Examples with DistributionGroupAdapter org.bboxdb.distribution.zookeeper.DistributionGroupAdapter used on opensource projects

Example 6 with DistributionGroupAdapter

use of org.bboxdb.distribution.zookeeper.DistributionGroupAdapter in project bboxdb by jnidzwetzki.

the class CreateInitialPartitioning method doesGroupExist.

/**
 * Does the group exist?
 * @param distributionGroup
 * @throws ZookeeperException
 * @throws ZookeeperNotFoundException
 */
private static void doesGroupExist(final String distributionGroup) throws ZookeeperException, ZookeeperNotFoundException {
    final DistributionGroupAdapter adapter = ZookeeperClientFactory.getZookeeperClient().getDistributionGroupAdapter();
    final List<String> knownGroups = adapter.getDistributionGroups();
    if (!knownGroups.contains(distributionGroup)) {
        System.err.format("Distribution group %s does not exist%n", distributionGroup);
        System.exit(-1);
    }
}

Example 7 with DistributionGroupAdapter

use of org.bboxdb.distribution.zookeeper.DistributionGroupAdapter in project bboxdb by jnidzwetzki.

the class CreateDistributionGroupHandler method handleRequest.

@Override
public /**
 * Create a new distribution group
 */
boolean handleRequest(final ByteBuffer encodedPackage, final short packageSequence, final ClientConnectionHandler clientConnectionHandler) throws IOException, PackageEncodeException {
    try {
        final CreateDistributionGroupRequest createPackage = CreateDistributionGroupRequest.decodeTuple(encodedPackage);
        final String distributionGroup = createPackage.getDistributionGroup();
        logger.info("Create distribution group: {}", distributionGroup);
        final DistributionGroupAdapter distributionGroupAdapter = ZookeeperClientFactory.getZookeeperClient().getDistributionGroupAdapter();
        final DistributionRegionAdapter distributionRegionAdapter = ZookeeperClientFactory.getZookeeperClient().getDistributionRegionAdapter();
        final List<String> knownGroups = distributionGroupAdapter.getDistributionGroups();
        if (knownGroups.contains(distributionGroup)) {
            logger.error("Untable to create distributon group {}, already exists", distributionGroup);
            final ErrorResponse responsePackage = new ErrorResponse(packageSequence, ErrorMessages.ERROR_DGROUP_EXISTS);
            clientConnectionHandler.writeResultPackage(responsePackage);
            return true;
        }
        distributionGroupAdapter.createDistributionGroup(distributionGroup, createPackage.getDistributionGroupConfiguration());
        final SpacePartitioner spacePartitioner = SpacePartitionerCache.getInstance().getSpacePartitionerForGroupName(distributionGroup);
        final DistributionRegion region = spacePartitioner.getRootNode();
        distributionRegionAdapter.setStateForDistributionRegion(region, DistributionRegionState.ACTIVE);
        clientConnectionHandler.writeResultPackage(new SuccessResponse(packageSequence));
    } catch (Exception e) {
        logger.warn("Error while create distribution group", e);
        final ErrorResponse responsePackage = new ErrorResponse(packageSequence, ErrorMessages.ERROR_EXCEPTION);
        clientConnectionHandler.writeResultPackage(responsePackage);
    }
    return true;
}

Example 8 with DistributionGroupAdapter

use of org.bboxdb.distribution.zookeeper.DistributionGroupAdapter in project bboxdb by jnidzwetzki.

the class DeleteDistributionGroupHandler method handleRequest.

@Override
public /**
 * Delete an existing distribution group
 */
boolean handleRequest(final ByteBuffer encodedPackage, final short packageSequence, final ClientConnectionHandler clientConnectionHandler) throws IOException, PackageEncodeException {
    try {
        final DeleteDistributionGroupRequest deletePackage = DeleteDistributionGroupRequest.decodeTuple(encodedPackage);
        final String distributionGroup = deletePackage.getDistributionGroup();
        logger.info("Delete distribution group: {}", distributionGroup);
        // Delete in Zookeeper
        final DistributionGroupAdapter distributionGroupZookeeperAdapter = ZookeeperClientFactory.getZookeeperClient().getDistributionGroupAdapter();
        distributionGroupZookeeperAdapter.deleteDistributionGroup(distributionGroup);
        // Delete local stored data
        logger.info("Delete distribution group, delete local stored data");
        clientConnectionHandler.getStorageRegistry().deleteAllTablesInDistributionGroup(distributionGroup);
        // Clear cached data
        TupleStoreConfigurationCache.getInstance().clear();
        logger.info("Delete distribution group - DONE");
        clientConnectionHandler.writeResultPackage(new SuccessResponse(packageSequence));
    } catch (Exception e) {
        logger.warn("Error while delete distribution group", e);
        final ErrorResponse responsePackage = new ErrorResponse(packageSequence, ErrorMessages.ERROR_EXCEPTION);
        clientConnectionHandler.writeResultPackage(responsePackage);
    }
    return true;
}

Example 9 with DistributionGroupAdapter

use of org.bboxdb.distribution.zookeeper.DistributionGroupAdapter in project bboxdb by jnidzwetzki.

the class DistributedRecoveryService method checkGroupVersion.

/**
 * Check the group version
 * @param storage
 * @param distributionGroupName
 * @param zookeeperClient
 */
protected void checkGroupVersion(final DiskStorage storage, final String distributionGroupName, final ZookeeperClient zookeeperClient) {
    try {
        final DistributionGroupMetadata metaData = DistributionGroupMetadataHelper.getMedatadaForGroup(storage.getBasedir().getAbsolutePath(), distributionGroupName);
        if (metaData == null) {
            logger.debug("Metadata for storage {} and group {} is null, skipping check", storage.getBasedir(), distributionGroupName);
            return;
        }
        final DistributionGroupAdapter distributionGroupZookeeperAdapter = new DistributionGroupAdapter(zookeeperClient);
        final String path = distributionGroupZookeeperAdapter.getDistributionGroupPath(distributionGroupName);
        final long remoteVersion = NodeMutationHelper.getNodeMutationVersion(zookeeperClient, path, null);
        final long localVersion = metaData.getVersion();
        if (remoteVersion != localVersion) {
            logger.error("Local version {} of dgroup {} does not match remtote version {}", localVersion, distributionGroupName, remoteVersion);
            System.exit(-1);
        }
    } catch (ZookeeperException | ZookeeperNotFoundException e) {
        logger.error("Got an exception while checking group version");
    }
}