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/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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package com.sun.org.apache.xml.internal.utils;

import java.io.Serializable;

import javax.xml.transform.SourceLocator;

import org.xml.sax.Locator;
import org.xml.sax.SAXParseException;
import org.xml.sax.helpers.LocatorImpl;

Class SAXSourceLocator extends org.xml.sax.helpers.LocatorImpl
for the purpose of implementing the SourceLocator interface,
and thus can be both a SourceLocator and a SAX Locator.
/**
 * Class SAXSourceLocator extends org.xml.sax.helpers.LocatorImpl
 * for the purpose of implementing the SourceLocator interface,
 * and thus can be both a SourceLocator and a SAX Locator.
 */
public class SAXSourceLocator extends LocatorImpl
        implements SourceLocator, Serializable
{
    static final long serialVersionUID = 3181680946321164112L;
  
The SAX Locator object.
 @serial
/** The SAX Locator object.
   *  @serial
   */
  Locator m_locator;

  
Constructor SAXSourceLocator
/**
   * Constructor SAXSourceLocator
   *
   */
  public SAXSourceLocator(){}

  
Constructor SAXSourceLocator
Params:
locator – Source locator/**
   * Constructor SAXSourceLocator
   *
   *
   * @param locator Source locator
   */
  public SAXSourceLocator(Locator locator)
  {
    m_locator = locator;
    this.setColumnNumber(locator.getColumnNumber());
    this.setLineNumber(locator.getLineNumber());
    this.setPublicId(locator.getPublicId());
    this.setSystemId(locator.getSystemId());
  }

  
Constructor SAXSourceLocator
Params:
locator – Source locator/**
   * Constructor SAXSourceLocator
   *
   *
   * @param locator Source locator
   */
  public SAXSourceLocator(javax.xml.transform.SourceLocator locator)
  {
    m_locator = null;
    this.setColumnNumber(locator.getColumnNumber());
    this.setLineNumber(locator.getLineNumber());
    this.setPublicId(locator.getPublicId());
    this.setSystemId(locator.getSystemId());
  }


  
Constructor SAXSourceLocator
Params:
spe – SAXParseException exception./**
   * Constructor SAXSourceLocator
   *
   *
   * @param spe SAXParseException exception.
   */
  public SAXSourceLocator(SAXParseException spe)
  {
    this.setLineNumber( spe.getLineNumber() );
    this.setColumnNumber( spe.getColumnNumber() );
    this.setPublicId( spe.getPublicId() );
    this.setSystemId( spe.getSystemId() );
  }

  
Return the public identifier for the current document event.
The return value is the public identifier of the document
entity or of the external parsed entity in which the markup
triggering the event appears.
See Also:
getSystemId
Returns:
A string containing the public identifier, or
        null if none is available./**
   * Return the public identifier for the current document event.
   *
   * <p>The return value is the public identifier of the document
   * entity or of the external parsed entity in which the markup
   * triggering the event appears.</p>
   *
   * @return A string containing the public identifier, or
   *         null if none is available.
   * @see #getSystemId
   */
  public String getPublicId()
  {
    return (null == m_locator) ? super.getPublicId() : m_locator.getPublicId();
  }

  
Return the system identifier for the current document event.
The return value is the system identifier of the document
entity or of the external parsed entity in which the markup
triggering the event appears.
If the system identifier is a URL, the parser must resolve it
fully before passing it to the application.
See Also:
getPublicId
Returns:
A string containing the system identifier, or null
        if none is available./**
   * Return the system identifier for the current document event.
   *
   * <p>The return value is the system identifier of the document
   * entity or of the external parsed entity in which the markup
   * triggering the event appears.</p>
   *
   * <p>If the system identifier is a URL, the parser must resolve it
   * fully before passing it to the application.</p>
   *
   * @return A string containing the system identifier, or null
   *         if none is available.
   * @see #getPublicId
   */
  public String getSystemId()
  {
    return (null == m_locator) ? super.getSystemId() : m_locator.getSystemId();
  }

  
Return the line number where the current document event ends.
Warning: The return value from the method
is intended only as an approximation for the sake of error
reporting; it is not intended to provide sufficient information
to edit the character content of the original XML document.
The return value is an approximation of the line number
in the document entity or external parsed entity where the
markup triggering the event appears.
See Also:
getColumnNumber
Returns:
The line number, or -1 if none is available./**
   * Return the line number where the current document event ends.
   *
   * <p><strong>Warning:</strong> The return value from the method
   * is intended only as an approximation for the sake of error
   * reporting; it is not intended to provide sufficient information
   * to edit the character content of the original XML document.</p>
   *
   * <p>The return value is an approximation of the line number
   * in the document entity or external parsed entity where the
   * markup triggering the event appears.</p>
   *
   * @return The line number, or -1 if none is available.
   * @see #getColumnNumber
   */
  public int getLineNumber()
  {
    return (null == m_locator) ? super.getLineNumber() : m_locator.getLineNumber();
  }

  
Return the column number where the current document event ends.
Warning: The return value from the method
is intended only as an approximation for the sake of error
reporting; it is not intended to provide sufficient information
to edit the character content of the original XML document.
The return value is an approximation of the column number
in the document entity or external parsed entity where the
markup triggering the event appears.
See Also:
getLineNumber
Returns:
The column number, or -1 if none is available./**
   * Return the column number where the current document event ends.
   *
   * <p><strong>Warning:</strong> The return value from the method
   * is intended only as an approximation for the sake of error
   * reporting; it is not intended to provide sufficient information
   * to edit the character content of the original XML document.</p>
   *
   * <p>The return value is an approximation of the column number
   * in the document entity or external parsed entity where the
   * markup triggering the event appears.</p>
   *
   * @return The column number, or -1 if none is available.
   * @see #getLineNumber
   */
  public int getColumnNumber()
  {
    return (null == m_locator) ? super.getColumnNumber() : m_locator.getColumnNumber();
  }
}