content: /**
   * 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.activemq.broker;
  
  import java.io.IOException;
  
  import org.apache.activemq.Service;
  import org.apache.activemq.broker.region.ConnectionStatistics;
  import org.apache.activemq.command.Command;
  import org.apache.activemq.command.ConnectionControl;
  import org.apache.activemq.command.Response;
  
  /**
   *
   */
  public interface Connection extends Service {
  
      /**
       * @return the connector that created this connection.
       */
      Connector getConnector();
  
      /**
       * Sends a message to the client.
       *
       * @param message the message to send to the client.
       */
      void dispatchSync(Command message);
  
      /**
       * Sends a message to the client.
       *
       * @param command
       */
      void dispatchAsync(Command command);
  
      /**
       * Services a client command and submits it to the broker.
       *
       * @param command
       * @return Response
       */
      Response service(Command command);
  
      /**
       * Handles an unexpected error associated with a connection.
       *
       * @param error
       */
      void serviceException(Throwable error);
  
      /**
       * @return true if the Connection is slow
       */
      boolean isSlow();
  
      /**
       * @return if after being marked, the Connection is still writing
       */
      boolean isBlocked();
  
      /**
       * @return true if the Connection is connected
       */
      boolean isConnected();
  
      /**
       * @return true if the Connection is active
       */
      boolean isActive();
  
      /**
       * Returns the number of messages to be dispatched to this connection
       */
      int getDispatchQueueSize();
  
      /**
       * Returns the statistics for this connection
       */
      ConnectionStatistics getStatistics();
  
      /**
       * @return true if the Connection will process control commands
       */
      boolean isManageable();
  
      /**
       * @return the source address for this connection
       */
      String getRemoteAddress();
  
      void serviceExceptionAsync(IOException e);
  
      String getConnectionId();
  
      /**
       * return true if a network connection
       *
       * @return if this is a network connection
       */
      boolean isNetworkConnection();
  
      /**
       * @return true if a fault tolerant connection
       */
      boolean isFaultTolerantConnection();
  
      void updateClient(ConnectionControl control);
  
      /**
       * Returns the number of active transactions established on this Connection.
       *
       * @return the number of active transactions established on this Connection..
       */
      public int getActiveTransactionCount();
  
      /**
       * Returns the number of active transactions established on this Connection.
       *
       * @return the number of active transactions established on this Connection..
       */
      public Long getOldestActiveTransactionDuration();
  
      /**
       * Returns the time in ms since epoch when connection was established.
       *
       * @return time in ms since epoch when connection was established.
       */
      public Long getConnectedTimestamp();
  }
  