openflow_netty/src/main/java/org/opendaylight/controller/protocol_plugin/openflow/core/internal/OFChannelState.java

   1 package org.opendaylight.controller.protocol_plugin.openflow.core.internal;
   2
   3 import java.util.ArrayList;
   4 import java.util.List;
   5
   6 import org.openflow.protocol.OFFeaturesReply;
   7 import org.openflow.protocol.OFMessage;
   8 import org.openflow.protocol.statistics.OFDescriptionStatistics;
   9
  10 /**
  11  * Wrapper class to hold state for the OpenFlow switch connection
  12  * @author readams
  13  */
  14 class OFChannelState {
  15
  16     /**
  17      * State for handling the switch handshake
  18      */
  19     protected enum HandshakeState {
  20         /**
  21          * Beginning state
  22          */
  23         START,
  24
  25         /**
  26          * Received HELLO from switch
  27          */
  28         HELLO,
  29
  30         /**
  31          * We've received the features reply
  32          * Waiting for Config and Description reply
  33          */
  34         FEATURES_REPLY,
  35
  36         /**
  37          * Switch is ready for processing messages
  38          */
  39         READY
  40
  41     }
  42
  43     protected volatile HandshakeState hsState = HandshakeState.START;
  44     protected boolean hasGetConfigReply = false;
  45     protected boolean hasDescription = false;
  46     protected boolean switchBindingDone = false;
  47
  48     protected OFFeaturesReply featuresReply = null;
  49     protected OFDescriptionStatistics description = null;
  50     protected List<OFMessage> queuedOFMessages = new ArrayList<OFMessage>();
  51 }