Examples with DistributionRegion org.bboxdb.distribution.region.DistributionRegion used on opensource projects

Example 36 with DistributionRegion

use of org.bboxdb.distribution.region.DistributionRegion in project bboxdb by jnidzwetzki.

the class DynamicgridSpacePartitioner method getDestinationForMerge.

@Override
public DistributionRegion getDestinationForMerge(final List<DistributionRegion> source) throws BBoxDBException {
    try {
        assert (source.size() == 2) : "We can only merge 2 regions";
        final BoundingBox bbox = BoundingBox.getCoveringBox(source.get(0).getConveringBox(), source.get(1).getConveringBox());
        final DistributionRegion parent = source.get(0).getParent();
        final String parentPath = distributionRegionZookeeperAdapter.getZookeeperPathForDistributionRegion(parent);
        final int childNumber = (int) parent.getHighestChildNumber();
        final String childPath = distributionRegionZookeeperAdapter.createNewChild(parentPath, childNumber, bbox, distributionGroupName);
        SpacePartitionerHelper.allocateSystemsToRegion(childPath, distributionGroupName, new ArrayList<>(), zookeeperClient);
        distributionRegionZookeeperAdapter.setStateForDistributionGroup(childPath, DistributionRegionState.ACTIVE);
        return distributionRegionZookeeperAdapter.getNodeForPath(source.get(0).getRootRegion(), childPath);
    } catch (Exception e) {
        throw new BBoxDBException(e);
    }
}

Example 37 with DistributionRegion

use of org.bboxdb.distribution.region.DistributionRegion in project bboxdb by jnidzwetzki.

the class DynamicgridSpacePartitioner method splitComplete.

@Override
public void splitComplete(final DistributionRegion sourceRegion, final List<DistributionRegion> destination) throws BBoxDBException {
    try {
        logger.info("Split done deleting: {}", sourceRegion.getIdentifier());
        distributionRegionZookeeperAdapter.deleteChild(sourceRegion);
        // Children are ready
        for (final DistributionRegion childRegion : destination) {
            distributionRegionZookeeperAdapter.setStateForDistributionRegion(childRegion, DistributionRegionState.ACTIVE);
        }
    } catch (Exception e) {
        throw new BBoxDBException(e);
    }
}

Example 38 with DistributionRegion

use of org.bboxdb.distribution.region.DistributionRegion in project bboxdb by jnidzwetzki.

the class DynamicgridSpacePartitioner method mergeComplete.

@Override
public void mergeComplete(final List<DistributionRegion> source, final DistributionRegion destination) throws BBoxDBException {
    try {
        for (final DistributionRegion childRegion : source) {
            logger.info("Merge done deleting: {}", childRegion.getIdentifier());
            distributionRegionZookeeperAdapter.deleteChild(childRegion);
        }
        distributionRegionZookeeperAdapter.setStateForDistributionRegion(destination, DistributionRegionState.ACTIVE);
    } catch (ZookeeperException e) {
        throw new BBoxDBException(e);
    }
}

Example 39 with DistributionRegion

use of org.bboxdb.distribution.region.DistributionRegion in project bboxdb by jnidzwetzki.

the class BBoxDBCluster method queryVersionTime.

@Override
public TupleListFuture queryVersionTime(final String table, final long timestamp) throws BBoxDBException {
    if (membershipConnectionService.getNumberOfConnections() == 0) {
        throw new BBoxDBException("queryTime called, but connection list is empty");
    }
    if (logger.isDebugEnabled()) {
        logger.debug("Query by for timestamp {} in table {}", timestamp, table);
    }
    final DistributionRegion distributionRegion = getRootNode(table);
    final Supplier<List<NetworkOperationFuture>> futureProvider = () -> {
        final List<RoutingHop> hops = RoutingHopHelper.getRoutingHopsForRead(distributionRegion, BoundingBox.FULL_SPACE);
        final List<NetworkOperationFuture> futures = new ArrayList<>();
        for (final RoutingHop hop : hops) {
            final BBoxDBInstance instance = hop.getDistributedInstance();
            final BBoxDBConnection connection = membershipConnectionService.getConnectionForInstance(instance);
            final RoutingHeader routingHeader = new RoutingHeader((short) 0, Arrays.asList(hop));
            final NetworkOperationFuture future = connection.getBboxDBClient().getVersionTimeFuture(table, timestamp, routingHeader);
            futures.add(future);
        }
        return futures;
    };
    return new TupleListFuture(futureProvider, new DoNothingDuplicateResolver(), table);
}

Example 40 with DistributionRegion

use of org.bboxdb.distribution.region.DistributionRegion in project bboxdb by jnidzwetzki.

the class BBoxDBCluster method lockTuple.

@Override
public EmptyResultFuture lockTuple(final String table, final Tuple tuple) throws BBoxDBException {
    final DistributionRegion distributionRegion = getRootNode(table);
    final Supplier<List<NetworkOperationFuture>> supplier = () -> {
        final List<RoutingHop> hops = RoutingHopHelper.getRoutingHopsForWrite(distributionRegion, tuple.getBoundingBox());
        final List<NetworkOperationFuture> futures = new ArrayList<>();
        for (final RoutingHop hop : hops) {
            final BBoxDBInstance instance = hop.getDistributedInstance();
            final BBoxDBConnection connection = membershipConnectionService.getConnectionForInstance(instance);
            final RoutingHeader routingHeader = new RoutingHeader((short) 0, Arrays.asList(hop));
            final NetworkOperationFuture future = connection.getBboxDBClient().createLockTupleFuture(table, tuple, routingHeader);
            futures.add(future);
        }
        return futures;
    };
    // When version locking fails, try again with another version
    return new EmptyResultFuture(supplier, FutureRetryPolicy.RETRY_POLICY_NONE);
}