content: // XParseError.java - An error handler for xparse
  
  /*
   * 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 mf.org.apache.xml.resolver.apps;
  
  import org.xml.sax.ErrorHandler;
  import org.xml.sax.SAXParseException;
  
  import java.net.MalformedURLException;
  import java.net.URL;
  
  import mf.org.apache.xml.resolver.helpers.FileURL;
  
  
  /**
   * An ErrorHandler for xparse.
   * <p/>
   * <p>This class is just the error handler for xparse.</p>
   *
   * @author Norman Walsh
   *         <a href="mailto:Norman.Walsh@Sun.COM">Norman.Walsh@Sun.COM</a>
   * @version 1.0
   * @see xparse
   */
  public class XParseError implements ErrorHandler {
      /**
       * Show errors?
       */
      private boolean showErrors = true;
  
      /**
       * Show warnings?
       */
      private boolean showWarnings = false;
  
      /**
       * How many messages should be presented?
       */
      private int maxMessages = 10;
  
      /**
       * The number of fatal errors seen so far.
       */
      private int fatalCount = 0;
  
      /**
       * The number of errors seen so far.
       */
      private int errorCount = 0;
  
      /**
       * The number of warnings seen so far.
       */
      private int warningCount = 0;
  
      /**
       * The base URI of the running application.
       */
      private String baseURI = "";
  
      /**
       * Constructor
       */
      public XParseError(boolean errors, boolean warnings) {
          showErrors = errors;
          showWarnings = warnings;
  
          try {
              URL url = FileURL.makeURL("basename");
              baseURI = url.toString();
          } catch (MalformedURLException mue) {
              // nop;
          }
      }
  
      /**
       * Return the error count
       */
      public int getErrorCount() {
          return errorCount;
      }
  
      /**
       * Return the fatal error count
       */
      public int getFatalCount() {
          return fatalCount;
      }
  
      /**
       * Return the warning count
       */
      public int getWarningCount() {
          return warningCount;
      }
  
      /**
       * Return the number of messages to display
       */
      public int getMaxMessages() {
          return maxMessages;
      }
  
      /**
       * Set the number of messages to display
       */
      public void setMaxMessages(int max) {
          maxMessages = max;
      }
  
      /**
       * SAX2 API
       */
      @Override
      public void error(SAXParseException exception) {
          errorCount++;
          if (showErrors && (errorCount + warningCount < maxMessages)) {
              message("Error", exception);
          }
      }
  
      /**
       * SAX2 API
       */
      @Override
      public void fatalError(SAXParseException exception) {
          errorCount++;
          fatalCount++;
          if (showErrors && (errorCount + warningCount < maxMessages)) {
              message("Fatal error", exception);
          }
      }
  
      /**
       * SAX2 API
       */
      @Override
      public void warning(SAXParseException exception) {
          warningCount++;
          if (showWarnings && (errorCount + warningCount < maxMessages)) {
              message("Warning", exception);
          }
      }
  
      /**
       * Display a message to the user
       */
      private void message(String type, SAXParseException exception) {
          String filename = exception.getSystemId();
          if (filename.startsWith(baseURI)) {
              filename = filename.substring(baseURI.length());
          }
  
          System.out.print(type
                  + ":"
                  + filename
                  + ":"
                  + exception.getLineNumber());
  
          if (exception.getColumnNumber() > 0) {
              System.out.print(":" + exception.getColumnNumber());
          }
  
          System.out.println(":" + exception.getMessage());
      }
  }
  