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;
  
  import java.io.EOFException;
  import java.nio.channels.SocketChannel;
  
  import org.apache.log4j.Logger;
  
  import com.alibaba.cobar.CobarServer;
  import com.alibaba.cobar.config.ErrorCode;
  import com.alibaba.cobar.net.FrontendConnection;
  import com.alibaba.cobar.util.TimeUtil;
  
  /**
   * @author xianmao.hexm 2011-4-22 下午02:23:55
   */
  public class ManagerConnection extends FrontendConnection {
      private static final Logger LOGGER = Logger.getLogger(ManagerConnection.class);
      private static final long AUTH_TIMEOUT = 15 * 1000L;
  
      public ManagerConnection(SocketChannel channel) {
          super(channel);
      }
  
      @Override
      public boolean isIdleTimeout() {
          if (isAuthenticated) {
              return super.isIdleTimeout();
          } else {
              return TimeUtil.currentTimeMillis() > Math.max(lastWriteTime, lastReadTime) + AUTH_TIMEOUT;
          }
      }
  
      @Override
      public void handle(final byte[] data) {
          CobarServer.getInstance().getManagerExecutor().execute(new Runnable() {
              @Override
              public void run() {
                  try {
                      handler.handle(data);
                  } catch (Throwable t) {
                      error(ErrorCode.ERR_HANDLE_DATA, t);
                  }
              }
          });
      }
  
      @Override
      public void error(int errCode, Throwable t) {
          // 根据异常类型和信息，选择日志输出级别。
          if (t instanceof EOFException) {
              if (LOGGER.isDebugEnabled()) {
                  LOGGER.debug(toString(), t);
              }
          } else if (isConnectionReset(t)) {
              if (LOGGER.isInfoEnabled()) {
                  LOGGER.info(toString(), t);
              }
          } else {
              LOGGER.warn(toString(), t);
          }
  
          // 异常返回码处理
          switch (errCode) {
          case ErrorCode.ERR_HANDLE_DATA:
              String msg = t.getMessage();
              writeErrMessage(ErrorCode.ER_YES, msg == null ? t.getClass().getSimpleName() : msg);
              break;
          default:
              close();
          }
      }
  
  }
  