vpnservice/bgpmanager/bgpmanager-impl/src/main/java/org/opendaylight/netvirt/bgpmanager/BgpUtil.java

   1 /*
   2  * Copyright (c) 2015 Ericsson India Global Services Pvt Ltd. 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.netvirt.bgpmanager;
   9
  10 import com.google.common.base.Optional;
  11 import com.google.common.util.concurrent.ThreadFactoryBuilder;
  12
  13 import java.util.concurrent.BlockingQueue;
  14 import java.util.concurrent.ExecutionException;
  15 import java.util.concurrent.ExecutorService;
  16 import java.util.concurrent.Executors;
  17 import java.util.concurrent.LinkedBlockingQueue;
  18 import java.util.concurrent.ThreadFactory;
  19 import java.util.concurrent.TimeoutException;
  20 import java.util.concurrent.atomic.AtomicInteger;
  21
  22 import org.opendaylight.controller.md.sal.binding.api.BindingTransactionChain;
  23 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
  24 import org.opendaylight.controller.md.sal.common.api.data.AsyncTransaction;
  25 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  26 import org.opendaylight.controller.md.sal.common.api.data.ReadFailedException;
  27 import org.opendaylight.controller.md.sal.common.api.data.TransactionChain;
  28 import org.opendaylight.controller.md.sal.common.api.data.TransactionChainListener;
  29 import org.opendaylight.genius.datastoreutils.SingleTransactionDataBroker;
  30 import org.opendaylight.genius.mdsalutil.MDSALUtil;
  31 import org.opendaylight.genius.utils.batching.ActionableResource;
  32 import org.opendaylight.genius.utils.batching.ActionableResourceImpl;
  33 import org.opendaylight.genius.utils.batching.ResourceBatchingManager;
  34 import org.opendaylight.genius.utils.batching.ResourceHandler;
  35 import org.opendaylight.netvirt.bgpmanager.thrift.gen.encap_type;
  36 import org.opendaylight.netvirt.bgpmanager.thrift.gen.protocol_type;
  37 import org.opendaylight.yang.gen.v1.urn.ericsson.params.xml.ns.yang.ebgp.rev150901.BgpControlPlaneType;
  38 import org.opendaylight.yang.gen.v1.urn.ericsson.params.xml.ns.yang.ebgp.rev150901.EncapType;
  39 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.l3vpn.rev130911.VpnInstanceOpData;
  40 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.l3vpn.rev130911.vpn.instance.op.data.VpnInstanceOpDataEntry;
  41 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.l3vpn.rev130911.vpn.instance.op.data.VpnInstanceOpDataEntryKey;
  42 import org.opendaylight.yangtools.yang.binding.DataObject;
  43 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  44 import org.slf4j.Logger;
  45 import org.slf4j.LoggerFactory;
  46
  47 public class BgpUtil {
  48     private static final Logger LOG = LoggerFactory.getLogger(BgpUtil.class);
  49     private static DataBroker dataBroker;
  50     private static BindingTransactionChain fibTransact;
  51     public static final int PERIODICITY = 500;
  52     private static AtomicInteger pendingWrTransaction = new AtomicInteger(0);
  53     public static final int BATCH_SIZE = 1000;
  54     public static Integer batchSize;
  55     public static Integer batchInterval;
  56     private static int txChainAttempts = 0;
  57
  58     private static BlockingQueue<ActionableResource> bgpResourcesBufferQ = new LinkedBlockingQueue<>();
  59
  60     // return number of pending Write Transactions with BGP-Util (no read)
  61     public static int getGetPendingWrTransaction() {
  62         return pendingWrTransaction.get();
  63     }
  64
  65     static ThreadFactory namedThreadFactory = new ThreadFactoryBuilder()
  66             .setNameFormat("bgp-util-mdsal-%d").build();
  67
  68     static ExecutorService threadPool = Executors.newFixedThreadPool(1, namedThreadFactory);
  69
  70
  71     static synchronized BindingTransactionChain getTransactionChain() {
  72         return fibTransact;
  73     }
  74
  75     static void registerWithBatchManager(ResourceHandler resourceHandler) {
  76         ResourceBatchingManager resBatchingManager = ResourceBatchingManager.getInstance();
  77         resBatchingManager.registerBatchableResource("BGP-RESOURCES", bgpResourcesBufferQ, resourceHandler);
  78     }
  79
  80     static <T extends DataObject> void update(DataBroker broker, final LogicalDatastoreType datastoreType,
  81                                               final InstanceIdentifier<T> path, final T data) {
  82         ActionableResource actResource = new ActionableResourceImpl(path.toString());
  83         actResource.setAction(ActionableResource.UPDATE);
  84         actResource.setInstanceIdentifier(path);
  85         actResource.setInstance(data);
  86         bgpResourcesBufferQ.add(actResource);
  87     }
  88
