/*
    * 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.shardingsphere.shadow.route;
  
  import org.apache.shardingsphere.infra.annotation.HighFrequencyInvocation;
  import org.apache.shardingsphere.infra.config.props.ConfigurationProperties;
  import org.apache.shardingsphere.infra.metadata.database.ShardingSphereDatabase;
  import org.apache.shardingsphere.infra.metadata.database.rule.RuleMetaData;
  import org.apache.shardingsphere.infra.route.SQLRouter;
  import org.apache.shardingsphere.infra.route.context.RouteContext;
  import org.apache.shardingsphere.infra.session.connection.ConnectionContext;
  import org.apache.shardingsphere.infra.session.query.QueryContext;
  import org.apache.shardingsphere.shadow.constant.ShadowOrder;
  import org.apache.shardingsphere.shadow.route.engine.ShadowRouteEngineFactory;
  import org.apache.shardingsphere.shadow.rule.ShadowRule;
  
  /**
   * Shadow SQL router.
   */
  @HighFrequencyInvocation
  public final class ShadowSQLRouter implements SQLRouter<ShadowRule> {
      
      @Override
      public RouteContext createRouteContext(final QueryContext queryContext, final RuleMetaData globalRuleMetaData, final ShardingSphereDatabase database,
                                             final ShadowRule rule, final ConfigurationProperties props, final ConnectionContext connectionContext) {
          // TODO
          return new RouteContext();
      }
      
      @Override
      public void decorateRouteContext(final RouteContext routeContext, final QueryContext queryContext, final ShardingSphereDatabase database,
                                       final ShadowRule rule, final ConfigurationProperties props, final ConnectionContext connectionContext) {
          ShadowRouteEngineFactory.newInstance(queryContext).route(routeContext, rule);
      }
      
      @Override
      public int getOrder() {
          return ShadowOrder.ORDER;
      }
      
      @Override
      public Class<ShadowRule> getTypeClass() {
          return ShadowRule.class;
      }
  }