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   *  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
   *
   *    https://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
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  package org.apache.cayenne.dbsync.xml;
  
  import org.apache.cayenne.configuration.xml.NamespaceAwareNestedTagHandler;
  import org.apache.cayenne.dbsync.reverse.dbimport.ExcludeColumn;
  import org.apache.cayenne.dbsync.reverse.dbimport.FilterContainer;
  import org.apache.cayenne.dbsync.reverse.dbimport.IncludeColumn;
  import org.apache.cayenne.dbsync.reverse.dbimport.IncludeTable;
  import org.xml.sax.Attributes;
  import org.xml.sax.SAXException;
  
  /**
   * @since 4.1
   */
  class IncludeTableHandler extends NamespaceAwareNestedTagHandler {
  
      private static final String INCLUDE_TABLE_TAG = "includeTable";
      private static final String INCLUDE_TABLE_NAME_TAG = "name";
      private static final String INCLUDE_COLUMN_TAG = "includeColumn";
      private static final String EXCLUDE_COLUMN_TAG = "excludeColumn";
  
      private IncludeTable includeTable;
  
      private FilterContainer entity;
  
      IncludeTableHandler(NamespaceAwareNestedTagHandler parentHandler,FilterContainer entity) {
          super(parentHandler);
          this.entity = entity;
      }
  
      @Override
      protected boolean processElement(String namespaceURI, String localName, Attributes attributes) throws SAXException {
          switch (localName) {
              case INCLUDE_TABLE_TAG:
                  return true;
          }
  
          return false;
      }
  
      @Override
      protected boolean processCharData(String localName, String data) {
          switch (localName) {
              case INCLUDE_TABLE_NAME_TAG:
                  createIncludeTableName(data);
                  break;
              case INCLUDE_COLUMN_TAG:
                  createIncludeColumn(data);
                  break;
              case EXCLUDE_COLUMN_TAG:
                  createExcludeColumn(data);
                  break;
          }
          return true;
      }
  
      private void createExcludeColumn(String excludeColumn) {
          if (excludeColumn.trim().length() == 0) {
              return;
          }
  
          if (includeTable != null) {
              includeTable.addExcludeColumn(new ExcludeColumn(excludeColumn));
          }
      }
  
      private void createIncludeColumn(String includeColumn) {
          if (includeColumn.trim().length() == 0) {
              return;
          }
  
          if (includeTable != null) {
              includeTable.addIncludeColumn(new IncludeColumn(includeColumn));
          }
      }
  
      private void createIncludeTableName(String includeTableName) {
          if (includeTableName.trim().length() == 0) {
              return;
          }
  
          if (includeTable == null) {
              createIncludeTable();
          }
  
          if (includeTable != null) {
              includeTable.setName(includeTableName);
          }
      }
  
      private void createIncludeTable() {
          includeTable = new IncludeTable();
          entity.addIncludeTable(includeTable);
      }
  }
  