/*
    * 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.maven.plugins.changes.schema;
  
  import java.util.ArrayList;
  import java.util.List;
  
  import org.xml.sax.Attributes;
  import org.xml.sax.SAXException;
  import org.xml.sax.SAXParseException;
  import org.xml.sax.helpers.DefaultHandler;
  
  /**
   * @author Olivier Lamy
   * @since 28 juil. 2008
   * @version $Id$
   */
  public class XmlValidationHandler extends DefaultHandler {
  
      private boolean parsingError = false;
  
      private List<SAXParseException> errors = new ArrayList<>();
  
      private List<SAXParseException> fatalErrors = new ArrayList<>();
  
      private List<SAXParseException> warnings = new ArrayList<>();
  
      private boolean failOnValidationError;
  
      /**
       * @param failOnValidationError If fail on validation error.
       */
      public XmlValidationHandler(boolean failOnValidationError) {
          this.failOnValidationError = failOnValidationError;
      }
  
      /**
       * @see org.xml.sax.ErrorHandler#error(org.xml.sax.SAXParseException)
       */
      public void error(SAXParseException excp) throws SAXException {
          this.setErrorParsing(true);
          this.errors.add(excp);
          if (this.failOnValidationError) {
              throw new SAXException(excp.getMessage(), excp);
          }
      }
  
      /**
       * @see org.xml.sax.ErrorHandler#fatalError(org.xml.sax.SAXParseException)
       */
      public void fatalError(SAXParseException excp) throws SAXException {
          this.fatalErrors.add(excp);
          if (this.failOnValidationError) {
              throw new SAXException(excp.getMessage(), excp);
          }
      }
  
      /**
       * @see org.xml.sax.ErrorHandler#warning(org.xml.sax.SAXParseException)
       */
      public void warning(SAXParseException excp) {
          this.warnings.add(excp);
      }
  
      /**
       * @see org.xml.sax.ContentHandler#startElement(String, String, String, Attributes)
       */
      public void startElement(String uri, String localName, String qName, Attributes attributes) {
          // nothing
      }
  
      /**
       * @return Returns the errorParsing.
       */
      public boolean isErrorParsing() {
          return this.parsingError;
      }
  
      /**
       * @param error The errorParsing to set.
       */
      public void setErrorParsing(boolean error) {
          this.parsingError = error;
     }
 
     public List<SAXParseException> getErrors() {
         return errors;
     }
 
     public void setErrors(List<SAXParseException> errors) {
         this.errors = errors;
     }
 
     public List<SAXParseException> getFatalErrors() {
         return fatalErrors;
     }
 
     public void setFatalErrors(List<SAXParseException> fatalErrors) {
         this.fatalErrors = fatalErrors;
     }
 
     public List<SAXParseException> getWarnings() {
         return warnings;
     }
 
     public void setWarnings(List<SAXParseException> warnings) {
         this.warnings = warnings;
     }
 }