content: /*
   * Copyright 1999-2017 Alibaba Group Holding Ltd.
   *
   * 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.
   */
  package com.alibaba.druid.wall.spi;
  
  import com.alibaba.druid.DbType;
  import com.alibaba.druid.sql.dialect.clickhouse.parser.CKStatementParser;
  import com.alibaba.druid.sql.dialect.clickhouse.visitor.CKExportParameterVisitor;
  import com.alibaba.druid.sql.parser.SQLParserFeature;
  import com.alibaba.druid.sql.parser.SQLStatementParser;
  import com.alibaba.druid.sql.visitor.ExportParameterVisitor;
  import com.alibaba.druid.wall.WallConfig;
  import com.alibaba.druid.wall.WallProvider;
  import com.alibaba.druid.wall.WallVisitor;
  
  public class CKWallProvider extends WallProvider {
      public static final String DEFAULT_CONFIG_DIR = "META-INF/druid/wall/clickhouse";
  
      public CKWallProvider() {
          this(new WallConfig(DEFAULT_CONFIG_DIR));
      }
  
      public CKWallProvider(WallConfig config) {
          super(config, DbType.clickhouse);
      }
  
      @Override
      public SQLStatementParser createParser(String sql) {
          return new CKStatementParser(sql, SQLParserFeature.EnableSQLBinaryOpExprGroup);
      }
  
      @Override
      public WallVisitor createWallVisitor() {
          return new ClickhouseWallVisitor(this);
      }
  
      @Override
      public ExportParameterVisitor createExportParameterVisitor() {
          return new CKExportParameterVisitor();
      }
  
  }
  