idmanager/idmanager-impl/src/main/java/org/opendaylight/genius/idmanager/jobs/CleanUpJob.java

   1 /*
   2  * Copyright (c) 2016 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.genius.idmanager.jobs;
   9
  10 import static org.opendaylight.mdsal.common.api.LogicalDatastoreType.CONFIGURATION;
  11
  12 import com.google.common.util.concurrent.ListenableFuture;
  13 import java.util.Collections;
  14 import java.util.List;
  15 import java.util.Optional;
  16 import java.util.concurrent.Callable;
  17 import java.util.concurrent.ExecutionException;
  18 import org.opendaylight.genius.datastoreutils.SingleTransactionDataBroker;
  19 import org.opendaylight.genius.idmanager.IdLocalPool;
  20 import org.opendaylight.genius.idmanager.IdManagerException;
  21 import org.opendaylight.genius.idmanager.IdUtils;
  22 import org.opendaylight.genius.idmanager.ReleasedIdHolder;
  23 import org.opendaylight.genius.infra.ManagedNewTransactionRunner;
  24 import org.opendaylight.infrautils.jobcoordinator.JobCoordinator;
  25 import org.opendaylight.mdsal.binding.api.DataBroker;
  26 import org.opendaylight.mdsal.common.api.LogicalDatastoreType;
  27 import org.opendaylight.mdsal.common.api.TransactionCommitFailedException;
  28 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.idmanager.rev160406.id.pools.id.pool.ReleasedIdsHolder;
  29 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.idmanager.rev160406.id.pools.id.pool.ReleasedIdsHolderBuilder;
  30 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.lockmanager.rev160413.LockManagerService;
  31 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  32 import org.slf4j.Logger;
  33 import org.slf4j.LoggerFactory;
  34
  35 public class CleanUpJob implements Callable<List<? extends ListenableFuture<?>>> {
  36
  37     private static final Logger LOG = LoggerFactory.getLogger(CleanUpJob.class);
  38
  39     private final IdLocalPool idLocalPool;
  40     private final ManagedNewTransactionRunner txRunner;
  41     private final DataBroker broker;
  42     private final String parentPoolName;
  43     private final int blockSize;
  44     private final LockManagerService lockManager;
  45     private final IdUtils idUtils;
  46     private final JobCoordinator jobCoordinator;
  47
  48     public CleanUpJob(IdLocalPool idLocalPool, ManagedNewTransactionRunner txRunner, DataBroker broker,
  49             String parentPoolName, int blockSize,
  50             LockManagerService lockManager, IdUtils idUtils, JobCoordinator jobCoordinator) {
  51         this.idLocalPool = idLocalPool;
  52         this.txRunner = txRunner;
  53         this.broker = broker;
  54         this.parentPoolName = parentPoolName;
  55         this.blockSize = blockSize;
  56         this.lockManager = lockManager;
  57         this.idUtils = idUtils;
  58         this.jobCoordinator = jobCoordinator;
  59     }
  60
  61     @Override
  62     public List<ListenableFuture<Void>> call() throws Exception {
  63         cleanupExcessIds();
  64         return Collections.emptyList();
  65     }
  66
  67     private void cleanupExcessIds()
  68             throws IdManagerException, TransactionCommitFailedException, ExecutionException , InterruptedException {
  69         // We can update the availableCount here... and update it in DS using IdHolderSyncJob
  70         long totalAvailableIdCount = idLocalPool.getAvailableIds().getAvailableIdCount()
  71                 + idLocalPool.getReleasedIds().getAvailableIdCount();
  72         if (totalAvailableIdCount > blockSize * 2) {
  73             if (LOG.isDebugEnabled()) {
  74                 LOG.debug("Condition for cleanUp Satisfied for localPool {} - totalAvailableIdCount {}",
  75                         idLocalPool, totalAvailableIdCount);
  76             }
  77             String parentPoolNameIntern = parentPoolName.intern();
  78             InstanceIdentifier<ReleasedIdsHolder> releasedIdInstanceIdentifier
  79                     = idUtils.getReleasedIdsHolderInstance(parentPoolNameIntern);
  80             // We need lock manager because maybe one cluster tries to read the
  81             // available ids from the global pool while the other is writing. We
  82             // cannot rely on DSJC because that is not cluster-aware
  83             try {
  84                 idUtils.lock(lockManager, parentPoolNameIntern);
  85                 Optional<ReleasedIdsHolder> releasedIdsHolder = SingleTransactionDataBroker.syncReadOptional(broker,
  86                         CONFIGURATION, releasedIdInstanceIdentifier);
  87                 if (!releasedIdsHolder.isPresent()) {
  88                     LOG.error("ReleasedIds not present in parent pool. Unable to cleanup excess ids");
  89                     return;
  90                 }
  91                 if (LOG.isDebugEnabled()) {
  92                     LOG.debug("Releasing excesss Ids from local pool");
  93                 }
  94                 ReleasedIdHolder releasedIds = (ReleasedIdHolder) idLocalPool.getReleasedIds();
  95                 ReleasedIdsHolderBuilder releasedIdsParent = new ReleasedIdsHolderBuilder(releasedIdsHolder.get());
  96                 idUtils.freeExcessAvailableIds(releasedIds, releasedIdsParent, totalAvailableIdCount - blockSize * 2);
  97                 IdHolderSyncJob job = new IdHolderSyncJob(idLocalPool.getPoolName(), releasedIds, txRunner, idUtils);
  98                 jobCoordinator.enqueueJob(idLocalPool.getPoolName(), job, IdUtils.RETRY_COUNT);
  99                 SingleTransactionDataBroker.syncWrite(broker, LogicalDatastoreType.CONFIGURATION,
 100                         releasedIdInstanceIdentifier, releasedIdsParent.build());
 101             } finally {
 102                 idUtils.unlock(lockManager, parentPoolNameIntern);
 103             }
 104         }
 105     }
 106 }