vpnservice/policyservice/impl/src/main/java/org/opendaylight/netvirt/policyservice/listeners/PolicyNodeListener.java

   1 /*
   2  * Copyright (c) 2017 Hewlett Packard Enterprise, Co. 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
   9 package org.opendaylight.netvirt.policyservice.listeners;
  10
  11 import java.math.BigInteger;
  12 import java.util.Collections;
  13
  14 import javax.annotation.PostConstruct;
  15 import javax.inject.Inject;
  16 import javax.inject.Singleton;
  17
  18 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
  19 import org.opendaylight.controller.md.sal.binding.api.WriteTransaction;
  20 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  21 import org.opendaylight.genius.datastoreutils.AsyncDataTreeChangeListenerBase;
  22 import org.opendaylight.genius.mdsalutil.MDSALUtil;
  23 import org.opendaylight.genius.mdsalutil.NwConstants;
  24 import org.opendaylight.netvirt.policyservice.util.PolicyServiceFlowUtil;
  25 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.FlowCapableNode;
  26 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.Nodes;
  27 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.nodes.Node;
  28 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  29 import org.slf4j.Logger;
  30 import org.slf4j.LoggerFactory;
  31
  32 @SuppressWarnings("deprecation")
  33 @Singleton
  34 public class PolicyNodeListener extends AsyncDataTreeChangeListenerBase<FlowCapableNode, PolicyNodeListener> {
  35     private static final Logger LOG = LoggerFactory.getLogger(PolicyNodeListener.class);
  36
  37     private final DataBroker dataBroker;
  38     private final PolicyServiceFlowUtil policyFlowUtil;
  39
  40     @Inject
  41     public PolicyNodeListener(final DataBroker dataBroker, final PolicyServiceFlowUtil policyFlowUtil) {
  42         this.dataBroker = dataBroker;
  43         this.policyFlowUtil = policyFlowUtil;
  44     }
  45
  46     @Override
  47     @PostConstruct
  48     public void init() {
  49         LOG.info("init");
  50         registerListener(LogicalDatastoreType.OPERATIONAL, dataBroker);
  51     }
  52
  53     @Override
  54     protected PolicyNodeListener getDataTreeChangeListener() {
  55         return this;
  56     }
  57
  58     @Override
  59     protected InstanceIdentifier<FlowCapableNode> getWildCardPath() {
  60         return InstanceIdentifier.create(Nodes.class).child(Node.class).augmentation(FlowCapableNode.class);
  61     }
  62
  63     @Override
  64     protected void remove(InstanceIdentifier<FlowCapableNode> key, FlowCapableNode flowCapableNode) {
  65
  66     }
  67
  68     @Override
  69     protected void update(InstanceIdentifier<FlowCapableNode> key, FlowCapableNode origFlowCapableNode,
  70             FlowCapableNode updatedFlowCapableNode) {
  71
  72     }
  73
  74     @Override
  75     protected void add(InstanceIdentifier<FlowCapableNode> key, FlowCapableNode flowCapableNode) {
  76         BigInteger dpId = MDSALUtil.getDpnIdFromNodeName(key.firstKeyOf(Node.class).getId());
  77         WriteTransaction tx = dataBroker.newWriteOnlyTransaction();
  78         createTableMissFlow(dpId, NwConstants.EGRESS_POLICY_CLASSIFIER_TABLE,
  79                 NwConstants.EGRESS_POLICY_CLASSIFIER_COOKIE, tx);
  80         createTableMissFlow(dpId, NwConstants.EGRESS_POLICY_ROUTING_TABLE, NwConstants.EGRESS_POLICY_ROUTING_COOKIE,
  81                 tx);
  82         tx.submit();
  83     }
  84
  85     private void createTableMissFlow(BigInteger dpId, short tableId, BigInteger cookie, WriteTransaction tx) {
  86         policyFlowUtil.updateFlowToTx(dpId, tableId, tableId + "_Miss", NwConstants.TABLE_MISS_PRIORITY, cookie,
  87                 Collections.emptyList(), policyFlowUtil.getTableMissInstructions(), NwConstants.ADD_FLOW, tx);
  88     }
  89
  90 }