bgp/rib-impl/src/main/java/org/opendaylight/protocol/bgp/rib/impl/ApplicationPeer.java

   1 /*
   2  * Copyright (c) 2014 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.protocol.bgp.rib.impl;
   9
  10 import com.google.common.base.Preconditions;
  11 import com.google.common.base.Verify;
  12 import com.google.common.net.InetAddresses;
  13 import java.util.Arrays;
  14 import java.util.Collection;
  15 import org.opendaylight.controller.md.sal.common.api.data.AsyncTransaction;
  16 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  17 import org.opendaylight.controller.md.sal.common.api.data.TransactionChain;
  18 import org.opendaylight.controller.md.sal.common.api.data.TransactionChainListener;
  19 import org.opendaylight.controller.md.sal.dom.api.DOMDataTreeChangeListener;
  20 import org.opendaylight.controller.md.sal.dom.api.DOMDataWriteTransaction;
  21 import org.opendaylight.controller.md.sal.dom.api.DOMTransactionChain;
  22 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev100924.Ipv4Address;
  23 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.rib.rev130925.ApplicationRibId;
  24 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.rib.rev130925.PeerRole;
  25 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.rib.rev130925.bgp.rib.rib.Peer;
  26 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.rib.rev130925.bgp.rib.rib.peer.AdjRibIn;
  27 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.rib.rev130925.rib.Tables;
  28 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
  29 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeIdentifierWithPredicates;
  30 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.PathArgument;
  31 import org.opendaylight.yangtools.yang.data.api.schema.tree.DataTreeCandidate;
  32 import org.opendaylight.yangtools.yang.data.api.schema.tree.DataTreeCandidateNode;
  33 import org.slf4j.Logger;
  34 import org.slf4j.LoggerFactory;
  35
  36 public class ApplicationPeer implements AutoCloseable, org.opendaylight.protocol.bgp.rib.spi.Peer, DOMDataTreeChangeListener, TransactionChainListener {
  37
  38     private static final Logger LOG = LoggerFactory.getLogger(ApplicationPeer.class);
  39
  40     private final byte[] rawIdentifier;
  41     private final RIBImpl targetRib;
  42     private final String name;
  43     private final YangInstanceIdentifier adjRibsInId;
  44     private final DOMTransactionChain chain;
  45     private final DOMTransactionChain writerChain;
  46
  47     private AdjRibInWriter writer;
  48
  49     public ApplicationPeer(final ApplicationRibId applicationRibId, final Ipv4Address ipAddress, final RIBImpl targetRib) {
  50         this.name = applicationRibId.getValue().toString();
  51         this.targetRib = Preconditions.checkNotNull(targetRib);
  52         this.rawIdentifier = InetAddresses.forString(ipAddress.getValue()).getAddress();
  53         final NodeIdentifierWithPredicates peerId = IdentifierUtils.domPeerId(RouterIds.createPeerId(ipAddress));
  54         this.adjRibsInId = this.targetRib.getYangRibId().node(Peer.QNAME).node(peerId).node(AdjRibIn.QNAME).node(Tables.QNAME);
  55         this.chain = this.targetRib.createPeerChain(this);
  56         this.writerChain = this.targetRib.createPeerChain(this);
  57         this.writer = AdjRibInWriter.create(this.targetRib.getYangRibId(), PeerRole.Ibgp, this.writerChain);
  58         // FIXME: set to true, once it's fixed how to skip advertising routes back to AppPeer
  59         this.writer = this.writer.transform(RouterIds.createPeerId(ipAddress), this.targetRib.getRibSupportContext(), this.targetRib.getLocalTablesKeys(), false);
  60     }
  61
  62     @Override
  63     public void onDataTreeChanged(final Collection<DataTreeCandidate> changes) {
  64         final DOMDataWriteTransaction tx = this.chain.newWriteOnlyTransaction();
  65         LOG.debug("Received data change to ApplicationRib {}", changes);
  66         for (final DataTreeCandidate tc : changes) {
  67             LOG.debug("Modification Type {}", tc.getRootNode().getModificationType());
  68             final YangInstanceIdentifier path = tc.getRootPath();
  69             final PathArgument lastArg = path.getLastPathArgument();
  70             Verify.verify(lastArg instanceof NodeIdentifierWithPredicates, "Unexpected type %s in path %s", lastArg.getClass(), path);
  71             final NodeIdentifierWithPredicates tableKey = (NodeIdentifierWithPredicates) lastArg;
  72             for (final DataTreeCandidateNode child : tc.getRootNode().getChildNodes()) {
  73                 final YangInstanceIdentifier tableId = this.adjRibsInId.node(tableKey).node(child.getIdentifier());
  74                 if (child.getDataAfter().isPresent()) {
  75                     LOG.trace("App peer -> AdjRibsIn path : {}", tableId);
  76                     LOG.trace("App peer -> AdjRibsIn data : {}", child.getDataAfter().get());
  77                     tx.put(LogicalDatastoreType.OPERATIONAL, tableId, child.getDataAfter().get());
  78                 }
  79             }
  80         }
  81         tx.submit();
  82     }
  83
  84     @Override
  85     public String getName() {
  86         return this.name;
  87     }
  88
  89     @Override
  90     public void close() {
  91         this.writer.cleanTables(this.targetRib.getLocalTablesKeys());
  92         this.chain.close();
  93         this.writerChain.close();
  94     }
  95
  96     @Override
  97     public byte[] getRawIdentifier() {
  98         return Arrays.copyOf(this.rawIdentifier, this.rawIdentifier.length);
  99     }
 100
 101     @Override
 102     public void onTransactionChainFailed(final TransactionChain<?, ?> chain, final AsyncTransaction<?, ?> transaction,
 103         final Throwable cause) {
 104         LOG.error("Transaction chain failed.", cause);
 105     }
 106
 107     @Override
 108     public void onTransactionChainSuccessful(final TransactionChain<?, ?> chain) {
 109         LOG.debug("Transaction chain {} successfull.", chain);
 110     }
 111 }