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     /**
  51      * dependencymanager requirement
  52      * @param switchConnectionProviderArg
  53      */
  54     public void unsetSwitchConnectionProvider(SwitchConnectionProvider switchConnectionProviderArg) {
  55         switchConnectionProvider = null;
  56     }
  57
  58     /**
  59      * dependencymanager requirement
  60      * @param switchConnectionProvider
  61      */
  62     public void setSwitchConnectionProvider(
  63             SwitchConnectionProvider switchConnectionProvider) {
  64         this.switchConnectionProvider = switchConnectionProvider;
  65         registerProvider();
  66     }
  67
  68     /**
  69      * @return osgi context
  70      */
  71     public BundleContext getContext() {
  72         return context;
  73     }
  74
  75     /**
  76      * dependencymanager requirement
  77      * @param context
  78      */
  79     public void setContext(BundleContext context) {
  80         this.context = context;
  81     }
  82
  83     @Override
  84     public void onSessionInitiated(ProviderContext session) {
  85         LOG.debug("onSessionInitiated");
  86         messageCountProvider = new MessageSpyCounterImpl();
  87         registrationManager = new SalRegistrationManager();
  88         registrationManager.onSessionInitiated(session);
  89         mdController = new MDController();
  90         mdController.setSwitchConnectionProvider(switchConnectionProvider);
  91         mdController.setMessageSpyCounter(messageCountProvider);
  92         mdController.init();
  93         mdController.start();
  94         messageCountCommandProvider = new MessageCountCommandProvider(context, messageCountProvider);
  95         messageCountCommandProvider.onSessionInitiated(session);
  96     }
  97
  98     @Override
  99     public void close() {
 100         LOG.debug("close");
 101         mdController.stop();
 102         mdController = null;
 103         registrationManager.close();
 104         registrationManager = null;
 105         messageCountCommandProvider.close();
 106         messageCountCommandProvider = null;
 107     }
 108
 109     @Override
 110     public void onSessionInitialized(ConsumerContext session) {
 111         // NOOP
 112     }
 113
 114     @Override
 115     public Collection<? extends ProviderFunctionality> getFunctionality() {
 116         return Collections.emptySet();
 117     }
 118
 119     @Override
 120     public java.util.Collection<? extends RpcService> getImplementations() {
 121         return Collections.emptySet();
 122     }
 123
 124     /**
 125      * @return BA default broker
 126      */
 127     public BindingAwareBroker getBroker() {
 128         return broker;
 129     }
 130
 131     /**
 132      * dependencymanager requirement
 133      * @param broker
 134      */
 135     public void setBroker(BindingAwareBroker broker) {
 136         this.broker = broker;
 137         registerProvider();
 138     }
 139
 140     /**
 141      * dependencymanager requirement
 142      * @param brokerArg
 143      */
 144     public void unsetBroker(BindingAwareBroker brokerArg) {
 145         this.broker = null;
 146     }
 147
 148     private boolean hasAllDependencies(){
 149         if(this.broker != null && this.switchConnectionProvider != null) {
 150             return true;
 151         }
 152         return false;
 153     }
 154     private void registerProvider() {
 155         if(hasAllDependencies()) {
 156             this.broker.registerProvider(this,context);
 157         }
 158     }
 159  }