/*
    * 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.  See the License for the
   * specific language governing permissions and limitations
   * under the License.
   */
  package org.apache.myfaces.shared.util.xml;
  
  import java.util.logging.Level;
  import java.util.logging.Logger;
  
  import org.xml.sax.ErrorHandler;
  import org.xml.sax.SAXParseException;
  
  /**
   * Convenient error handler for xml sax parsing.
   */
  public class MyFacesErrorHandler
          implements ErrorHandler
  {
      private Logger _log;
  
      public MyFacesErrorHandler(Logger log)
      {
          _log = log;
      }
  
      public void warning(SAXParseException exception)
      {
          if (_log.isLoggable(Level.WARNING))
          {
              _log.log(Level.WARNING, getMessage(exception), exception);
          }
      }
  
      public void error(SAXParseException exception)
      {
          _log.log(Level.SEVERE, getMessage(exception), exception);
      }
  
      public void fatalError(SAXParseException exception)
      {
          _log.log(Level.SEVERE, getMessage(exception), exception);
      }
  
      private String getMessage(SAXParseException exception)
      {
          StringBuilder buf = new StringBuilder();
          buf.append("SAXParseException at");
          buf.append(" URI=");
          buf.append(exception.getSystemId());
          buf.append(" Line=");
          buf.append(exception.getLineNumber());
          buf.append(" Column=");
          buf.append(exception.getColumnNumber());
          return buf.toString();
      }
  
  }