  89     public static <T extends DataObject> void write(DataBroker broker, final LogicalDatastoreType datastoreType,
  90                                                     final InstanceIdentifier<T> path, final T data) {
  91         ActionableResource actResource = new ActionableResourceImpl(path.toString());
  92         actResource.setAction(ActionableResource.CREATE);
  93         actResource.setInstanceIdentifier(path);
  94         actResource.setInstance(data);
  95         bgpResourcesBufferQ.add(actResource);
  96     }
  97
  98     static <T extends DataObject> void delete(DataBroker broker, final LogicalDatastoreType datastoreType,
  99                                               final InstanceIdentifier<T> path) {
 100         ActionableResource actResource = new ActionableResourceImpl(path.toString());
 101         actResource.setAction(ActionableResource.DELETE);
 102         actResource.setInstanceIdentifier(path);
 103         actResource.setInstance(null);
 104         bgpResourcesBufferQ.add(actResource);
 105     }
 106
 107     public static void setBroker(final DataBroker broker) {
 108         BgpUtil.dataBroker = broker;
 109         initTransactionChain();
 110     }
 111
 112     static synchronized void initTransactionChain() {
 113         if (fibTransact != null) {
 114             fibTransact.close();
 115             LOG.error("*** TxChain Close, *** Attempts: {}", txChainAttempts);
 116             fibTransact = null;
 117         }
 118         BgpUtil.fibTransact = dataBroker.createTransactionChain(new BgpUtilTransactionChainListener());
 119         txChainAttempts++;
 120     }
 121
 122     static class BgpUtilTransactionChainListener implements TransactionChainListener {
 123         @Override
 124         public void onTransactionChainFailed(TransactionChain<?, ?> transactionChain,
 125                                              AsyncTransaction<?, ?> asyncTransaction, Throwable throwable) {
 126             LOG.error("*** TxChain Creation Failed *** Attempts: {}", txChainAttempts);
 127             initTransactionChain();
 128         }
 129
 130         @Override
 131         public void onTransactionChainSuccessful(TransactionChain<?, ?> transactionChain) {
 132             LOG.trace("TxChain Creation Success");
 133         }
 134     }
 135
 136     public static DataBroker getBroker() {
 137         return dataBroker;
 138     }
 139
 140     // Convert ProtocolType to thrift protocol_type
 141     public static protocol_type convertToThriftProtocolType(BgpControlPlaneType protocolType) {
 142         // TODO: add implementation
 143         return protocol_type.PROTOCOL_ANY;
 144     }
 145
 146     // Convert EncapType to thrift encap_type
 147     public static encap_type convertToThriftEncapType(EncapType encapType) {
 148         // TODO: add implementation
 149         return encap_type.MPLS;
 150     }
 151
 152     static VpnInstanceOpDataEntry getVpnInstanceOpData(DataBroker broker, String rd) throws InterruptedException,
 153             ExecutionException, TimeoutException {
 154         InstanceIdentifier<VpnInstanceOpDataEntry> id = getVpnInstanceOpDataIdentifier(rd);
 155         Optional<VpnInstanceOpDataEntry> vpnInstanceOpData = MDSALUtil.read(broker,
 156                 LogicalDatastoreType.OPERATIONAL, id);
 157         if (vpnInstanceOpData.isPresent()) {
 158             return vpnInstanceOpData.get();
 159         }
 160         return null;
 161     }
 162
 163     public static InstanceIdentifier<VpnInstanceOpDataEntry> getVpnInstanceOpDataIdentifier(String rd) {
 164         return InstanceIdentifier.builder(VpnInstanceOpData.class)
 165                 .child(VpnInstanceOpDataEntry.class, new VpnInstanceOpDataEntryKey(rd)).build();
 166     }
 167
 168     public static String getVpnNameFromRd(DataBroker dataBroker2, String rd) {
 169         InstanceIdentifier<VpnInstanceOpDataEntry> id = InstanceIdentifier.create(VpnInstanceOpData.class)
 170                                                                           .child(VpnInstanceOpDataEntry.class,
 171                                                                                  new VpnInstanceOpDataEntryKey(rd));
 172         try {
 173             Optional<VpnInstanceOpDataEntry> vpnInstanceOpData =
 174                 SingleTransactionDataBroker.syncReadOptional(dataBroker2, LogicalDatastoreType.OPERATIONAL, id);
 175             return vpnInstanceOpData.isPresent() ? vpnInstanceOpData.get().getVpnInstanceName() : null;
 176         } catch (ReadFailedException e) {
 177             LOG.warn("Exception while retrieving VpnInstance name for RD {}", rd, e);
 178         }
 179         return null;
 180     }
 181 }
 182