }
    72
    73      public void setErrors(Element errors) {
    74          this.errors = errors;
    75      }
    76
    77      // Allow the QNames used to create subelements to be changed
    78      public QName getErrorQName() {
    79          return errorQName;
    80      }
    81
    82      public void setErrorQName(QName errorQName) {
    83          this.errorQName = errorQName;
    84      }
    85
    86      public QName getFatalErrorQName() {
    87          return fatalErrorQName;
    88      }
    89
    90      public void setFatalErrorQName(QName fatalErrorQName) {
    91          this.fatalErrorQName = fatalErrorQName;
    92      }
    93
    94      public QName getWarningQName() {
    95          return warningQName;
    96      }
    97
    98      public void setWarningQName(QName warningQName) {
    99          this.warningQName = warningQName;
    100     }
    101
    102     // Implementation methods
    103     // -------------------------------------------------------------------------
    104
    105     /***
    106      * Adds the given parse exception information to the given element instance
    107      *
    108      * @param element
    109      *            DOCUMENT ME!
    110      * @param e
    111      *            DOCUMENT ME!
    112      */
    113     protected void addException(Element element, SAXParseException e) {
    114         element.addAttribute("column", Integer.toString(e.getColumnNumber()));
    115         element.addAttribute("line", Integer.toString(e.getLineNumber()));
    116
    117         String publicID = e.getPublicId();
    118
    119         if ((publicID != null) && (publicID.length() > 0)) {
    120             element.addAttribute("publicID", publicID);
    121         }
    122
    123         String systemID = e.getSystemId();
    124
    125         if ((systemID != null) && (systemID.length() > 0)) {
    126             element.addAttribute("systemID", systemID);
    127         }
    128
    129         element.addText(e.getMessage());
    130     }
    131 }
    132
    133 /*
    134  * Redistribution and use of this software and associated documentation
    135  * ("Software"), with or without modification, are permitted provided that the
    136  * following conditions are met:
    137  *
    138  * 1. Redistributions of source code must retain copyright statements and
    139  * notices. Redistributions must also contain a copy of this document.
    140  *
    141  * 2. Redistributions in binary form must reproduce the above copyright notice,
    142  * this list of conditions and the following disclaimer in the documentation
    143  * and/or other materials provided with the distribution.
    144  *
    145  * 3. The name "DOM4J" must not be used to endorse or promote products derived
    146  * from this Software without prior written permission of MetaStuff, Ltd. For
    147  * written permission, please contact dom4j-info@metastuff.com.
    148  *
    149  * 4. Products derived from this Software may not be called "DOM4J" nor may
    150  * "DOM4J" appear in their names without prior written permission of MetaStuff,
    151  * Ltd. DOM4J is a registered trademark of MetaStuff, Ltd.
    152  *
    153  * 5. Due credit should be given to the DOM4J Project - http://www.dom4j.org
    154  *
    155  * THIS SOFTWARE IS PROVIDED BY METASTUFF, LTD. AND CONTRIBUTORS ``AS IS'' AND
    156  * ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
    157  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
    158  * ARE DISCLAIMED. IN NO EVENT SHALL METASTUFF, LTD. OR ITS CONTRIBUTORS BE
    159  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
    160  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
    161  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
    162  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
    163  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
    164  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
    165  * POSSIBILITY OF SUCH DAMAGE.
    166  *
    167  * Copyright 2001-2005 (C) MetaStuff, Ltd. All Rights Reserved.
    168  */