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.util.concurrent.ThreadFactoryBuilder;
  11 import java.util.concurrent.BlockingQueue;
  12 import java.util.concurrent.ExecutorService;
  13 import java.util.concurrent.Executors;
  14 import java.util.concurrent.LinkedBlockingQueue;
  15 import java.util.concurrent.ThreadFactory;
  16 import java.util.concurrent.atomic.AtomicInteger;
  17 import org.opendaylight.controller.md.sal.binding.api.BindingTransactionChain;
  18 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
  19 import org.opendaylight.controller.md.sal.common.api.data.AsyncTransaction;
  20 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  21 import org.opendaylight.controller.md.sal.common.api.data.TransactionChain;
  22 import org.opendaylight.controller.md.sal.common.api.data.TransactionChainListener;
  23 import org.opendaylight.genius.utils.batching.ActionableResource;
  24 import org.opendaylight.genius.utils.batching.ActionableResourceImpl;
  25 import org.opendaylight.genius.utils.batching.ResourceBatchingManager;
  26 import org.opendaylight.genius.utils.batching.ResourceHandler;
  27 import org.opendaylight.netvirt.bgpmanager.thrift.gen.encap_type;
  28 import org.opendaylight.netvirt.bgpmanager.thrift.gen.protocol_type;
  29 import org.opendaylight.yang.gen.v1.urn.ericsson.params.xml.ns.yang.ebgp.rev150901.BgpControlPlaneType;
  30 import org.opendaylight.yang.gen.v1.urn.ericsson.params.xml.ns.yang.ebgp.rev150901.EncapType;
  31 import org.opendaylight.yangtools.yang.binding.DataObject;
  32 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  33 import org.slf4j.Logger;
  34 import org.slf4j.LoggerFactory;
  35
  36 public class BgpUtil {
  37     private static final Logger LOG = LoggerFactory.getLogger(BgpUtil.class);
  38     private static DataBroker dataBroker;
  39     private static BindingTransactionChain fibTransact;
  40     public static final int PERIODICITY = 500;
  41     private static AtomicInteger pendingWrTransaction = new AtomicInteger(0);
  42     public static final int BATCH_SIZE = 1000;
  43     public static Integer batchSize;
  44     public static Integer batchInterval;
  45     private static int txChainAttempts = 0;
  46
  47     private static BlockingQueue<ActionableResource> bgpResourcesBufferQ = new LinkedBlockingQueue<>();
  48
  49     // return number of pending Write Transactions with BGP-Util (no read)
  50     public static int getGetPendingWrTransaction() {
  51         return pendingWrTransaction.get();
  52     }
  53
  54     static ThreadFactory namedThreadFactory = new ThreadFactoryBuilder()
  55             .setNameFormat("bgp-util-mdsal-%d").build();
  56
  57     static ExecutorService threadPool = Executors.newFixedThreadPool(1, namedThreadFactory);
  58
  59
  60     static synchronized BindingTransactionChain getTransactionChain() {
  61         return fibTransact;
  62     }
  63
  64     static void registerWithBatchManager(ResourceHandler resourceHandler) {
  65         ResourceBatchingManager resBatchingManager = ResourceBatchingManager.getInstance();
  66         resBatchingManager.registerBatchableResource("BGP-RESOURCES", bgpResourcesBufferQ, resourceHandler);
  67     }
  68
  69     static <T extends DataObject> void update(DataBroker broker, final LogicalDatastoreType datastoreType,
  70                                               final InstanceIdentifier<T> path, final T data) {
  71         ActionableResource actResource = new ActionableResourceImpl(path.toString());
  72         actResource.setAction(ActionableResource.UPDATE);
  73         actResource.setInstanceIdentifier(path);
  74         actResource.setInstance(data);
  75         bgpResourcesBufferQ.add(actResource);
  76     }
  77
  78     public static <T extends DataObject> void write(DataBroker broker, final LogicalDatastoreType datastoreType,
  79                                                     final InstanceIdentifier<T> path, final T data) {
  80         ActionableResource actResource = new ActionableResourceImpl(path.toString());
  81         actResource.setAction(ActionableResource.CREATE);
  82         actResource.setInstanceIdentifier(path);
  83         actResource.setInstance(data);
  84         bgpResourcesBufferQ.add(actResource);
  85     }
  86
  87     static <T extends DataObject> void delete(DataBroker broker, final LogicalDatastoreType datastoreType,
  88                                               final InstanceIdentifier<T> path) {
  89         ActionableResource actResource = new ActionableResourceImpl(path.toString());
  90         actResource.setAction(ActionableResource.DELETE);
  91         actResource.setInstanceIdentifier(path);
  92         actResource.setInstance(null);
  93         bgpResourcesBufferQ.add(actResource);
  94     }
  95
  96     public static void setBroker(final DataBroker broker) {
  97         BgpUtil.dataBroker = broker;
  98         initTransactionChain();
  99     }
 100
 101     static synchronized void initTransactionChain() {
 102         if (fibTransact != null) {
 103             fibTransact.close();
 104             LOG.error("*** TxChain Close, *** Attempts: {}", txChainAttempts);
 105             fibTransact = null;
 106         }
 107         BgpUtil.fibTransact = dataBroker.createTransactionChain(new BgpUtilTransactionChainListener());
 108         txChainAttempts++;
 109     }
 110
 111     static class BgpUtilTransactionChainListener implements TransactionChainListener {
 112         @Override
 113         public void onTransactionChainFailed(TransactionChain<?, ?> transactionChain,
 114                                              AsyncTransaction<?, ?> asyncTransaction, Throwable throwable) {
 115             LOG.error("*** TxChain Creation Failed *** Attempts: {}", txChainAttempts);
 116             initTransactionChain();
 117         }
 118
 119         @Override
 120         public void onTransactionChainSuccessful(TransactionChain<?, ?> transactionChain) {
 121             LOG.trace("TxChain Creation Success");
 122         }
 123     }
 124
 125     public static DataBroker getBroker() {
 126         return dataBroker;
 127     }
 128
 129     // Convert ProtocolType to thrift protocol_type
 130     public static protocol_type convertToThriftProtocolType(BgpControlPlaneType protocolType ) {
 131         // TODO: add implementation
 132         return protocol_type.PROTOCOL_ANY;
 133     }
 134
 135     // Convert EncapType to thrift encap_type
 136     public static encap_type convertToThriftEncapType(EncapType encapType) {
 137         // TODO: add implementation
 138         return encap_type.MPLS;
 139     }
 140 }
 141