content: /*
   * Copyright 1999-2012 Alibaba Group.
   *  
   * 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.cobar.manager.response;
  
  import java.util.Map;
  
  import com.alibaba.cobar.CobarConfig;
  import com.alibaba.cobar.CobarServer;
  import com.alibaba.cobar.config.ErrorCode;
  import com.alibaba.cobar.config.model.SchemaConfig;
  import com.alibaba.cobar.manager.ManagerConnection;
  import com.alibaba.cobar.mysql.MySQLDataNode;
  import com.alibaba.cobar.mysql.MySQLDataSource;
  import com.alibaba.cobar.net.mysql.OkPacket;
  
  /**
   * @author xianmao.hexm 2012-4-16
   */
  public class ClearSlow {
  
      public static void dataNode(ManagerConnection c, String name) {
          MySQLDataNode dn = CobarServer.getInstance().getConfig().getDataNodes().get(name);
          MySQLDataSource ds = null;
          if (dn != null && (ds = dn.getSource()) != null) {
              ds.getSqlRecorder().clear();
              c.write(c.writeToBuffer(OkPacket.OK, c.allocate()));
          } else {
              c.writeErrMessage(ErrorCode.ER_YES, "Invalid DataNode:" + name);
          }
      }
  
      public static void schema(ManagerConnection c, String name) {
          CobarConfig conf = CobarServer.getInstance().getConfig();
          SchemaConfig schema = conf.getSchemas().get(name);
          if (schema != null) {
              Map<String, MySQLDataNode> dataNodes = conf.getDataNodes();
              for (String n : schema.getAllDataNodes()) {
                  MySQLDataNode dn = dataNodes.get(n);
                  MySQLDataSource ds = null;
                  if (dn != null && (ds = dn.getSource()) != null) {
                      ds.getSqlRecorder().clear();
                  }
              }
              c.write(c.writeToBuffer(OkPacket.OK, c.allocate()));
          } else {
              c.writeErrMessage(ErrorCode.ER_YES, "Invalid Schema:" + name);
          }
      }
  
  }
  