/*

 * Copyright (c) 2000, 2005, Oracle and/or its affiliates. All rights reserved.

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.  Oracle designates this

 * particular file as subject to the "Classpath" exception as provided

 * by Oracle in the LICENSE file that accompanied this code.

 *

 * This code is distributed in the hope that it will be useful, but WITHOUT

 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

 * or visit www.oracle.com if you need additional information or have any

 * questions.

 */

// SAX exception class.

// http://www.saxproject.org

// No warranty; no copyright -- use this as you will.

// $Id: SAXParseException.java,v 1.2 2004/11/03 22:55:32 jsuttor Exp $

package org.xml.sax;

/**

 * Encapsulate an XML parse error or warning.

 *

 * <blockquote>

 * <em>This module, both source code and documentation, is in the

 * Public Domain, and comes with <strong>NO WARRANTY</strong>.</em>

 * See <a href='http://www.saxproject.org'>http://www.saxproject.org</a>

 * for further information.

 * </blockquote>

 *

 * <p>This exception may include information for locating the error

 * in the original XML document, as if it came from a {@link Locator}

 * object.  Note that although the application

 * will receive a SAXParseException as the argument to the handlers

 * in the {@link org.xml.sax.ErrorHandler ErrorHandler} interface,

 * the application is not actually required to throw the exception;

 * instead, it can simply read the information in it and take a

 * different action.</p>

 *

 * <p>Since this exception is a subclass of {@link org.xml.sax.SAXException

 * SAXException}, it inherits the ability to wrap another exception.</p>

 *

 * @author David Megginson

 * @version 2.0.1 (sax2r2)

 * @see org.xml.sax.SAXException

 * @see org.xml.sax.Locator

 * @see org.xml.sax.ErrorHandler

 */

public class SAXParseException extends SAXException {

    //////////////////////////////////////////////////////////////////////

    // Constructors.

    //////////////////////////////////////////////////////////////////////

    /**

     * Create a new SAXParseException from a message and a Locator.

     *

     * <p>This constructor is especially useful when an application is

     * creating its own exception from within a {@link org.xml.sax.ContentHandler

     * ContentHandler} callback.</p>

     *

     * @param message The error or warning message.

     * @param locator The locator object for the error or warning (may be

     *        null).

     * @see org.xml.sax.Locator

     */

    public SAXParseException (String message, Locator locator) {

        super(message);

        if (locator != null) {

            init(locator.getPublicId(), locator.getSystemId(),

                 locator.getLineNumber(), locator.getColumnNumber());

        } else {

            init(null, null, -1, -1);

        }

    }

    /**

     * Wrap an existing exception in a SAXParseException.

     *

     * <p>This constructor is especially useful when an application is

     * creating its own exception from within a {@link org.xml.sax.ContentHandler

     * ContentHandler} callback, and needs to wrap an existing exception that is not a

     * subclass of {@link org.xml.sax.SAXException SAXException}.</p>

     *

     * @param message The error or warning message, or null to

     *                use the message from the embedded exception.

     * @param locator The locator object for the error or warning (may be

     *        null).

     * @param e Any exception.

     * @see org.xml.sax.Locator

     */

    public SAXParseException (String message, Locator locator,

                              Exception e) {

        super(message, e);

        if (locator != null) {

            init(locator.getPublicId(), locator.getSystemId(),

                 locator.getLineNumber(), locator.getColumnNumber());

        } else {

            init(null, null, -1, -1);

        }

    }

    /**

     * Create a new SAXParseException.

     *

     * <p>This constructor is most useful for parser writers.</p>

     *

     * <p>All parameters except the message are as if

     * they were provided by a {@link Locator}.  For example, if the

     * system identifier is a URL (including relative filename), the

     * caller must resolve it fully before creating the exception.</p>

     *

     *

     * @param message The error or warning message.

     * @param publicId The public identifier of the entity that generated

     *                 the error or warning.

     * @param systemId The system identifier of the entity that generated

     *                 the error or warning.

     * @param lineNumber The line number of the end of the text that

     *                   caused the error or warning.

     * @param columnNumber The column number of the end of the text that

     *                     cause the error or warning.

     */

    public SAXParseException (String message, String publicId, String systemId,

                              int lineNumber, int columnNumber)

    {

        super(message);

        init(publicId, systemId, lineNumber, columnNumber);

    }

    /**

     * Create a new SAXParseException with an embedded exception.

