openflowplugin/src/main/java/org/opendaylight/openflowplugin/openflow/md/core/sal/OpenflowPluginProvider.java

   1 /**
   2  * Copyright (c) 2013 Cisco Systems, Inc. and others.  All rights reserved.
   3  *
   4  * This program and the accompanying materials are made available under the
   5  * terms of the Eclipse Public License v1.0 which accompanies this distribution,
   6  * and is available at http://www.eclipse.org/legal/epl-v10.html
   7  */
   8 package org.opendaylight.openflowplugin.openflow.md.core.sal;
   9
  10 import java.util.Collection;
  11 import java.util.Collections;
  12
  13 import org.opendaylight.controller.sal.binding.api.BindingAwareBroker;
  14 import org.opendaylight.controller.sal.binding.api.BindingAwareBroker.ConsumerContext;
  15 import org.opendaylight.controller.sal.binding.api.BindingAwareBroker.ProviderContext;
  16 import org.opendaylight.controller.sal.binding.api.BindingAwareProvider;
  17 import org.opendaylight.openflowjava.protocol.spi.connection.SwitchConnectionProvider;
  18 import org.opendaylight.openflowplugin.openflow.md.core.MDController;
  19 import org.opendaylight.openflowplugin.openflow.md.core.cmd.MessageCountCommandProvider;
  20 import org.opendaylight.openflowplugin.openflow.md.queue.MessageObservatory;
  21 import org.opendaylight.openflowplugin.openflow.md.queue.MessageSpyCounterImpl;
  22 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.OfHeader;
  23 import org.opendaylight.yangtools.yang.binding.DataObject;
  24 import org.opendaylight.yangtools.yang.binding.RpcService;
  25 import org.osgi.framework.BundleContext;
  26 import org.slf4j.Logger;
  27 import org.slf4j.LoggerFactory;
  28
  29 /**
  30  * OFPlugin provider implementation
  31  */
  32 public class OpenflowPluginProvider implements BindingAwareProvider, AutoCloseable {
  33
  34     private static Logger LOG = LoggerFactory.getLogger(OpenflowPluginProvider.class);
  35
  36     private BindingAwareBroker broker;
  37
  38     private BundleContext context;
  39
  40     private SwitchConnectionProvider switchConnectionProvider;
  41
  42     private MDController mdController;
  43
  44     private MessageCountCommandProvider messageCountCommandProvider;
  45
  46     private MessageObservatory<OfHeader, DataObject> messageCountProvider;
  47
  48     private SalRegistrationManager registrationManager;
  49
  50     public void unsetSwitchConnectionProvider() {
  51         switchConnectionProvider = null;
  52     }
  53
  54     public void setSwitchConnectionProvider(
  55             SwitchConnectionProvider switchConnectionProvider) {
  56         this.switchConnectionProvider = switchConnectionProvider;
  57         registerProvider();
  58     }
  59
  60     public BundleContext getContext() {
  61         return context;
  62     }
  63
  64     public void setContext(BundleContext context) {
  65         this.context = context;
  66     }
  67
  68     @Override
  69     public void onSessionInitiated(ProviderContext session) {
  70         LOG.debug("onSessionInitiated");
  71         messageCountProvider = new MessageSpyCounterImpl();
  72         registrationManager = new SalRegistrationManager();
  73         registrationManager.onSessionInitiated(session);
  74         mdController = new MDController();
  75         mdController.setSwitchConnectionProvider(switchConnectionProvider);
  76         mdController.setMessageSpyCounter(messageCountProvider);
  77         mdController.init();
  78         mdController.start();
  79         messageCountCommandProvider = new MessageCountCommandProvider(context, messageCountProvider);
  80         messageCountCommandProvider.onSessionInitiated(session);
  81     }
  82
  83     @Override
  84     public void close() {
  85         LOG.debug("close");
  86         mdController.stop();
  87         mdController = null;
  88         registrationManager.close();
  89         registrationManager = null;
  90         messageCountCommandProvider.close();
  91         messageCountCommandProvider = null;
  92     }
  93
  94     @Override
  95     public void onSessionInitialized(ConsumerContext session) {
  96         // NOOP
  97     }
  98
  99     @Override
 100     public Collection<? extends ProviderFunctionality> getFunctionality() {
 101         return Collections.emptySet();
 102     }
 103
 104     @Override
 105     public java.util.Collection<? extends RpcService> getImplementations() {
 106         return Collections.emptySet();
 107     }
 108
 109     public BindingAwareBroker getBroker() {
 110         return broker;
 111     }
 112
 113     public void setBroker(BindingAwareBroker broker) {
 114         this.broker = broker;
 115         registerProvider();
 116     }
 117
 118     public void unsetBroker(BindingAwareBroker broker) {
 119         this.broker = null;
 120     }
 121
 122     private boolean hasAllDependencies(){
 123         if(this.broker != null && this.switchConnectionProvider != null) {
 124             return true;
 125         }
 126         return false;
 127     }
 128     private void registerProvider() {
 129         if(hasAllDependencies()) {
 130             this.broker.registerProvider(this,context);
 131         }
 132     }
 133  }