Java example source code file (SAXSourceLocator.java)

This example Java source code file (SAXSourceLocator.java) is included in the alvinalexander.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Learn more about this Java project at its project page.

Java - Java tags/keywords

locatorimpl, sax, saxsourcelocator, serializable, sourcelocator, string

The SAXSourceLocator.java Java example source code

/*
 * reserved comment block
 * DO NOT REMOVE OR ALTER!
 */
/*
 * Copyright 1999-2004 The Apache Software Foundation.
 *
 * Licensed 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.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
/*
 * $Id: SAXSourceLocator.java,v 1.2.4.1 2005/09/15 08:15:52 suresh_emailid Exp $
 */
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.
 */
public class SAXSourceLocator extends LocatorImpl
        implements SourceLocator, Serializable
{
    static final long serialVersionUID = 3181680946321164112L;
  /** The SAX Locator object.
   *  @serial
   */
  Locator m_locator;

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

  /**
   * 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
   *
   *
   * @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
   *
   *
   * @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.
   *
   * <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.
   *
   * <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.
   *
   * <p>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.</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.
   *
   * <p>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.</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();
  }
}