     *

     * <p>This constructor is most useful for parser writers who

     * need to wrap an exception that is not a subclass of

     * {@link org.xml.sax.SAXException SAXException}.</p>

     *

     * <p>All parameters except the message and exception are as if

     * they were provided by a {@link Locator}.  For example, if the

     * system identifier is a URL (including relative filename), the

     * caller must resolve it fully before creating the exception.</p>

     *

     * @param message The error or warning message, or null to use

     *                the message from the embedded exception.

     * @param publicId The public identifier of the entity that generated

     *                 the error or warning.

     * @param systemId The system identifier of the entity that generated

     *                 the error or warning.

     * @param lineNumber The line number of the end of the text that

     *                   caused the error or warning.

     * @param columnNumber The column number of the end of the text that

     *                     cause the error or warning.

     * @param e Another exception to embed in this one.

     */

    public SAXParseException (String message, String publicId, String systemId,

                              int lineNumber, int columnNumber, Exception e)

    {

        super(message, e);

        init(publicId, systemId, lineNumber, columnNumber);

    }

    /**

     * Internal initialization method.

     *

     * @param publicId The public identifier of the entity which generated the exception,

     *        or null.

     * @param systemId The system identifier of the entity which generated the exception,

     *        or null.

     * @param lineNumber The line number of the error, or -1.

     * @param columnNumber The column number of the error, or -1.

     */

    private void init (String publicId, String systemId,

                       int lineNumber, int columnNumber)

    {

        this.publicId = publicId;

        this.systemId = systemId;

        this.lineNumber = lineNumber;

        this.columnNumber = columnNumber;

    }

    /**

     * Get the public identifier of the entity where the exception occurred.

     *

     * @return A string containing the public identifier, or null

     *         if none is available.

     * @see org.xml.sax.Locator#getPublicId

     */

    public String getPublicId ()

    {

        return this.publicId;

    }

    /**

     * Get the system identifier of the entity where the exception occurred.

     *

     * <p>If the system identifier is a URL, it will have been resolved

     * fully.</p>

     *

     * @return A string containing the system identifier, or null

     *         if none is available.

     * @see org.xml.sax.Locator#getSystemId

     */

    public String getSystemId ()

    {

        return this.systemId;

    }

    /**

     * The line number of the end of the text where the exception occurred.

     *

     * <p>The first line is line 1.</p>

     *

     * @return An integer representing the line number, or -1

     *         if none is available.

     * @see org.xml.sax.Locator#getLineNumber

     */

    public int getLineNumber ()

    {

        return this.lineNumber;

    }

    /**

     * The column number of the end of the text where the exception occurred.

     *

     * <p>The first column in a line is position 1.</p>

     *

     * @return An integer representing the column number, or -1

     *         if none is available.

     * @see org.xml.sax.Locator#getColumnNumber

     */

    public int getColumnNumber ()

    {

        return this.columnNumber;

    }

    /**

     * Override toString to provide more detailed error message.

     *

     * @return A string representation of this exception.

     */

    public String toString() {

        StringBuilder buf = new StringBuilder(getClass().getName());

        String message = getLocalizedMessage();

        if (publicId!=null)    buf.append("publicId: ").append(publicId);

        if (systemId!=null)    buf.append("; systemId: ").append(systemId);

        if (lineNumber!=-1)    buf.append("; lineNumber: ").append(lineNumber);

        if (columnNumber!=-1)  buf.append("; columnNumber: ").append(columnNumber);

       //append the exception message at the end

        if (message!=null)     buf.append("; ").append(message);

        return buf.toString();

    }

    //////////////////////////////////////////////////////////////////////

    // Internal state.

    //////////////////////////////////////////////////////////////////////

    /**

     * @serial The public identifier, or null.

     * @see #getPublicId

     */

    private String publicId;

    /**

     * @serial The system identifier, or null.

     * @see #getSystemId

     */

    private String systemId;

    /**

     * @serial The line number, or -1.

     * @see #getLineNumber

     */

    private int lineNumber;

    /**

     * @serial The column number, or -1.

     * @see #getColumnNumber

     */

    private int columnNumber;

    // Added serialVersionUID to preserve binary compatibility

    static final long serialVersionUID = -5651165872476709336L;

}

// end of SAXParseException.java